True or False: Limiting factors can help within an ecosystem by preventing populations from becoming too large.

A. True
B. False

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals