Answer: exotic
Explanation: exotic can be thought of as “not from here”
What prevents multiple sperm from fertilizing an egg?
How do molecules in the cells of the body release energy
Explanation:
Chemical energy is stored in the bonds of sugars. When the bonds of a sugar molecule are broken, a burst of energy is released that the cell can use. Cells can release energy in two basic processes: cellular respiration and fermentation. ... In cells use oxygen to release energy stored in sugars such as glucose.
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why is fertilizer essential
Answer:
Fertilizer is essential in agricultural practice because it adds the needed nutrients to the soil.
Explanation:
Given that each successful cultivation of crops leads to the removal of nutrients in the soil. To retain the level of nutrients in the soil so the plants can germinate extremely well. There is a need to add fertilizers to the soil.
Therefore, fertilizers are essential because "it adds the needed nutrients to the soil." Thereby retaining and improving the harvest level of plant crops.
How many polar bodies are formed in a female at the end of meiosis ?
Answer:
Three polar bodies may form during oogenesis. These polar bodies will not form mature gametes. Conversely, four haploid spermatids form during meiosis from the primary spermatocyte.
Explanation:
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Define the word ecology in
your own words,
Answer:
The branch of biology that deals with the relations of organisms to one another and to their physical surrounding
Explanation:
Ecology:- is the scientific study of the interactions between living creatures, such as people, and their physical surroundings. Individuals, populations, communities, ecosystems, and the biosphere are all considered in ecology. Biogeography, evolutionary biology, genetics, ethology, and natural history are all closely connected fields of ecology.
please help
is it currently possible to take a core sample?
Answer is YES your welcome
Explanation:
Core samples are most often taken with their long axis oriented roughly parallel to the axis of a borehole, or parallel to the gravity field for the gravity-driven tools. However it is also possible to take core samples from the wall of an existing borehole.
The generation of action potentials in neurons located within the ____________ causes them to secrete their hormones
Answer:
The correct answer is - the hypothalamus.
Explanation:
The generation of action potentials or nerve impulses generated in the neurons within the hypothalamus which result in the secretion of the hormones.
Hypothalamus is the part of the brain that plays many roles in the body including homeostasis by the secretion of the hormones which are released due to the nerve impulses generated in the nerves present within the hypothalamus.
what are the effects of mutations
Explanation:
When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.
Answer:
. Positive change to the organism
. Negative change to the organism
Explanation:
Study the punnett square shown here.
What phenotypes will be shown by the offspring?
Answer:
all offspring will show the dominant phenotype for the trait
Explanation:
A scan of Sam's genome for the 100 most common mutations known to cause RP didn't find anything. How can you explain this result?
Answer:
He is either not carrying the gene for RP or the RP gene has mutated.
Explanation:
RP or Retina Pigmentosa is an eye defect inherited by a person from a parent. The disease is degenerative as the individual gradually loses his sight. It normally starts off as night-blindness and could go as bad as a total loss of sight.
The mutation of both the RPGR and RP2 genes which are responsible for the function and structure of light-reception in the eye accounts for most cases of Retina Pigmentosa disease.
Draw structure of Gand? 3 marks
Answer:
you draw
Explanation:
What simple machines have been used on pyramid? What advantages do they give?
Answer:
inclined plane and lever. advantages they got allowed them to move rocks higher as they built up and to lift heavier objects.
4. If a mutation blocked the function of the signal recognition particle, making it unable to bind signal sequence, what would result
Answer:
All proteins would be translated in the cytoplasm
Explanation:
The signal recognition particle (SRP) is a cytoplasmic RNA-protein (ribonucleoprotein) complex whose primary role is to target signal peptide‐bearing proteins to the plasma membrane in prokaryotes and to the endoplasmic reticulum in eukaryotes. In eukaryotic organisms, SRP binds to the signal sequence of the protein when the growing polypeptide chain emerges from the ribosome in the cytoplasm. This binding is key because it results in a slowing of translation, a mechanism known as elongation arrest. Therefore, without a functional SRP, elongation arrest would not occur and proteins would be translated on free ribosomes in the cytoplasm.
Why do cells divide? :
The _________ the cell is, the __________the surface area to volume ratio…… there is more outside and less inside.
If a cell is too ________, it takes too __________to get stuff from the outside to the inside.
Types of Cell Division
_______________________ - not sexual reproduction- when cells produce copies of themselves as an organism grows.
_______________________ - when organisms pass on half of their DNA that combines with another set of DNA to make a new organism.
The Cell Cycle
Cells go through a series of steps in a specific order, beginning after a cell has divided
Interphase
G1(gap 1)- ______________________________________________
S (Synthesis)-____________________________________________
G2(gap 2)- ______________________________________________
_________- the division of the nucleus of a cell.
___________- the division of the rest of the cell (the cytoplasm)
_______- cells usually exit the cell cycle after dividing
Bacteria(prokaryotes) are much simpler, doing a process called _________________.
