If you follow the scientific method, you must form a hypothesis ... performing experiments.

When mosquitoes are very abundant, purple martins flock to the area and specialize on them. When mosquito populations are not large, purple martins are similarly scarce and feed on other insects. This is an example of A) community carrying capacity.

What is the process of transformation? infecting bacteria with bacteriophages copying foreign DNA into RNA adding foreign DNA to a bacterial cell causing mutations in viral genetic material

In pea plants, round seeds are dominant and wrinkled seeds are recessive. A pea plant with round seeds was pollinated with a pea plant with wrinkled seeds. The offspring produced round seeds.

Which chemical formula is a carbohydrate? a) C3H7O2N bC12H22O11 c) CO2 d) CH4

The inner planets are called terrestrial because they a. have no atmosphere b. are small and highly dense c. have Earth-like oceans d. are visible from EArth

Why is the immune system important to humans

In grafting, the plant with the root system is called the scio ncuttingrootstock, and the portion of the plant with the buds is called the cutting root stock scion.

Businesses can not operate in public land

What should be included in the thesis of a descriptive essay? A. a clear and dominant impression B. a position on a controversial issue C. a roadmap of a logical argument D. a factual sequential statement

A bacterial gene 900 nucleotides long can code at most for a polypeptide of how many amino acids?