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vovikov84 [41]
3 years ago
7

Which part of the heart takes blood from the veins and pumps it into a ventricle?

Biology
1 answer:
solong [7]3 years ago
4 0
the part of the heart takes blood from the veins and pumps it into ventricle is called atria
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Primary structure refers to the amino acid sequence of a polypeptidePrimary structure refers to blank. Secondary structure refer
Aleks04 [339]

Answer:

<h2>Protein exists in different forms- primary, secondary, tertiary and quaternary structure.</h2>

Explanation:

Primary structure of protein consists of amino acids joined by a peptide bonds. Peptide bond exists as covalent bond. Secondary structure of protein is stabilized by hydrogen bonds. Tertiary structure is stabilized by hydrophobic interaction, electrostatic interaction and disulphide bonds. Similarly, quaternary structure is stabilized by non-covalent interactions and disulphide bonds. So, each structure of protein is stabilized by different types of bonds.

5 0
3 years ago
A group of organisms that can breed with one another and reproduce fertile offspring.
Dmitry [639]

Answer:

Species

Explanation:

A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.

7 0
1 year ago
In a river, sediment is deposited _____.
PilotLPTM [1.2K]
In a river, sediment is deposited on the inside bends.
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3 years ago
The spinal cord begins at the Select one: a. cerebellum. b. medulla oblongata. c. foramen magnum. d. conus medullaris e. 1st cer
agasfer [191]
It is C. Foramen magnum
4 0
3 years ago
Which of these changes in the food web would cause a decrease in the population of bald eagles
bogdanovich [222]

The correct answer is C. A decrease in the population of sea ducks

Explanation:

Food webs are diagrams that represent the relationship of organisms in an ecosystem by showing feeding or predatory relationships. This means food webs show which organisms eats another organism. In the case of the food web presented, this shows bald eagles fed on sea ducks and large piscivorous fish, this implies for survival bald eagles need from these two organisms. In this context, a decrease in the population of sea ducks (option C) would cause a decrease in the population of eagles because fewer sea ducks imply less food for eagles, and therefore fewer resources to survive.

6 0
3 years ago
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