Ships that use ballast water are not in danger of introducing invasive species into aquatic habitats.
true
false

Classify the structures as homologous or analogous, depending on their structure and function.

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous