The graph represents what has happened over an 8 year period, when non-native Nile perch were introduced to Lake Malawi in Africa. Based on the data, which statement is true?

A) The Nile perch is competitively excluding the pike cichlid.

B) The Nile perch and Pike cichlid probably do not compete for food.

C) There is probably commensalism between the Nile perch and the pike cichlid.

D) The Nile perch and Pike cichlid probably occupy different ecological niches.

What are some aquatic organisms that live in cold water temperatures?

Which is required for sexual fissiondiploid cell productionmeiosis

Two male mice, which we will call male a and male b, are both phenotypically normal. male a was from a litter that contained half phenotypically normal mice and half dwarf mice. the mother of male a was known to be homozygous for the normal igf2 allele. male b was from a litter of eight mice that were all phenotypically normal. the parents of male b were a phenotypically normal male and a dwarf female. male a and male b were put into a cage with two female mice that we will call female a and female b. female a is a dwarf and female b is phenotypically normal. the parents of these two females were unknown, although it was known that they were from the same litter. the mice were allowed to mate with each other, and the following data were obtained: female a gave birth to three dwarf babies and four normal babies. female b gave birth to four normal babies and two dwarf babies. which male(s)mated with female a and female b? male a with both females male a with female b, and male b with female a male a with female a, and male b with female b could not be determined male b with both females