All living organisms on earth are similar because they:
a. share the same sequence of nucleotide basis.
b. are assembled from a code found in nucleic acids.
c. are organized by a code based on unsaturated fatty acids.
d. contain the same number of lipids.

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative