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dem82 [27]
4 years ago
8

PLEASE HELP I WILL GIVE BRAINLIEST

Biology
2 answers:
gtnhenbr [62]4 years ago
7 0
D the mid twentieth century
gtnhenbr [62]4 years ago
4 0

fue en 1994 osea en el siglo 20 (siglo xx)-d

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What is the major function of the lymphatic system?
Norma-Jean [14]

Answer: d. return leaked fluids back to the cardiovascular system.

Explanation:

The lymphatic system is a web of vessels and tissues that transfers clear fluid that is called as the lymph. The lymphatic system spreads all over the body and filters and clean up the lymph, abnormal cells and pathogens. The filters traps the foreign particles from the blood. It also promotes the filtered fluid to reach back to the cardiovascular system and distribute to all the parts of the body in the form of blood.  

       

6 0
3 years ago
The level of carbon dioxide was measured in a garden and on a city road. Where do you think the carbon dioxide level will be hig
Ad libitum [116K]
<span>The carbon dioxide level in the city will be higher because the exhaust gases from vehicles release carbon dioxide and there are not many trees to utilize it.

Plants go through photosynthesis using carbon dioxide, releasing oxygen in the process, so more of the carbon dioxide is used in the garden. Plus, there is more carbon dioxide in the city to begin with, simply because there are more vehicles with more exhaust.</span>
5 0
3 years ago
A particular cell has a mutation that causes it to make defective centromeres. What would you expect to occur during mitosis for
cluponka [151]

Answer:

Chromosomes will not align at the equator of the cell, and subsequently will not separate to opposite poles.

Explanation:

Mitosis is a cellular division that results in daughter cells with identical copies of the genetic material as the parent cell. Mitosis is characterized by different stages viz: Prophase, Metaphase, Anaphase, and Telophase. The centromere is a very important part of the cell during division as it produces microtubules that grows out and bind to the kinetochore of each chromosome, hence, aligning them at the CELL PLATE (cell equator) and subsequently pulls them apart to opposite poles. This alignment and pulling apart occurs during METAPHASE and ANAPHASE respectively.

Mutation is any change that occurs in the nuceleotide sequence of the genetic material (DNA). If a change/mutation occurs leading to a defective or non-functional centromere, the centromere will no longer be able to produce microtubules that will bind to the kinetochores of each chromosome. Therefore, the chromosomes will be unable to align at the equator/middle of the cell and most importantly, inability to separate to opposite poles, which is the main point of Mitosis.

4 0
3 years ago
Erythrocytes might the best of example of form equals function because they lack many organelles. What organelles are absent in
borishaifa [10]
Mature mammalian red blood cells lack nuclei, mitochondria and rough endoplasmic reticulum, they do not contain DNA and consequently, cannot divide. They also cannot synthesise RNA nor synthesise any new proteins, and consequently, have a limited lifespan. Mature red blood cells circulate for about 100–120 days in the body before they are removed by the spleen.

Hope this helps
8 0
3 years ago
Alcoholic beverages A) dilate the blood vessels and B) increase the amount of water removed from the blood. How would factors A
Amiraneli [1.4K]
Answer:

D.) <span>Both factors would decrease blood pressure.
</span><span>
Explanation:

When dilation occurs the area will increase , and when this happen pressure decreases and  when amount of water/ion decreases it also causes decreases in pressure.</span>
3 0
4 years ago
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