How did cyanobacteria aid the evolution of complex life on land? do you think cyanobacteria are as significant to this process today as
they were during precambrian time?
need asa its timed

How do cells grow and reproduce to maintain homeostasis?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. kinetic energy. b. electrical energy. c. mechanical energy. d. chemical energy.