Answer:
Statements thar are true:
Some organisms have phenotypes that make them better increase chances of reproduction.
Natural selection continues to occur even today
Phenotypes found In the most successful members of a species become the most prevalent after several generations.
Explanation:
It is not true that all organisms must compete for survival, sometimes the conditions are good and there is enough food or good climate conditions and that makes no need of competition an increase in the individuals of the species.
Animals undergo natural selection, this is a random natural phenomenon that can make plants and animals adapt better or worse to the enviromental conditions. This cause that the beneficiaries can adapt, survive and reproduce and became the most prevalent after generations.
Mutations are not phenomen that occur because the living being needs it, but rather they are phenomenon that occur at random at any time and determine the possibility of survival.
A decrease in food availability will do the contrary, decrease the variation in a population because it makes that only those who manage to adapt to eat another food survive, for example.
Answer:
A C E F
thats that ones
Big brown bats have 50 chromosomes in their skin cells. How many chromosomes are in one of their sperm or egg cells?
Answer:
46
Explanation:
The star in the diagram represents which of these? A. origin of replication B. replication fork C. replication bubble D. Okazaki fragment
Given what we know about the process of DNA replication, we can confirm that the star shown in the diagram represents the replication fork.
During the replication of DNA in the cellular process of multiplication, a structure known as the replication fork is formed. This fork is a structure that forms by helicases, which tear the hydrogen bonds that hold together two DNA strands in the form of a double helix.
The resulting structure contains two prongs, which are branches of the original DNA strand which are no longer doble or in the form of a helix. This area where the strands are separating into prongs is the replication fork which is being marked in the diagram by the star.
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Would you expect the cells from the root of a plant to be the same is structure and function as cells from a leaf
please help don't guess.. I have a d in biology and I'm trying to get a better grade. my parents keep hassling me about it please help
These are standards that determine a scientists behavior, right or wrong.
Answer:
right beacuse
Explanation:
The cuticle which covers crustacean bodies is composed of
Of what is the head of T- phage made?
A) only protein
B) only DNA
C) Protein and DNA
D) None of above
Answer:
....( c) protein and DNA
How does pollution contribute to global warming?
O lt changes the direction of major currents.
O It forms a barrier that keeps in the sun's heat.
O It makes it harder for the sun's rays to reach Earth.
O It makes it more difficult for sea life to survive in the ocean.
Pollution contribute to global warming by (B). It forms a barrier that keeps in the sun's heat.
Meaning of Global WarmingGlobal warming can be defined as the process by which the earth surface is heated and its temperature is raised up leading to a climate change that affects all the inhabitants of the earth.
In conclusion, Global warming has done more harm than good and in recent times it has really led to a variation in climates
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What do all living things have in common?
All have cells with a nucleus.
All have a genetic code.
All are made of two or more cells.
All can perform photosynthesis.
Answer:
All are made up of two or more cells
What term describes the total mass of trees, shrubs, herbaceous plants, and grasses present in a given forest on a given day
The term best describes the mass of the above-ground vegetation in a given forest would be the standing crop.
The standing crop of a forest specifically refers to the mass of all the living plant materials present in the forest at a particular time ranging from the biggest of trees, shrubs, herbs, to the tiniest of grasses.
Standing crop is as opposed to biomass in that the latter refers to the total mass of organic materials from the living and dead plants derivable from the forest.
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Which bacteria are useful in converting milk into curd?
(A) Azotobacter
(B) E. Coli
(C) Lactobacilli
(D) Pseundomonas
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The correct Choice is ~ C
Lactobacillus bacteria are useful in converting milk into curd ~
Answer: (C) Lactobacilli
Brainliest pls if correct!How to define mental illness or psychopathology ?
Giving away 15 points
Answer:
mental illness is a disease or illness that affects the way you think process and act this can make everyday life and everyday things difficult to do.
Psychopathology is basically the study of mental disorders for example the study would be relating to their causes, the development, course, classification, and treatment.
Explanation:
list the steps of reasoning that Darwin gave to explain the process of natural selection
Answer:
variation,inheritance,high rate of populations growth,differential survival and reproduction
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please help me last question!
Answer:
statement A is correct.... the glucose product in the photosynthesis is the substrate for respiration
what is the complementary DNA strands and plz write it the same way as the image.
