"C. Organisms' characteristics are carried
<span> on DNA.</span>" would be the best fit, although this still isn't really the core idea behind natural selection, which is that animals survive based on how "fit" they are for their environment.
So the following is the answer to you following choices and I hope you are satisfied with my answer.
#2 by making new habitats available to them.
#3 convergent evolution.
#4 a species evolves at a slow, steady pace.
#5 <span> Global temperatures drop several degrees after several massive volcanic eruptions.</span>
The correct answer is D. The flavor of carrots grown under different conditions is compared.
Qualitative observation is the observation which deals with describing the quality of a thing by observing its properties with our senses, without discussing the numerical values. Examples of qualitative observations are observing colors, texture, and shape, size flavor of a thing. Therefore, the comparison of flavor of carrots grown under different conditions is a qualitative observation.
Excercise increases the rate at which energy is needed from food. This increases the need for oxygen and food in the body. This is why your pulse rate and breathing rate increase with exercise.
