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Worksheets

Q2 ELS

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Genes are passed from one generation to the next generation through.

a)

Evolution

b)

Regulation

c)

Form and Function

d)

Reproduction and Inheritance

2.

Among the given examples describes the unifying form and structure.

a)

Cellular basis of life

b)

Light as source of energy

c)

Bats have wings specialized for flying

d)

Living things arise from pre-existing cells

3.

Describe the image illustrated.

a)

It shows how organisms respond to its environment.

b)

Organisms are growing and developing.

c)

There is a transfer of energy among living organisms.

d)

They are evolving.

4.

Living organisms cannot live alone, they are interacting with the abiotic factors for sustainability of life. Which among the organisms is considered as the abiotic?

a)

Bacteria

b)

Plant

c)

Light

d)

Man

5.

Chameleons shift colors wherever they go. They are able to turn any colors or combine colors depending on where the environment is. What trait is being described?

a)

Adaptation

b)

Interaction

c)

Inheritance

d)

Reproduction

6.

The diversity of life arises by change leading to the present biodiversity that we see.

a)

Evolution

b)

Adaptation

c)

Inheritance

d)

Reproduction

7.

The field of science is changing the lives of all organisms through technology and research.

a)

Adaptation

b)

Biology and Society

c)

Energy and Life

d)

Inheritance

8.

All organisms alive today have descended from simple cellular creatures billions of years ago. Biologists were able to identify and preserved some of the characteristics of that earliest organisms.

a)

Function and structure are interdependent

b)

Cell theory as a description of living systems.

c)

Emergent properties arise from the organization of life.

d)

Unity of living systems is explained by evolutionary conservation.

9.

A term used to describe morphologically and genetically similar individuals

a)

Clone

b)

Identical

c)

Similar

d)

Vegetative

10.

A certain organism was cut and divides into two, leaving one piece headless and the other tailless. After some time, each piece grows the missing body parts. What does it show?

a)

Irregular fission

b)

Binary fusion

c)

Transverse fission

d)

Longitudinal fission

11.

Reproduction in animals that involves production of new living organism by combining two gametes from different organism, one male producing motile gamete that must fused with the egg cell from female organism.

a)

Asexual

b)

Sexual

c)

Both A and B

d)

None of A and B

12.

The largest cell in the female body waiting for a motile gamete to be fused with.

a)

Egg

b)

Morula

c)

Sperm

d)

Zygote

13.

The following is/are involved in sexual reproduction

a)

Egg cell

b)

Sperm cell

c)

Tissue

d)

Both A and B

14.

It is characterized as having male and female reproductive tissue in one organism.

a)

Hermaphroditism

b)

Heterogamy

c)

Bisexual

d)

Isogamy

15.

Which is TRUE about sexual reproduction

a)

Gametes has diploid cells.

b)

Occur with only one parent involve.

c)

Produce genetically different offspring as compared to parents.

d)

Involves less time as compared to asexual reproduction process.

16.

A new organism develops from an outgrowth or bud due to cell division at one particular site.

a)

Budding

b)

Fragmentation

c)

Longitudinal fission

d)

Parthenogenesis

17.

Where the body breaks into two or more parts and capable of becoming complete individual. In animals, usually followed by regeneration where the missing parts are produced.

a)

Budding

b)

Fragmentation

c)

Sporulation

d)

Parthenogenesis

18.

I. Aphids can reproduce sexually when condition is stable and favorable during springs

II. Aphids can reproduce asexually when condition is stable and favorable during springs

a)

Statement I is correct

b)

Statement II is correct

c)

Statement I and II are both correct

d)

Statement I and II are both incorrect

19.

I. Sexual reproduction involves the union of gametes, and it does not change the number of chromosomes present.

II. Asexual reproduction involves the union of gametes, and it does not change the number of chromosomes present.

a)

Statement I is correct

b)

Statement II is correct

c)

Statement I and II are both correct

d)

Statement I and II are both incorrect

20.

It is a process in which animals with desired characteristics are mated to produce offspring with those desired traits.

a)

Cloning

b)

Hybridization

c)

Inbreeding

d)

Selective breeding

21.

It is a process of creating an organism that has an exact genetic copy of another.

a)

Artificial selection

b)

Cloning

c)

Gene splicing

d)

Selective breeding

22.

A technique in artificial selection that involves crossing two genetically different organisms to produce offspring with desirable traits from both parents.

a)

Cloning

b)

Hybridization

c)

Inbreeding

d)

Selective breeding

23.

It is a process where a DNA is cut out from one organism and put into another organism.

a)

Cloning

b)

Gel electrophoresis

c)

Gene splicing

d)

Selective breeding

24.

I. Genetically modified plants have created resistance to harmful agents, enhanced product yield, and shown increased adaptability for better survival.

II. Recombinant DNA technology has applications in various area like medicine focusing on the discoveries of medicine to cure and improve human health and nutrition

a)

Statement I is correct

b)

Statement II is correct

c)

Statement I and II are both correct

d)

Statement I and II are both incorrect

25.

I. Genetically modified organisms (GMO) are products of recombinant DNA technology

II. Translated organisms are other term for genetically modified organisms

a)

Statement I is correct

b)

Statement II is correct

c)

Statement I and II are both correct

d)

Statement I and II are both incorrect

26.

The urinary system gets rid of.

a)

Cartilage

b)

Nutrients

c)

Oxygen

d)

Waste

27.

