For natural selection to occur, an adaptive trait ____.
A. must be physical
B. must be physiological
C. must be psychological
D. must be heritable
E. cannot be heritable
Answer: D
Environmental & Atmospheric Sciences
You might also like to view...
Small streams with no tributaries are:
a. first order b. second order c. third order d. trunk streams
Environmental & Atmospheric Sciences
Tropical _______________ climates are home to drought-resistant trees
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
Examples of areas in Europe subject to sea flooding due to low elevation include Venice and:
A) the Netherlands' coast B) Scotland's interior C) Athens D) Switzerland
Environmental & Atmospheric Sciences
A(n) ____ thermometer consists of two different pieces of metal (usually brass and iron) welded together to form a single strip
a. thermograph b. bilateral c. electrical d. thermoresistant e. bimetallic
Environmental & Atmospheric Sciences