The tilt of the earth's axis, which essentially "turns" certain parts of earth so that some parts receive more direct sunlight
In contrast to the stratified squamous epithelium of the skin, the intestinal barrier is composed of a single layer of columnar epithelial cells However, this single layer of intestinal epithelial cells is made of diverse cell types with absorptive, secretory, and immune function
Answer: Option C, D, E and A
Explanation:
Sympatric speciation is the evolution or isolation of new species from the original population of species occupying the same geographic area. It is also due to sexual selection of mates leading to reproductive barriers. A plant with extra set of homologous chromosomes is an example. Sympatric speciation is due to isolation of new species from the population of species who arise from common anscetor.
Answer:
Eutrophication is an excess of
<u>plants</u><u> </u><u>and algal growth</u><u> </u>often caused by run-off from lawns or
farms that wash excess fertilizer into rivers or coastal waters.
plant.
