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Biolody_2015_STPM term U3_Objectives

Authored by Loh Jane

Biology

12th Grade

Used 2+ times

Biolody_2015_STPM term U3_Objectives
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The characteristics of an unknown marine organism are given below.

⋆ Radial symmetry

⋆ Diploblastic

⋆ Outer layer has stinging cells

What is the most probably phylum for the organism?

Porifera

Cnidaria

Mollusca

Platyhelminthes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which level of biological diversity correspond to their explanation?

Genetic diversity :

I

Species diversity :

II

Ecosystem diversity :

III

Genetic diversity :

II

Species diversity :

III

Ecosystem diversity :

I

Genetic diversity :

II

Species diversity :

I

Ecosystem diversity :

III

Genetic diversity :

III

Species diversity :

I

Ecosystem diversity :

II

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which level of ecological organisation are shown above?

I. Habitat

II. Ecosystem

III. Population

IV. Community

I and III

I and IV

II and III

II and IV

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The gross primary productivity of producers in a terrestrial ecosystem is 4000 kJ m-2 y-1. The net primary productivity of producers is 1800 kJ m-2y-1. If the efficiency of energy transfer from producers to herbivores is 10% and to the next level is 20%, what is the amount of energy obtained by secondary consumers?

36 kJ m-2y-1

80 kJ m-2y-1

110 kJ m-2y-1

360 kJ m-2y-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

X is a species of fish in a river. After a dam is constructed, individuals of species X upstream are separated from the individuals downstream. Gradually, the individuals in the upstream become a new species. This type of speciation is known as

intraspecific and allopatric

intraspecific and sympatric

interspecific and allopatric

interspecific and sympatric

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which characteristics correspond to their species?

I and II

I and IV

II and III

III and IV

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two species of Drosophila live in the same geographical area. One of the species is sexually active in the morning, while the other in the afternoon. Which reproductive isolation mechanism is involved?

Behavioral

Gametic

Mechanical

Temporal

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