Answer:
AAT-TTG-CTC-GAC-GAT
Explanation:
The complimentary strand contains the bases that the parent original strand binds to.
What chemical compounds are in a sunflower?
Answer: The major components of the sunflower seed hull, lipids, proteins and carbohydrates.
Explanation: The major components of the sunflower seed hull, lipids, proteins and carbohydrates were studied Lipids represent 5.17% of the total hull weights, 2.96% of which is wax composed of long chain fatty acids (C14–C28, mainly C20) and fatty alcohols (C12–C30, mainly C22, C24, C26).
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I need help question 15
Answer:
Perpendicular
Explanation:
The lines for both equations intersect.
Answer:
perpendicular
Explanation:
-2x+6y=3 ------> y=1/3x+13
It is flipped and as opposite sign.
what is the main reason scientist do experiments?
A) to find out if a hypothesis is correct
B) to provide jobs for scientists
C) to find different ways to use lab equipment
D) to educate science students
The weathering of rock caused by salt is
B
Explanation:
It occurs when water dissolved with salts seeps into the cracks of a rock. When the water slowly evaporates it leaves behind crystals of salts. When the rock is heated, the salts also expand and create pressure within the cracks, widening them and causing the rock to split.
Explanation:
17
Select the correct answer from each drop-down menu.
Fats are an important dietary requirement that play a number of roles in the body. Fats transport fat-soluble vitamins in the body, such as blank
. The body can't synthesize blank
and must obtain it through dietary intake.
Answer:
Fats are an important dietary requirement that play a number of roles in the body. Fats transport fat-soluble vitamins in the body, such as vitamins A,D,E,K
. The body can't synthesize essential fatty acids
and must obtain it through dietary intake.
Answer:
vitamen d then omega 3 fatty acids
Explanation:
i got it right
Why is the element carbon so versatile?
Answer:
C.
Explanation: can form many different types of structures and it's stable
Explanation:
C ...................
How is the small intestine adapted to its function?
Answer:
The enzymes in the small intestine, help break the food up into smaller particles. Those tiny particles are then absorbed through the thin lining of the intestine into the bloodstream and are carried all where they are needed in the body. Therefore making it adapted to it's function, which is breaking down food including carbohdrates, fats and proteins :>
Explanation:
(*winks and runs of*)
I need help with dis one too plz!!!question 5
Explanation:
4) option D
5) option A
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Aldosterone ____________ ion exchange at the distal convoluted tubule. This helps to regulate the reabsorption of sodium and water
Aldosterone, the main mineralocorticoid steroid hormone ion exchange at the distal convoluted tubule.
This helps to regulate the reabsorption of sodium and water.
Discussion;
To prevent osmolarity from decreasing below normal, the kidneys also have a regulated mechanism for reabsorbing sodium in the distal nephron.
The mechanism in discuss is controlled by aldosterone, a steroid hormone produced by the adrenal cortex.
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Mutations may be caused by A. errors in replication B. exposure to radiation C. breakage of chromosomes D. All answer choices are correct
Answer: D all answer choices are correct
pls I need answers ASAP,thank you
1)What are some examples of specialized cells
and what do they do?
2) Why is the specialization of cells in organisms
significant and important for homeostasis?
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help me in my homework please
what are some drawbacks to using mice in genetic studies?
Answer:
One drawback to using transgenic, knock-in, and knock-out mice to study human diseases is that many disorders occur late in life, and when genes are altered to model such diseases, the mutations can profoundly affect development and cause early death.
hope this helps
Explanation:
Genetically altered mice have served to recapitulate human diseases, including cancer, glaucoma, heart disease, and diabetes. However, despite their genetic similarity to humans, mouse models are criticized for their failure to accurately mimic human disease phenotypes.
Why it's bad to use mice as an experiment:
The use of mice as model organisms to study human biology is predicated on the genetic and physiological similarities between the species. Mice are less reliable as models of human disease, however, because the networks linking genes to disease are likely to differ between the two species.
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What is the function of a plasma membrane that all living cell depends on
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
can some one help me with this please
Answer:
1 answer is B
2 answer is c
3 answer is a
Explanation: hope this helps if it not right pls tell me