8. A scientist noticed that the number of salamanders in ponds in Manatee County was declining. This was a(n): (1 point)
O Hypothesis
O Theory
O Observation
Control

Which of these statements are true about scientific theories and hypothesis

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.