What is a phylogeny?

A. An outdated system of classification

B. An evolutionary history

C. A grouping of organisms

D. An organism's appearance

Which statement describes decomposers?

The seeds of plants contain

In a living organism, what is an organ? functional unit, or building block, of all organisms; smallest unit that can carry on the activities of life the shell or skin of an organism a structure composed of a number of tissues that work together to

What are three freshwater environments

What is the function of the spliceosome? A-The spliceosome transcribes mitochondrial and chloroplast genes. B-The spliceosome removes the introns and joins the exons to form the mature transcript.

What is true for an amoeba, a clock, or both.

The genes on a chromosome were represented as abcdefgh. after chromosomal breakage the order was found to be abcefgh. which type of change has occurred in chromosomal structure

The failure of homologous chromosomes to separate during meiosis is called a. skin disorders b. translocation. c. nondisjunction. d. Down syndrome.

As the wavelength increases, the frequency (A) decreases and energy decreases. (B) increases and energy increases. (C) decreases and energy increases. (D) increases and energy decreases.

The most obvious source of gene flow into any population is A) Emigration B) Immigration