Which derived character is shared by fish and frogs but not lancelets? a. hair b. four-legged locomotion c. amniotic eggs d. vertebral column

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

Amap's orientation is typically determined by an

If a checkpoint detects damaged dna, the checkpoint may