Answer:
The protists refer to the unicellular eukaryotic species, which comprise algae, fungi, and protozoa. Of these some are autotrophs and some are heterotrophs. They exhibit the tendency to survive in aquatic surroundings because of their feeding habits.
In older approaches, protists are categorized on the basis of their morphology. However, by using novel approaches like molecular genetics, they are being categorized on the basis of their genetics.
Answer: Brainstem
Explanation:
The brain stem controls the flow of messages between the brain and rest of the body. There is no requirement of conscious mind for the basic functions of the body.
These functions are breathing, swallowing, heat rate, blood pressure. It takes place even when the person is sleepy, there is need to be awake.
These are the basic functions of the body which is required for the survival of organism.
Answer:
The correct answer is - damaged, effector organ, neurilemma, damage, distance, cell body, decreased.
Explanation:
PNS axons are prone to cuts, and other types of injuries. A damaged axon can regenerate if the effector organ remains intact and a critical amount of neurilemma is found.
The degree of success of these axons regeneration depends upon factors that are (1) the amount of damage, and (2) the distance between the site of the damaged axon and the cell body it innervates The possibility of repair is reduced with an increase in either of these two factors. Neurolemmocytes play an active role in regeneration
<span>The answer is columnar
epithelium. This type of epithelium with tall columnar cells is adapted for absorption
and is also protective. The epithelium of the proximal convoluted tubule has microvilli
that increase the surface area for reabsorption of water and minerals back into
the bloodstream. </span>
