The thin, tubular bundle of nervous tissue that extends from the brainstem is called the

Flower position, stem length, and seed shape are three characters that Mendel studied. Each is controlled by an independently assorted gene and has a simple dominant recessive relationship as follows: axial A / terminal a round R / wrinkled r tall T

Gregor Mendel called the generation created by crossbreeding the parental generation the (A) second parental generation. (B) cross filial generation. (C) second filial generation (D) first filial generation.

Plants absorb nitrogen in the form of nitrate ions and ___ ions

Insufficient secretion of antidiuretic hormone produces this condition: (A) Acromegaly (B) Goiter (C) Thyrotoxicosis (D) Diabetes insipidus

A person flying in a plane over Easter island notices that the water around the island appears bluer than the surrounding water. What property of light waves causes the water to be a different color to the observer? 1. Absorption 2. Diffraction 3.

If you study ecology what are you studying

Homologous structures are structures found in one species that have the same basic anatomical structure and embryonic origin as those found in another species.

Why do you think humans have two sets of 23 chrosomes

Predict what might happen to the dark moth population in the light forest, if the simulation ran for a longer period of time.

The gas that shows the most variation in concentration from place to place and from time to time in the lower atmosphere is