Answer:
Explanation:
This is because the main firm of defect in patients with AIDS is destruction of helper T cells,and the T lymphocytes cells main function is to recognize antigen in the infected hosts and kill the antigens thereby activating the cell-mediated response and boost the immune cells . This immunodeficiency makes the patient to be more prone to infections and unusual cancers
Suppose that millions of years from now Australia moves to South America. Would Australia still have the same kinds of mammals? Explain your answer.
Answer:
Which best explains why Australia has life forms that do not exist anywhere else on Earth? Australia was separated from the other landmasses by geological forces. Scientists think that dolphins and whales may have evolved from a common ancestor.
Assuming that millions of years from now Australia moves to South America. Australia would not have the same types of mammals, because with the junction of the continents new conditions would suggest for animals to evolve.
What was the evolution of continents?Continental Drift is a theory that claims that, at one time, all the present-day continents formed just a single landmass, called Pangea. This supercontinent, thanks to the movement of the Tectonic Plates, fragmented several times until it provided the current shape of the land masses.
With this information, we can conclude that millions of years from now Australia will move to South America. Australia would not have the same types of mammals, as with the joining of the continents new conditions would suggest the evolution of animals.
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What is the function of the structure identified by the red arrow? (4 points)
The image shows bacteria with thick cell walls. The red arrow points to these cell walls.
© 2011 FLVS
Food capture
Mobility
DNA transfer
Protection
Answer:
The cell wall provides protection/strength and structure to the cell
Answer:
Protection
Explanation:
WILL MARL BRAINLIEST IF ANSWERED CORRECTLY. PLEASE HELP!!!!! Which statement describes the differences van Neil discovered between how
purple sulfur bacteria perform photosynthesis and how other organisms
perform photosynthesis?
A. Purple sulfur bacteria use sulfur instead of water, do not require
light, and release hydrogen sulfide.
B. Purple sulfur bacteria use hydrogen sulfide instead of water, do
not produce oxygen, and release sulfur.
C. Purple sulfur bacteria use sulfur instead of water, do not produce
oxygen, and release hydrogen sulfide.
D. Purple sulfur bacteria use hydrogen sulfide instead of water, do
not require light, and release sulfur.
Answer:C
Explanation:
i took the test
Why is Gene Therapy considered an effective (helpful) method to treat genetic disorders?
A) It enables a diseased cell to self-correct and fix its own defective (non-working
gene
B) It increases the likelihood (chance) of passing genetic mutations to offspring
C) It replicates resistance genes in the cells of unhealthy individuals
D) It replaces a defective gene with a healthy gene
Answer:
D) It replaces a defective gene with a healthy gene
Explanation:
Gene therapy is the process of replacing defective genes with healthy ... genes to help the body fight or treat disease, or deactivating problem genes.
Which statement is true of x chromosomes?
O A. Women have two of them.
O B. Only men have them.
C. Half of the babies born do not have them.
O D. Thaly women have them.
A
Explanation:
i think i got this one right
HELP!!! 50PTS!!!!!!
Recent research investigating variation in human height has found that a variety of genes at different loci, as well as early nutrition, influence height, especially the nutrition of a mother during gestation (the period of time during development of a fetus) and of a child during childhood years,. Given this information, which of the following is correct? (3 points)
For human height, the environment is more influential than inheritance of particular alleles.
One phenotypic trait is usually related to one gene.
Phenotypes are directly linked to genotypes and not influenced externally.
Phenotypes are usually the result of a combination of genes and influence of the environment. I think is D
Answer:
It's the fourth one:
Phenotypes are usually the result of a combination of genes and influence of the environment.
Explanation:
Genes and the environment both affect phenotype.
Phenotypes are usually the result of a combination of genes and the influence of the environment.
What is genes?
In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.
During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. These genes make up different DNA sequences called genotypes. Genotypes along with environmental and developmental factors determine what the phenotypes will be. Most biological traits are under the influence of polygenes (many different genes) as well as gene–environment interactions. Some genetic traits are instantly visible, such as eye color or the number of limbs, and some are not, such as blood type, the risk for specific diseases, or the thousands of basic biochemical processes that constitute life.
Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotypical traits. Usage of the term "having a gene" (e.g., "good genes," "hair color gene") typically refers to containing a different allele of the same, shared gene.Genes evolve due to natural selection / survival of the fittest and genetic drift of the alleles.
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the difference between mitosis and meiosis
Hope this above pictures may helps you.
What is the difference between the trachea and the esophagus?
The trachea is part of the
please help! will give brainlist!
how can you call something “alive“? All living things share certain characteristics.
Part A: List the nine characteristics of life
Part B: choose three of the characteristics of life. Give an example of each that describes how that characteristic contributes to the organism survival.
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life
Explanation:
what came first the egg or the chicken cause if the chicken came first how did the chicken get there same with the egg how did the egg get made im so confused i need answers
Answer: My theory was that they both were created at the same time. So if they both were created at the same time, then I guess that would solve this whole infinite loop thing. If the chicken came first, then it had to have come from an egg. So that means if the egg came first, where did that egg come from? A chicken. So its just a whole infinite loop. So thats what I think.
Explanation: Hope this spiked your interest.
Antibodies are found in the blood plasma.
True
False
Answer:
True
Explanation:
Blood plasma contains antibodies, a type of protein that can fight a substance considered foreign to the host body. The body manufactures antibodies to correspond to naturally occurring antigens inherited through DNA. Foreign antigens occasionally introduced by way of pregnancy or blood transfusions will also cause the body to make antibodies.
Hey There!
Can you please help me with one question?
➠Who was Rosalind Franklin?
Please don't answer irrelevantly unless you wants to get reported or your account suspension.
Thanks
Answer:
Rosalind Franklin was a British chemist (1920 - 1958). She was best known for her contributions to the discovery of the molecular structure of deoxyribonucleic acid (DNA), a constituent of chromosomes that serves to encode genetic information.
Answer:
Rosalind Franklin was an English chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA, RNA, viruses, coal, and graphite
The sum of the angles triangle are 180 degrees Use that to find the m
The value of angle DBA is 120
which drug is a depressant?
a) nicotine
b)alcohol
c)caffeine
d)antibiotic
1. For a mutation to affect evolution, it must:
a. Provide a benefit to the organism
b. Involve more than one chromosome
c. Be able to get passed from parent or offspring
d. Be neutral—neither help nor harm the organism
For a mutation to affect evolution, it must provide a benefit to the organism. Hence option A is correct.
In order for a mutation to have an effect on an organism’s progeny, it must: occur in the next generation’s cells and affect the inherited material, impact the environment, and generate diversity among species.
They result in novel proteins that allow organisms to adapt to environmental changes. Mutations that are beneficial are necessary for evolution to take place. Mutations that enhance an organism’s ability to survive or reproduce are likely to increase in frequency over time.
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What must a phenylketonuria patient leave out of his or her diet?
A. a specific amino acid
B. all carbohydrates
C. all amino acids
D. some specific carbohydrates
Answer:
C
Explanation:
got it right in test.
Which do solar flares and coronal mass ejections have in common? Select the two correct responses.
A. They appear as dark spots on the sun's surface.
B. They tend to occur during minimum points in the solar cycle.
C. They are caused by the sun's changing magnetic field.
D. They are explosive events that can affect Earth.
C. They are caused by the sun's changing magnetic field.
D. They are explosive events that can affect Earth.
Explanation:
I'm sorry if it is wrong but I am almost 100% that it is correct!
Have a good one!
The solar flares and coronal mass ejections are caused by the sun's changing magnetic field. Also they are explosive events that can affect Earth. The correct options are C and D.
What is solar flare?A solar flare is a massive explosion on the Sun caused by the sudden release of energy stored in 'twisted' magnetic fields.
However, not all solar flares are safe. While the Earth's magnetic field protects us from solar radiation, the sheer electromagnetic power of a flare disrupts power grids, internet connections, and other communication devices.
Ejections occur at varying rates depending on the phase of the solar cycle, ranging from about 0.2 per day near the solar minimum to 3.5 per day near the solar maximum.
Coronal Mass Ejections are large plasma and magnetic field expulsions from the Sun's corona.
The sun's changing magnetic field causes solar flares and coronal mass ejections. They are also explosive events that can have an impact on Earth.
Thus, the correct options are C and D as per the given scenario.
