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andreyandreev [35.5K]
3 years ago
10

___are structures that allow for one-way blood flow through the heart.

Biology
2 answers:
qwelly [4]3 years ago
7 0

The answer is Valves.

DedPeter [7]3 years ago
4 0

The heart is primarily made of a thick muscle layer, called the myocardium, surrounded by membranes. One-way valves separate the four chambers. After blood passes through the pulmonary arteries, the right semi lunar valves close preventing the blood from flowing backwards into the right ventricle.

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Answer:

B

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Answer:

A semipermeable membrane is a barrier that will only allow some molecules to pass through while blocking the passage of other molecules. A semipermeable barrier essentially acts as a filter. Different types of semipermeable membranes can block out different sized molecules. A semipermeable membrane can be made out of biological or synthetic material.

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romanna [79]
A not sure if it’s right
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4 years ago
Numerical Representation
pychu [463]

Answer: In mathematics, a representation is a very general relationship that expresses similarities (or equivalences) between mathematical objects or structures. The label representation is sometimes also applied to the homomorphism itself (such as group homomorphism in group theory).

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3 years ago
Describe two ways in which bacteria and the fungus Penicillium are similar?
padilas [110]
Bacteria and fungi share only a few similarities. Both are cells and microscopic. Both the bacteria and fungi also has a cell wall and a cell membrane. However, these two cells are very much different with respect to each other in many ways. Bacteria, in terms of the cell wall, has a soft cell wall in which the main component is peptidoglycan while for fungi their cell wall is mostly made up of chitin which makes it hard. Bacteria grows by binary fission while fungi grows through branching and elongation. <em>Penicillium</em> is a genus of a fungi with a major role in antibiotic production. Therefore <em>Penicillium</em> share the same characteristics with fungi.
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