Because the can receive blood from any person with blood type of O,A.B and AB.
Answer:
A, chlorophyll; B, ATP is the correct answer.
Explanation:
I took the quiz and got it right.
Answer: Mutation. The allelic variations that make evolution possible are generated by the process of mutation, but new mutations change gene frequencies very slowly, because mutation rates are low. Assume that the gene allele A1 mutates to allele A2 at a rate m per generation and that at a given time the frequency of A1 is p.
Explanation:
Answer:
Autonomic regulation of heart is via two reflex centers that are found in medulla oblongata
Explanation:
Medulla oblongata contain long stem that makes the upper part of brain case and this is a cone shaped structure which is responsible for autonomic regulation like controlling heart rate,vomiting,respiration,breathing etc.
The heart rate is controlled by autonomic nervous system that are mainly sympathetic and parasympathetic nervous system that releases hormones like catecholamine (epinephrine and non epinephrine) which helps in controlling the heart rate.
Medulla oblongata mainly connects the brain with the spinal cord that are responsible for responsible for the autonomic functions which contain -
Controlling the ventilation via signalling system regulated by chemo receptors which detects change in acidity of the blood.
Acts on cardiovascular centers.
Controlling the reflex centers like vomiting,coughing,sneezing,swallowing etc.
The temperature of tropical areas relative to places more distant to the equator. Another reason why is higher nutrient cycling, which is also an effect of higher temperature.
