The correct answer is B. Ingesting too much alcohol leads to vomiting.
Explanation:
Homeostasis is the ability of the body to resist the chemical or physical change in the body and remain in constant and steady-state for example in hot days when temperature goes above 40° Celcius our body temperature remains at 37° c with the help of sweating.
Another example is vomiting after ingesting too much alcohol because alcohol is toxic and ingesting too much alcohol produces extra acids in the stomach which irritates stomach lining that results in upset stomach and vomiting.
So by vomiting the alcohol our body reduces the toxic effect of alcohol in the body and resist the change in the body.
The answer is pronuclei. A pronuclei is the state of the
nucleus of either the sperm or the ovum after the sperm has entered the ovum
but the two nuclei have not yet fused. When the sperm enters the ovum, the membrane
of the sperm pronuclei dissolves hence leaving no barrier for the two genetic
materials to combine.
lysine residues on the histone tails of the octamer cn be activated by both acetylation and methylation patterns to influence accessibility or silencing of the genes respectiviely. for example, acetylation of H3K27 (histone 3 lysine residue 27) brings about a region of active chromatin allowing access to transcription activity while its trimethylation will cause silencing of the associated gene at that particular area (no expression of that gene)
