Answer:
D
Explanation:
It is the longer spines that will help to protect the fish from predators. Longer spines caused a genetic change in the fish. The correct answer is option D.
What is the beneficial mutation in the mechanism ?It is the formation of the spines in the mechanism that is favorable as it is protecting the fish from prey so that they don't get attacked.
The many stickleback's populations went into the disparate with the parallel evolutionary's changes and among them the partial or can be complete loss of the pelvic spines. These spines do thought for protection of the fish from devouring by predators.
Initially, the stickleback's population in lake consisted mainly of fish with the pelvic spines but with over 15,000 years population changed to the fish without the pelvic spines. Studies having the living stickleback populations shows that the pelvic spines are an impressive defense against the larger predatory fish such as trout.
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1. How would you describe motion?
T_T
Answer:
The action of moving or being moved
Answer:
Motion is when the position of something changes after a period of time
Explanation:
1. The four butterflies in the illustrations represent the offspring in the F1 generation.
Which statement is best supported by the phenotypes of these offspring?
Answer
Complete question:
1. The four butterflies in the illustrations represent the offspring in the F1 generation.
Which statement is best supported by the phenotypes of these offspring?
The F1 generation is composed only of malesTwo of the offspring in the F1 generation will not be able to reproduceThe F1 generation is the result of a dihybrid crossTwo of the offspring in the F1 generation will experience a spontaneous mutationAnswer:
The F1 generation is the result of a dihybrid crossExplanation:
Due to technical problems, you will find the complete explanation in the attached files
If the amount of pollution is the same in the ocean where the fish are being caught, why
might some fish have more of this toxin than others?
Answer:
Because they might be taking in a higher concentration of the toxin through food or their environment or others could just be older meaning theyve ingested more of the toxin overtime
Explanation:
The level of toxin in fishes that lives in the area of the same pollution may differ due to the ability to consume toxins.
What do you mean by Toxins?Toxins may be defined as a poisonous substance that is a specific product of the metabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation.
While living in the area or habitat of the same pollution, still some fishes have more of this toxin than others. This is because these fishes have the ability to consume toxins from food resources that are present in the same habitat. While some fishes consume high toxins, but in results, they do not have the ability to resist in the high level of toxins, so they get eliminated or died.
Therefore, the level of toxin in fishes that lives in the area of the same pollution may differ due to the ability to consume toxins.
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DESCRIBE how the defect in the Single-Mutant (Sev−) R7 precursor cell causes the cell to become a cone cell instead of a photoreceptor cell
Answer and Explanation:
Cells directed their growth by getting the signals from distant or local bases and respond by directing signals. Each signal changes the cell state and decides how cells reply to consequent signals. RTK (receptor tyrosine kinase) signaling is needed for the arrangement of the R1-R7 photoreceptors. It activates the phyllopod transcription through the Ras/MAPK pathway. The Phyllopod transcription codes an adapter protein that guides the ubiquitin ligase Sina to target the transcription factor named Ttk (tram track) for deprivation. Tram track (Ttk) is the main inhibitor of the development of photoreceptors. The cells that do not damage Ttk become the ommatidium components, while those cells that damage it continues to develop photoreceptors. Receptor tyrosine kinase signaling is also involved in the development of ommatidium. Receptor tyrosine kinase signaling controls the propagation and existence of cells before they are employed in the cluster. RTK also regulates the differentiation of cone cells. Whether a cell becomes a photoreceptor or not is also decided by RTK signaling events.
a yellow light in a blue light shine together on a white screen what color will the screen be.
Answer:
Green
Explanation:
4.
Which type of population would be best suited for adapting to an environment that
undergoes a sudden change in climate?
a. A population with a higher numbers of males than females
b. A population with many phenotypes (physical characteristics)
C. A population with a high rate of emigration
d. A population with individuals that all express dominant traits.
Which category of biological molecule includes DNA?
1. carbohydrate
2. nucleic acid
3. protein
4. lipid
Answer: DNA is a nucleic acid
Explanation:
The acronym DNA stands for deoxyribonucleic acid.
Fruit production in anthophytes develops from: a. a female reproductive structure b. a male reproductive structure c. both male and female reproductive structures d. photosynthetic signals
Answer:
a. a female reproductive structure
Explanation:
Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.
Basically, there are two (2) methods of reproduction and these are;
I. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.
II. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.
Antophyte is the division name for flowering plants and they are considered to be the most successful of all the other division of plants in terms of reproduction.
Division Antophyta are classified into two (2) main categories and these includes;
I. Monocot: this group of flowering plants have a single cotyledon. Some examples of monocots are lilies, corns, grasses etc.
II. Dicot: this group of flowering plants have two cotyledon. Some examples of dicots are beans, peas, peanuts, etc.
Basically, fruit production in anthophytes develops from female reproductive structure known as the ovary. Once the ovary is fertilized by a sperm, they ripen into a fruit.
Factors that affect drug absorption include: (Choose the best answer.) Group of answer choices Protein-binding properties of the drug molecule Ability to chew and swallow Liver enzyme activity Lipid solubility of the drug
Answer:
The Factor that most affects drug absorption s the Lipid solubility of the drug
Explanation:
For a drug to accomplish its pharmacological function, it needs to suffer absorption mechanisms.
Most drugs, those that do not act locally, need to be correctly concentrated in their action sites or target sites. The first step is absorption.
This involves the obligated pass through the semipermeable plasmatic membrane to finally get in the blood. In blood, the drug moves, distributes, metabolizes, and the unaltered molecules are excreted.
There are different mechanisms in which drugs can cross the membrane that depends on the drug type. Depending on the effects of these mechanisms, there will be a more or less concentrated drug at the target sites.
Which is a carbohydrate monomer?
O glucose
O Sucrose
O glucagon
O glycogen
Answer:
glucose
Explanation:
glucose is a monosachcharide
2. Humans have 46 chromosomes in each somatic cell. a. How many chromosomes does a child receive from its father
Answer:
24
Explanation:
If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation
Complete question:
Phenotype Genotype Number of Individuals
Long-tailed TT 260
Long-tailed Tt 160
Short-tailed tt 80
If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation
Answer:
The expected change in allelic T frequencies probably changes from 0.6 to 0.57 in the following generation.
Explanation:
Due to technical problems, you will find the complete question, answer and explanation in the attached files.
Which two genes are most likely to be affected by a crossing over event?
A. a pair of genes located adjacent to another on a chromosome
B. a pair of genes separated by a third gene on a chromosome
C. a pair of genes located at opposite ends of a chromosome
D. a pair of genes located on different chromosomes
Answer:
C
Explanation:
i just took this test
Consider a diploid organism. What is the genotypic ratio expected to be observed in the offspring produced by two heterozygous parents
Answer:
See the answer below
Explanation:
A diploid organism is one that has 2 copies of each of its genes. When the two genes are the same, they are said to be homzygous, and when they are different, they are said to be heterozygous.
In this case, let us assume that the trait in question is represented by A for the dominant version and a for the recessive version. Since the parents are heterozygous, it means their genotypes would be Aa.
Aa x Aa
AA Aa Aa aa
Hence, the genotype ratio would be 1AA:2Aa:1aa. In other words, the genotypic ratio of homzygous to heterozygous offspring would be 1:1 because AA and aa are both homzygous while Aa is heterozygous.
The geno-typic ratio expected to be observed is 1:1
The following information should be considerd:
A diploid organism is that where it has 2 copies of each of its genes.When the two genes are similar, they are said to be homo-zygous else hetero-zygous.Since the parents are heterozygous, it means their genotypes would be Aa.
Aa x Aa
AA Aa Aa aa
So here the ratio should be 1:1
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2. The tremendous heat within the core and mantle causes convection cells to move within Earth.
(12.5 points)
true
False
Answer:
True
Explanation:
This is because as mantle convection slowly creep molecules that are warmer into the motion or movement in mantle cells, the cooler part of the rock move out of the mantle in the earth, convection currents continue to flow that carries heat into the mantle core. The mantle remain solid, the convection current that carry heat to the core, cause deformation of geologic structures on the mantle.
Which sense controls the position of muscles?
A. Smell
B. Touch
C. Taste
D. Proprioception
Answer:
proprioception
Explanation:
Proprioception, or kinesthesia, is the sense that lets us perceive the location, movement, and action of parts of the body. It encompasses a complex of sensations, including perception of joint position and movement, muscle force, and effort.
