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Science Unit 1 Test- Life Science

Last updated about 4 years ago
36 questions
Note from the author:
Using Inspire Science and Mystery Science
3

Height is a physical trait that can vary from parent to offspring.
True or false and then explain why you chose that.

3

Two parents each have a dominant trait and a recessive trait present. Is it possible for their offspring to show only the recessive trait? Explain.

3

Which of the following is an example of a variation in physical traits among offspring?

a) tigers have different stripe patterns

b) dolphins hunt fish in different ways

c) all lions have sharp teeth

d) a grizzly bear and a black bear have different sized paws

2

How does natural selection change the characteristics of a population? Explain.

3

A dominant trait will_____.
a) be present in every animal.

b) never be inherited.

c) be covered up by a recessive trait.

d) mask the existence of a recessive trait.

1

Inherited traits are received from an offspring's _________.

3

Two pea plants with purple flowers ________
a) cannot have offspring with white flowers.

b) can only have offspring with purple flowers.

c) might have some offspring with white flowers and some with purple flowers

d) cannot have offspring

3

A recessive trait will always be obvious when an animal has it.
True or false?

3

The physical traits of the offspring are inherited and identical to its parents.
True or false?

3

Geckos have adapted to climb on almost every surface which helps them catch prey in many places.
True or false?

1

Animal or plant breeders choose animals/plants
by specific traits when deciding which animals to breed.
True or false?

1

A bear learning how to climb a tree from its mother is a learned behavior.
True or false?

1

Which of the following is not an inherited instinct?

a) a spider's ability to spin a web.

b) a kitten's ability to breathe.

c) a bird's desire to build a nest.

d) a dog learns how to catch a disc.

1

Different species of animals_____________
a) can learn same behaviors

b) do not have any of the same instincts

c) cannot learn the same behavior

d) never have any of the same traits.

1

Some species reproduce with a lot of offspring in ordere to be sure some will survive. This is called

a) under-breeding
b) overproduction
c) variation
d) selection

1

Which of the following is NOT a physical characteristic?
a) your eye color
b) hair color
c) height
d) favorite subject

1

Which of the following is not a learned behavior?
a) a horse jumps over a gate
b) a dolphin does tricks for fish
c) a bear hibernates through the winter
d) a dog fetches a tennis ball

1

A group of goats stay together in a herd.
Instinct or learned?

1

A mouse doscivers the best way out of a maze.
Instinct or learned?

1

A bear finds out that bee hives have honey to eat.
Instinct or learned?

1

A baby kangaroo crawls to its parent's pouch.
Instinct or learned?

1

A gazelle starts to stand up on 4 legs after being born.
Instinct or learned?

1

How deep a fossil is buried gives scientists clues about its _________
a) predators
b) population
c) size
d) age

1

A fossil with fins shows that the animal most likely could
a) walk
b) fly
c) move through water
d) find a new place to live

1

If not enough is done for a species that is endangered, then it may __________
a) become extinct
b) adapt to a new ecosystem
c) change it's food source
d) find a new place to live

1

Index fossils help scientists determine the age of other fossils.
True or false?

1

When there are not many of one kind of animal left, the animal is considered ________
a) endangered
b) adapted
c) extinct
d) recovered

1

Whcih kind of rocks are fossils usually found in?
a) igneous rocks
b) weathered and eroded rocks
c) sedimentary rocks
d) metamorphic rocks

1

Based on the table below, which animal was most likely a meat-eater?
a) triceratops
b) saber-toothed cat
c) wooly mammoth
d) pteradactyl

1

Fossils can help scientists know how animals move
True or false?

1

If a fern fossil is found in a rock layer lower than a fossil of a small fish, the fern is probably older.
True or false?

1

Dylan sorted animals into groups in the chart below.

Group A shown as a Mammoth, pteradactyl, T-Rex
Group B- shown as a camel, parrot and lion

How did Dylan sort the animals in the chart?

a) by their ability to fly
b) by the number of legs
c) by what they eat
d) by extinct and living


3

Based on the image below, where would the oldest rock be found? Explain.

3

The chart below shows four layers or soil.


The fossils of a dinosaur were found in the third layer of soil. What do we know about the fossils of a second dinosaur found in the fourth layer of soil? Explain.

1

Here is a fossil.

What can you tell about the animal in the picture?

a) It flew from tree to tree
b) It lived in the ocean
c) It could walk and run
d) It crawled along the ground.

1

All endangered organisms will become extinct.
True or false and explain.