Answer:
Astrocytes are the neuroglia, which help to regulate the reuptake of neurotransmitters from neural tissue.
Cell bodies of unipolar neurons are insulated from adjacent cell bodies by satellite cells.
The ventricles of the brain are lined with ependymal cells, which form an epithelial layer that is permeable to cerebrospinal fluid.
The macrophages of the Central Nervous System, which function to remove foreign microorganisms, are called microglia.
The myelin sheath of the Central Nervous System is formed by oligodendrocytes.
Axons of unipolar neurons are insulated by Schwann cells, which increase the speed of the electrical impulse.
Explanation:
The neuroglia cells are a group of specialized cells that are in the Central and Peripheral Nervous System.
Astrocytes are star-shaped cells that maintain homeostasis in the nervous tissue. They also are part of the blood-brain barrier controlling what can enter the brain and whatnot.
Satellite cells are in the Peripheric Nervous System. They are around neurons and provide nutrients and insulation to neurons.
Ependymal cells are in the Central Nervous System. They line the ventricles and spinal cord's central canal. They are the ones that help in the production and circulation of the cerebrospinal fluid (CSF). They are part of the blood-cerebrospinal fluid barrier, keeping the cerebrospinal fluid clean, and they also absorb the CSF.
The microglia are the macrophages of the Central Nervous System. They phagocytize any pathogen that they detect in the CNS, protecting the neurons.
The myelin sheath is formed by the oligodendrocytes in the CNS and by the Schwann cells in the PNS. Their function is to insulate the axons so that the electrical impulse can travel through them.
Look at the graph below. Which of the following stars is most likely to be red? (5 points) a Star A b Star B c Star C d Star D
Answer:
????
Explanation:
Hey! I hope you had a great day so far :)
But uh...
I cannot answer that question for you.
There are no "stars" and definitely no graph on a file attached.
Sorry!
Helper's Message:
Hey, I hope you can give me a Brainliest :)
-ChocoChocoCho
Answer:
?????
Explanation:
you didn't add the graph but I'm sure that you will figure the answer out I believe in you. have a great day and 2022
Please help!!!!!!!!!!!!
Answer:
253.585 square inches
Explanation:
The figure can be decomposed into 2 rectangles and a quarter circle.
Area of the figure = area of rectangle 1 + area of rectangle 2 + area of ¼(circle)
✔️Area of rectangle 1 = Length × width
Length = 10 in
Width = 6 in
Area of rectangle 1 = 10*6 = 60 in²
✔️Area of rectangle 2 = Length × width
Length = 10 in
Width = 6 + 7 = 13 in
Area of rectangle 2 = 10*13 = 130 in²
✔️Area of ¼(circle) = ¼(πr²)
r = 9 in
π = 3.14
Area of ¼(circle) = ¼(3.14*9²) = 63.585 in²
✅Area of the figure = 60 + 130 + 63.585 = 253.585 square inches
Transcribe the following DNA strand: ATGCATTGCGAT
Usually the outermost planet of the solar system is Jupiter.
Please select the best answer from the choices provided
от
OF
Answer:
False
Explanation:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
(Pluto)
the outermost planet is technically neptune but some still consider pluto a planet. but jupiter is not the outermost planet.
Which of the following does NOT occur during interphase?
1.each chromosome replicates
2.the nucleus disappears
3.microtubules extend from centrosomes
4.centrosomes are duplicated
Answer:
The nucleus disappears
Explanation:
The nucleus does not disappear in interphase but instead, the cell grows and splits to make another duplicate of the cell. Which means the cell will also split to make another duplicate nucleus.
When a light in turned on which change takes place?
A. Electrical energy moves from P to K
B. Electrical energy moves from K to P
C. Magnetic energy moves from P to K
D. Magnetic energy moves from K to P
(Btw I’ll give points + brainalist)
Answer:
C
Explanation:
Any trait that helps an organism survive and reproduce under a given set of environmental conditions
Answer:
tempature and time
Explanation:
What does inflammation lead to allow white blood cells to find the
infection and the release of cytokines?
help i’m lost i have no clue what this is
A massive flood tears out many trees in a wooded area. What would you expect the area to look like a year later?
