Why is a pinhead sometimes used as an analogy for the early universe? a) matter was destroyed during the big bang. b) at time zero all matter was metallic. c) at time zero all matter was contained in a very small volume. d) matter was rapidly dispersed by the big bang.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Biology ! the conversion of inorganic carbon to organic carbon by plants during photosynthesis is known as _[blank]_. filtration immigration reabsorption primary production

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d