Question 1

Which of the following refers to non-living component of an ecosystem?

Accepted Answer

Abiotic

Answer

Decomposer

Answer

Biotic

Answer

Consumer

Question 2

Which of the following best describes the relationship of durian and lanzones trees competing for space and sunlight?

Accepted Answer

The durian tree and lanzones tree are both harmed from the relationship.

Answer

The durian tree has benefited while the lanzones tree is harmed.

Answer

The durian tree is harmed while the lanzones tree has benefited.

Answer

The durian tree and lanzones tree are both benefited from the relationship.

Question 3

Which of the following is NOT a natural disturbance to the abiotic components in an ecosystem?

Accepted Answer

Quarrying

Answer

Earthquake

Answer

Typhoon

Answer

Landslide

Question 4

Motion is the change in position with respect to the reference point. An object is said to be moving when it has traveled a certain distance or displaced from a point of reference.

Accepted Answer

true

Answer

false

Question 5

Which of the following abiotic components is the source of water and nutrients for plant growth and development?

Accepted Answer

Soil

Answer

Temperature

Answer

Air

Answer

Sunlight

Question 6

Which of the following statements is TRUE about predation?

Accepted Answer

One organism is benefited while the other is harmed.

Answer

Both of the organisms are harmed.

Answer

One organism is benefited while the other is unaffected.

Answer

Both of the organisms are benefited.

Question 7

Which of the following can best help reduce the effects of climate change?

Accepted Answer

Planting more trees.

Answer

Drink 8 to 10 glasses of water a day.

Answer

Stop building homes.

Answer

Take a bath daily.

Question 8

Displacement can be equal to distance when ________.

Accepted Answer

path travelled is a straight line.

Answer

car is travelling on the road upward.

Answer

ball is rolling on an inclined plane.

Answer

object is in circular motion.

Question 9

What will happen to the organisms when there is water pollution?

Accepted Answer

Some organisms will be harmed and may result to death.

Answer

Organisms will become healthy.

Answer

Some organisms may eventually adapt to the new environment.

Answer

Organisms will survive.

Question 10

Which of the following examples shows parasitism?

Accepted Answer

A tick on the skin of a dog.

Answer

Lions hunting and killing a buffalo.

Answer

An orchid living on a trunk of a mahogany tree.

Answer

All trees in the forest.

Question 11

Sophie loves to plant. She wakes up early to take care of her succulents and flowers. The following are needed to keep her plants growing, except:

Accepted Answer

Excessive amount of fertilizer

Answer

Enough water in the soil

Answer

None of the choices

Answer

Sufficient sunlight

Question 12

Which of the following shows the displacement travelled by an object?

Accepted Answer

36 km, South

Answer

27 km/h

Answer

18 km

Answer

9 seconds

Question 13

The ecological relationship of fishes in the aquarium is the same as that of____________________.

Accepted Answer

carabao grass and bermuda grass in the garden

Answer

mosquito and man

Answer

a frog and a cricket

Answer

a bee and a flower

Question 14

Which of the following relationships exists when bacteria live in a man’s intestine?

Accepted Answer

Parasitism

Answer

Competition

Answer

Predation

Answer

Mutualism

Question 15

The following are human activities which can lessen the effects of air pollution, EXCEPT:

Accepted Answer

burning of garbage

Answer

multiple crop farming

Answer

tree planting

Answer

segregation of wastes

Question 16

Kian walked 300 m East from home to visit Jhovance. He then walked another 500 m East to fetch Neph and both of them walked 300 m West to watch the birds. Which of the following statements is true?

Accepted Answer

Kian’s displacement is shorter than the total distance he has travelled.

Answer

Kian has travelled a total distance of 1,000 m.

Answer

Kian went home.

Answer

Kian’s displacement is zero if he has travelled 700 m West together with Neph.

Question 17

What is the ultimate source of almost all energy in most ecosystems?

Accepted Answer

Sun

Answer

Water

Answer

Carbohydrates

Answer

Carbon

Question 18

Which of the following statements describes parasitism?

Accepted Answer

One organism benefits at the expense of the other organism.

Answer

Both organisms are harmed.

Answer

One organism benefits and the other is unaffected.

Answer

Both organisms are benefited.

Question 19

What may happen to fishes when there is insufficient level of oxygen in the water?

Accepted Answer

They might be suffocated.

Answer

They can’t see.

Answer

They can grow healthy.

Answer

They can no longer float in the water.

Question 20

Leah, an aspiring athlete, runs the oval. The oval has a total length of 1500 meters. She always finished running 2 laps as part of her daily routine. Is it true that her total displacement is 3000 meters, East?

Accepted Answer

No, because her total displacement is equal to zero.

Answer

Yes, because her displacement is equal to her total distance covered.

Answer

Yes, because she finished 2 laps which is equal to 3000 meters.

Answer

No, because her total displacement should be 3000 meters, West.

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