A single-celled organism is found living in a deep sea vent at the bottom of the ocean in extremely hot water. If it is examined further, which of the following is most likely to be found within it?

Question

anonymous · Answer

A	It will have a cell membrane since it is likely a member of the domain Archaea and the Kingdom Protista.
B It will have a nucleus and other membrane-bound organelles since it is likely a member of the domain Eukaryota.
C It will have DNA and RNA, as well as a cell wall, since it is likely a member of the domain Bacteria.
D It will have DNA that is not contained in a nucleus since it is likely a member of the domain Archaea.

anonymous · Answer

d

anonymous · Answer

Which of the following best explains ways in which fish and mammals differ?
Answer
		Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give live birth to offspring.
		Fish are endothermic and have gills, while mammals are ectothermic and have lungs.
		Fish are invertebrates and have scales and paired fins, while mammals are vertebrates and have fur or hair.
		Fish have streamlined bodies and three-chambered hearts, while mammals are bipedal and have four-chambered hearts.

anonymous · Answer

d