Aboy drops an ice cream cone on a cement sidewalk on a hot, sunny day. the ice cream begins to melt soon after hitting the sidewalk. what causes the ice cream to melt?

In the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material