<span>Answer:
Macrophages- WBC that combat multi-cellular parasites.
Neutrophils- most abundant type of WBC which identifies and produces antibodies.</span>
The amount of available resources in the ecosystem must change at a predictable rate.
The mutation must occur in the egg cell
These segments of DNA that contain the code for specific proteins are called genes.
Actual coding region of DNA are called exons.
Explanation:
A segment of DNA that codes for one distinct protein is called a gene. Each chromosome carries thousands of various genes. The genetic code of the DNA ever prevails protected inside the nucleus.
a gene is a stretch of DNA. Nucleotide consists of a sugar, phosphate and a base.. Genes are organized and packaged in units named “chromosomes.” Humans have 23 pairs of chromosomes.