A.
A new species of trees will be about half grown.
B.
Grasses and weeds will be growing in the sunny areas.
C.
It will look exactly like it did before the flood.
D.
There will not be any plants growing the first year.
Answer:
b
Explanation:
How many objects must be present in a system to demonstrate gravity as a force of attraction?
Answer:
Explanation:
Knowing the value of G allows us to calculate the force of gravitational attraction between any two objects of known mass and known separation distance. As a first example, consider the following problem.
Word Bank :
Condensation
Evaporation
Precipitation
Sublimation
Transportation
Using the works from the Word Bank, explain how the water cycle works. You must using complete sentences and using all of the words in the word bank. Please write you answer in 5 or more sentences using words used from the word bank.
Which of these are present in both woody and herbaceous stems? (Select all that apply.)
A. xylem
B. rings
C. seedlings
D. phloem
Answer:
xylem & phloem are present in both woody and herbaceous stems
Explanation:
Vascular system is present in both, woody and herbaceous stems. Thus, option A, and D are correct.
What are vascular tissues?In vascular plants, A tissue which is complex in nature, formed by more than one type of cells are called as vascular tissues. Two main types of vascular tissues are:
XylemPhloemThe transportation of water from roots to stem and leaves of the plant is carried out by xylem. Xylem consist of tracheids and vessel elements, which have different characteristics, but both play significant role in transportation of water and nutrients.
The soluble organic compounds synthesized during photosynthesis in the plants are transported by another vascular tissue called as phloem, in process called translocation. It consists of sieve elements, parenchymal cells, fibers, and sclereids.
Therefore xylem and phloem are present in both, woody and herbaceous stems.
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Guys, please take a look at this. I know that the answer is NOT A.
Answer:
C
Explanation:
There are 4 zeros, which fits the "at least three" criteria.
X plus a number means the root is negative on the graph, so all roots are negative.
(x+3) occurs twice meaning it has a multiplicity of 2.
Which of the following best describes how the RNA sequence specifies the production of an amino acid chain?
A.
Each individual RNA base codes for three amino acids.
B.
Each group of three RNA bases codes for an enzyme that connects amino acids.
C.
Each individual RNA base codes for a ribosome location where amino acids are assembled.
D.
Each group of three RNA bases codes for a specific amino acid.
Answer:
The answer is B Each group of three RNA bases codes for an enzyme that connects amino acids.
What does Hemoglobin pick up once it has given up all its oxygen molecules?
A. Carbon dioxide
B. Nitrogen
C. Carbon
Answer:
Carbon dioxide
Explanation:
Hb has been observed in the epithelial cells of human tissues including lungs neurons retina and. endometrium our group has recently demonstrated tha Hd is expressed by the cervicovaginal epithelial cells.
FAKE ANSWERS WILL GET REPORTED.
PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
PLEASE HELP !!!! ILL GIVE BRAINLIEST !!!
Answer:
a.
Explanation: i had this in a social studies test before its a
Answer:
IN my opinion, it should be B
Explanation:
what is a scienctific theory
Answer:
" A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."
Explanation:
- Eijiro <3
Globalization of the economy is increasing because of which of these factors? O A. Agreements limiting immigration OB. A decrease in international travel O C. Treaties expanding international trade O D. A decrease in demand for resources
Answer:
C is the best answer
Explanation:
This answer makes the most sense in the context of globalization.
Globalization of economy is increasing because of Treaties expanding international trades .
What is globalization ?The process by which businesses or other organizations develop international influence or start operating on an international scale can be referred as Globalization.
What are the factors of economic globalization?Three suggested factors accelerated economic globalization:
advancement of science and technology, market oriented economic reforms contributions by multinational corporations.Globalization of economy is increasing because of treaties expanding international trades .
Hence ,option C is correct
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Explain why atmospheric concentrations of carbon dioxide are expected to increase in the future.
Answer:
because of factories and cars and smoking
Explanation:
which of the following events does not occur in spermatogenesis
Answer:
The mitochondria and Golgi apparatus are packaged into the head of the sperm.
Explanation:
Spermatogenesis is the production of male germ cells. Sufficient stimulation with sex hormones, especially testosterone, and a lower temperature, which is achieved by placing the testicles in the scrotum, are required for the correct course of spermatogenesis. Sperm production has three phases: reproductive, growth and maturation. At the beginning of sperm development are spermatogonia, which are male primordial cells. They have a spherical shape and are located at the edges of the seminal canals. Spermatogonia is mitotically divided. On the one hand, in order to preserve their numbers, and on the other hand, their division produces primary spermatocytes, which lie above the layer of spermatogonia. Primary spermatocytes are diploid, but after the first meiotic division, haploid secondary spermatocytes are formed from them. They still have double chromatids, so a second meiotic division soon occurs, the product of which is spermatids. Spermatids are already fully haploid and do not divide further. Spermatids then undergo a process of spermiogenesis, in which the nucleus condenses, forming a flagellum and losing most of the cytoplasm and some organelles. Immature sperm travel through the seed-forming canals to the epididymis, where they are definitively matured. This whole process takes about 72 days.
The production of red blood cells is regulated by a feedback loop involving erythropoietin. In non-disease states, the production of red blood cells is equal to the destruction of red blood cells, thus maintaining sufficient red blood cells to deliver adequate oxygen to the body's tissues. However, when the number of red blood cells decrease and oxygen levels are low, erythropoietin is produced by the liver and kidneys to increase the production of red blood cells. Is this a positive or negative feedback loop
Answer:
Negative feedback.
Explanation:
The production of erythropoietin by the liver and kidneys is a negative feedback because with the production of erythropoietin, our body tends to move to become more stable state. The erythropoietin is produced by the liver and kidneys to increase the production of red blood cells if the quantity of red blood cells are lower than the normal range. If the number of red blood cells are decreases the oxygen level in our body is low that leads to unstable condition of the body but when the concentration of red blood cells increases, the body move towards stability.
If an organism has a diploid number of 54, how many chromosomes will be in each of its gametes?
a. 54
b. 52
c. 27
d. 104
e. 108
There will be 27 chromosomes in each of its gametes.
• Meiosis is also called reductional division, in the process s-ex cells, that is, sperm and egg are produced, and each cell has the half number of chromosomes than its parent cells.
• In the given case, the organism is diploid with 54 chromosomes, that is, 2n = 54.
• Here n is the haploid number of chromosomes, in the given case, n = 27, that is, the haploid number of chromosomes is 27.
• Therefore, the sperm and egg cells have 27 number of chromosomes each.
Thus, the correct answer is option c, that is, 27.
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Answer: what does the question say i cant see the attachment?
Explanation:
Answer: 3. anticodon, 4. amino acid, 5. In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. 6. The process of gene expression involves two main stages: Transcription: the production of messenger RNA (mRNA) by the enzyme RNA polymerase, and the processing of the resulting mRNA molecule. 7. 64. 8. One codon, AUG, specifies the amino acid methionine and also acts as a start codon to signal the start of protein construction. There are three more codons that do not specify amino acids. These stop codons, UAA, UAG, and UGA, tell the cell when a polypeptide is complete. 9. In the process of translation, the mRNA attaches to a ribosome. Next, tRNA molecules shuttle the appropriate amino acids to the ribosome, one-by-one, coded by sequential triplet codons on the mRNA, until the protein is fully synthesized. When completed, the mRNA detaches from the ribosome, and the protein is released. plzz mark brainliest
Explanation:
How did a famous event change the course of the American Revolutionary War? in essay form pls
Answer:
The American Revolution was a political battle that took place between 1765 and 1783 during which colonists in the Thirteen American Colonies rejected the British monarchy and aristocracy, overthrew the authority of Great Britain, and founded the United States of America. See the fact file below for more information and American Revolution facts.
-The American Revolution, also known as the Revolutionary War, began in 1775.
-British soldiers and American patriots started the war with battles at Lexington and Concord, Massachusetts.Colonists in America wanted independence from England.
