Nitrogen fixation is carried out primarily by a. plants b. humans c. consumers d. bacteria

Which term is used to describe the variety of inheritable traits in a species? Ecosystem diversity Genetic diversity Natural selection species diversity

Which of Erikson's eight psychosocial stages is the stage in which the healthy developing child begins to plan activities and make up games?

Explain why it is important that a hypothesis be stated so that it can be modified

71. After Precambrian Time, the basic divisions of the geologic time scale, from larger to smaller, are

Which piece of laboratory equipment is more appropriate in a dissection lab in biology class than it is in a boiling water lab in chemistry class. A) tongs B) beaker C) forceps D) wire gauze mesh

A rock is classified as

Which of the following types of compounds is unlike the other three A - Wax B - Saturated fat C - phospholipid D-polysaccharide

What predictions can researchers make based on the egg viability hypothesis?

What occurs after a disturbance in primary succession?

A person driving a car applies the brakes. This produces friction, which stops the car. Into which type of energy is the mechanical energy of the car converted