Biology HN SEMSTER 1 Review

Howard and Leah conducted an experiment to test their hypothesis that male eggs of the American alligator only hatch at high temperatures. They concluded very high temperatures killed unhatched alligators. What comment(s) would you make to Howard and Leah regarding their conclusions?

• Their conclusion is supported by the data.

• They should reject their hypothesis.

• They should accept their hypothesis.

• They did not sample very many eggs.

Tags

NGSS.HS-LS4-5

In terms of the scientific method, the purpose of an experiment is to:

• Form a hypothesis.

• Test a hypothesis.

• Form a conclusion.

• Develop data.

Tags

NGSS.MS-LS2-1

By the end of prophase, all of the following has occurred EXCEPT:

• The nuclear membrane has broken down.

• Centrioles and spindle fibers have appeared.

• DNA has become more tightly coiled into rod-shaped structures.

• Chromosomes have lined up in the middle of the cell.

Tags

NGSS.HS-LS1-4

Anything to which an organism reacts is a:

• Response.

• Resolution.

• Irritability.

• Stimulus.

If a substance consists of only one kind of atom, it is a:

• Isotope.

• Element.

• Ion.

• Neutrino.

A covalent bond is formed by:

• Sharing electrons.

• Transferring electrons.

• Losing electrons.

• Gaining electrons.

Tags

NGSS.HS-PS1-1

The total number of protons and neutrons determines an atom's:

• Atomic mass.

• Atomic number.

• Order.

• Charge.

Tags

NGSS.HS-PS1-8

An atom that gains one electron from another atom has a _______ charge.

• 1+

• 1-

• 2+

• 2-

A biological molecule that acts as an acid will do which of the following in water?

• Donate a hydroxide ion to the solution.

• Remove hydrogen ions from the solution.

• Donate a proton (H⁺) to the solution.

• Remain unchanged.

Polysaccharides are split apart to form monosaccharides in a reaction known as:

• Hydrolysis.

• Dehydration synthesis.

• Monomerization.

• Polymerization.