Answer:
How do mass and speed affect kinetic energy?
Explanation:
Edg 2020
Answer:
CLOSED.
Explanation:
Stomata are found in epidermal layers in green aerial parts of plants, especially leaves. They occur mainly on the lower surface of dicotyledonous leaves, although on monocotyledonous, they are found on both surfaces. Intercellular air spaces found throughout the leaf are linked to stomata.
Stomata permits plant uptake of carbon dioxide, which is a necessity for photosynthetic processes. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.
Therefore, it can be said that Stomata adjust temperature, staying closed when temperatures are hot and dry.
Answer:
d They usually have certain special functions
Explanation:
a) They can all turn into the same kind of cell needed - this is false. Cells in a multi cell organism such as humans cannot turn to any type of cell, this functionality is called pluripotency, and only exists in specialised cells called stem cells. These cells are present early in development, and in some tissues where cells are replaced frequently, like the cells of the gut.
b) They are all identical - this is false. Although they all carry the same genetic information, the cells in a multicell organism are usually very different, carrying out different functions. E.g. the cells of the skin are very different from the cells of the blood.
c) They are prokaryotic cells - this is false. All prokaryotic cells are single celled organisms, only eukaryotic cells can form part of multi cell organisms
d) They usually have certain special functions - this is true. Cells in a multicell organism usually perform different functions in order to contribute to the entire organism. For example, the function of the cells in the heart is very different from the function of the cells in the brain.
Answer:
Yes
Explanation:
The cerebral cortex, the largest part of the brain, is the ultimate control and information-processing center in the brain. The cerebral cortex is responsible for many higher-order brain functions such as sensation, perception, memory, association, thought, and voluntary physical action.
