The second phase of general adaptation syndrome (gas) is characterized
by alarm phase, the stage of resistance and the exhaustion stage. The gas stage gives a description of the both
the short and long term emotional and physical effects of stress. Gas elaborates the relationship between
health and stress.
Answer:
A, C, D and E are correct.
Whales did evolve from hoofed land-dwelling mammal ancestor, Pakicetus.
The nostrils moved from the front to the top of head to help them breathe while most of their body is submerged in water. As whales became aquatic, they used their tail more and more and the hind limbs became useless and vestigial. The skull became elongated over time because this design helped them be more aerodynamic in water and helped them evolve echolocation.
Explanation:
B. is incorrect because whales are mammals too.
F. is incorrect because their bones became more dense to help them stay submerged.
Answer:
Explanation:
In eukaryotic cells, the membrane that surrounds the nucleus — commonly called the nuclear envelope — partitions this DNA from the cell's protein synthesis machinery, which is located in the cytoplasm.
Answer:
all living beings are made up of cells.
Cell is the most basic unit of life.
All cells must come from pre-existing cells
Explanation:
those are statements from the cell theory
Give 50 subjects 500 milligrams a day.
Give 50 subjects 1000 milligrams a day.
Give 50 0 milligrams a day.
