Master genes that affect development tend to be highly ____; therefore, similarities in patterns of embryonic development reflect shared ancestry that can be evolutionarily ancient.

Examples of short-day plants are:a

poinsettia. b. florist's chrysanthemum. c. spinach. d. black-eyed Susan. e. both poinsettias and chrysanthemums.

When do homologous chromosomes undergo recombination?

a. during anaphase b. during prophase c. during telophase d. during metaphase

About 1,500,000 bacteria are found in 1 milliliter of water of coastal ocean. How many bacteria will be there in 100 milliliters of water?

a-1.5*10^4 b-1.5*10^5 c-1.5*10^6 d--1.5*10^7 e-1.5*10^8

A group of population members all of the same age is called a ________.

A. species B. cohort C. tribe D. deme