Answer:
the answer would be d
Explanation:
just took the quiz
As altitude increases, air pressure __________ (increases, decreases, or stays the same). This is a(n) ________(direct, indirect, of static) relationship. PLEASE HELP :)
Answer:
The correct answer is - decreases. direct.
Explanation:
Altitude is a distance measurement of distance in a vertical manner or how high something from the sea level. It helps in the height of the mountains and different places.
Air pressure and altitude are the two factors that are in direct relation as the air pressure decreases with the increase in altitude. the gases present in the higher elevations are fewer than the sea level.
Although all of the cells of a human develop from one fertilized egg, the human is born with many
different types of cells. Which statement best explains this observation?
a. Developing cells may express different parts of their identical genetic instructions.
b. Mutations occur during development as a result of envirnmental conditions.
C. All cells have different genetic material.
d. Some cells develop before other cells.
Answer:
a. Developing cells may express different parts of their identical genetic instructions.
Explanation:
Humans are multicellular organisms i.e. we possess many cells in our body. These cells increase as a result of division. Although all of the cells of humans develop from one fertilized egg (zygote), the human is born with many different types of cells because of a process called CELL DIFFERENTIATION.
Cell differentiation is a process in multicellular organisms where a cell becomes more specialized in function as it divides. The set of genes contained in each cell are not expressed simultaneously i.e. some genes are expressed while others are repressed. This is how cells with the same gene possess different functions. Therefore, according to this question, developing cells may express different parts of their identical genetic instructions to be of different types.
unique about obtaining water from artisan well
Answer:
Explanation:
Heh??
BIOLOGY HELP ASAP PLEASE. THANK YOU AND GOD BLESS
Karyotypes can be used to identify mutations in different forms of cancer, as you have seen in the HeLa and Philadelphia karyotypes. However, they are also useful in detecting other genetic abnormalities, such as Down syndrome (Trisomy 21). What would a karyotype of an individual with Down syndrome look like and what information would that provide to a geneticist?
Answer:
How do cells monitor DNA integrity?Cells monitor DNA integrity through check point processes that monitor the structure of the DNA as the cell cycle progresses.What went wrong with Henrietta Lacks’s cells?Henrietta’s cervical cells were infected with human papilloma virus, which mutated the DNA and made the cells cancerous.How does infection with human papillomavirus increase the risk of cervical cancer?Infection from human papilloma virus mutates the DNA of the cervical cells. Mutated cells increase the risk of those cells becoming cancerous.Philadelphia Karyotype. How do cells monitor DNA integrity?Cells monitor DNA integrity through check point processes that monitor the structure of the DNA as the cell cycle progresses.How are the chromosomes different in the cancer cells compared to normal cells?Chromosomes in cancer cells differ from those in normal cells because they usually have a larger
Chromosomes of cancer cells are often damaged mutated or missing parts, thus making them different from normal cells.How could these lead to different types of cancers?This can lead to different types of cancer, because when the genes replicate and cross over, the mutated genes are transferring. This can lead to ill functioning cells that lead to cancer.Essays Some types of cancer result from changes to individual genes, whereas others result from chromosome-level changes to the genome. Which of these types of cancer would you be able to detect by karyotype and why? Both would able to be detected by a karyotype.Because genes are on the chromosomes, when the individual genes are changed, it alters the appearance of the chromosome, which can be detected by a karyotype.When looking at the genome, one can see all the chromosomes making up the organism. If there was an alteration with the chromosomes, the karyotype would detect it. Karyotypes can be used to identify mutations in different forms of cancer, as you have seen in the HeLa and Philadelphia karyotypes. However, they are also useful in detecting other genetic abnormalities, such as Down syndrome. What would a karyotype of an individual with Down Syndrome look like, and what
would that provide to a geneticist? A karyotype for an individual with down syndrome would have an extra copy of a chromosome. This would help geneticists can view the abnormalities in the chromosomes, and help find out how that abnormality was caused.
Explanation:
A chromosome consists of mostly DNA and proteins with a small amount of RNA.
What is the shape of the eye? oval circle sphere dodecahedron
The student plans to use an antibody to the human cytochrome C protein in an ELISA test on cytochrome C samples from these four organisms. What should she use as a positive control
Answer:
A detector that can mark the protein that goes against cytochrome c
Explanation:
You could use a protein marker or even a chemical compound that permeates the amino acids that make up said protein in order to determine if it is positive or not.
