Biology Test 43

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Biology Test 43

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Question 1/30
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Directions For Questions

Cleavage

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It is series of mitotic cell division that changes zygote into multicellular embryo.

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Skipped
A
Gastrulation

Correct

Wrong

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B
Gametogenesis

Correct

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C
Blastulation

Correct

Wrong

Skipped
D
Cleavage

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Solutions
Cleavage
Question 2/30
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Directions For Questions

cellulose and are permeable to solutes.

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Plant cell walls contain:

Correct

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Skipped
A
cellulose and are selectively permeable to water.

Correct

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Skipped
B
phospholipds and are permeable to solutes.

Correct

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Skipped
C
phospholipids and are selectively permeable to solutes.

Correct

Wrong

Skipped
D
cellulose and are permeable to solutes.

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Solutions
cellulose and are permeable to solutes.
Question 3/30
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Directions For Questions

A population is increasing, moving toward its carrying capacity during both phases.

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How are Phase 1 and Phase 2 of logistic growth similar?

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A
A population is increasing, moving toward its carrying capacity during both phases.

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B
A population is at its carrying capacity during both phases.

Correct

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C
The death rate is higher than the birth rate during both phases.

Correct

Wrong

Skipped
D
The emigration rate is higher than the immigration rate during both phases.

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Solutions
A population is increasing, moving toward its carrying capacity during both phases.
Question 4/30
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Directions For Questions

provascular tissue

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Primary phloem develops from ______.

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A
provascular tissue

Correct

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B
lateral meristem

Correct

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Skipped
C
protoderm

Correct

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Skipped
D
extrastelar cambium

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Solutions
provascular tissue
Question 5/30
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Directions For Questions

xerophytes

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Plants developing in dry conditions are?

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A
mesophytes

Correct

Wrong

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B
lithophytes

Correct

Wrong

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C
hydrophytes

Correct

Wrong

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D
xerophytes

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Solutions
xerophytes
Question 6/30
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Directions For Questions

Neither 1 nor 2

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Consider the following statements: 1. During the process of osmosis,the solvent travels from the concentrated solution to the dilute solution. 2. In the reverse osmosis,external pressure is applied to the dilute solution. Which of the statements given above is/are correct ?

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A
1 only

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B
2 only

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C
Both 1 and 2

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D
Neither 1 nor 2

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Solutions
Neither 1 nor 2
Question 7/30
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Directions For Questions

Active transport

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Movement of cell against concentration gradient is called ?

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A
Osmosis

Correct

Wrong

Skipped
B
Active transport

Correct

Wrong

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C
Diffusion

Correct

Wrong

Skipped
D
Passive transport

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Solutions
Active transport
Question 8/30
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Directions For Questions

Hypothalamus

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The part of the brain where the centre for hunger and thirst is located is?

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A
Hypothalamus

Correct

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B
Cerebrum

Correct

Wrong

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C
Cerebellum

Correct

Wrong

Skipped
D
Medulla Oblongata

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Solutions
Hypothalamus
Question 9/30
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Directions For Questions

Vitamin C

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Egg is rich source of nutrients except ?

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A
Vitamin C

Correct

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B
Protein

Correct

Wrong

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C
Vitamin D

Correct

Wrong

Skipped
D
Fats

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Solutions
Vitamin C
Question 10/30
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Directions For Questions

The open ocean begins at the low-tide mark and extends to the end of the continental shelf.

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Which of the following statements is NOT true about the open ocean?

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A
The open ocean has low levels of nutrients.

Correct

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B
Organisms in the deep ocean are exposed to frigid temperatures and total darkness.

Correct

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C
The open ocean begins at the low-tide mark and extends to the end of the continental shelf.

Correct

Wrong

Skipped
D
Most of the photosynthetic activity on Earth occurs in the open ocean within the photic zone.

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Solutions
The open ocean begins at the low-tide mark and extends to the end of the continental shelf.
Question 11/30
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Directions For Questions

The trophic structure of a community describes abiotic factors such as rainfall and temperature affecting members of the community.

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All of the following statements about communities are correct except?

Correct

Wrong

Skipped
A
The distribution of almost all organisms is probably affected to some extent by both abiotic gradients and interactions with other species.

Correct

Wrong

Skipped
B
Some animal species distributions within a community are linked to other species.

Correct

Wrong

Skipped
C
The trophic structure of a community describes abiotic factors such as rainfall and temperature affecting members of the community.

Correct

Wrong

Skipped
D
Ecologists refer to species richness as the number of species within a community.

