Why are identical twins always the same gender?
A. They have the same DNA.
B. They have the same parents.
C. They grew in the same uterus.
D. They were formed by two identical sperm.

Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

What does the positioning of transcription factors determine?