Answer:
White. Although we can't see it, and it may look yellow, or sometimes orange, it is white.
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.
Yes, the the moth species Stigmella heteromelis is alive due to the presence of desired or favourable environment for their survival.
<h3>Factors affecting the presence of a specie</h3>
The moth species Stigmella will be considered alive if the environment that species of Stigmella needs for their survival is present because if the environment exist on the earth then it is possible that the moth specie Stigmella is present on this planet but if the there is no suitable environment.
Then we make the opinion that the specie of Stigmella heteromelis is not present on this planet so we can conclude that the presence of species on the basis of desired or favourable environment for their survival.
Learn more about fossils here: brainly.com/question/11829803
The heterozygous for three characteristics have 9 possible genotypes.
<u>Explanation:</u>
There are three types of genotypes. The homozygous dominant (AA), Homozygous recessive (aa) and heterozygous (Aa). Genotypes are the specific combination of alleles present in the individual. Genotypes are the genetic makeup of the cell and it is the genetic identity of an individual. Heterozygous means combination of particular alleles.
Genotypes are normally expressed in capital and small letters. When heterozygous three characteristics in genotype link with each other according to Mendel’s law produce offspring of nine different characteristics.
