What creates the magnetic field in an electromagnet?

A electric current through a straight piece of metal

B magnetic fields around a straight wire

C electric current through a wire coil

D all of these

Which statement is FALSE about the motor neuron to muscle activation sequence? Group of answer choices Glutamate binds to glutamate receptors on the cell body of the lower motor neuron.

Contact with infected cats and their feces is the only mode of transmission of Toxoplasma to humans. Contact with infected cats and their feces is the only mode of transmission of Toxoplasma to humans. True False

Which pair of factors determines the density of ocean water?

Salinity of ocean water is only determined by the temperature of the water

How did researchers prove that some genes needed for tooth development are still present in chicken and that all it takes for teeth-like structures to be formed is the expression of a regulatory gene

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a) psychiatry b) physics c) botany d) biology

When evaluating your resources for authority, which of these question would you ask? A. Is the material too general, too technical, or just right for my needs? B. How recent is the information? C. Has this author been cited in other resources?

Which of these pairs is in Kingdom Fungi? A. mushrooms and bacteria B. diatoms and water molds C. mushrooms and yeast D. protist and virus

What is ne function of the smooth endoplasmic reticulum?

What are the distinguishing features of club mosses, whisk ferns, and horsetails? how are these plants different from ferns?