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.
Sex cells are formed during mitosis.
Answer:
Explanation:
1- Capping occurs at the 5' end of mRNA.
2- The nucleside added is 7-methylguanosine.
3- The nuceloside is connected to the mRNA through a 5′ to 5′ triphosphate linkage.
4- The added nuceloside is modified by methylation at the nitrogen atom.
5- The mRNA is modified by methylation of ribose residues at the 2'-hydroxy position.
D. both adapted to similar niches in which gliding increased their survival
