Answer:
B) sympathetic nervous system
Explanation:
The sympathetic nervous system controls the way the body quick involuntary response to harmful or stressful situations. A rush in hormones rapidly occur to quicken the body's alertness and heart rate to release extra blood to the muscles
It's route of Expression starts with the amygdala sending a distress signal to the hypothalamus which sends activation signals to the sympathetic nervous system via the autonomic nerves to the adrenal glands which help pump the hormone epinephrine (also known as adrenaline) into the bloodstream.
Take one gene at a time
B.ABC
A. abc
<span>Wax is a simple form of lipid
molecule. It consists of a long-chain of alcohol and a fatty acid. Many of the
natural occurring wax found in nature are used as ingredients for products
found in stores like ointments, hand cream, and cosmetics.
Plants have
naturally occurring wax on their leaves and stems; these serve as coatings to
prevent them from losing excess water. Other forms of wax found in nature are beeswax,
used by bees to make their cones for honey and eggs; sperm whales have
spermaceti wax found in their blubber; and carnuba wax, is an ingredient
commonly used for car waxes, commonly found in Brazilian palm trees. </span>
Answer:
Examples:
- Short-term adaptation: feedback inhibition
- Long-term adaptation: regulation of gene expression
Explanation:
Feedback inhibition is a mechanism where the product of a chemical reaction is utilized to modulate its own subsequent synthesis. In bacteria, feedback inhibition allows regulating different metabolic pathways in response to environmental conditions by modulating enzyme activity through enzyme reaction products. Moreover, bacteria may also respond to environmental inputs by long-term changes in gene expression. For example, bacteria contain transcription factors activated during stress, which are able to activate the transcription of particular genes into messenger RNAs (mRNAs) that would subsequently be used to generate particular enzymes by the process of translation. These transcription factors may bind to specific DNA motifs in order to promote transcriptional activity, thereby regulating the production of the corresponding enzyme.
