What best describes the reason why neap tides occur? A. Neap tides occur when the angle between the Earth and Sun is 90° offsetting the attraction of the Moon.
B. Neap tides occur in the fall and winter months when the Sun and Moon align obliquely to each other.
C. When the Sun and Moon are at right angles, the combined gravity is weaker producing modest tides.
D. Neap tides occur during the change of tide when there is no movement of water.

What are the seven economic and social goals?

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.