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marissa [1.9K]
3 years ago
14

The Statue of Liberty is made of copper that has turned green because it has undergone a change. What can be

Biology
1 answer:
sergey [27]3 years ago
6 0

Answer:

The change is not a physical change because a new chemical is formed on the outside of the statue.

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Which of the following can be found in both viruses and cells?
Vaselesa [24]
Something that can be found in both viruses and cells is bacteria. 
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3 years ago
The button-like structure that holds homologous chromosomes together at their middles during cell division is called the
Volgvan

Answer:

CENTROMERE

Explanation:

The CENTROMERE is the primary constriction region where the identical DNA molecules are most tightly bonded to each other during mitosis and meiosis.

The typical chromosome in metaphase is composed of two sister chromatids joined by the centromere.

Surrounding the centromere, we can find the kinetochores. These are laminar proteinic structures forming a plate where the spindle and kinetochore fibers will join during chromatids separation.

The position of the centromere defines the chromosomes as acrocentric, metacentric, or submetacentric.

7 0
3 years ago
1. Write a paragraph of 3-5 sentences to answer the following question. Your answer should demonstrate an understanding of the i
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
#31-35 please, I'm so confused :(
maw [93]
31. Carbon and hydrogen
32. Glycerol, fatty acid
33. Neighboring carbons, saturated
34. Carbon atoms, unsaturated
Didn't get 35
4 0
4 years ago
1. Which plant traps bugs in its stem and forces them to walk forward?
Zinaida [17]

Explanation:

The active trap in the Venus Flytrap ( dionaea muscipula )

5 0
3 years ago
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