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Solutions
The trophic structure of a community describes abiotic factors such as rainfall and temperature affecting members of the community.
Question 12/30
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Directions For Questions

both A and B.

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Life history strategies result from

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A
natural selection.

Correct

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B
environmental pressures.

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Wrong

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C
conscious choice.

Correct

Wrong

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D
both A and B.

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Solutions
both A and B.
Question 13/30
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Directions For Questions

both experimentation

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Ultimately, all scientific knowledge comes from.

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A
experimentation

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B
observation

Correct

Wrong

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C
textbooks

Correct

Wrong

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D
both experimentation

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Solutions
both experimentation
Question 14/30
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Directions For Questions

46

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Diploid chromosome number in humans is

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A
46

Correct

Wrong

Skipped
B
44

Correct

Wrong

Skipped
C
48

Correct

Wrong

Skipped
D
42

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Solutions
46
Question 15/30
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Directions For Questions

Liver

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Excessive consumption of alcoholic drinks causes damage to

Correct

Wrong

Skipped
A
Lungs

Correct

Wrong

Skipped
B
Kidney

Correct

Wrong

Skipped
C
heart

Correct

Wrong

Skipped
D
Liver

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Solutions
Liver
Question 16/30
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Directions For Questions

Enterokinase

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Which the following is a gastrointestinal hormone?

Correct

Wrong

Skipped
A
Enterokinase

Correct

Wrong

Skipped
B
Prolactin

Correct

Wrong

Skipped
C
GH

Correct

Wrong

Skipped
D
FSH

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Solutions
Enterokinase
Question 17/30
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Directions For Questions

density

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A biologist reported that a sample of ocean water had 5 million diatoms of the species Coscinodiscus centralis per cubic meter. What was the biologist measuring?

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A
range

Correct

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B
dispersion

Correct

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C
density

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D
carrying capacity

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Solutions
density
Question 18/30
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Directions For Questions

hypothalamus

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The region of the brain that integrates visceral activites, body temperature and heartbeat is the_____.

Correct

Wrong

Skipped
A
cerebrum

Correct

Wrong

Skipped
B
medulla oblongata

Correct

Wrong

Skipped
C
cerebellum

Correct

Wrong

Skipped
D
hypothalamus

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Solutions
hypothalamus
Question 19/30
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Directions For Questions

Hepatitis B virus

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The liver disease Hepatitis-B is caused by ...

Correct

Wrong

Skipped
A
DNA Virus

Correct

Wrong

Skipped
B
Hepatitis B virus

Correct

Wrong

Skipped
C
Bacterium

Correct

Wrong

Skipped
D
Platyhelminth

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Solutions
Hepatitis B virus
Question 20/30
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Directions For Questions

Hydrogen

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Which of the following does not cause atmosphere pollution ?

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A
CO

Correct

Wrong

Skipped
B
Hydrogen

Correct

Wrong

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C
Nirtrogen

Correct

Wrong

Skipped
D
All

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Solutions
Hydrogen
Question 21/30
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Directions For Questions

Nitrous Oxide

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What is laughing gas?

Correct

Wrong

Skipped
A
Nitrous Oxide

Correct

Wrong

Skipped
B
Carbon monoxide

Correct

Wrong

Skipped
C
Hydrogen peroxide

Correct

Wrong

Skipped
D
Sulphur dioxide

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Solutions
Nitrous Oxide
Question 22/30
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Directions For Questions

a slow, gradual and continuous process.

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According to Darwin, evolution is _______.

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A
a sudden but discontinuous process.

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B
a slow and discontinuous process.

Correct

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C
a slow, gradual and continuous process.

Correct

Wrong

Skipped
D
a slow, sudden and discontinuous process.

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Solutions
a slow, gradual and continuous process.
Question 23/30
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Directions For Questions

O

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When red blood corpuscles containing both A and B antigens are mixed with your blood serum, they agglutinate. Hence your blood group is _______ type.

Correct

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Skipped
A
O

Correct

Wrong

Skipped
B
AB

Correct

Wrong

Skipped
C
B

Correct

Wrong

Skipped
D
A

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Solutions
O
Question 24/30
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Directions For Questions

Botany

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The study of the biology and systems of the Plant kingdom is known as what?

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A
Herbology

Correct

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B
Herbobiology

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Wrong

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C
Botany

Correct

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D
Chlorobiology

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Solutions
Botany
Question 25/30
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Directions For Questions

sporic

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The plant alternation of generations is characterized by _______________ meiosis.