A frog is able to live on land once it reaches the adult stage of its life cycle because it forms А. a large head and two legs B. lungs, which help it take in oxygen from the air, and four legs. a long tail and four legs. gills, which help it take in oxygen from the water, and two legs.
Answer:
I think that "gills, which help it take in oxygen from the water, and two legs." this is the answer
Explanation:
Hope this helps<3
A frog is able to live on land once it reaches the adult stage of its life cycle because it forms lungs, which help it take in oxygen from the air and four legs. The correct option is b.
What are amphibians?Amphibians are animals with vertebral columns that live on land and in water. Their skin is permeable, allowing them to breathe and respire. They are also cold-blooded and have a complicated life cycle.
Different from reptiles, amphibians lay unshelled eggs in the water. The eggs lack a soft and hard shell covering, but are protected from drying out by a jelly-like material.
Amphibians are four-legged creatures that can live on both land and water. The majority of amphibians deposit their eggs in water.
Therefore, the correct option is B. lungs, which help it take in oxygen from the air and four legs.
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Example and nature of Pollination being driven by symbiotic
Relationship besides bees explain how the plant and animal benefit
Select all that are NOT shapes of bacteria?
cilia, flagella, pseudopods
spirilla, flagella, cilia
coccus, cilia, flagella
bacillus, coccus, spirilla
Answer:
i think its c but i could be wrong... i failed biology soooo
Explanation:
Answer:
Explanation:
Select all that are NOT shapes of bacteria
bacillus, coccus, spirilla
What structure do plant cells have during cytokinesis that animal cells do not have?
Answer:
During cytokinesis in animal cells, a ring of actin filaments forms at the metaphase plate. The ring contracts, forming a cleavage furrow, which divides the cell in two. In plant cells, Golgi vesicles coalesce at the former metaphase plate, forming a phragmoplast.
Explanation:
5. Cellular respiration is balanced by photosynthesis; the two processes work
together to maintain the cycling of carbon and oxygen among Earth systems.
What describes the roles of carbon dioxide and water in these two processes?
a. Carbon dioxide and water are the reactants of both processes.
b. Carbon dioxide and water are the products of both processes.
c. Carbon dioxide is a reactant of photosynthesis; water is a reactant of cellular
respiration.
d. Carbon dioxide and water are the reactants of photosynthesis and the
products of cellular respiration.
Answer:
d. Carbon dioxide and water are the reactants of photosynthesis and the
products of cellular respiration.
Explanation:
Photosynthesis turns CO2 and water into oxygen and glucose. Plant foods are glucose and oxygen is a by-product. glucose.
Cellular breathing turns oxygen and glucose into carbon dioxide and water.
Water and carbon dioxide are byproducts, while ATP is
process-transformed energy.
Which substances can pass directly through cell surface membranes and do not use a carrier protein or chanel protein?
1 K+ and C∫- 2 CO2 3 C6H12O6
A 1 and 2
B 1 and 3
C 2 and 3
D 2 only
Answer:
D
Explanation:
What is the DNA and rna
Answer:
Explanation:
DNA and RNA are both part of Nucleic acids. The monomer of it is nucleotides, and its function, is that it stores genetic information. They have similarities and differences.
Some similarities are....
They are both biomolecules, both are nucleic acids, they are both involved in the making of proteins, both contain genetic information.
Some differences are...
DNA = Double-stranded
RNA = Singer-stranded
DNA = The sugar moiety is deoxy ribose
RNA = Ribose is the main sugar
DNA = Thymine is always there, but uracil is never found
RNA = Pyrimidine components differ. Thymine is never found
DNA = It follows Chargaffs rule (since it's double stranded)
RNA = Doesn't follow Chargaffs rule (since it's single stranded)
I answered a question similar to this, so I know what to put.
Hope this helped!
What do you call the process of water seeping into the ground?
Answer:
Process of seeping (flow or leak slowly through a porous material or small holes) of water into the ground is called infiltration. Infiltration is the process by which water on the ground surface enters the soil.
Water not used by plants moves deeper into the ground. The top of the water in the soil, sand, or rocks is called the water table and the water that fills the empty spaces and cracks is called groundwater. Water seeping down from the land surface adds to the groundwater and is called recharge water.
Hence The process of water seepage into the ground is called Infiltration.
