Which of the following is not a common theory among scientists for the origin of life on Earth?

A. Self-assembly of lipids
B. The clay hypothesis: that clay could help form RNA
C. Self-sustaining synthesis of proteins could have occurred near hydrothermal vents
D. That life formed in highly saline (really salty) lakes

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction

Approximately what wavelength of light is best absorbed by chlorophyll a