Mitosis
Mitosis is the division of the nucleus , made up of _______ phases:
____________- the nuclear envelope dissolves, DNA condenses.
____________- chromosomes line up along the center of the cell, pulled into place by centrosomes.
____________- chromatids are pulled apart towards centrosomes.
____________- nuclear envelope forms, DNA becomes chromatin.
____________- NOT part of Mitosis, division of the rest of the cell that takes place immediately after telophase.
Cancer
Cells normally only divide to produce _______ or _____, to _______, or to ________.
Cancerous cells continue in the cell cycle when they shouldn't due to damage to ______.
Meiosis
Meiosis is the process by which __________ (sex cells - sperm or egg) are produced.
Meiosis contains the same steps as mitosis, but they occur twice and have important differences.
Since division happens twice, you end up with ______ the DNA at the end.
Miosis vs Meiosis
Mitosis
Meiosis
Starts and ends with a________ (paired) number of chromosomes (humans have 23 pairs of chromosomes, 46 total)
Occurs in____________ for repair or growth.
___________ form of reproduction, producing identical cells.
Starts with a _______ number of chromosomes and ends with a _______ (half, one of each pair) number of chromosomes. Each half from a parent combines to the total.
Occurs in ________________________.
_________ reproduction, creating unique offspring.
Answer:
cells divide for many reasons. For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. Organisms grow because cells are dividing to produce more and more cells
Explanation:
that's all I can answer but hope this helps a little have a good night :)
A rabbit population is affected by parasitism and disease, both of which are density-dependent limiting factors. Which statement describes the effects of
parasitism and disease on the rabbits?
O A. Parasites and disease weaken or kill a constant percentage of the rabbit population, regardless of its density.
o B. As the density of the rabbit population increases, parasites and disease weaken or kill a greater percentage of rabbits.
O
C. As the density of the rabbit population increases, parasites and disease weaken or kill a lesser percentage of rabbits.
o
D. Parasites and disease weaken or kill mostly the youngest and oldest rabbits, and not the rabbits of average age.
Answer:
The correct answer is - As the density of the rabbit population increases, parasites and disease weaken or kill a greater percentage of rabbits
Explanation:
Disease and parasitism are types of density-dependent limiting factors that affected or influenced by the change in the population density, In this case, parasitism and disease affect the population of the rabbits.
If the density of the rabbit population increases the both density depending on the limiting factors parasites and disease weaken or ill a greater numbers of rabbit population.
anyone know the answer???
Answer:
The first one
Explanation:
Quantitative data is data in the form of numbers
Answer: The first option
Explanation: Quantitative data means data that is able to be measured or counted. The first option has 740, which can be counted. The second option is wrong because saying a lake is large is an opinion, meaning it isn't measured. The third option is also an opinion. The last option is also wrong since characteristics such as features or the appearance of something is not quantitative, instead they are qualitative features.
Quantitative data requires something to be measure or counted
Qualitative data requires observations, such as color or appearance
Volcanic eruptions occur when magma rises upwards through ___ to reach the ____
Volcanoes eruption when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts.
When Melting takes place?Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another. Volcanoes are the large volcanic buildings with long, and generally the conical shape, usually with a small crater on the summit and the steep flanks, that constructed by the interleaving of lava flows and the pyroclastic products emitted by one or more conduits.
Compound volcanoes are present in all regions of the volcanism, but it has in the plate convergence zones, where the tectonic plate subdows plunges toward the earth's mantle beneath another tectonic plate, that these volcanic buildings are the most abundant.
The magmatic expression of a converging plate margin environment is usually a series of sub-regularly spaced Compound Volcanoes, forming a sub-parallel volcanic arch to the tectonic fossa.
Therefore, Volcanic eruption when molten rock called magma rises to the surface.
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What two parts of a nucleotide do not ?change throughout the structure of DNA a. Five-Carbon Sugar and Phosphate Group b. Five-Carbon Sugar and Nitrogen Base c. All components remain the same ?throughout the DNA structure d. Phosphate Group and Nitrogen Base
Answer:
a. Five-Carbon Sugar and Phosphate
Explanation:
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
How does natural selection explain why some organisms are more likely to survive and reproduce than other organisms?
A. Some organisms inherit traits enabling them to adapt better to the environment.
B. Some organisms acquire traits during their lifetimes that they pass to their offspring.
C. Some organisms do not reproduce as many offspring during their lifetimes.
D. Some organisms die before they reproduce any offspring.
Any heritable characteristic that aids an organism in surviving and reproducing in its environment is referred to as an adaptation. Some organisms are more likely to survive and reproduce than others as some of them inherit traits enabling them to adapt better to the environment.
Why do organisms adapt?To live, all species must adapt to their surroundings. This entails adjusting to survive the ecosystem's climatic conditions, predators, and other species seeking the same food and space.
Organisms with heritable features which enable them to better adapt to their environment relative to other members of their species will be more likely to live, reproduce, and pass on more of their genes to the next generation the theory of evolution by natural selection.
