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

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Give the biological term for: structures that display characteristics of living organisms only within living cells

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms