Answer:
44.8 lb
Explanation:
160 lb * 0.28= 44.8 lb
Answer:
44.8 lb
Explanation:
160 x 0.28 = 44.8
What is the answers plz
Answer:
4. The formation and evolutuion of stars and galaxies
A student is given a list of traits and is asked to organize them in a Venn diagram as shown below.
Inherited Both Acquired
Traits
Wolf's social status
Tiger's stripes
Blood type A
A scar
Skin color
Musical talent
-
III
Q
Which traits should the student put in section II (Both)?
O a scar and blood type
tiger's stripes and wolf's social status
musical talent and wolf's social status
musical talent and skin color
Answer: a scar and wolf's social status
Explanation:
The acquired traits can be defined as the traits, which are only influenced by the environment of the organism. The acquired trait cannot be passed down to the offspring, as they are not genetically determined. A scar and the social status of any organism is dependent on the behavior of the organism to the environment, no genes code for both of these characters. So, scars and Wolf's social status is an acquired trait.
The trait that should be put in section II (Both) is "a scar", as scars can be acquired due to injury or trauma, but some people may also have a genetic predisposition to scarring.
What are inherited and acquired trait?Inherited traits are characteristics that are determined by an individual's genetic makeup and are passed down from parents to their offspring through the process of reproduction. Examples of inherited traits include eye color, hair color, blood type, and facial features.
Acquired traits are characteristics that are developed during an individual's lifetime as a result of their interactions with the environment. Examples of acquired traits include scars, calluses, tanned skin, learned behaviors, and language proficiency.
While some traits may be either entirely inherited or acquired, many traits are influenced by both genetic and environmental factors. The complex interplay between nature and nurture contributes to the vast diversity of traits and characteristics found within the human population.
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What other characteristics can you think of that make an organism a good disperser?
Answer:
Explanation:
For organism to be described as a good disperser, it must possess some characteristics which includes:
Rapid growth with a short life span and early maturity
They must also have many small offsprings and with little parental care or protection
They are easily adapted to unstable environments and can be "pioneer" species.
They often undergo self fertilization and have large seeds etc
Some fish have bony fins. If the body of water they are in dries out, these fins can be used to help the fish "walk" to another body of water. In this context, bony fins are an example of ________. A) an exaptation B) an adaptation C) a macroevolutionary event D) pedomorphosis
Answer:
A) an exaptation
Explanation:
Multiple alleles____ can interact how with traits
Which statement describes a feature of equal are projection?
Option C
Latitude lines meet at the poles.
Explanation:
Several equivalent projections were developed in an attempt to minimize the distortion of countries and continents of planet Earth,keeping the area constant.
hope it helps
Answer:
c
Explanation:
i did it already
24. Explain why water shortages occur frequently in
parts of New York State even though the water
supply is nearly constant. [1]
Answer:
Water is an essential element of life. Water is life and it has a lot of functions such as for drinking and other domestic purposes. There could however be water shortage in some parts of Nee York states as a result of country as a result of the effects of drought due to low amount of rainfall in the area.
There may also be issues with the various instruments which helps in the transport of water to homes which could also lead to the shortage.
Shortages occur frequently in parts of New York State even though the water supply is nearly constant as there are some issues with the water transport system and also low rainfall in some areas.
What is the way of water transportation?There can be several methods by which water transportation can be made easy.
Methods of transportation are included under three categories:
Aqueducts: it involves pipelines, canals, tunnels and bridges. Container shipment: it involves tank truck, tank car, and tank ship. Towing: it includes a tugboat is used to pull an iceberg or a large water bag along behind it.Shortages occur frequently in parts of New York State even though the water supply is nearly constant as there are some issues with the water transport system and also low rainfall in some areas.
Thus, this can be the reason behind water shortage in New York.
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2. Is salt water alkaline or acidic?
Answer: hh
Explanation:hhh
*Penguins are adapted to live in the antarctic. Which of the following is
NOT true?
A)The dark coloured feathers reflect heat from the sun
B)Their webbed feet make them powerful swimmers
C)They have overlapping feathers to waterproof them
D)They have thick skin and lots of fat to keep them warm
Answer:
B their webbed feet make them powerful swimmers
n
In order to extend the civil rights of slaves after the Civil War, the United States
banned slavery with the Fourteenth Amendment and created new protections with the Thir
banned slavery with the Fifteenth Amendment and created new protections with the Thirtee
banned slavery with the Thirteenth Amendment and created new protections with the Fourt
banned slavery with the Fourteenth Amendment and created new protections with the Fiftes
Answer:
C. banned slavery with the Thirteenth Amendment and created new protections with the Fourteenth Amendment.
Explanation:
e2021
The 14th Amendment to the U.S. Constitution, ratified in 1868, promised “equal protection of the laws” to all citizens, including former slaves, and extended citizenship to anybody born or naturalized in the country. Thus, option C is correct.
What is the civil war?War between established parties within the same state is known as an intrastate conflict or civil war (or country).
One side's objective may be to seize power in the nation or a specific area, secure regional independence, or alter governmental practices.
One of their allegations was that the Farm was operated in violation of the 13th Amendment, which forbids “slavery or involuntary servitude, except as a punishment for crime,” since it amounted to slavery.
Therefore, banned slavery with the Thirteenth Amendment and created new protections with the Fourteenth Amendment.
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One of the three amendments to abolish slavery that were approved during the Reconstruction era.
Mutations and DNA replication errors can alter base sequences, thereby potentially creating or eliminating recognition sites. Group of answer choices True False
Answer:
The given statement is true.
Explanation:
An error at the time of the replication of DNA or mutation can either result in the addition or deletion of DNA bases that eventually makes a substantial change in the sequence of DNA, and thus, will exhibit a substantial influence on the recognition sequence because of which one can witness a change in the site of recognition.
This variation witnessed in the DNA's recognition site can be evaluated by treating the mutated DNA with the restriction enzymes that exhibit a uniqueness for the restriction sites. Afterward, by going through the process of gel electrophoresis one can witness the change in the number of bands of DNA showing variation in the restriction sites.
I will mark as BRANLIEST!
I will give 55 points to answers this correctly!
The tometti fossils are most related to?.......
Answer:
the tometti fossil are most related to ostriches or to crocodiles.
Match the terms to their definition.
the number of individual organisms born into a population in a given year
the movement of individuals out of a population
the number of individual organisms that die in a population in a given year
the movement of individuals into a population
Answer:
Birth rate: the number of individual organisms born into a population in a given year
Emigration: the movement of individuals out of a population
Death rate: the number of individual organisms that die in a population in a given year
Immigration: the movement of individuals into a population
Matching these definitions to their appropriate terms
Birth rate The number of individual organisms born into a population in a given yearEmigration: The movement of individuals out of a populationDeath rate : The number of individual organisms that die in a population in a given year. Immigration : The movement of individuals into a populationIndividual organisms enter a population either by immigration or by birth while individual organisms leave a population by either emigration or death. While the general term used to describe the movement of individuals in and out of a population is migration.
Death rate is number of deaths that occurs in a particular population over a period ( usually 1 year ) while Birth rate is the number of births that occurs in a population over a period as well.
Hence we can conclude that the terms matching each description as mentioned in the question are , Birth Rate, Emigration, Death rate and immigration.
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Which of the following is true? Group of answer choices In the brain, neurons are more abundant than neuroglia. An action potential never occurs in dendrites. When a neuron is stimulated, Na+ gates open and allow Na+ to exit the cell. In a myelinated fiber, only the initial segment in the trigger zone has voltage-regulated channels. Norepinephrine is a neuropeptide.
Answer:
The true statements are:
An action potential never occurs in dendrites.
Norepinephrine is a monoamine.
Explanation:
In the following question only two statements are true that are; an action potential never occurs in dendrites as it occurs in nerves to send signals from cell body and axon and transmit it.
The second correct statement is Norepinephrine is a monoamine as these are particular neurotransmitters dopamine, serotonin, also known as catecholamines sometimes.
Thus, the correct answer is :
An action potential never occurs in dendrites.
Norepinephrine is a monoamine.
Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: anterolateral system (spinothalamic tracts). vestibulospinal tract. reticulospinal tract. spinocerebellar tracts.
Answer:
Spinocerebellar tracts.
Explanation:
Spinocerebellar tracts are afferent neurons that transmit proprioceptive information from the peripheral nervous system ( muscles and joints propricetors) to the cerebellum. It originated from the spinal cord and end at the cerebellum. It carry unconscious proprioceptive sensory information from the muscles, organs to the cerebellum.
Arrange the isotopes of oxygen and carbon in order of decreasing number of neutrons.
Rank the isotopes from most o fewest neutrons. To rank items as equivalent, overlap them.
Answer:
C-12 > C-13 > C-14,O-16 > C-16,O-18
Explanation:
Generally, isotopes are described as atoms of the same elements with the same atomic number but different number of neutrons.
Hence,
For O-18, oxygen has an atomic number of 8 and neutron number of 10.
For C-14, carbon has an atomic number of 6 and neutron number of 8.
For C-13, carbon has an atomic number of 6 and neutron number of 7.
For C-16, carbon has an atomic number of 6 and neutron number of 10.
For carbon 12, carbon has an atomic number of 6 and neutron number of 6.
For O-16, oxygen has an atomic number of 8 and neutron number of 8.
Hence the rank from the fewest neutrons would be C-12>C-13>C-14,O-16>C-16,O-18
2.Black fur(B) in guinea pigs is dominant over white fur(b). Find theprobability of an offspring with the same phenotype as its parents in across between a homozygous black and a heterozygous black guineapig
.A. 0%,
25%B.25%,
25%C.50%,50%
D.75%, 25%
E.100%, 0%
Answer:
Option d: black 75%, white 25%
Explanation:
The cross is between a homozygous black and a heterozygous black guinea pig
Parents gen. BB x Bb
F1 generation BB Bb Bb bb
The probability of an offspring with the same phenotype as its parents is
Genotype: BB - 25% and Bb - 50%, bb-25%
Phenotype: black 75%, white 25%
A scientist isolates a microbe from a contaminated water source. She thinks that the organism might be a new bacteria that is capable of surviving in the presence of lead, a heavy metal. She makes tubes of growth medium containing either no lead, 0.1 mg lead, 0.25 mg lead, 0.5 mg of lead or 1 mg of lead. She inoculates each tube with the 10 x 103 cells of the new organism and then incubates the inoculated medium at 37oC. After 48 hours, she examines the tubes of medium and finds that there is no growth in any of them. However, she finds that the bacteria grew fine in medium that did not contain any lead. She decides to repeat the experiment using lower concentrations of lead than those she used initially.
what conclusion can the scientist in this scenario make from her result?
1) all contaminated water contains high levels of lead and other heavy metals
2) the amount of lead used in the experiment killed the bacteria being tested
3) all experiment should be repeated three times or more
4) lead-contaminated water does not contain any bacteria at all
5) the test bacteria take more than 48 hours to grow in the laboratory when incubated at 37 degree Celsius
Answer:
2)
Explanation:
The positive control is the treatment where bacteria grew without lead. Since positive control indicates the presence of bacteria in the experimental conditions, it is possible to confirm that they only death in presence of this metal. However, it is important to note that it is imperative to repeat this experiment three times and also to include a negative control in order to confirm these results.
What happens to the food in small intestine?
Answer:
the nutrients in the food is absorbed
Answer:
ExplanatBlood in the villi helps to absorb nutrients and sugar molecules.
Nutrients from food are absorbed.
Fat is broken down into smaller droplets.
Most of the digestion that occurs in the small intestines occurs in the duodenum, which is the first part of the small intestines. This is where fats are broken down into smaller droplets by emulsifiers and lipases. Absorption takes place in the other parts through the villi.ion:
Suppose a certain drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit.
A. The formation of alcohol C. Glycolysis
B. Oxidative phosphorylation D. Kreb’s cycle
Answer:
The options to this question is incomplete, the correct options are:
A) the citric acid cycle.
B) oxidative phosphorylation.
C) glycolysis.
D) the citric acid cycle and oxidative phosphorylation
The answer is D
Explanation:
Cellular respiration is an important metabolic process carried out by the cells of living organisms including human cells. Aerobic cellular respiration involves three main stages viz: Glycolysis, Kreb's cycle, and Oxidative phosphorylation. These three processes occur to bring about the breakdown of glucose to synthesize ATP.
Glycolysis occurs in the cytoplasm while Kreb's cycle and Oxidative phosphorylation both occurs in the matrix and intracellular membrane of the Mitochondrion respectively. Hence, a drug that causes holes in both mitochondrial membranes will affect both Kreb's cycle and Oxidative phosphorylation.
Which phase the cell cycle would the cell stop in if you disrupted:_______.
1. the protein DNA polymerase S phase.
2. the depolymerization of the microtubules metaphase.
3. the polymerization of actin cytokenesis.
4. the protein ligase S phase.
5. the chiasmata formation.
The interphase (G1, S, and G2 phases) precedes meiosis (Meiosis 1 and meiosis 2). Immediately after meiosis, cytokinesis occurs.
1: S phase / 2: Anaphase 1 and 2 / 3: cytokinesis / 4: S phase / 5: Prophase 1.
---------------------------------
The interphase occurs before cell division. It is composed of the G1, S, and G2 stages.
During the S stage occurs the DNI replication process. At this point, also happens the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated.
Among the enzymes involved in the DNA replication process, two of them are
DNA polymerase III• Responsible for DNA elongation by adding nucleotides to the growing chain, from 3' to 5' extremes.
• It includes only nucleotides that complement the original strand.
• They need to recognize a primer to begin.
DNA polymerase I eliminate ARN primers and substitute them with DNA. DNA ligase seals the gaps that remain after replacing the primers by reestablishing phosphodiester bonds. They also bind the Okasaki fragments during the discontinuous strain synthesis.1. the protein DNA polymerase >>>>>>> S phase.
4. the protein ligase >>>>>>> S phase.
****************************************************
Through Meiosis, a diploid cell (2n) produces four haploid daughter cells (n).
After DNA replication there are two meiotic phases.
The first one is a reductive phase, in which homologous chromosomes separate. In the second phase, the cell suffers a new, not reductive division.During prophase 1 of meiosis, each chromosome carefully pairs with its homologous chromosome.
Crossing-over is the interchange of genetic information between two homologous chromosomes, making the daughter cells genetically different from the original one.
The point where the interchange of genetic information occurs is the chiasma.
5. the chiasma formation >>>>>>> propahase I
****************************************************
Antiparallel microtubules between the separating chromosomes compose the spindle apparatus.
These fibers get elongated during the anaphase, while chromosomes or chromatids migrate to the opposite poles of the cell.
The depolarization of the microtubules drives the chromosomes or chromatids to segregate during the anaphase.
2. the depolymerization of the microtubules >>>>>> anaphase I and II
****************************************************
Actin is a globular protein. Actin filaments are composed of the polymerization of the protein.
Among their many functions, actin polymers are involved in cytokinesis.
The final strangulation of the cytoplasm during the division process occurs through the organization of actin filaments.
Filaments form a ring structure, which progressively narrows its diameter until the complete separation of the two daughter cells.
3. the polymerization of actin >>>>>>> cytokenesis
*******************************
1. the protein DNA polymerase >>>>>>>>> S phase.
2. the depolymerization of the microtubules >>>>>>>>> anaphase I and II.
3. the polymerization of actin >>>>>>>>> cytokenesis.
4. the protein ligase >>>>>>>>> S phase
5. the chiasmata formation >>>>>>>>>>> prophase I
-----------------------------------------
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Some theories are developed from repeated testing of a single hypothesis. Cell theory, germ theory, and the theory of evolution all have developed from the testing of multiple related hypotheses. Which statement best explains why some theories develop this way?
Answer:
Each experiment reveals a different piece of information that is needed to develop the theory.
Explanation:
Answer:
Each experiment reveals a different piece of information that is needed to develop the theory.
Explanation:
Explain phloem structure and function, using the following terms: sieve elements, sieve cells, companion cells, girdling, translocation, sieve areas, P-proteins, non-reducing sugars.
Answer:
Explanation:
Phloem cells are conducting vessels that are found in vascular plant. They are used in the transport of photosynthate produce during photosynthesis from the source of production to other parts of the body.
It consist of sieve elements, which are the conducting vessel that aids transport of sugar round the body. They are very active before maturity at mature they are no longer in use.
Companion cells are used in replacement of sieve element at maturity, they function in metabolism together with the sieve tube Translocation is the transport or movement of sugar round the body.
Girdlings is the removal of the bark of a plant this can inhibit active transport of food.
Non-reducing sugar are monosacharrides such as glucose that are produce and transported round the body of the plant.
P-protein are found in the plants sap usually in large amount in the sieve elements.
Look at the ocean system described below.
plankton
herring
octopus
shark
What will most likely happen to this ecosystem if the herring are killed by a
virus?
A. The shark population will increase.
B. The plankton will die off over time.
C. The octopus population will increase.
D. The octopus and shark populations will decline.
Answer:
I think the ans is D (The octopus and shark populations will decline.)
Most likely happen to this ecosystem if the herring are killed by a
virus D. The octopus and shark populations will decline.
What is a ecosystem?An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscapes, work together to form a bubble of life.
What is importance of ecosystem?As a society, we depend on healthy ecosystems to do many things; to purify the air so we can breathe properly, sequester carbon for climate regulation, cycle nutrients so we have access to clean drinking water without costly infrastructure, and pollinate our crops so we don't go hungry.
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The same sentences are written with a substitution, deletion, or insertion, much as a gene may have a substitution, deletion, or insertion mutation. Identify which sentence represents a substitution, which represents a deletion, and which represents an insertion.
Answer:
The question is incomplete, the complete question has been added as an attachment.
THE DGR AN represents deletion mutation
THE RED ANA TRA N represents insertion mutation
THE FOX WTS RED represents substitution mutation
Explanation:
Mutation is a change in the nucleotide sequence of a gene. It can be of different types depending on how it occurs. A deletion mutation is that which involves the removal of one or more nucleotide base from the sequence.
An insertion mutation is the addition of one or more nucleotide bases to the sequence.
A substitution mutation is the replacement of one or more nucleotide base in a sequence.
The original sentences were:
1. THE RED ANT RAN
2. THE FOX WAS RED
3. THE DOG RAN
The three sentences that mutated/changed are:
1. THE DGR AN- in this sentence, letter O which represents one base is missing due to removal, making the original sentence (THE DOG RAN) alterated. Hence, this represents an example of deletion mutation.
2. THE RED ANA TRA N - in this case, Letter A has been added in between N and T. This makes the original sentence (THE RED ANT RAN) altered. Since addition of letter (base) occurred, this represents an example of insertion mutation.
3. THE FOX WTS RED - In this case, letter A in "WAS" was replaced by T, making the original sentence (THE FOX WAS RED) altered. Since a replacement of letter (base) is the case here, it represents an example of substitution mutation.
What impact does the atmosphere have on the Earth's cycles? Select four options,
produces wind currents
transfers nitrogen from air to soil
transfers water into Earth's oceans
moves oxygen from volcanic eruptions for plants
moves oxygen and carbon dioxide through the biosphere?
Answer:
D
Explanation:
I think the atmosphere facilitates the distribution of oxygen and co2
Answer:
D
Explanation:
Many traits (phenotypes), like eye color, are controlled by multiple genes. If eye color were controlled by the number of genes indicated below, how many possible genotype combinations would there be in the following scenarios?
a. 5 Genes:
b. 10 Genes:
c. 20 Genes:
Answer:
Explanation:
If there are 5 genes, let us assume that they are in the alternative forms with 2 possible gets for each five... So we have
2 possible gametes for each five = 2 to the power of 5 = 32 gametes
Then genotypes = 3 to the power of 5 = 243
The same also for 10 genes
2 possible gametes for each 10 = 2 to the power of 10 = 1024 gametes
Then genotypes = 3 to the power of 10 = 59,049
The same also for 20 genes
2 possible gametes for each 20 = 2 to the power of 20= 1,048,576
Them genotypes = 3 to the power of 20 = 3,486,784,401
Many traits (phenotypes), like eye color, are controlled by multiple genes. In the following scenario, the number of genes are:
a. 5 Genes: 243 genes
b. 10 Genes: 59,049 genes
c. 20 Genes: 3,486,784,401 genes
What are genes?Genes are small hereditary materials bound in tiny beads like fashion and make a chromosome.
Now, the number of genes in the given scenario is:
a. 5 Genes: If there are 5 genes, let us assume that they are in the alternative forms, with 2 possible gets for each five.
So, 2 possible gametes for each five = 2 to the power of 5 = 32 gametes
The genotypes combinations = 3 to the power of 5 = 243
b. 10 Genes: 2 possible gametes for each 10 = 2 to the power of 10 = 1024 gametes
The genotypes combinations = 3 to the power of 10 = 59,049
c. 20 Genes: 2 possible gametes for each 20 = 2 to the power of 20 = 1,048,576
The genotypes combinations = 3 to the power of 20 = 3,486,784,401
Therefore, the number of genes is:
a. 5 Genes: 243 genes
b. 10 Genes: 59,049 genes
c. 20 Genes: 3,486,784,401 genes
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(e) Predict the effect of the removal of the final electron acceptor on the rate of carbon fixation by the chloroplast. Justify your prediction
Answer:
The ATPs produced during Chemeiosmosis, in the chloroplast is needed during Calvin cycle to fix carbon for production of CHO, protein and fats during conversion of 3C-glyceride phosphate(GP) to 2C- triose phosphate.(TP) .
The ATPs is needed for this reduction to take place in the presence of NADPH(which is oxdized to NADP).
Therefore, if the final electron acceptor is removed, there will be no electron transport chains which generated the PMF, for pumping H+ across into the thylakoid membrane of the chloroplast, to generate the electrochemical gradients, needed for the energy for ATPase synthase enzymes,to synthesize ATPs production.
Therefore, the removal of the electron acceptor (oxygen) leads to stoppage of electron transport chain, and hence loss of ATP s, and therefore, no Carbon fixation as CHO, or protein, or fats.
Explanation:
What effect does the sun have on surface water?
Answer:
it evaporates it and makes the water cycle work
Explanation:
The sun has several effects on surface water. It causes evaporation, converting water into vapor and contributing to the water cycle.
The effect of tghe sunThe sun's heat regulates water temperature and supports photosynthesis in aquatic plants, which produce oxygen and serve as food sources.
Solar energy drives surface water circulation and influences biological activity, promoting biodiversity in water bodies.
Overall, the sun plays a vital role in the dynamics and functioning of aquatic ecosystems.
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Which of the following are true?
1. Random Fertilization means that any one sperm may fertilize any one egg as a chance event.
II. Random fertilization allows for a lot of diversity in offspring.
III. Crossing over and independent assortment do NOT affect the diversity of offspring produced
by random fertilization.
Select one:
o
a. I and III
b. II and III
c. I, II, and III
d. I and II
Answer:
1 and 2
Explanation: Random Fertilization means that any one sperm may fertilize any one egg as a chance event.
Random fertilization allows for a lot of diversity in offspring.
Random Fertilization means that any one sperm may fertilize any one egg as a chance event and allows for a lot of diversity in offspring. So, the correct option is (D).
What is Random Fertilization?Random fertilization refers to random mating. In this, during sexual reproduction, male gametes and female gametes which fuse to produce offspring are randomly selected from the pool of male and female gametes.
Random fertilization increases genetic diversity. When a male gamete and a female gamete finally meet which results in a large number of genetic possibilities built up during independent assortment and crossing over.
The example of Random Fertilization is when the two individuals mate, where each is capable of producing more than 8 million potential gametes, then the random probability of any one sperm and egg coming together showing 70 trillion different combinations.
Thus, Random Fertilization means that any one sperm may fertilize any one egg as a chance event and allows for a lot of diversity in offspring. So, the correct option is (D).
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