Which layer of the atmosphere do airplanes reach? A. Troposphere B. Mesosphere
C. Thermosphere
D. Stratosphere

Drag each label to the correct location on the image. g organisms adopt different strategies and structures to make sure their offspring it uses. herds young into center of group produces many offspring at once to protect against high predation risk protects offspring until environmental conditions are ideal for growth coo b 13 1994 7 odos si . an . i

As a small change in a person's dna can cause a genetic disorder

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human