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Which statements describe the characteristics of an individual protein? Select two options.
It is specific to one biochemical reaction.
It increases the activation energy needed for a reaction.
It can catalyze many different reactions.
It increases the rate of a biochemical reaction.
It slows down the rate of a biochemical reaction.
Answer:
A, D
Explanation:
I just took the test on edge
Answer:
The answer to this car is A.)It is specific to one biochemical reaction, D.)It increases the rate of a biochemical reaction.
Explanation:
Hope this helps :) !!!!!!!!!!!!!!
help me plz im stuck
Answer:
ribosomes
Explanation:
spamofletters ifjdndndndkxk
I need help with this question, thankss
Answer:
The Moon moves around Earth until the Moon is between the Sun and Earth.
Explanation:
3. Si sales de tu casa y recorres 5 metros de distancia. ¿A qué distancia te
desplazaste?
Answer:
5 metros.
Explicación:
Si sale de su casa y camina 5 metros, significa que está a 5 metros de su casa porque cubre 5 metros de distancia. La distancia es la longitud que recorre un cuerpo entre dos puntos. Aquí un punto es la casa y el otro punto es la persona, por lo que si calculamos la longitud, encontramos que el individuo cubre 5 metros por lo que podemos concluir que el individuo está a 5 metros de su casa si camina 5 metros de su casa. casa al exterior.
Hurry before it is too late!!!! Hey I hear a train whistle like a tornado train whistle and my parents don't believe me. Should I just get into our tornado shelter (it is in the garage) or just wait. The power has not went off and there is a railroad track near us. Hurry ! Right choice is brainliest!!!!
Answer:
brainliest
Explanation:
....
Answer: Just trust the weather since power didn't go out yet.
PLEASE HELP I WILL GIBE BRAINALIST
Answer:
d , because the atoms gain or lose electrons
Explanation:
hope this helps!
What is the relationship between malaria and sickle cell anemia?
Answer:
it's believed that the current prevalence of malaria in endemic areas reflects selection for the carrier form of sickle cell trait through a survival advantage. Malaria has been incriminated as a great cause of mortality in people with sickle cell disease (SCD
In rats, black eyes (B) are dominant to red eyes (b). If a rat that is heterozygous for eye color
is crossed with a red-eyed rat, what will the phenotype ratio of their offspring be?
Answer:
Bb x bb
Genotypes: Bb, Bb, bb, bb
Phenotypes: 1:1
i need that answer quick pls thanks
Answer:
First answer
Explanation:
RNA contains Uracil instead of Thymine
Describe a problem in your life and an invention that would solve that problem.
Answer:
A problem in my life that I have is when I am cooking. When I need to cook something on the stove I use butter on the pan so it won't stick. But getting out that block of butter and trying to cut a perfect slice of butter is always such a freakin hassle. So, a squeezable butter or a butter slicer mechanism that can use would be fantastic.
Or, how about when I use peanut butter. When I use peanut butter for like a PB and J I try to scrape the excess peanut butter back into the jar and whatevers left in the jar but then whats left on the knife is such a pain to wash off. so like a really good scrubber to help wash off peanut butter would be cool.
Explanation:
I have so many life problems
Many discoveries and inventions are required for people's better health or living conditions, such as an inhaler for asthma patients, which helps and allows them to enjoy their lives, or the invention of devices such as computers, etc., which connect people all over the world.
What is the importance of inventions?In general, inventions have the potential to improve people's lives, solve problems, and make tasks easier or more efficient, such as the invention of digital platforms, robots, etc, that help humans in different ways. They can also contribute to the advancement of science and technology and drive economic growth and an invention can have a large impact on society and change people's lifestyles.
As a result, numerous discoveries and inventions are required for people's better health or living conditions, such as an inhaler for asthma patients, which helps and allows them to enjoy their lives, or the invention of devices such as computers, etc., which connect people all over the world.
Learn more about the importance of inventions here.
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Which organelle will you NOT find in an animal cell?
A.ribosome
B.vacuole
C.chloroplast
D.lysosome
Answer:
c
Explanation:
choloroplast because of heterotrophic
The theory that describes how earths outer layer is broken up into moving tectonic plates. It also explains how plates shape earths surface
How do the characteristics of an organism contribute to their survival?