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BIO-ONLINE QUIZ @KML

Total questions: 30

Worksheet time: 7mins

Name
Class
Date
1.

Which of the following bacteria is INCORRECTLY classified with regard to its shape?

a)

Vibrio cholerae - helical

b)

Streptococcus pneumoniae - Spherical

c)

Bacillus subtilis - rod-shaped

d)

Helicobacter pylori - Spiral

2.

When environmental conditions are suitable for growth, fern spores will germinate and develop into a

a)

prothallus

b)

protonema

c)

frond

d)

strobilus

3.
Flatworms are unsegmented, bilaterial worms that lack a coelom.  Animals that lack a coelom are called ___________________.
a)
acoelomates
b)
coelomates
c)
noelomates
d)
innoelomates
4.

What type of body symmetry do the phylum Platyhelminthes has?

a)

Radial

b)

Assymmetrical

c)

Bilaterial

5.

Which compound in the cell wall that causes a Gram positive bacteria stain purple in colour when it is treated with crystal violet dye?

a)

Cellulose

b)

Lipoprotein

c)

Peptidoglycan

d)

Lipopolysaccharide

6.

Both gymnosperms and angiosperms

a)

produce seeds.

b)

posses vascular tissues.

c)

lack a free–living gametophyte stage.

d)

All of the above.

7.
For a pyramid of numbers, the width of the bar shows the__________ of organisms present in each trophic level at a particular time. 
a)
number
b)
biomass
c)
energy
d)
volume
8.
An organism that eats the secondary consumer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Tertiary Consumer
d)
Consumer
9.

How are primary consumers different from secondary consumers?

a)

Primary consumers eat only plants; secondary consumers eat other consumers.

b)

Primary consumers eat other consumers; secondary consumers eat only plants.

c)

Primary consumers eat plants and other consumers; secondary consumers eat plants and decompose matter.

d)

Primary consumers eat plants and decompose matter; secondary consumers eat plants and other consumers.

10.

What converts nitrogen gas into a usable form for plants and animals?

a)

bacteria

b)

rain

c)

fungi

d)

car exhaust

11.

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

a)

Assimilation

b)

Fixation

c)

Ammonification

d)

Denitrification

12.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
13.
Which limiting factor would increase due to the number of individuals in a population?
a)
Unusual weather
b)
Natural disaster
c)
Births
d)
Disease
14.
Which of the following is TRUE of predator/prey relationships?
a)
The amount of prey does not affect the number of predators.
b)
Herbivores are limited by the number of prey in an ecosystem.
c)
Humans are not considered predators.
d)
The number of predators is determined by available prey.
15.

What is the definition of natural selection?

a)

The process in which genes are chosen by humans such as farmers and ranchers

b)

The process in which organisms are chosen by environmental pressures such as climate, available food, predators and habitat.

c)

If an organism changes during their life in order to adapt to its environment, those changes are passed on to its offspring.

d)

The process in which genes are chosen by scientist and academics.

16.
When every organism of a species has died.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artificial Selection
17.
Which is an example of a trait that is an adaptation for cold climate but not for warm climate?
a)
thick fur and fat
b)
long claws
c)
camoflauge
d)
poisonous chemicals
18.

The Galapagos finch species are an excellent example of.....

a)

stabilizing selection

b)

genetic equilibrium

c)

speciation

d)

selection on single-gene traits

19.

In genetic drift, allele frequencies change because of....

a)

mutations

b)

natural selection

c)

genetic equilibrium

d)

chance

20.
A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups, that they will never meet in nature again. What type of reproductive barrier is this?
a)
behavioral isolation
b)
temporal isolation 
c)
gametic isolation
d)
geographic isolation 
21.
The flowers of pink tulips open in the morning, while the flowers of lavender tulips open in the early afternoon. The bees that pollinate these tulips cannot carry pollen back & forth between the two types of tulips because of their flowers being closed at different times of day. What type of reproductive barrier is this?
a)
behavioral isolation
b)
hybrid sterility 
c)
temporal isolation
d)
mechanical isolation 
22.

A new river forms and splits two populations, causing ______________ speciation

a)

Sympatric

b)

Allopatric

c)

Extreme

d)

Convergent

23.
What type of genetic drift occurs when the population size is greatly decreased due to a random event?
a)
Founder's Effect
b)
Bottleneck Effect
c)
Intrasexual Selection
d)
Intersexual Selection
24.

The vascular tissue of plants is MOST similar in function to what structures in the human body?

a)

The veins, arteries, and capillaries

b)

The bone cells of the skeletal system

c)

The cardiac muscle of the heart

d)

The outer layer of skin tissue

25.

Nonvascular plants like moss are generally very small because they lack the ability to do which of the following?

a)

open and close their stomata

b)

transport water long distances

c)

grow large due to their dry environment

d)

harness the full potential of the sun’s energy

26.

Identify the possible link 'B' in the following food chain:
Plant  ⟶\longrightarrow  Insect  →\rightarrow   'B'  →\rightarrow     Eagle

a)

Lion

b)

Frog

c)

Peacock

d)

Human

27.

Natural reservoir of phophorus is

a)

Rock

b)

Fossils

c)

Sea water

d)

Animal bones

28.
Which of the following must occur for speciation to happen?
a)
geographic isolation
b)
reproductive isolation
c)
temporal isolation
d)
behavioral isolation
29.
When has speciation occurred?
a)
When populations no longer look the same
b)
When populations no longer have the same frequency of alleles
c)
When populations are living in different environments
d)
When populations can no longer interbreed
30.
If you wanted to study living things, you might study _____________________.
a)
biology
b)
biodegradable
c)
biography
d)
biome

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