C. adaptation is a direct result of natural selection
Because the animals and plants and insects and fungus could be more close
Answer:
Epigenetics.
Explanation:
Epigenetics is the study of phenotypic changes which are heritable but not related to changes in the DNA sequence. It is influenced by several factors including the environment.
An example of epigenetics is DNA methylation: addition of methyl group to some part of the DNA that prevents that part from being expressed. Other examples include history modifications.
In summary, Epigenetics describes inheritance through other mechanisms than through the DNA sequence.
Answer:
Four major components
Explanation:
A- There are 4 major components of the blood.
1- Red Blood cells 45% of blood portion
2- White blood cells make up to 1% of blood proportion
3- Platelets less than 1% of the blood portion
4- Plasma 55% of the blood components
B- platelets are responsible for initiating the clotting process.
C- pathogens can enter into the body through airborne particles, skin contact, through food and body fluids.
