Internal gestation followed by live birth is an evolutionary development most likely driven by which of the following ?
A. The need to give birth and reproduce on dry land where eggs could dry out
B. The inability of eggs to acquire nutrients to grow complex animals
C. Environmental conditions caused eggs to over absorb dangerous molecules from the environment. the answer ITS NOT C*
D. The threat of predators to eat eggs

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

What is true of sea slugs in these orders