Which of the following correctly describe a sea urchin?

select all that apply.

cnidarian
chordate
invertebrate
echinoderm
deuterostome

Which example would the nurse consider to be a part of systems thinking theory?

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

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.