Answer:
Genetic variation means that a specific gene has various alleles. ... Genetic variation makes it possible for a species to exhibit various traits related to that specific gene. Having a variety of traits can help species adapt to different environmental conditions over time.
Explanation:
Genetic variation is the presence of differences in sequences of genes between individual organisms of a species.
It enables natural selection, one of the primary forces driving the evolution of life.What is genetic variation?Genetic variation is a term used to describe there variation in the DNA sequence in each of the genomes.Genetic variation is the result of the alleles of genes.Genetic variation is important in evolution.To know more about genetics here
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John was told by his physician that he was vitamin D blood levels were low. John needs to eat foods that are rich in
Answer:
Vitamin-D in the blank.
Explanation:
If you think you may have a deficiency, it's important that you speak to your doctor and get your blood levels measured. Fortunately, a vitamin D deficiency is usually easy to fix. You can either increase your sun exposure, eat more vitamin-D-rich foods, such as fatty fish or fortified dairy products.
Body cells are all I need help
Original DNA Sequence:
TACACCTTGGC GACGACT
mRNA Sequence:
Amino Acid Sequence:
Explanation:
ATGTGGAACCG CTGCTGA
UTGTGGUUCCG CTGCTGU
Use the context of the urinary system to explain the term osmoregulation
Answer:Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.
Explanation:
Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.
Please Answer 6 7 8 9 10 Pleaseeeee
Answer:
hey what if you dont know it
Explanation:
AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.
a. True
b.False
Answer:
a. True
Explanation:
AZT is an abbreviation for azidothymidine and it is the first effective drug against the human immunodeficiency virus (HIV). Thus, azidothymidine is considered to be the first anti-retroviral drug used for the prevention and treatment of the human immunodeficiency virus (HIV).
AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.
Basically, the shape and composition of the reverse transcriptase plays a significant role in the interaction. Therefore, this anti-retroviral drug known as AZT may not work effectively if the shape and composition of the reverse transcriptase changes.
Furthermore, the high mutation or replication rate of the human immunodeficiency virus (HIV) owing to its enormous genetic diversity has made it extremely difficult to develop an effective and accurate vaccine against the virus.
Hence, the human immunodeficiency virus (HIV) possesses a high error rate.
Please help asap with 18
Explain the relationship between the number of whales, the number of plankton (Biomass), and the amount of CO2 (Carbon Dioxide) in the atmosphere.
Answer:
Plankton are producers therefore they use the CO2 in the atmosphere and convert it to oxygen. Whales eat the plankton while sometimes using the oxygen that the plankton produces. In this situation, the whale is a primary consumer, or a heterotroph, as the plankton is the producer, or autotroph. Hope this helped :D
Fill in the blank:-
▪︎Handpicking is used to separate larger size impurities from _________.
Define:-
1. Threshing
2. Winnowing
3. Sieving
Write in your words
Explanation:
Threshing- The process of separating grains from the harvested crop is called threshing.
winnowing-The grain is separated from the chaff with the help of wind is called winnowing.
Sieving- Sieving is a simple technique for separating particles of different size.
If Tom Harris had type AB blood and Mary had type O, could the type O child they brought home be their child? * No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B. Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominate to O. Yes; the baby inherited type O blood from the mother Mary Harris which is dominant to the genes for both A and B.
Explanation:
No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B.
The study of blood is called hematology. The component of blood is RBC, WBC, platelets, and plasma.
The correct answer to the question is option B.
What is a blood group?A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.The genes A and B are dominant over O therefore the O blood group can not be seen in offspring.
Hence, the correct answer to the question is option B is Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominant to O.
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I need help because it’s not easy
PLEASE HELP :( Match the vocabulary from this section with its example.
Answer:
3 community
4 population
5 ecosystem
2 abiotic
1 biotic
10
In the Rolling Plains ecoregion of Texas, some parts of rivers are in deep canyons and others have bottoms that are close to the level of
the surrounding land. What conditions are most likely to be found in a place where a canyon has formed?
OA.
fast-moving water and rock that is highly resistant to erosion
OB. slow-moving water and rock that is highly resistant to erosion
Oc. slow-moving water and rock that is easily eroded
OD. fast-moving water and rock that is easily eroded
Answer:
D
Explanation: its the most theorital and logical reason.
the oxygen of air diffuses out from
Answer:
From higher concentration to lower.
