The cell membrane controls the cell because ...

As scientists search the universe for signs of like on other planets they are likely to focus on the presence of molecules containing which of the following elements? A) carbon B) calcium C) iron D) magnesium

A scientist counts 35 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 35 • 3^x models the number of bacteria after x hours. Graph the function. (You do not need to submit the graph).

When a substance freezes, what happens to the mass? a. The mass stays constant as it changes from a liquid to a solid. b. The mass increases as it changes from a liquid to a solid. c. The mass decreases as it changes from a liquid to a solid. d.

What is the purpose of the radiosonde?

Which of these processes occurs when you inhale? A. The diaphragm expands and thoracic volume decreases. B. The diaphragm contracts and thoracic volume decreases. C. The diaphragm expands and thoracic volume increases. D.

If the germs in a vaccine we're not dead or deactivated then the vaccine would

Water is formed when two hydrogen atoms bond to an oxygen atom. When a substance is made of two or more atoms like this, we call it A) a mixture. B) a complex. C) a compound. D) an element.

Which genotype is homozygous? a. XxTt b. XXTt c. xxTT d. Xxtt

In what organelle does the process of respiration occur

In the case of the salt NaCl, chloride (Cl-) gives up an electron that is taken by sodium (Na+), this is an example of . A hydrogen bond A covalent bond An ionic bond A non-polar molecule