PLEASE HELP TAKING TEST NOW! What happened to the Arctic Ocean during the past 40 years? (1 point) O It has gained more sea ice.
o It has become less salty.
It has grown smaller.
It has become warmer.

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?