Birds almost always migrate

A: during the day

B: at night

C: on cloudy days

D: at noon

Reactive oxygen species (ROS) are unstable, or reactive, compounds that result from the partial reduction of oxygen. ROS can cause damage to molecules, including membrane lipids and nucleic acids, and may be associated with some diseases.

Joshua is holding a book near shoulder-height. Use the drop-down menus to indicate what happens to the gravitational potential energy of the book if he places it on each shelf. shelf A shelf B shelf C Joshua is holding a book near shoulder-height.

Why were health care reform activists like dr. margaret flowers angry with sen. baucus during the committee hearings? do you feel their protests were justified? what could sen. baucus have done differently? what might have been the outcome?

What are the limitations of using an agarose gel to determine if you are homozygous or heterozygous with respect to the D1S80 locus?

What is does H2o stand for

I'm confused on how to answer this. Provide an example of possible succession of insects that would be found on the body of a dead squirrel. include in your answer: Which insect is usually first to arrive on the dead body? Explain your reasoning.

How do bacteria protect their own dna from the restriction enzymes they produce?

All ions are atoms with a positive charge. negative charge. charge. neutral charge.

What is the fossil record?

When researchers are measuring plant productivity, they usually harvest and measure above-ground biomass. But with grassland plants, it is common to find that most of an individual's biomass is in its root system.