Birds, Salamanders and Sharks are all Endotherms and can manipulate their body temperatures.
Blood carries immune system cells, known as white cells or leukocytes. Some examples of white cells are phagocytes and lymphocytes.
Phagocytes ingest and dissolve pathogens, as well as strange particles or dying cells.
Lymphocytes are divided into T cells, B cells, and natural killer cells (NK). B cells produce antibodies to respond to foreign cells, T cells attack pathogens using enzymes and other non-antibodies responses, while NK cells combat tumors and cells infected by viruses.
Phenotypes are the physical makeup of a living thing and genotypes are the genetic makeup of the living thing
Answer: D. Extinctions occur at higher rates during times of ecological stress when populations and species are poorly adapted.
Answer:
B: <em>mitochondria produce the water from oxygen and the chloroplast produces oxygen from water.</em>
Explanation:
