Which of the following is one observation that Charles Darwin made regarding variation?

Sweating cools the body through _ freezing condensation melting evaporation

Why is it important for matter to be recycled in ecosystem and not be created or destroyed?

You have a flower that is homozygous dominant for the red flowers and a flower that is homozygous dominant for the white flowers. When you cross fertilize the two flowers you get offspring with pink flowers.

Na + leaks through neuron membranes faster than K + because of the properties of the non-gated leak channels. a. True. b. False

Which change in the climate of a location would most likely cause the greatest increase in chemical weathering of local bedrock?

A wave hits an object as shown Which kind of wave interaction is shown? absorption Diffraction Refraction Reflection

Which colorimetric test could be used to assay a person's urine and what color change could indicated mild diabetes? biuret or benedict

Observing animal tracks is an example of direct observation, which is used to estimate population size. True or False

How do valley glacier forms Someone answer this now!

11. Climate is best described as A. the daily weather as predicted by a meteorologist. B. the areas only where the temperatures drop below freezing. C. the long-term average of weather variations in a specific area. D.