Tides are a result of
a. strong winds in the equatorial regions
b. friction caused by the earths rotation
c. the gravitational attraction of the sun and moon
d. currents in the ocean

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