Macroevolution<span> means major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types by transcending the boundaries of a single species.
</span>Microevolution happens when populations change in small ways over time.
Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.
A predator-prey relationship tends to keep the populations of both species in balance. This is shown by the graph in Figure below. As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well.
Answer:
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Explanation:
Answer: Option E) is mainly a consequence of blood pressure in the capillaries of the glomerulus.
Explanation:
The nutrients-rich blood is enters the glomerulus of the kidney by renal artery. As it circulates through the capillaries of the glomerulus the blood pressure in the capillaries of the glomerulus forces water, urea, nitrogenous compounds, glucose etc to be filtered into the bowman's capsule.
This process of filtering materials from the glomerulus into the bowman's capsule is called ultra filtration
