This type of selection operates if individuals within a population with the smallest and largest body sizes have fewer offspring than those of average body size.

A student creates a dichotomous key to identify common household pets. What is wrong with this key? Pet dichotomous key A. Hamsters have hairy bodies. B. Goldfish don't live in cages. C.

An example of subjective information is: a. five petals b. red stem c. shrub d. beautiful leaves

What procedure would prepare agencies for a flu pandemic? a. stockpiling antiviral drugs and potential vaccinations b. training personnel in emergency response procedures c.

Mendel's F1 generation of pea plants were heterozygous. What does this mean? A. All of the offspring plants would have the recessive trait. B.

Land plants have to prevent; a) excessive growth b) drying out c) seed development

Many arthropods young do not look like adults and do not eat the same food as adults. how would this be an advantage in an environment where food is scarce

Mammals first appeared during the Cenozoic Era. true or false

Which organism is likely to live on the stump of a dead tree in a cool, moist, shady forest? A) beaver B) cactus C) mushroom D) rabbit

Independent assortment of chromosomes is a result of A) the random and independent way in which each pair of homologous chromosomes lines up at the metaphase plate during meiosis I. B) the random nature of the fertilization of ova by sperm.

A carrier is a person who has