This is true The prettiest smiles

Hide the darkest secrets

The most beautiful eyes

Cried the most tears

The kindest hearts

Felt the most pain

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Describe the two types of vascular tissue