Answer: c) central vein.
Explanation:
The liver is an organ that is present both in humans and in vertebrate animals. It secretes the bile, essential for the digestion of fats, and it also has many other functions, including the synthesis of plasma proteins, storage of vitamins and glycogen and detoxifying function. It is responsible for removing various substances from the blood that may be harmful to the body, including alcohol, making them harmless.
The liver is divided by the sickle cell ligament into two main lobes, right and left. <u>There are two other smaller lobes, the square lobe and the caudate lobe</u>.
The hepatic triads are triangular areas located at the angles of the hepatic lobules, made up of a lax conjunctive stroma. <u>They contain a branch of the hepatic artery</u> (that irrigates the liver<u>),</u> <u>a hepatic portail vein</u> (a thick blood vessel that carries blood from the gastrointestinal tract and spleen to the liver so that nutrients are metabolized<u>)</u> and <u>a bile duct</u> (transports bile into the small intestine). Therefore, it does not contain a central vein.
You are studying two species of tree frog. The two species are found on two different islands, separated by 200 km of ocean water. Species A lives on very light-colored rocks and species B lives on dark-colored trees. Which process is most unlikely to be affecting allele frequencies in the population?
a. Gene flow between populations
b. Genetic drift
c. Natural selection
d. Mutation rates
Answer:
a. Gene flow between populations
Explanation:
Gene flow between two populations occurs when one or a few members of one population migrate into the other and interbreed in the new population. This process adds some new alleles to the new population. In the given example, two populations of a tree frog are separated by 200 km of ocean water. Therefore, the frogs of one population would not be able to migrate into the other population and interbreed. So, gene flow can not affect the allele frequencies of these two populations.
A group of like cells together is called tissues
Which function do the integral proteins in the phospholipid bilayer perform C
