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Anastaziya [24]
3 years ago
12

How oxygen, nutrients, and wastes are exchanged between maternal and fetal

Biology
1 answer:
11111nata11111 [884]3 years ago
6 0

Answer: The blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.

Explanation:

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A food web is shown in the diagram below.
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Which of the following best describes the relationship between a mutation and a resulting change in the eye color of a rabbit
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A. gene structure changes ---> protein structure changes ----> protein function changes ----> observable trait changes

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The gene structure changes before the protein structure, enabling it to building a new structure and therefore, the previous protein functions have a different function afterwards. Then, the observable traits will be affected and modified according to the new structure.

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Why is nitrogen important?​
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Explanation:

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True or false: <br><br> Mollusks are more closely related to roundworms than to annelids.
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False

Explanation:

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8 0
3 years ago
Please help i don't get it
pantera1 [17]

Answer:

♡Technically, You need an example of each definition.♡

-- Here is the answers.

Explanation:

✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:*

1. One cell for a Phagocyte is called amoeba.

2. A cell that produces antibodies is called B lymphocytes.

3. A cell which produces histamine in an allgeric response is called antigens.

4. A cell that allows the secondary response to be faster than the primary immune response is called Antigen‐specific T cells.

5. A cell which differentiates to form a plasma cell is called B cells.

6. A cell that destrosy cells which are infected with a pathogen (in cell mediated response is called cytotoxic, helper, and suppressor T cells.

Hope I could help you, sorry I am late! :(

Have a great day! (´。• ᵕ •。`)

✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚: *✧・゚:* ✧・゚:

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