When a 4-year-old child has an erection, we can most likely assume:?

What effect does fluid movement in the cochlea have on the basilar membrane?

Recombination frequency is the number of recombinant offspring divided by the total number of offspring. if 300 of 500 offspring are of the parental type, what is the recombination frequency? two digit answer only!

What problem do larger cells need to overcome in order to exist?

What is the main source of the energy required to change water from a liquid to gas phase

In a plant cell, DNA can be found in? A. mitchondria B. the nucleus C. chloroplasts D. all of the above

Why is it important to monitor tides

Total these measurements. Your answer should indicate the proper accuracy. Include units. 22.1 L 43.20 L 86.1221 L 91.52 L

What is the biological importance of chlorophyll

What is the difference between the key words "trait" & "allele"?

A cuticle occurs on the surface of organisms of many phyla and appears to be an advantageous feature. why have higher organisms not retained this structure?