Answer:E. Down-regulation
Explanation:Cells typically up or down regulate depending on the concentration of a hormone levels. When there is a excessive concentration of a hormone in the blood stream, the cell decreases the number of receptors reducing the interaction with that hormone, Also, when there is excessive hormone reduction, the target cells activate to increase their number of receptors.
Down regulation occurs by the the deactivating or degrading of target cells to reduce the number of receptors due to their sensitivity to a particular excess hormone.
Cerebrum controls the higher brain function such as speech, writing, etc. The cerebellum controls the involuntary stuff such as your digestive track, breathing, etc. The other 2 control a branch of other stuff. C is your answer.
Answer:
The correct answer is -
1. stomata - openings that are most frequently found on the underside of a leaf.
2. Palaside layer - the layer in the leaf that is the primary spot of photosynthesis.
3. spongy layer - the layer within the leaf that has many holes and spaces for gases to exchange.
4. cuticle - the waxy protective coating on leaves.
5. epidermis - the outer layer of cells on leaves that has a waxy coating.
Explanation:
The structure of leaves has various layers and structures in it for specific functions.
Epidermis - it is the outermost protective layer of the leaf that has a waxy coating known as the cuticle.
Cuticle - it is a waxy coating that provides protection to the plant leaves and prevents moisture to move out of the cells.
Palisade layer - it is the closely packed photosynthetic pigments chlorophyll layer known as the primary spot for photosynthesis.
Spongy layer - it is the layer that has loosely packed photosynthetic cells and allows the gaseous exchange as their many small holes and spaces.
Stomata - Stomata is the holes or openings that are most frequently found on the underside of a leaf that allows for gaseous exchange.
Its the mitochondria but I dont have an analogy
