Answer:
White blood cells are an important part of the immune system. HIV infects and destroys certain white blood cells called CD4+ cells. If too many CD4+ cells are destroyed, the body can no longer defend itself against infection. The last stage of HIV infection is AIDS (acquired immunodeficiency syndrome).
which prefix is correctly defined
A. mer- one
B. poly - many
C. mono - large
Answer:
The answer is letter B
Explanation:
Learned about this in class so i know that mono means one and poly means many
Answer:
B. poly - many
Explanation:
Poly means more than one in examples:
polygamy - the practice or custom of having more than one wife or husband at the same time.
polyamine - an organic compound having more than two amino groups
polyaxon - a nerve having several axons
I hope this is helpful :)
7. Robert Koch is credited with the discovery of Mycobacterium tuberculosis in 1876.
A. True
b. False
Answer:
falso
Explanation:
describe how the solar system was formed
Explanation:
The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it. In a similar manner, moons formed orbiting the gas giant planets.
Why is the scientific method so important in science
The scientific method attempts to minimize the influence of bias or prejudice in the experimenter.
Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. In science a bias is a systematic error.
name each of the following
I will give brainliest
Answer:
See. if it helps or not. I couldn't find any other good answer
Question 6 of 10
Which statement best describes science?
A. Science can answer any and all questions,
B. Science cannot answer questions about what people should do
C. Science cannot answer questions about the natural world,
D. Science can answer only mathematical questions,
Answer:
A..... science can answer all questions
Explanation:
science can answer all questions
como formaron los cientificos la escala de tiempo geologico?
Answer:
Para crear la escala de tiempo geológico, los geólogos correlacionaron capas de roca. Las leyes de Steno fueron utilizadas para determinar las edades relativas de las rocas. Las rocas más antiguas están abajo y rocas más jóvenes están arriba. La primera escala de tiempo geológico sólo mostraba el orden de los eventos
explain how artificial insemination is carried out in calves
Answer:
Artificial insemination (AI) involves placing semen directly into the uterus. Embryo transfer involves transferring fertilised ova from a donor female to a recipient female who then rears the calf.
I think this help you
Which statement best represents how structure relates to function
Answer:
Butterfly cocoons are often camouflaged
Explanation:
hope it help goodluck (◕ᴗ◕✿)
2. What are the modes of asexual reproduction in Porifera?
(Choose all that apply)
- gemmule formation
- budding
- binary fission
- shedding
Pls help ASAP I’ll give brainiest!!!!!
Answer:
Shedding, Budding, Gemmule Formation
Explanation:
I took the Quiz
Answer: The correct answers are "gemmule formation", "budding", and "shedding"
Explanation:
I took the test
What is another word for gas
Answer:
CNG /LPG
Explanation:
MARK AS BRAINLIEST
How much do the Tanakas spend on health insurance premiums each year
Answer:
6,000
Explanation:
Examine the model for natural selection for rodents and their predator species, the owls. Which statement accurately
describes the relationship between genetic variation and natural selection? Select ALL that apply.
A)
B)
Genetic variation decreases in a population of prey after natural selection
acts on it
Genetic variation increases in a population of prey after natural selection
acts on it
Genetic variation decreases in a population of predators after natural
selection acts on it
Genetic variation increases in a population of predators after natural
selection acts on it
Genetic variation exists in a population leading to individuals with
adaptations with different survival frequencies.
D)
E)
Indiana is home to fossilized
The correct answers are:
-Genetic variation decreases in a population of prey after natural selection acts on it.
-Genetic variation exists in a population leading to individuals with adaptations with different survival frequencies.
Genetic variation creates new variants of a gene; such a variant is called an allele. These variations occur as a result of the interaction between individuals with their environment, where it affects them in a way that determines their survival or not, as a consequence of their adaptability to the surrounding context. Thus, natural selection occurs, which establishes which individuals survive and which individuals do not. Thus, individuals characterized as prey who develop defense elements against hunters will be the ones who survive, while those who do not will be the ones who will perish.
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1.
Who is credited with first observing the cell in a microscope? What year?
2.
What type of organism was first viewed under this microscope?
3.
Explain what you know about eukaryotic and prokaryotic cells, and draw a label
of each.
Answer:
Robert hooke in the year 1665 was first to observe the cell.
Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
data collection
Example: repeated trials are not mentioned, and this would be important for optimal data collection
A)
B)
C)
The three(3) potential challenges or important points to consider when conducting a data collection are described below.
Data collection is a detailed process that is used in gathering and measuring information from a selected source by a researcher.
To perform a data collection, the following important points are to be considered :
Cost of data: before data collection, a researcher should check if the data that is being considered is affordable. this is done to avoid quitting.Accuracy: there are different types of data collection techniques these include: questionnaires, interviews, focus groups, observation and case studies. the data collection technique that should be chosen should provide the most accurate results.Validity of data: if your findings will truly represent the phenomenon you are claiming to measure, then the data collected is valid.Therefore the above important points needs to be considered during data collection.
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which elements would react most easily with each other?
Answer:
an element with a high electronegativity and an element with a single valence electron
Explanation:
Answer:
The Correct answer would be an element with a high electronegativity and with a single valence electron.
Explanation:
Atoms need 8 electrons in their outershells to be stable. If they don't have eight, they will try to borrow from other atoms. So if an atom only needs one more electron, think of it as being desperate and highly reactive. When an atom with only one valence electron (electron in the outershell) comes along, it's the easiest victim to borrow off of.
I hope this helps!! <3
what are the effects of the even on each of the Earth's four spheres?
Answer:
An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction.
1. Your friend needs quick energy! What kind of biomoleciste should he eat a lot of? 2. Why? Be specific, what do your cells do with this biomolecule that would help him run? 3. Name two kinds of foods have high amounts of this biomolecule.
Which question can be used to evaluate reliability of a source
Answer: The question can be used to evaluate the reliability of a source is Do these results support the author's own opinion?
In sources (books, articles, etc), reliability implies the information of a source can be trusted. This occurs if:
All the information is based on facts
The information is not manipulated by the author's opinion or interests
In this context, it is expected the information of the source is objective rather than influenced by the author's opinion. Therefore, one way to check the reliability of a source is "Do these results support the author's own opinion" because if the information is manipulated by a personal opinion, the source is not reliable.
Also, other questions are not appropriate because they are related to other aspects such as relevance, not reliability.
The answer as to which question can be used to evaluate the reliability of a source lies in the following options :
“Do these results support the author's own opinion?” “Is this data challenged by anyone in the public?” “Is this research relevant to me?” “Who was paid to do this research?”The correct answer would be “Do these results support the author's own opinion?”
First, the reliability of a source refers to the level of dependability or trustability of the source.That a data is challenged by someone in the public does not make it more or less dependable, all other things being equal.Who is paid to do a research has no bearing on the reliability of the outcome as long as the scientific method is followed to the core.However, if a result supports the opinion of the author of the result, this might call the reliability of the result into question.A result that reflects the opinion of its author might be scrutinized for confirmation bias. Hence, such a question can be sued to evaluate the reliability of a source.
More on the reliability of results can be found here: https://brainly.com/question/17080728
A type of plate boundary when to plates slide past with each other
Answer:
ok are you an army BTS Army
1. Explain how dehydration synthesis and
hydrolysis are related.
Answer: In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
During Transcription, an)
is created in the
A. mRNA strand, nucleus
B. polypeptide chain, nucleus
C. protein, cytoplasm
D. tRNA strand, cytoplasm
Answer:
A. mRNA stand, nucleus
Explanation:
Transcription is defined as the process of copying DNA. This happens so that the cell can produce the proteins necessary for basic life functions.
DNA cannot simply be taken out of the nucleus that easily. So, the DNA must be copied into a different form. That's what RNA is for, specifically mRNA.
mRNA stands for "messenger RNA", which is a copy of DNA that can be transported outside the nucleus and be read to produce proteins in ribosomes.
Transcription happens in the nucleus, where the DNA is housed in. It can't be located anywhere else anyways since DNA cannot leave the nucleus.
Therefore, our answer is A.
Topic: AP Biology
6. One of the big ideas in science is that an experiment can be __________________.
Based on what you learned from the research, what has impacted the climate the most in the last 5 thousand years?
Explanation:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.
Scientific investigations are done by following which process?
a scientific hypothesis
b scientific method
C scientific law
d scientific theory
Answer: scientific method
Explanation:
That’s how science works
Polycythemia is the overproduction of red blood cells. What complications could this create for the circulatory system in the following organs/tissues?
1. Blood
2. Blood vessels
3. Heart
4. Spleen
where does glycolysis take place in a cell?
7. Observations and inferences are
important in science. How would you
explain the difference between the
two words?
Hey there! I'm happy to help!
Observations are things that can be written down or described. You can observe something with any of your five senses: you can see what color something turns, you can hear the noise something makes, you can taste a cookie with a different amount of an ingredient, you can smell an odor produced by a chemical reaction, and you can feel the texture of different samples.
You can also create observations by using scientific tools. For example, instead of feeling if water is hot or cold, you could use a thermometer. This will give you numerical data which can be put into a table or graphed for further analyzing.
Inferences are created from observation. You cannot make an inference without observation. Observations lead to inferences. Inferences are conclusions or guesses made from the observations. You could infer that sugar makes a cookie taste sweeter after experimenting with no sugar and observing that it tasted bitter. You could infer that more weight allows things to travel further after going down a ramp after measuring the distances different weights travel, graphing it, and observing the data.
Have a wonderful day and keep on learning! :D
To which part of the nervous system do the cranial nerves belong?(1 point)
A. spinal nerves
B. the peripheral nervous system
C. the cerebrum
D. the central nervous system
The cranial nerves belongs to the peripheral nervous system. Thus, option B is correct.
What is nervous system?Nervous system is well organised system in our body as it performs a very important function. The main component of nervous system is spinal cord and brain..The cranial nerves belongs to the peripheral nervous system.
The nerves are arranged in the form of branches from the spinal cord and distributed in all the parts of body.The cranial nerves belongs to the peripheral nervous system.
The location where brain and spinal cord are located is known as dorsal body cavity and these two parts of the body play a vital role in communication of all parts of the body.The nerves are arranged in the form of branches from the spinal cord and distributed in all the parts of body.
Therefore,The cranial nerves belongs to the peripheral nervous system. Thus, option B is correct.
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What’s the answer of “The porous cross walls between sieve tube elements”??
Answer:
The xylem vessels and the phloem sieve tubes are connected end to end to transport the water and the food respectively to long distances in a plant. Their end plates are perforated to allow the easy passage of substances from one vessel and the sieve tubes.
Answer:
Sieve tube cells are placed end to end in phloem The end walls may be transverse or oblique They have many small pores called sieve pits Each sieve pit is lined by a layer of callose Excessive growth of callose closes the sieve pores Due to the presence of sieve pits the end walls are commonly called sieve plates
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