-The British government attempted to pass some laws, enforce several taxes, and increase more control over the colonies.
-The colonies strongly objected to these laws and taxes.
-They wanted England to have no control over them.
-For ten years before the war actually started, there was a lot of tension between England and the colonies.
-The colonies had no central government at the beginning of the war, so delegates from all the colonies were sent to form the first Continental Congress.
-George Washington, a former military officer and wealthy Virginian, was appointed Commander in Chief of the Continental Army.
-Members of the Continental Congress wrote a letter to King George of England outlining their complaints and declaring their independence from England.
-On July 4, 1776, the Continental Congress adopted the Declaration of Independence, in which the colonies declared their independence from England.
-The war ended in 1783, and the United States of America was born.
Explanation:
Question: 1-7
Which of the following is NOT a function of the stem in a plant?
o absorb water
store nutrients
produce new plant cells
O support flowers and leaves
Answer: Absorb water
Explanation: i took the quiz the other guy is wrong
Absorbing the water from soil is function of root and not a stem. Thus, option B is correct.
What is stem?The structural part of plant, that supports leaves, flowers, and fruits is called as stem. Stems are frequently differentiated for storage, asexual reproduction, protection, or photosynthesis.
The stem is divided into nodes and internodes. Node consist of buds and leaves, that can grow into the branches. It also gives rise to adventitious roots. The function of internode is to distance one node from another.
Stem supports and uprights leaves, flowers and fruits. The stem keeps the leaves in the light and provides the plant with a place to hold the flowers and fruit. It transports fluid between xylem and phloem roots and shoots. Therefore, transportation of water and nutrients is the function of stem, and not absorption. Hence, option B is correct.
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Explain what lyell and Darwin did to contribute to the theory of evolution
Answer:
so he can evolve humanity
Explanation:
Why do males determine the sex of the offspring in humans?
1
they have testosterone
they have two different sex chromosomes
they have no sex chromosomes
males do not determine the sex of offspring in humans
o they have two of the same sex chromosomes
Answer:
males do not determine the sex of offspring
Explanation:
this question lacks intellectual merit on multiple levels of analysis
The above graph shows how temperature affects the rate of a reaction that uses the catalase enzyme. What trend is shown by the graph?
A.
Between zero and twenty-seven degrees Celsius, the rate of the reaction increases as the temperature increases.
B.
Between thirty-seven and sixty degrees Celsius, the rate of the reaction increases as the temperature increases.
C.
Between zero and twenty-seven degrees Celsius, the rate of the reaction decreases as the temperature increases.
D.
Between sixty and one hundred degrees Celsius, the rate of the reaction decreases as the temperature increases.
Answer:
the answer is A.
Explanation:
B and C are wrong because they are describing the opposite of what is happening in the graph. D is wrong because there is no change in the reaction rate between 60 degrees and 100 degrees.
The rate of the reaction rises with temperature between zero and twenty-seven degrees Celsius, hence option A is correct.
How does enzyme activity is affected?At various temperatures, catalase functions in different ways. The catalase enzyme becomes more active as the temperature rises from 0°C to about 30°C Up to 100°C, and catalase activity declines as the temperature rises.
The hydrogen bonds between molecules of hydrogen peroxide relax as the temperature rises toward the optimal point, facilitating catalase's reaction with the molecules.
Temperature raising speeds up a process, and lowering temperature slows it down. If the temperature rises over the optimal range, the enzyme denatures and its structure is destroyed.
Therefore, but extremely high temperatures can denature an enzyme, causing it to lose its form and cease functioning. Every enzyme has a preferred pH range, hence option A is correct.
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Which of the flowing best describes how reduced space affects the animals in an environment?
a
They will have more food and water to share.
b
The population of the animals in that space will increase.
c
They will compete and fight for resources.
d
They will struggle to survive.
Answer:
d
Explanation:
they will not be able to survive with no food or water
p.s. i know the other person answered it but they did not explain it
Answer: Option (D) Is correct, They will struggle to survive.
Explanation: Hope it helps!
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