Answer:
1-They have their own DNA, which is separate from the DNA found in the nucleus of the cell. 2- both organelles use their DNA to produce many proteins and enzymes required for their function. 3- A double membrane surrounds both mitochondria and chloroplasts, further evidence that each was ingested by a primitive host.
Explanation:
Answer:
Mutations rarely occur
Explanation:
Mutations are genetic changes, i.e., alterations in the DNA sequence. Generally, mutations have deleterious effects, but there are exceptions where mutations may confer an adaptive advantage in a given environment. Mutations are often deleterious, and thereby these genetic changes are rare events. In consequence, mutation rates, i.e., the frequency by which new mutations arise in an organism over time, are generally very low. Finally, mutations that arise only in germ cells can be inherited from a generation to the next generation, while somatic mutations cannot be inherited.
The <u>adrenal gland</u> releases a torrent of hormones, such as epinephrine and norepinephrine as the fight or flight response when a person is stressed or scared.
<h3>What are adrenal glands?</h3>
The adrenal glands are two small organs responsible for secreting hormones such as cortisol, adrenaline or noradrenaline into the bloodstream.
<h3>Characteristics of adrenal glands</h3>
- They are responsible for producing hormones that help regulate metabolism, the immune system, blood pressure, the response to stress and other essential functions.
- The main hormones secreted by the adrenal medulla include epinephrine (adrenaline) and norepinephrine (noradrenaline), which initiate the fight or flight response.
Therefore, we can conclude that the adrenal glands release certain hormones in response to stress, some of which are vital for survival.
Learn more about adrenal glands here: brainly.com/question/8947015
Milk can’t really be digested
