Why are hydrothermal vents capable of nurturing deep-sea life?
A.
They warm the water, creating a favorable temperature range for deep-sea life.
B.
They provide migratory routes for underground bacteria to emerge on the sea floor.
C.
They provide nutrients from Earth’s surface, which the deep-sea creatures can feed on.
D.
They provide the right conditions for the formation of chemicals, which bacteria can use as a source of energy.
E.
They provide migratory routes for vent creatures to emerge onto the sea floor, which deep-sea life can feed on.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

In a hypothetical breed of dogs, coat color is controlled by two genes. there are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. consider the following crosses. cross 1: black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. f1 males and females are all black. when f1 are intercrossed, f2 males and females are black or brown. cross 2: black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. f1 males are black, f1 females are gray. when f1 are intercrossed, f2 males and females are black, brown, gray, or tan. cross 3: silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. f1 males and females are all gray. when f1 are intercrossed, f2 males are black, brown, gray, or tan, f2 females are cream, gray, silver, or tan. select the correct statements regarding the mode of inheritance of the coat color genes. a) both genes are x-linked. b) both genes are autosomal. c) one of the genes modifies the expression of the other gene. d) each gene has an additive effect on the intensity of coat color. e) each gene independently specifies three colors. f) one of the genes is autosomal, and the other is x-linked.

Explain the significance of meiosis in sexual reproduction