Explanation:
The oxygen diffuses out from a region of higher concentration to the region of lower concentration because of diffusion. The air contain high amount of oxygen and human body has low oxygen level so the oxygen moves from the air to the lungs of the human body from there oxygen is loaded in the hemoglobin while on the other hand, carbondioxide is removed from the blood into the lungs which goes outside the body through breathing.
A young woman, who was adopted at birth, comes into your office asking you to help her identify her birth father. She already knows that the blood type of her birth mother is A positive. She knows her birth father is one of three men who are willing to help in her search. Your first step is to do a blood test on the daughter. Your results show that she is type AB negative. You make some phone calls and have the three possible fathers come in to give a blood sample. Here are the results:
Man #1 – O negative
Man #2 – B negative
Man #3 – AB positive
From this information, can you conclude who the father is? Is there anyone you can exclude? What tests could you do further to confirm your analysis about who the father is?
Answer:
Man no.3
Explanation: Mother A positive and daughter AB negative means that the dad would be AB positive.
7. How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that
support your argument. HELP
Which is the SI symbol for volume?
X m
g
L
к
Answer:
L
Explanation:
Which statement describes a disruption that can occur in the cell cycle, leading to the development of
cancer?
A. A virus interferes with checkpoints within the cell cycle, resulting in slower cell proliferation.
B. A virus interferes with checkpoints within the cell cycle, resulting in uncontrolled cell apoptosis.
c. A gene mutation interferes with cell cycle control mechanisms, resulting in uncontrolled cell
proliferation.
D. A gene mutation interferes with cell cycle control mechanisms, resulting in an increased rate of cell
apoptosis.
Answer:
The correct answer is - option C. A gene mutation interferes with cell cycle control mechanisms, resulting in uncontrolled cell proliferation.
Explanation:
Genetic mutations resulting in the change or absence of any regulatory proteins that used during checkpoints can result in the mechanism of turning on or turning off the cell cycle or allow a cell to move further for the division. Due to this change, the checkpoints are not able to prevent it from division.
Uncontrolled multiplication or proliferation of the cell, resulting in tumor development or cancer.
What is an example of a eukaryotic cell?
Explanation:
Plant cell
Is the best example of a eukaryotic
[tex] \bf Eukaryotic \: cells : - [/tex]
They are complex and larger than the prokaryotic cells its name is drived from a Greek word meaning 'good' or 'true nuclei' they consist of the cell wall which protects and supports the plasma membrane these cells are found in all organisms except bacteria and blue green algae for example plant animal fungi etc all are eukaryotes. Amoeba is a eukaryote because it has a distinct nucleus which is bound by nuclear membrane.
Additional information :-Cell :- Smallest structural and functional unit of a living organisms.
Unicellular organisms :- The organisms made up of one cell only.
Multicellular organisms :- The organisms made up of two or more cells.
Cell wall :- The covering of cellulose outside plasma membrane also called plasma membrane.
Centriole :- The cell organelle that helps in cell division found only in animal cell.
Chloroplast :- The photosynthetic originals found in a plant cell green in colour due to the presence of chlorophyll.
Tissue :- A group of cells having the same structure performing the same function.
Nucleus :- The control centre of the cell
Bloom syndrome is an autosomal recessive disease that exhibits haploinsufficiency. A recent survey showed that people heterozygous for mutations at the BLM locus are at increased risk of colon cancer. Suppose you are a genetic counselor. A young woman is referred to you whose mother has Bloom syndrome; the young woman's father has no family history of Bloom syndrome. The young woman asks whether she is likely to experience any other health problems associated with her family history of Bloom syndrome. What advice would you give her?
Answer:
The correct answer is - she is heterozygous for a mutated BLM allele and will have an increased risk of colon cancer.
Explanation:
Autosomal recessive disease expresses itself in next-generation only if there is both alleles are recessive for the gene. In haploinsufficiency, the dominant allele fails to express itself in the phenotype due to insufficiency. So, if even one allele of the recessive gene present in the haploinsufficiency case, it will affect and express its trait.
She is heterozygous for a blood syndrome, as her mother had but her father has no disease, allele and will have an increased risk of colon cancer.
Give brainlist to the best answer
Answer: The answer is 'it provides spores for reproduction'
Explanation:
Which cell carries oxygen though out the body?
