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