Neutral variation is supported by the observation that changes in the third position of codons are not subjected to natural selection because those
changes have no effect on the sequence of amino acids in the protein.

Is this true or false???

The development of_ factored in the development of complex organisms.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Which organelle breaks down sugar molecules that supply energy to the cell ?