Thus, the correct option is A.
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How do the hypotheses of ""phyletic gradualism"" and ""punctuated balance"" explain the process of lineage diversification?
Answer and Explanation:
Phyletic gradualism and punctuated balance are speciation theory. They are effective models for understanding macroevolution. Both define the rates of speciation. The phyletic gradualism model theorizes that most speciation is gradual, slow, and uniform, such as a black and yellow butterfly. When a butterfly is born, its color is yellow and orange, making it hard to see. The black and yellow butterflies become extinct over a long period, while yellow and orange butterflies can survive due to less visibility to predators. Punctuated balance suggests that once a species seems in the fossil record, the population will become steady and indicate little evolutionary modification, such as a species of birds live in stasis for numerous years. Suddenly bacteria affect their prime tree of shielding to die. The birds must adopt the changes. Some birds survive, and the remaining birds die. Until the others die out, more birds are born. Then the species again returns to a stasis state. The Gradualism model shows evolution as a slow, steady process in which organisms develop and change slowly over time, while punctuated balance models show evolution as a long period of evolutionary change. Due to the mechanisms of evolution in a time frame, both models describe successive evolutionary alterations.
What do these three objects have in common?
Blind - Expiry - Due
Answer:
Explanation:
their all words
These objects such as the blind, expiration, and due represent the terms used in finance and represent the time period till which they represent
The blind is a bookkeeping system and it does not consist of any additional information regarding the source. The expirer is a time period or the validity to when the product or the item has to expire or will work. The Due is the due date of submission or return of the amount etc. Hence they are related to time.Learn more about the objects has in common.
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Bill and Jenny have three children. One of their children has cystic fibrosis, which is a recessive disorder (cc). Neither of the parents has the disorder. PLEASE EXPLAIN EVERYTHING THEY ARE ASKING NEED 100%
Part A: Explain how it is genetically possible that one of their children has cystic fibrosis. (3 points)
Part B: What are the odds that each child produced by Bill and Jenny could have cystic fibrosis? (1 point)
Answer:
Part A: It is possible that one of their children has cystic fibrosis because although neither of the parents has the disorder, both of them could still be carriers.
Part B: There is a 25% chance that one of their children has cystic fibrosis.
Explanation:
Part B: Draw a Punnett square to confirm. Cross Cc and Cc. You should get CC, Cc, Cc, and cc.
What is an example of "maintaining structure"?
Question 8 options:
a cell dividing
eating an apple
catching a fish
healing a broken arm
a cell dividing
----------------
Answer:
It is heeling a broken arm.
Explanation:
A fish in a pond has longer protective spines than any other fish of its species. The spines keep the fish safe from predators. The fish has many offspring, which also have long spines. Which statement BEST describes what happened? A A mutation caused a beneficial change in the fish. B A mutation caused a harmful change in the fish. C Shorter spines caused a genetic change in the fish. D Longer spines caused a genetic change in the fish.
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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What is the purpose of a cell?
they provided structure for the body taking nutrients from food convert those nutrients into energy and Carry Out specialized functions.
Identify the three main environmental problems.
Answer:
3 main enviornmental problems are pollution, climate change, and deforestation
Explanation:
Answer:
pollution and global warming and climate change
Explanation:
because it's bad for the animals if they eat the trash they will die. human activities have made global warming and climate change a global threat. the rising level of 02 and other greenhouse gases have caused an increases in average global temperatures , extreme weather events and rising sea levels and other negative changes
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About 3/4 of the matter that makes up the universe is the element _______________, while the remaining 1/4 is mostly the element _______________.
Is this correct I NEED A SOLID ANSWER CORRECTLY (FOR BRAINLIEST)
Answer:
Yes it is right.
Explanation:
The reason why is because you did rise over run correctly, absoultey correct. You followed his instructions, went to the coordidinate 0,-4, then used rise over run and moved up three and over one and got to your awsner.
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In which element does an aquatic plant grow in?
Answer:
IRON (FE) As well as enough CO2, aquatic plants need iron and trace elements to survive. Vigorously growing aquatic plants are constantly consuming iron and other trace elements.
Explanation:
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Which TWO factors most likely increase and decrease along with human population growth?
O A. education
O B. resource consumption
C. recycling of materials
O D. technological advancements
E. converting land for agricultural use
B. Resource consumption and E. converting land for agricultural use are likely to increase along with human population growth, as more people require more resources and food, which often leads to the conversion of more land for agricultural purposes.
What is population growth?Human population growth refers to the increase in the number of individuals in a population over time. As the population grows, there is an increased demand for resources and food, which often leads to the conversion of more land for agricultural purposes and an increase in resource consumption.
Technological advancements may help to increase resource efficiency and reduce environmental impact, but the overall effect on resource consumption is uncertain. Education can play a role in managing population growth and its impact on the environment by promoting sustainable practices and family planning.
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