Answer:
Blood cells are the cells that carry oxygen
blood cells dont only carry Oxygen, blood cells also carry water, minerals, nutrients, and proteins throughout the different parts of the human body
Explanation:
hope this helps :)
PLS HELP ME ON THIS ONE TOO!!!:))
Answer:
it is c on 1 D on 4 A on 2 and Bon 3
Which of the following best describes a difference between a mutualistic relationship and a parasitic relationship? A. Parasitism harms both organisms, while mutualism harms only one organism. B. Parasitism benefits only one organism, while mutualism benefits both organisms. C. Parasitism involves only two organisms, while mutualism involves many organisms. D. Parasitism continues for many generations, while mutualism is limited to one generation.
Answer:A. Parasitism harms both organisms, while mutualism harms only one organism. B. Parasitism benefits only one organism, while mutualism benefits both organisms.
Explanation:i hope this helps
How do you think the systems on Earth work together to create what we see on Earth?
Answer:
The five systems of Earth (geosphere, biosphere, cryosphere, hydrosphere, and atmosphere) interact to produce the environments we are familiar with.
divide the planet into two main components: the biosphere, which consists of all life, and the geosphere. Because these subsystems interact with each other and the biosphere, they work together to influence the climate, trigger geological processes, and affect life all over the Earth
Explanation:
Which type of pollution is caused by the use of excess nutrients and pesticides?
Water
Soil
Air
Crop
Answer:
Water
Explanation:
This is called Eutrophication. This happens when extra nutrients seep into water causing algae and other organisms to grow.
Brainliest?
Watch this video about how cell division works. Then use what you’ve learned to answer the following questions. Part A Cell division is the process of forming new cells from existing cells. Based on the video, explain why cell division is important for the growth of a new baby.
Answer:
Gunpowder was developed in Postclassil
Explanation:
Answer: Cell division allows for cells to continue to grow and divide. this is important for the growth of a new baby because the baby needs cells in order to grow. as cells replicate, grow, and divide, the baby is able to grow.
Which of the following are true statements about ozone holes? (Select the three best
answers.)
A.Ozone holes don't have any ozone in them.
B. Ozone holes allow ultraviolet light to reach the Earth's surface.
C. Chlorofluorocarbons make an ozone hole larger.
D. Ozone holes have more ozone than usual.
E. Ozone holes can be hole-shaped.
F. There is always just one ozone hole in the Earth's atmosphere.
Answer:
Ozone holes have more ozone than usual.
Correct Answer
Ozone holes allow ultraviolet light to reach the Earth's surface.
Ozone holes don't have any ozone in them.
Chlorofluorocarbons make an ozone hole larger.
Explanation:
Ozone has been the atmospheric layer that protects the earth. It allows the ultraviolet rays to enter the earth, and there is one ozone hole due to the Chlorofluorocarbons. Thus, options B, C, and F are correct.
What is an ozone hole?An ozone layer is defined by the presence of the ozone gas that is present in the atmosphere of the earth. The ozone hole is the hole in the ozone layer that is due to the depletion of the ozone gas in the layer due to increased global warming and pollution.
The increased concentration of Chlorofluorocarbons (CFCs) generated from aerosols, air conditioners, and refrigerants have resulted in a hole in the ozone layer. This lead to increased exposure of the organism to the harmful UV radiations emitted from the sun.
Also, this has resulted in increased climatic changes because of the global warming and heating of the atmosphere due to the entrapment of the UV and Sun rays. This leads to various diseases including cancer and eye irritation.
Therefore, the ozone hole is due to increased Chlorofluorocarbons. options B, C, and F are correct.
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Which type of echinoderm lacks tube feet that are used for movement?
O sea star
O brittle star
O sea urchin
O sea cucumber
Answer: B. brittle star
Explanation:
Which statement describes the relationship between the deer and plants on the food web? (3 points) Tree is consumed by insect, which is consumed by the frog and lizard. The frog and lizard is consumed by the snake and the snake is consumed by the hawk. The mayfly is consumed by the fish and the fish is consumed by the bear. The plants are consumed by the deer and bear. The deer is consumed by the wolf. Group of answer choices Heterotrophs supply food for the autotrophs. Autotrophs and heterotrophs share the same food source. Autotrophs supply food for the heterotrophs. Autotrophs and heterotrophs compete for the same food source.
Answer is B - Autotrophs supply food for the heterotrophs.
A flower would be a type of autotroph and the deer would be a type of heterotroph. It would only make sense if it was B.
Also I took this test already on Canvas, and got it correct.