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vazorg [7]
3 years ago
14

The cause of the phases of the moon is a cycle that is close to how long

Biology
1 answer:
AnnZ [28]3 years ago
7 0

Answer:

The lunar phases gradually change over the period of a synodic month (about 29.53 days), as the orbital positions of the Moon around Earth and of Earth around the Sun shift. The Moon's rotation is tidally locked by Earth's gravity; therefore, most of the same lunar side always faces Earth.

Explanation:

You might be interested in
As part of maintaining homeostasis, why are hormones, secreted by endocrine cells, continuously inactivated?
IceJOKER [234]

Answer:

Homeostasis refer to as the maintainence of equillibrium within the body. Endocrine systems play a major role in maintainence of equillibrium. The hormones released are continuously inactivated by negative feeback system to maintain homeostsis.

Explanation:

Homeostasis in a body is refered as a dynamic equillibrium which constantly changes. Feedback regulation systems maintain homeosatsis.

The release of hormones into the blood is controlled by a stimulus. A stimulus can increase or decrease the release of hormones.The response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.

There are two types of feedback systems.

Negative feedback occurs when the response to a stimulus reduces the original stimulus. Positive feedback occurs when the response to a stimulus increases the original stimulus.

If the hormones released are not controlled by these feedback systems, enormous amount of hormones will change the whole internal enviornment of the body ,hence, equillibrium will be disturbed and result in death of cells and death of an indivisual.

8 0
3 years ago
Which of the following molecular movements is due to diffusion or osmosis? a) The sodium-potassium pump pumps three sodium ions
MrMuchimi

Answer:

The correct answer is  b) When a plant cell is placed in concentrated salt water, water moves out of the cell.

Explanation:

Osmosis is the movement of solvent molecules from an area of less concentration of solute to high concentration of solute to equalize the concentration of both the side of the cell.

So water will move outside the cell when any cell will be placed in a concentrated salt water because the concentration of solute is high in salt water and low inside the cell.

Therefore when a plant cell is placed in salt water the osmosis of water takes place from inside to outside the cell. So the right answer is b.

6 0
3 years ago
Which of the following statements describe how technology and research changed the understanding of genetics? Select all that ap
Goshia [24]

What are the options?

6 0
3 years ago
1. Consider two clear species as defined by the Biological Species Concept: a. Fertile hybrids can be quite common if they are s
Sedaia [141]

Answer:

The correct answer is option d. "All of the above".

Explanation:

A species is defined as a group of similar living organisms, constituting the basic unit of taxonomic rank of an organism. In Biology an hybrid is considered a species. It doesn't matter if the hybrid comes from combining the qualities of two organisms of different breeds, varieties or species Infertile hybrids such as mules and ligers are considered species as well.

3 0
2 years ago
The area of land from which water drains into a river
GREYUIT [131]

It is called a watershed.

7 0
3 years ago
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