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lukranit [14]
3 years ago
11

Which sentence best describes these two models?

Biology
1 answer:
Ugo [173]3 years ago
7 0

Answer:

B, I'm sure

Explanation:

Hope this helps!

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Which of the following principles of life describes a fundamental requirement for the growth of an organism:
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Answer: C - life is information expressed

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What is the relationship between a food chain and an energy pyramid?
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A food web is multiple food chains and an energy pyramid shows how energy moves through trophic levels.

Explanation:

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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
4 years ago
10. Lichens are among the first organisms to
lara [203]

Answer:

The correct option is H) these acids change the environment.

Explanation:

Soil can be described as the part of the environment where plants grow. In primary succession, life stars arising in an area which has no soil and only rocks, This is possible because lichens are the organisms which can grow on the rocks. Lichens secrete certain acids which break down these rocks and hence soil begins to form when these rocks break. This makes it possible for other plant species to grow on these lands.

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3 years ago
Which of these units are most commonly found/used in science?
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Answer:

Meters/grams are the most common.

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Grams are very exact and meters are also common to use.

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