Carbon atoms have four valence electrons are they likely to react with other atoms and why or why not?
a. yes but only with other stable atom
b. no, because they have an even number of valance electrons do they are already stable
c. yes, because they can become more stable by doing so

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring

All ova contain sex chromosomes corresponding to: x y xx xy

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.