Why does ice float

A. ice is less dense than water

B. ice has a higher pH than water

C. ice has a lower pH than water

D. ice is denser than water

Why don't males have barr bodies

Which of the following is a benefit of urban development? A. Development of economic centers B. Development on agriculture land C. Decrease in biodiversity D. Depletion of freshwater

What is mitosis? What is the importance of mitosis?

Carbon atoms have four valence electrons are they likely to react with other atoms and why or why not? A. yes but only with other stable atom B. no, because they have an even number of valance electrons do they are already stable C.

Many higher organisms must maintain a strict internal temperature. There can be serious consequences if the internal temperature deviates even slightly.

Based on its anatomy how would you expect this protist to obtain nutrition?

During which phase (s) of mitosis are chromosomes composed of two sister chromatids? a. prophase, prometaphase, metaphase, and anaphase b. prophase, prometaphase, and metaphase c. anaphase and telophase only d. all phases ofmitosis e.

How long can a person hold their breath before they pass out

10) The modality of a stimulus can be determined within the central nervous system by A) population coding. B) adequate stimulus for the sensory receptor cell. C) lateral inhibition. D) frequency coding.

How old is bone in which the carbon 14 in it has undergone 3 half lives