Unit Test — Unit test Answers

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3

Examine the cross-sectional slice of a stem of a mint plant.

Question illustration
A
Mint is a dicot.
B
Mint is a monocot.
C
Mint is an angiosperm.
D
Mint is a bulb plant.
5

In which environment is someone least likely to find fungi growing?

A
around the sides of a hot tub
B
on a log in a tropical forest
C
beneath a mat in a shower
D
under a rock in the desert
6

Which is a use for peat moss?

A
purifying water
B
putting out fires
C
providing fuel
D
curing blurred vision
7

Scientists have different methods to help clean up oil spills in oceans, including the use of strong chemicals and the use of bacteria. What is an advantage of using bacteria instead of chemicals?

A
Removal of the oil by bacteria is a slow process.
B
Bacteria likely cause less disruption to the natural environment.
C
Bacteria do not produce oxygen that could harm the oceans.
D
Removal of the oil by bacteria is more expensive than chemical methods.
8

Which two characteristics do seedless vascular plants have that nonvascular plants do not have?

A
They have phloem and true stems.
B
They have true roots and use spores to reproduce.
C
They live in moist environments and have xylem.
D
They have phloem and use spores to reproduce.
9

Bees, which are known for aiding in pollination, help with which process?

A
enabling pollen to grow fruit to encase the sperm and egg
B
enabling pollen to grow a tube to transfer sperm to the egg
C
transferring pollen from the anther to the pistil
D
transferring pollen from the ovule to the ovary
10

This table shows four species of plants, with descriptions. Which species are most likely vascular?

Question illustration
A
the bracken and the bog groove moss
B
the thallose liverwort and the bog groove moss
C
the bracken and the lemon tree
D
the thallose liverwort and the lemon tree
11

The diagram shows a bacterium.

Question illustration
A
X: DNAY: Cell membraneZ: Ribosomes
B
X: FlagellaY: DNAZ: Cytoplasm
C
X: FlagellaY: RibosomesZ: Capsule
D
X: DNAY: CytoplasmZ: Cell wall
12

Georgette drew a diagram to compare chytrids and sac fungi.

Question illustration
A
Have reproductive cells with flagella
B
Contain cell walls
C
Release chemicals to break down food
D
Lack hyphae
13

The diagram shows an animal-like protist.

Question illustration
A
a sarcodine because it has a nucleus
B
a sarcodine because it has a pseudopod
C
a parasite because it has cilia
D
a parasite because it has a flagellum
14

Kyra is making a diagram to compare animal-like protists and fungus-like protists.

Question illustration
A
are multicellular
B
are heterotrophs
C
reproduce using spores
D
are decomposers
15

What are the male and female reproductive structures found in flowers?

A
male: stamen; female: pistil
B
male: pistil; female: stamen
C
male: sepal; female: petals
D
male: petals; female: sepal
16

Which statement explains a way that gymnosperms benefit animals?

A
They have exposed seeds, which can be found and eaten quickly.
B
They have wide leaves, which can support large nests.
C
They have fruits, which contain seeds and taste sweet.
D
They have short trunks, which provide shelter for smaller animals.
17

Lexi drew a diagram to compare eubacteria and archaebacteria.

Question illustration
A
Take different shapes
B
Are single-celled
C
Live in antarctic ice
D
May be autotrophs
18

pollenseedsstamenstigma

A
pollen
B
seeds
C
stamen
D
stigma
19

Leona drew a diagram to compare ginkgoes and conifers.

Question illustration
A
are deciduous
B
produce cones
C
look like palm trees
D
are the largest group
20

decomposersparasitesheterotrophicunicellular

A
decomposers
B
parasites
C
heterotrophic
D
unicellular

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Unit Test — Unit test Answers — Science 7 B M12…