A system delivers oxygen and nutrients to every cell in the body.

a)

Circulatory

b)

Integumentary

c)

Muscular

d)

Respiratory

28.

It can you infer about carbon dioxide from the function of the respiratory system?

a)

It helps you breathe

b)

It is more common than oxygen

c)

It is harmful to your body

d)

It is not found in the body

29.

The circulatory system and the nervous system both:

a)

Deliver blood to vital organs

b)

Extend throughout the body

c)

Sends electrical signals to the brain

d)

Guard the body against infections

30.

The main function of your stomach

a)

To hold food

b)

To mix food with digestive juices

c)

To absorb food into the blood stream

d)

To hold waste materials

31.

Which body system is responsible for taking in oxygen and getting rid of carbon dioxide?

a)

Digestive system

b)

Excretory system

c)

Integumentary system

d)

Respiratory system

32.

The system of the body that is responsible for movement and helps in the contraction and relaxation of body parts.

a)

Circulatory system

b)

Digestive system

c)

Muscular system

d)

Respiratory system

33.

During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of the oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The vigorous contraction of the uterine smooth muscle helps push the baby through the birth canal so that delivery can occur. This process involves the interaction of which organ system?

a)

A. Endocrine and Reproductive only

b)

B. Endocrine and Muscular only

c)

C. Endocrine, Muscular and Reproductive

d)

D. Endocrine, Reproductive and Excretory

34.

Kidneys are part of the excretory system. They purify the blood and send it back to the rest of the body. Which system is mainly responsible for the transport of plasma to the kidneys?

a)

Circulatory system

b)

Respiratory system

c)

Nervous system

d)

Muscular system

35.

What two body systems are most useful in getting nutrients from the food that you eat?

a)

Muscular and Endocrine systems

b)

Nervous and Digestive system

c)

Nervous and Circulatory System

d)

Circulatory and Digestive System

36.

What two systems work together to provide body cells with a constant supply of oxygen while removing carbon dioxide waste?

a)

Circulatory and respiratory systems

b)

Muscular and circulatory systems

c)

Nervous and circulatory systems

d)

Nervous and immune systems

37.

The human digestive system is approximately 900 cm long. Food is moved through the digestive tract primarily by:

a)

Bile produce by the pancreas

b)

Hydrochloric acid by the stomach

c)

Muscular contractions

d)

The enzyme amylase and pepsin

38.

The digestive system is to absorbing nutrients as the circulatory system is to

a)

Removing nutrient

b)

Attracting nutrients

c)

Distributing nutrients

d)

Fighting infections

39.

How do circulatory system and immune system work together to respond to an injury?

a)

Increase blood flow carries white blood cells to the site of the injury

b)

Increase blood flow kills healthy cells which prevents infection at the site of the injury

c)

Increase blood flow allows for an increase in the exchange of carbon dioxide and oxygen at the site of the injury

d)

Increase blood flow removes infected cells from the body at the site of the injury

40.

Which body systems must directly interact for vertebrate organism to exchange gasses?

a)

A. Circulatory and Respiratory

b)

B. Endocrine and Respiratory

c)

C. Immune and Endocrine

d)

D. Skeletal and Circulatory

41.

A deer hears a predator approaching and begins to run for safety. The deer has primarily engaged what body system to escape?

a)

Muscular, Reproductive, and Circulatory System

b)

Muscular, Digestive, and Immune system

c)

Nervous, Respiratory, and Muscular system

d)

Respiratory, Endocrine and Excretory System

42.

Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?

a)

Excretory and Immune

b)

Muscular and Digestive

c)

Nervous and Digestive

d)

Urinary and Muscular

43.

Refers to a change over time

a)

Evolution

b)

Gradualism

c)

Migration

d)

Mutation

44.

Each living species has descended, with changes, from other species over time and as a result species today look different from their ancestors

a)

Theory of Descent with Modification

b)

Theory of Modification

c)

Theory of Natural Selection

d)

Theory of Survival

45.

Explains the difference in survival of individual and reproduce in a particular environment

a)

Evolution

b)

Gene flow

c)

Gradualism

d)

Natural Selection

46.

Takes place when population decreases due to various environmental factors such as fires, earthquakes and floods

a)

Bottleneck Effect

b)

Founder Effect

c)

Genetic Flow

d)

Natural Selection

47.

According to his theory of evolution, organisms change during their lifetime to survive then pass these changes to their offspring

a)

Carolus Linnaeus

b)

Charles Darwin

c)

Jean Baptiste de Lamarck

d)

Thomas Malthus

48.

His theory involves natural selection

a)

Carolus Linnaeus

b)

Charles Darwin

c)

Jean Baptiste de Lamarck

d)

Thomas Malthus

49.

What influence the carrying capacity is maximum number of organisms that an ecosystem can support What influence that carrying capacity?

I. Limiting factor

II. Biotic potential

III. Biotic factor

IV. Abiotic factor

V. Environmental resistance

VI. Predation

VII. Competition

a)

I and II

b)

III and IV

c)

II and V

d)

VI and VII

50.

It is the connection between biotic potential and environmental resistance.

a)

Biotic potential increases the population whereas environmental resistance confines its growth.

b)

Biotic potential increases the population while environmental resistance decreases its growth.

c)

Biotic potential and environmental resistance are the two factors that increase the population growth.

d)

Biotic potential and environmental resistance are the two factors that limit the population explosion.