What is the energy source for almost all life on earth

If an outdoor runner develops a headache, feels tired, and has an elevated heart rate, what is the most probable cause? A. Insufficient calories B. Overhydration C. Dehydration D. Lack of protein

A scientist discovers a new species of fungus that introduces genetic diversity during reproduction by creating a diploid zygote. This new species cannot belong to which modern phylum of fungi? Zygomycota Glomeromycota Chytridiomycota Deuteromycota

What is the primary function of antibody-mediated immunity?

Which term describes a pure substance that is made up of only one type of atom?1) matter2) rock3) compound4) element

A measurement of a star's brightness is called

Angus is accused of having a restriction of range problem in his evaluations of coworkers. what is most likely to be true about angus?

Why might it be advantageous to use nonrenewable resources over renewable resources?

If a species can adapt to a changing environment or it's descendents will survive

Which of the following is an interaction in which one organism benefits and the other is harmed (+/-) ?

Which type of fossil is bone or tooth that have been covered by layers of sediment and preserved into stone. Body Fossil Mold Fossil Resin Fossil Trace Fossil