Keystone Biology

All are characteristics prokaryotic and eukaryotic cells share EXCEPT

• Cytoplasm

• Ribosomes

• Nucleus

• Plasma membrane

Of the selections provided, which is the largest level of organization found in the biosphere?

• Organelle

• Biome

• Ecosystem

• Organism

Looking within an organism, which selection shows organization from smallest to largest?

• Cell, tissue, organ, organ system

• Organ system, tissue, cell, organelle

• Cell, organelle, organ, organ system

• Tissue, cell, organ system, organelle

Tags

NGSS.HS-LS1-2

A well-tested explanation that unifies a broad range of observations

• hypothesis

• inference

• law

• theory

Tags

NGSS.HS-ESS1-2

The ability of an organism to maintain an internal steady state is called

• metabolism

• homeostasis

• respiration

• thermoregulation

Tags

NGSS.HS-LS1-3

All are characteristics of life EXCEPT

• Ability to move

• Obtain and use energy

• Ability to reproduce

• Grow and develop

Tags

NGSS.HS-LS1-4

If a compound contains carbon, hydrogen, oxygen and nitrogen, what kind of organic molecule is it?

• carbohydrate

• lipid

• protein

• nucleic acid

When a molecule contains atoms that share electrons, they have __________ bonds.

• hydrogen

• ionic

• van der waals

• covalent

Tags

NGSS.HS-PS1-1

When an overall neutral compound has charged regions, it is considered

• nonpolar

• polar

When the positive end of a water molecule is attracted to the negative end of an adjacent water molecule, what kind of bond is created?

• ionic

• hydrogen

• covalent

• nonpolar