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WorksheetsLife Science Milestone Practice
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
In order for pea plants to be short, two factors must be present. What types of factors are these?
a)
genes
b)
chromosomes
c)
dominant
d)
recessive
2.
Scientists discovered three things when they observed cells through a microscope. Which of the following did they NOT observe?
a)
All living things are made of cells.
b)
All cells share some characteristics
c)
Different kinds of cells do different jobs.
d)
Plant cells and animal cells have the same structure.
3.
What kind of microorganism turns milk into yogurt?
a)
yeast
b)
algae
c)
bacteria
d)
phytoplankton
4.
Which of the following is found in plant cells but not in animal cells?
a)
chromosomes
b)
mitochondria
c)
vacuoles
d)
chloroplasts
5.
The organelle that directs all of the cell's activities is the
a)
cytoplasm
b)
mitochondria
c)
nucleus
d)
vacuole
6.
How are an amoeba and a human being alike?
a)
Both are made from many cells.
b)
Both are single cells.
c)
Both are made of a cell or cells with a nucleus.
d)
Both are made of a cell or cells with a chloroplast.
7.
What kind of microorganism makes penicillin?
a)
bacteria
b)
protist
c)
mold
d)
algae
8.
Which is the correct arrangement of structures from the simplest to the most complex?
a)
cell, organ, organ system, tissue
b)
cell, tissue, organ, organ system
c)
organ system, tissue, organ, cell
d)
cell, tissue, organ system, organ
9.
Which statement is NOT true?
a)
Microorganisms help dead things decay.
b)
Microorganisms have only one cell.
c)
Microorganisms cause disease.
d)
Microorganisms are used to make cheese.
10.
Which type of microorganism rots wood, spoils food, and causes skin diseases such as ringworm and athletes foot?
a)
bacteria
b)
protists
c)
protozoans
d)
fungi
11.
Which characteristics help scientists classify an organism as an animal?
a)
It is made up of many cells and absorbs food from its surroundings.
b)
It is made up of many cells and feeds on other living or once living things.
c)
It is made up of many cells and makes its own food.
d)
It is made of a single cell and makes its own food.
12.
Invertebrates do NOT have a
a)
brain
b)
heart
c)
stomach
d)
backbone
13.
Cesar sees a plant in the park and knows right away that it is a gymnosperm. How can he tell?
a)
The plant has flowers.
b)
The plant is an apple tree.
c)
The plant is a pine tree with cones.
d)
The plant is moss on a rock.
14.
What is another name for inherited behaviors?
a)
recessive traits
b)
chromosomes
c)
instincts
d)
factors
15.
What organelle is NOT found in animal cells?
a)
chloroplast
b)
cell membrane
c)
nucelus
d)
mitochondrion
16.
What explains Mendel's observations that all first-generation pea plants were tall?
a)
The height of the plant is determined by the amount of sunlight the plant receives.
b)
Tallness is a dominant trait in pea plants.
c)
Shortness is a dominant trait in pea plants.
d)
Tallness is a recessive trait in pea plants.
17.
Which of the following is NOT a shape of bacteria?
a)
rods
b)
squares
c)
spirals
d)
balls
18.
In dogs, black fur is a dominant trait and tan fur is a recessive trait. What are the likely results of breeding a dog with fur with a dog with tan fur?
a)
All the puppies will have tan fur.
b)
The puppies will have black fur with tan spots.
c)
All the puppies will have black fur.
d)
None of the puppies will have black fur.
19.
What is another name for instinct?
a)
recessive trait
b)
chromosome
c)
inherited behavior
d)
learned behavior
20.
Which group comes next in this: Kingdom, Phylum,
a)
Order
b)
Species
c)
Genus
d)
Class
21.
What type of organism can grow on raw food and make you sick?
a)
yeasts
b)
bacteria
c)
protozoans
d)
algae
22.
When a swallow uses mud and grass to build its nest, it is demonstrating
a)
a physical trait.
b)
an instinct.
c)
a learned behavior.
d)
environmental influences.
23.
What microorganism does a baker add to bread dough to make it rise?
a)
penicillin
b)
phytoplankton
c)
yeast
d)
bacteria
24.
Which statement is NOT true?
a)
Microorganisms are too small to see without a microscope.
b)
Bacteria are made up of multiple cells.
c)
Some fungi can rot wood and spoil food.
d)
Microorganisms cause dead things to decay.
25.
Which statement is true of both a single-celled organism and an organism with millions of cells?
a)
Each cell is able to carry out its own life functions.
b)
Each cell is covered with epithelial tissue.
c)
Cells are organized into tissues that perform a specific function.
d)
Different kinds of tissues form organs.
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