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antoniya [11.8K]
2 years ago
13

Which of the following describes how the protozoan Stentor overcomes cell size limitations?

Biology
1 answer:
VikaD [51]2 years ago
7 0

The statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).

<h3>What are protozoans?</h3>

The protozoans (kingdom Protista) are unicellular single-celled organisms that generally live in aquatic environments.

The protozoan Stentor is a type of filter-feeding organism, which is heterotrophic and contain cilia.

In conclusion, the statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).

Learn more about protozoans here:

brainly.com/question/15427385

#SPJ1

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Name two types of evidence used to support the theory of evolution. explain how scientist use each type of evidence to provide s
joja [24]

Answer:

There are many types of evidence which support the theory of evolution such as comparative anatomy, fossil records, phylogenetic relationship, embryology et cetera

Comparative anatomy includes homologous organs and analogous organs. They support divergent and convergent evolution respectively.  

For example, the homologous structure of limb of humans, birds, bat, horse, whale et cetera show that they are made up of the same set of bones which are humerus, radius, ulna, carpals, metacarpals, and phalanges.  

It shows divergent evolution and supports that these organisms have evolved from a common ancestor.

Embryological evidence: When early stages of embryological development of different organisms are compared, it is found that these stages are similar at different levels of development.

For example:

  • The appearance of pharyngeal-arch (gill-like structures) in vertebrates during embryo development.
  • Salamanders and terrestrial frogs pass through larval stages within an egg. They possess the features similar to aquatic larvae, however, when they hatched out the eggs being ready for life on land.
3 0
3 years ago
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Many scientist are concerned that the Ogallala aquifer in the United States is being depleted at an alarming rate. What would mo
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This can cause other organisms that relay on this specific aquifer to find other sources of water or die. 

<span>An aquifer is actually an underground layer of water that contains permeable rocks, gravel, sand etc. the water can be brought to the surface by making a water well. Hydrogeology is the study of aquifers and the way of water flow in the aquifers. The depth of the aquifers differs from area to area and the aquifers that are closest to the surface are used for drinking and irrigation purposes. </span>
3 0
3 years ago
Drag the tiles to the boxes to form correct pairs.
Anarel [89]

Answer:

1) Oceanic-oceanic divergence

2) Continental- continetal convergence

3) Oceanic-oceanic convergence

Explanation:

Help this was helpful

3 0
3 years ago
Which molecules stores the energy that is produced during cellular respiration?
Sergio039 [100]

the answer is A.H2O

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3 years ago
What is nitrogen cycle and, what things need the nitrogen cycle and why is it important?
lapo4ka [179]

Explanation:

So plants need nitrogen to make their proteins (proteins are made of carbon, hydrogen, oxygen, nitrogen and small amounts of sulfer).

Unfortunately, the nitrogen in the atmosphere is inert (unreactive).

But there are still other ways to get nitrogen:

1. Lightning. It causes some of the nitrogen to combine with oxygen, forming nitrogen oxides. These dissolve in rain and are washed into the soil where they form nitrates.

2. Artificial fertilizers. There are literally ammonium compounds and nitrates in those bags that people sell.

3. Nitrogen-fixing bacteria. So there is bacteria in the soil that live in root nodules on plants.

What do they do?? They use nitrogen from air spaces in the soil and combine it with other subsrances to make ammonium ions and other compounds.

4. Nitrifying bacteria. They turn ammonium ions into nitrates, which plants can use again. (so basically they serve nitrogen dish to the plant)

They convert the nitrogen containing substances into BETTER nitrogen containing substances for the plant

5. Denitrifying bacteria. FINALLY these bacteria turn nitrates and ammonia in the soil into nitrogen gas, which goes back to the atmosphere.

And the cycle goes on from the start...

Note that 1-3 are just ways in which nitrogen can be converted into a more reactive form.

I Hope this helps

6 0
3 years ago
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