1. which one lived in antarctica earlier, the labyrinthodont, the lystrosaurus, or the duck-billed dinosaur? explain.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell