Which of the following is NOT a major type of marine ecosystem? a. estuary
c. surface zone
b. intertidal area
d. polar ice
PLZ HELP I HAVE 2 HRS

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Which are reasons cells undergo cell division?