One hypothesis about the origin of the building blocks for life is that they werea. made inside meteors.

b. formed when lightning struck water.

c. started by the rna in the ocean.

d. brought to earth by meteorites.

In a divorce proceeding, a husband (type O) claims that his wife (type A) must have been unfaithful, since their child is type O. Could he be the biological father

In a food chain consisting of toxic soil, toxic grasses, rabbits that eat the toxic grass, and hawks that eat the rabbits, the highest concentration of toxins would occur in the

One major difference between plant and animal cells is that plant cells are the one with

Other than the transport of materials, what is another function that vascular tissue performs in a leaf?

Scientific models aid in communication about concepts and events. True or False

Which of these objects are malleable? Check all that apply. (A) tin fork and knife from a camping set (B) antique ceramic vase (C) steel pole fence post (D) marble sculpture (E) glass tabletop (F) copper coin

Once you have the Refractive Index of a glass sample, what do you do with it? Combine the elemental values of glass to find the refractive index. Calculate the molecular weight using the periodic table. Look it up in an encyclopedia.

Which anticodon pairs with the codon GAU? A) CUA B) GAU C) CTA D) GAT

Over heating an enzyme results in the enzymes loss of

A green house may be used to control temperature and carbon dioxide. True False