Answer:
D) as we travel southward from the North Pole.
Explanation:
Species richness is the number of different species in a particular community. If we found 30 species in one community, and 300 species in another, the second community would have much higher species richness than the first.
Communities with the highest species richness tend to be found in areas near the equator, which have lots of solar energy (supporting high primary productivity), warm temperatures, large amounts of rainfall, and little seasonal change. Communities with the lowest species richness lie near the poles, which get less solar energy and are colder, drier, and less amenable to life. This pattern is illustrated below for mammalian species richness (species richness calculated only for mammal species, not for all species). Many other factors in addition to latitude can also affect a community's species-richness.
Geologists can 'read' rock layers using relative and absolute dating techniques. ... Relative dating arranges geological events, and the rocks they leave behind, in a sequence. The method of reading the order is called stratigraphy (the rock layers are called strata).
They all require oxygen for respiration. All cells must go through cellular respiration.
The answer to this question can be multiples
Hdl has a high proportion of protein, which makes it the heaviest (most dense) lipoprotein.
The five main subgroups of lipoproteins include high-density lipoprotein (HDL). All fat molecules (lipids) are transported throughout the body by lipoproteins, complex particles made of several proteins that float outside of cells and move throughout the body's fluids.
Through both direct and indirect channels, HDL mostly delivers cholesterol to the liver or to organs that can produce steroid hormones, such as the testicles, ovary, and adrenal glands.
Scavenger receptor BI (SR-BI), an HDL receptor that facilitates the selective uptake of cholesterol from HDL, is one type of HDL receptor that removes HDL. The indirect pathway, which is mediated by the cholesteryl ester transfer protein, is likely the most significant one in humans (CETP).
Following conversion into bile acids, the cholesterol supplied to the liver is either directly or indirectly excreted into the bile and, consequently, the intestine.
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