What animals have backbonde

Which of the following events would most unpredictably affect an ecosystem? A. the removal of one old tree B. a mutation in a native bacteria C. the annual birth of a new generation of deer D. a rainstorm that causes minor flooding.

Give an example of how obtaining oil could harm the environment

When evolution occurs through natural selection organisms that survive have

Which factor is required for genetic equilibrium? A. nonrandom mating B. small population size C. absence of genetic drift D. presence of heritable mutations

Complete the statements about the law of conservation of momentum. The law of conservation of momentum states that the total momentum of interacting objects does not .

The breakup of Pangea caused climate changes that caused organisms to adapt or die off, this occured during the Paleozoic era. true or false

Which property of DNA contributes the most to DNA ability to, replicate

A scientist conducted an investigation about the effects of diet on disease resistance in rats and made surprising observations. The mice with a genetic ear mutation seemed to show similar patterns of resistance compared to mice with normal ears.

Jim spent a hot summer day playing soccer with his friends. He was sweating throughout the day, but he stopped sweating once he went back to his air-conditioned room.

What food group does lentils belong to?