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DedPeter [7]
3 years ago
5

Which are characteristics of all protists? Select two options.

Biology
2 answers:
nataly862011 [7]3 years ago
5 0

Answer:

b) they have a nuclei

and

c) they live in moist environments

Explanation:

i just took the quiz and i want to  make sure people get it.

Andru [333]3 years ago
3 0

Answer:

<h3>The correct answers are :</h3>

<u>(B) They have nuclei </u>

<u>(C) They live in moist environments.</u>

Explanation:

Protists are very diverse group of organism, it contains all the organisms that does not fits into other kingdom. All of the protists are not heterotrophs some of them are autotrophs. They reproduce sexually but some of them reproduce asexually. Example: amoeba: binary fission. Some of the protists are multicellular. Some of them are unicellular too.

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The energy available at the trophic level that has secondary consumers is 50 kilocalories. How much of this energy is most likel
mihalych1998 [28]
<h2>Answer:</h2>

Option C is correct.

C. 5 kilocalories

<h2>Explanation:</h2>

Only a little amount of energy as 10% is transferred to the next trophic level. This is called 10% rule. So, in this case as the energy available at the secondary trophic level is 50 kilocalories and 10% of it is transferred into the tertiary level so it would be 5 kilocalories.

4 0
3 years ago
Which describes the missing step?
Nimfa-mama [501]

Answer:

The missing step is oxygen is removed from the water after step 3.

Explanation:

The steps listed by Xavier are:

  1. <em>Water is drawn in trough pores and enters the central cavity. </em>
  2. <em>Food is filtered and digested. </em>
  3. <em>Water leaves trough an opening at the top of the body.</em>

Porifera or sponges are aquatic, immobile invertebrates whose structure is saccular with an upper opening, the osculus.

Sponges absorb water through their pores, where the porocytes are found, and through flagellated cells -the coanocytes- the movement that allows the entrance of water to the spongocele or atrium is produced, in addition to the phagocytosis of organic elements.

Once the water is in the interior chamber of the sponges, the organic particles are phagocyted to be digested, and the oxygen is removed from the water, and passes through diffusion into the cell.  The waste products, as well as carbon dioxide, are released into the water that will be expelled through the osculus.

<u><em>In Xavier's list, the missing step is the removal of oxygen from the water, before it is expelled from the body of the sponge</em></u><em>.</em>

<em />

Learn more:

Sponge structure brainly.com/question/11256747

6 0
3 years ago
Which method of seed dispersal most likely accounts for the solitary coconut palm in the followingscenario?
ohaa [14]

Answer:

it would be c

Explanation: when the volcano erupted the huge blast sent the new species of tree seed into the air where they landed and begin to grow

5 0
3 years ago
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What is the disadvantage of a shallow shoulder socket
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The shallow shoulder socket makes the joint unstable, which makes the bone easy to dislocate.
4 0
3 years ago
The acceleration of gravity is a constant equal to _____
Blababa [14]
The answer Is the letter D
6 0
3 years ago
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