Answer:
The correct answer is - option B.
Explanation:
Prior to third trimester mother feels heavier breathing and experience difficulty in breathing normally that is due to the head of the baby present under the one of the rib and pressure on the diaphragm.
This get less due to the shift of the baby as the baby stat to move further into pelvis. Moving of the head of the bay towards down into pelvis helps in making breathing easier.
Thus, the correct answer is - option B.
In
general, hormones that bind to plasma membrane receptors cannot pass through
cell membranes.
<span>
Membrane
receptors or cell surface receptors are receptors that are located in the
membranes of cells and usually are integral membrane proteins. The
extracellular molecules like hormones, neurotransmitters, cytokines, growth
factors are ligands that induce changes (signal cascade) within the cell.</span>
Answer:
C)Carbon dioxide is released during photosynthesis and used during cellular respiration
Answer:
This statement is true
Explanation:
Ability of an individual to survive and reproduce in its environment; increased by adaptations. Natural selection acts on individuals but evolution occurs in populations. Natural selection acts on phenotypes, but evolution changes allele frequencies. Natural selection can only act on traits that have a genetic basis.
Evolution is the gradual genetic change of living organisms over time due to ecological pressures they experience. Individuals in an interbreeding population share in a common gene pool. ... (2) in small populations, gene frequencies can be changed via random sampling -- this is known as genetic drift
