Unit Test — Cumulative exam Answers

25 verified answers3 views
1
Free Preview

A skin cell divides to make a new skin cell. Which component of cell theory does this best illustrate?

A
All living things are made of cells.
B
Cells are the basic unit of structure and function of all living things.
C
All cells come from other cells.
D
Cells are generated from nonliving materials.
5

Which shows the pathway of structures that sperm pass through or by to exit the body?

A
testes → urethra → glands → sperm duct → penis
B
penis → urethra → glands → sperm duct → testes
C
testes → sperm duct → glands → urethra → penis
D
sperm duct → glands → urethra → testes → penis
6

Which two words are paired correctly?

A
vertebrate, endoskeleton
B
invertebrate, endoskeleton
C
vertebrate, autotroph
D
invertebrate, autotroph
7

Brown eye color is a dominant trait and blue eye color is a recessive trait.What typically happens when someone inherits one allele for brown eyes and one for blue eyes?

A
The person has brown eyes, and brown eye color remains a dominant trait.
B
The person has blue eyes, but brown eye color remains a dominant trait.
C
The person has brown eyes, but blue eye color becomes a dominant trait.
D
The person has blue eyes, and blue eye color becomes a dominant trait.
9

Which is the control center of the cell?

A
mitochondrion
B
ribosome
C
cytoplasm
D
nucleus
11

What is the function of the immune system?

A
to move and support the body
B
to protect the body from pathogens
C
to break down food and absorb nutrients
D
to filter the blood
14

Which statement describes the general process of diffusion?

A
Molecules move from inside of the cell to outside of the cell.
B
Molecules start out unevenly distributed and end up evenly distributed.
C
Molecules start out evenly distributed and end up unevenly distributed.
D
Molecules move from outside of the cell to inside of the cell.
17

Which is an example of biodiversity contributing to the sustainability of an ecosystem?

A
A meadow covers a large area of land, providing shelter to many organisms.
B
The ocean can only support organisms that can survive salty conditions.
C
One species of plant has been growing in a field for several years.
D
Many kinds of fruit trees support a variety of birds and other animals in a forest.
18

White-tailed deer eat green plants, acorns, fruits, nuts, and twigs.Which describes the role of a white-tailed deer?

A
autotrophic omnivore
B
heterotrophic omnivore
C
autotrophic herbivore
D
heterotrophic herbivore
19

is the longest stage of the cell cycle.

Answer not available
20

Which is like armor for the cell?

A
nucleus
B
cell wall
C
cytoplasm
D
ribosome

Did you find these answers helpful?