Answer:
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.
Explanation:
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Answer:
Due to continuous global warming, the oceans tend to gain more heat and hence the temperature rises. In the current century, the heated conditions of the oceans can be threatful for the human population. Also, the increase in the sea levels will have serious consequences on the health of mankind and their quality of life.
Answer:
Elephant Grass and Tridax are widespread weed and pest plant. Difference between Elephant Grass and Tridax:
- Elephant grass is species of grass family while Tridax is a species of a flowering plant.
- Origin of Elephant grass is Africa and now found everywhere in teh world and Tridax is native to Amrica.
- Leaf color of Elephant grass is purple while leaf color of Tridax is green and flower is of white or yellow color.
- Elephant grass reproduce through budding and seedlings while Tridax reprduce trhough pollination.
We can do brain scans and things that help us diagnose sickness
