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8_murik_8 [283]
3 years ago
7

The text describes several organelles in eukaryotic cells that seem to operate like bacterium. What relationship does this sugge

st between prokaryotes and eukaryotes? This suggests an endosymbiotic relationship between prokaryotes and eukaryotes caused eukaryotes to evolve from prokaryotes. Tell me how this evolution happened and what evidence supports this theory.
Biology
1 answer:
navik [9.2K]3 years ago
4 0

Answer:

Answer

Explanation:

Eukaryotes are the cells that make up our bodies, plants and animals and all cellular organisms that contain their genetic material in a nucleus, have a cytoskeleton and contain organelles, such as mitochondria or cytoplasts. Eukaryotes are thought to have evolved from prokaryotes. Bacteria and archaea are classified as prokaryotes, a group of simple, single-cell organisms. Prokaryotes usually contain a single, circular deoxyribonucleic acid, DNA, molecule and lack a nucleus and intracellular organelles.

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Does health insurance system in the US affect the work of health scientists? Why or why not?
notka56 [123]

Answer:

pretty sure that health scientists, assuming they understand pharmaceutical actions and reactions, get paid either way & possibly get cheaper h insurance for their expertise.

Explanation:

No, does not affect their work because they get paid to test new drugs on lab rats, chimps, dogs, etc. to see if there is an effect on subjects they give a medical condition to. As unfair as it seems, once lab subjects are tested for years, and they witness if they're theories are justified or not; then they determine a trial run on human test subjects. this process can take up 2 10 years or longer.

8 0
3 years ago
Since most organisms cannot use N2 directly from the atmosphere, the process of _______ allows microorganisms to convert inorgan
ad-work [718]
Nitrogen fixation.
Nitrogen fixing prokaryotes within the soil assimilate N2 to NH3.
4 0
4 years ago
What is another name for the circulatory system, which transports blood throughout the body?
masya89 [10]

Answer:

Cardiovascular system

Explanation:

Cardiovascular means relating to the heart and blood vessels. Even though blood system sounds like an appropriate name, the circulatory system studies more than just blood, it studies the heat and blood vessels as well.

3 0
4 years ago
Most land-dwelling invertebrates and all of the amphibians _____. _____ Select one: a. are ectothermic organisms with variable b
valkas [14]

Answer:

A.)are ectothermic organisms with variable body temperatures.

Explanation:

Invertebrates animal are animals that lack a backbone, Land invertebrates include insects,spiders, centipedes ,coelenterate, an arthropod, mollusc and the rest.

Ectotherms are also called called cold-blooded animal because their bl body temperature regulation is dependendent on external sources, such as sunlight or a heated rock surface. Some of the examples of ectotherms are fishes, amphibians, invertebratesand reptiles. The aquatic ectotherms body temperature is usually compare closely to the temperature of the surrounding water

Ectothermic species that lives in temperate regions usually experience rapid and potentially stressful changes in body temperature simply because of weather changes even among amphibians there is variation in their temperature

It is believed that naturally occurring periods of temperature variation negatively impact amphibian health.

7 0
3 years ago
Need some help please
Sever21 [200]

Answer:

Question 1 - c. vv

Question 2 - b. Any of the non-sex chromosomes

Question 3 - b. Eukaryotic

Explanation:

Question 1

As explained, the gene for normal wings (V) is a dominant gene while the gene for the vestigial wings (v) is recessive. Dominant genes overpower any recessive genes.

VV - Two dominant genes will produce the dominant trait

Vv - The dominant gene (V) overpowers the recessive gene (v) and produced the dominant trait.

This means that the only way to have a fly with vestigial wings is if the fly has 2 recessive genes. This means that our answer is c. vv

Question 2

An autosome is defined as any of the non-sex chromosomes.

Question 3

Linear chromosomes are a type of chromosome most often found in eukaryotic cells. On the other hand, prokaryotic cells usually have circular chromosomes. This means that our answer is b. eukaryotic

~Hope this Helps!~

3 0
3 years ago
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