Sea otters play an important role in maintaining the sea urchin population in the kelp forest. the sea otter is known as a select one: a. keystone species. b. key species. c. checking species. d. controlling species. question 6 not yet answered marked out of 6 not flaggedflag question question text match the kelp forest organism with its place in the forest. sea otter answer 1 brittle stars answer 2 cup corals answer 3

Which of the following systems in absorbing oxygen and releases carbon dioxide

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c