Theories are generally accepted if:

two or more scientists find them to be true

proven beyond a reasonable doubt

published in a textbook

they are backed by one experiment

A gland in the human body secretes two hormones, one of which cause a disease called diabetes when there is a deficiency. Which organ produces the hormones.

You are a graduate student working with isolated aortic rings in a muscle bath. You measure vessel contraction (force in mN) in response to compounds that are thought to bind to G protein coupled receptors.

Synapses are able to change strength and function when a pathway is stressed, overused, or underused, such as by the intake of psychoactive substances

Why does the introduction of another herbivore into a food web possibly hurt other members of the food web?

Plants use the energy from the sun to convert A) water into sugar. B) carbon dioxide into sugar. C) carbon dioxide into water. D) oxygen into carbon dioxide.

If you had purple flowers and white flowers the bees go visit the purple flowers more, why?

The word hyponatremia derives from the words hypo ("under" or "less") and natrium ("sodium"). The word natrium is the basis for the abbreviation Na for sodium.

Prokaryotes whose cell walls do not contain peptidogly can

Which is true regarding tolerable upper intake levels (uls) ?

Which cells quickly respond to produce antibodies on second exposure to the same antigen?