Human blood has a pH between 7.35 and 7.45. What is human blood is an example of (use the words strong or weak and acid or base)

You find pieces of fossilized seashells in a sedimentary rock. What's the best explanation for how they got there? A. they were combined with the rock through heat and pressure B.

During what phase in the cell cycle does mitosis happen

What is gene splicing used to produce

The composition of a star can be identified by A. its apparent magnitude B. the size of the star. C. the lines in its spectrum. D. the intensity of its radiation.

Which is true about autotrophs? a. They are primary producers b. They make their own food. c. They are the base of the food chain. d. All of the choices are true.

According to the central dogma, which of the following represents the flow of genetic information in cells? protein to DNA to RNA DNA to RNA to protein RNA to DNA to protein DNA to protein to RNA

Which of these are physical changes in matter

Fundamental differences in the cell, the basic unit of life, allow for the broadest classification of all living organisms into three domains: Bacteria, Archaea, and Eukarya.

What is the difference between discharge zone and recharged zone

One trait a plant can have is either red leaves (R) or brown leaves (r). Another trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has the genotype RrTt. What is the phenotype of this plant?