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Amanda [17]
3 years ago
14

What are the properties of spongin? How do household sponges use such properties?

Biology
1 answer:
mel-nik [20]3 years ago
8 0
It is the first phylum in animalia
it has holes all over the body for circulation of water and food through out the body
it is freely marine animals

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nignag [31]

Answer:

When you sit on a plane for 6 hours without moving, blood accumulates in your veins, and the moment you get up, gravitational forces affect venous return, cardiac output, blood pressure, and venous pressure. That way, when you're sitting on a plane, the gravitational force is the same at the upper and lower extremities, such as the chest, abdomen, and legs, causing venous blood pressure and volume to be evenly distributed throughout the body. However, when one gets up, one becomes dizzy because of abnormal regulation of blood pressure. This is because gravity causes blood to accumulate in the lower extremities (veins of the legs and trunk). This lowers the blood pressure and the blood that the heart pumps. By causing blood to accumulate in the lower extremities, and as venous compliance increases, the veins expand with blood that causes the volume of blood to shift in the veins. This increases the volume and venous pressure in the lower extremities when standing. And the volume of thoracic venous blood is less and less central venous pressure. This leads to a decline in stroke volume. Cardiac output and mean arterial pressure also decrease as left ventricular stroke volume decreases, reducing pulmonary venous return. Decreased standing blood pressure, referred to as orthostatic or postural hypotension. Thus, lowering blood pressure decreases cerebral blood flow, which means less range of blood in the brain causing dizziness.

Explanation:

6 0
3 years ago
PLEASE HELP ASAP !!! Like many multicellular organisms, plants have organs that perform specific functions. Which of the followi
Sav [38]

Answer:

Its A, the roots of plants absorb the water used in the process of photosynthesis

Explanation:

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4 0
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Tom [10]

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Explanation:

A limiting factor is any condition whose decrease, increase, absence or presence is able to limit/stop population growth. Examples of limiting factors include abiotic conditions (e.g., temperature, water, oxygen, CO2, etc) or biotic conditions (e.g., food, mate, etc). There are many aquatic species that require high levels of oxygen (e.g., fish), thus being it a limiting factor for these species.

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How many amino acids will be in the polypeptide produced by the normal DNA/mRNA sequence
aniked [119]
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