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Annette [7]
3 years ago
6

What is the main function of the circulatory system in multicellular organisms?

Biology
1 answer:
mamaluj [8]3 years ago
8 0
<span>main function of the circulatory system in multicellular organisms is to circulate blood and oxygen in our body .so the right option is
</span><span>A) to bring oxygen into the lung 
</span>hope this helps
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Does Oxygen have a cation or anion?
yaroslaw [1]

Answer:

Explanation:

I think its anion

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2 years ago
Which best describes the role of a primary consumer in a food web?
Soloha48 [4]

Answer:

Herbivore that feeds on producers

Explanation:

The producers are plants at the bottom of the food web. These are eaten by herbivores, that are the primary consumers.

Herbivores themselves are consumed by carnivores, which are secondary consumers.

Sometimes, these carnivores can be consumed by top predators, like a shark, snake or eagle.

<u>Options and why they are right/wrong</u>

Carnivore that feeds on producers  - carnivores do not feed on producers

Herbivore that feeds on producers  - this is correct

Herbivore that feeds on primary consumers  - primary consumers are animals and herbivores do not eat animals

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4 0
3 years ago
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The major function of the placenta is to
beks73 [17]

Answer:

(2) exchange food, oxygen, and waste between

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Explanation:

In most mammals like humans, the fetus produced as a result of the fertilization of the sperm and egg, develops in the uterus or womb of the female. However, this developing fetus cannot yet fend for what it requires for survival and is still dependent on the mother e.g nutrients, oxygen etc. How do this substances get to the fetus? Here comes the role of the PLACENTA.

Placenta is an organ in the uterus that serves as a connection between the mother and the fetus in her womb. The placenta enables the mother to pass digested nutrients to the fetus and exchange gases (oxygen and Carbondioxide) between them via the umbilical cord. The placenta also enables the mother remove waste produced by the fetus into her bloodstream.

6 0
3 years ago
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How does dna synthesis occur, and what is the direction of synthesis?
notsponge [240]

Answer:

DNA synthesis occurs in the 5′ → 3′ direction only and requires a large suite of specialized enzymes.

Explanation:

7 0
2 years ago
The intermediate disturbance hypothesis states that
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