Question 1 (multiple choice worth 5 points)

read the two statements given below.

statement 1: an alert neighbor called in the paramedics
statement 2: a stray cat entered using the pet entrance and soiled the rug

which of the following best relates the statement to the correct type of theory?

both statements are about scientific theories.
both statements are about everyday life theories.
statement 1 is about an everyday life theory, and statement 2 is about a scientific theory.
statement 1 is about a scientific theory, and statement 2 is about an everyday life theory.

question 2 (multiple choice worth 5 points)

consider the way living things are organized. what are the two levels of organization just after atoms?

tissues and organs
molecules and cells
organs and organ systems
organ systems and organism

question 3 (multiple choice worth 5 points)

which of these represents an individual form of life such as an animal, plant, or single-celled life form?

organ
organism
organ system
tissue

question 5 (multiple choice worth 5 points)

which of the following is the basic unit of life?

cell
element
nucleus
seed

question 6 (multiple choice worth 5 points)

based on the cell theory, which of the following is true?

all living and nonliving things are made of cells.
all cells are too small to be seen with the naked eye.
small organisms have smaller cells than large organisms.
large organisms have more cells than small organisms.

question 7 (multiple choice worth 5 points)

which type of molecule forms structures in cells and stores energy?

lipid
nucleic acid
protein
water

question 8 (multiple choice worth 5 points)

pam observed many small earthworms in the backyard of her house after a heavy rain. what most likely formed the earthworms?

rainwater that fell on stones
wet mud in the backyard
eggs of earthworms
mixing of air and water

question 9 (multiple choice worth 5 points)

which of the following is a characteristic of a scientific theory?

it explains how nature works.
it is based on a single experiment.
it should not be possible to replicate its results.
it should not be possible to replicate its observations.

question 10 (multiple choice worth 5 points)

which organelle captures sunlight and in food synthesis?

chloroplast
mitochondrion
nucleus
ribosome

question 11 (multiple choice worth 5 points)

plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below.

cell a: has a cell wall
cell b: has chloroplast

which statement about the two cells is correct?

both cells are plant cells.
both cells are animal cells.
cell a is a plant cell and cell b is an animal cell.
cell a is an animal cell and cell b is a plant cell.

question 12 (multiple choice worth 5 points)

what will most likely happen in the absence of a nucleus?

genetic information will not be transmitted by the cell.
energy will not be released during cellular respiration.
the cell will not store food, water, nutrients, and waste.
the cell will lose its shape and structure.