Correct

Wrong

Skipped
A
zygotic

Correct

Wrong

Skipped
B
somatic

Correct

Wrong

Skipped
C
sporic

Correct

Wrong

Skipped
D
generic

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Solutions
sporic
Question 26/30
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Directions For Questions

Growth plates are found in long bones that are still developing.

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Which statement concerning the growth plate is true?

Correct

Wrong

Skipped
A
The growth plates in long bones move toward each other as the long bone develops.

Correct

Wrong

Skipped
B
As a bone lengthens, chondroblasts deposit new cartilage on the inside of the growth plate.

Correct

Wrong

Skipped
C
Growth plates are found in long bones that are still developing.

Correct

Wrong

Skipped
D
The growth plate is composed of epithelial tissue.

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Solutions
Growth plates are found in long bones that are still developing.
Question 27/30
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Directions For Questions

Triggers the immune system

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Antigen is a substance which

Correct

Wrong

Skipped
A
Lower body temperature

Correct

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Skipped
B
Destroys harmful bacteria

Correct

Wrong

Skipped
C
Triggers the immune system

Correct

Wrong

Skipped
D
Is used as an antidote to poison

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Solutions
Triggers the immune system
Question 28/30
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Directions For Questions

Brain receives less oxygen as blood rushes toi supply oxygen and nutrition to the contracting stomach and intestines

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Why do we feel drowsy after a heavy meal ?

Correct

Wrong

Skipped
A
The hypothalamus produces melatonin to induce sleep

Correct

Wrong

Skipped
B
Brain receives less oxygen as blood rushes toi supply oxygen and nutrition to the contracting stomach and intestines

Correct

Wrong

Skipped
C
The biological clock is upset

Correct

Wrong

Skipped
D
The body muscles are fatigued

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Solutions
Brain receives less oxygen as blood rushes toi supply oxygen and nutrition to the contracting stomach and intestines
Question 29/30
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Directions For Questions

They are the same as theories.

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Which of the following statements concerning scientific hypotheses is false?

Correct

Wrong

Skipped
A
Their consequences can be tested by different investigators.

Correct

Wrong

Skipped
B
They are not always correct.

Correct

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C
They can be used to make predictions.

Correct

Wrong

Skipped
D
They are the same as theories.

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Solutions
They are the same as theories.
Question 30/30
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Directions For Questions

DNA and proteins

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Chromosomes consist of.

Correct

Wrong

Skipped
A
DNA and lipids

Correct

Wrong

Skipped
B
RNA and amino acids

Correct

Wrong

Skipped
C
RNA and sugar

Correct

Wrong

Skipped
D
DNA and proteins

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Solutions
DNA and proteins

Question 1/30

Gastrulation

Gametogenesis

Blastulation

Cleavage

Question 2/30

cellulose and are selectively permeable to water.

phospholipds and are permeable to solutes.

phospholipids and are selectively permeable to solutes.

cellulose and are permeable to solutes.

Question 3/30

A population is increasing, moving toward its carrying capacity during both phases.

A population is at its carrying capacity during both phases.

The death rate is higher than the birth rate during both phases.

The emigration rate is higher than the immigration rate during both phases.

Question 4/30

provascular tissue

lateral meristem

protoderm

extrastelar cambium

Question 5/30

mesophytes

lithophytes

hydrophytes

xerophytes

Question 6/30

1 only

2 only

Both 1 and 2

Neither 1 nor 2

Question 7/30

Osmosis

Active transport

Diffusion

Passive transport

Question 8/30

Hypothalamus

Cerebrum

Cerebellum

Medulla Oblongata

Question 9/30

Vitamin C

Protein

Vitamin D

Fats

Question 10/30

The open ocean has low levels of nutrients.

Organisms in the deep ocean are exposed to frigid temperatures and total darkness.

The open ocean begins at the low-tide mark and extends to the end of the continental shelf.

Most of the photosynthetic activity on Earth occurs in the open ocean within the photic zone.

Question 11/30

The distribution of almost all organisms is probably affected to some extent by both abiotic gradients and interactions with other species.

Some animal species distributions within a community are linked to other species.

The trophic structure of a community describes abiotic factors such as rainfall and temperature affecting members of the community.

Ecologists refer to species richness as the number of species within a community.

Question 12/30

natural selection.

environmental pressures.

conscious choice.

both A and B.

Question 13/30

experimentation

observation

textbooks

both experimentation

Question 14/30

46

44

48

42

Question 15/30

Lungs

Kidney

heart

Liver

Question 16/30

Enterokinase

Prolactin

GH

FSH