Answer:
so the answer is c
Explanation:
A staircase is an example of the inclined plane simple machine. A spiral staircase, however, is categorized as a screw.
<span>Lungs take in air, and diffuse (absorb) air into the capillaries of the blood. However, this process is two steps, one for inhalation and one for exhalation. Diffusion takes place in both processes, and serves different purposes. One is to absorb oxygen, the other is to rid co2.</span>
Answer:
The correct option is cell wall and central vacuole.
Explanation:
The cell wall can be described as an additional membrane around the cell membrane which is present in the plant cells but is absent in animal cells.
The plant cells also have a vacuole located at the center on the cell. The central vacuole is absent in animal cells. It stores the waste and other materials for the plant cell. The plant vacuole also provides support to the cell.
Answer:
Rift Valley
Explanation:
This happens when the plates pull apart. They don’t collide and are not any form of mountains.
Advantages of asexual reproduction:
- There is no need for a mate/ only one parent is required
- It takes less time compared to sexual reproduction
Disadvantages of asexual reproduction:
- There is little genetic variation/less diverse population
- Offspring cannot adapt to change
Advantages of sexual reproduction:
- Genetic diversity
- Offspring can adapt to change
Disadvantages of sexual reproduction:
- Two parents are needed
- Slow reproduction compared to asexual reproduction
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