How do you really know when something is alive? What's your test for deciding if something is alive? How would explain your definition of life to a child?

Multicellular organisms undergo cell specialization in order to create organization within the body. Which of the following would not be an example of cell specialization? a. pancreatic cell that produces protein-digesting enzymes. b.

When an atom gains or loses electrons, the charged particle that results is called a (n)

Why is most of the mass of the atom in the nucleus? A. Protons are located in the nucleus of the atom, and they are responsible for the mass of the atom. B.

Glucokinase and hexokinase catalyze the first glycolysis reaction; glucokinase has a higher Km. Which is true? A. hexokinase is always functional and is not regulated by negative feedback B. they are not isozymes C. glucokinase is not a zymogen D.

Which of the following taxonomic hierarchies of a domain is correct? Choose one: A. species, order, class, phylum, kingdom, family, genus B. order, phylum, kingdom, genus, class, species, family C.

If the density of an object is 5.2 g/cm and it's volume is 3.7 what is the mass

What would happen to the population of an animal if its food source were added to the food web? A - It would increase B - It would decrease C - It would stay the same D - It would fluctuate

When it is summer in Sydney, Australia what season is it in Montreal, Canada? Explain your reasoning.

How does a renewable resource differ from a nonrenewable resource? A. A renewable resource can be used only in developed countries. B. A nonrenewable resource is being used faster than it can be made. C.

Pyruvate is a direct precursor of anapleurotic reactions which produce which intermediates of the tca cycle?