BT101 Midterm MCQs

BT 101 M.C.Q Midterm · BT 101 · LECTURE 02

1-Water+light=?

(a)Biological energy (b) mechanical energy(c) chemical energy (d) none 2-Chemical energy+carbondioxide=?

(a)lipids (b) carbohydrates(C) sugar (d) none

LECTURE 03

1-How many types of the producers?

1. 4
2. 1
3. 2
4. 3

Correct answer: 2

2-Synthesis of the organic compounds of their bodies from inorganic precursors such as:

• CO2, H2O, NO3 known as the?

(a)Photoautotrophs (b) autotrophs (c) heterotrophs (d) chemoautotrophs 3-Examples of the photoautotrophs? (a)plants & algae (b) algae & cyanobacteria (c) cyanobacteria ,plants & algae (d) fungi & cyanobacteria 4The autotrophs which occurs in dark habitats & Convert toxic molecules into glucose known as the? (a)Chemotrophs (b) prototroph(c) Chemoautotrophs (d) heterotrophs

1-Plant based is which type of the energy source for the herbivores?

1. Secondary
2. primary
3. tertiary
4. none

Correct answer: primary

2-Main types of the herbivores depending upon their energy source?

1. 7
2. 5(c) 8
3. 11

3-Main types of the carnivores?

1. 3
2. 5
3. 7
4. 2

4-Primary decomposer?

1. Bacteria
2. Fungi
3. bacteria & fungi
4. none

Correct answer: Fungi

5-Breaking down of tissues by the body's own internal chemicals and enzymes is called?

1. Autolysis
2. Heterolysis
3. Digestion
4. none

Correct answer: Autolysis

6-The process of the putrefaction performed by the bacteria release which compounds? (a)cadaverine and putrescine(b) putrescine(c) both (d) a&c Lecture 05 1-Decomposition plays an important role in which cycles? (a)C&N (b) C&O(c) C&N&O(d) N&P 2-The process of the proteolysis resalethe? (a) N&O (b) N&P (c) Both (d) None

1-Linear network of links to pass energy in form of food?

1. Trophic level
2. Feeding level
3. Food chain
4. none

Correct answer: Food chain

2-The net effect of direct and indirect relations is called?

1. Trophic cascaedes
2. consumer-resource
3. producer-consumer(d) none Lecture 08

Correct answer: Trophic cascaedes

1-Raw rate at which the primary producers synthesize new organic matter?

1. Primary productivity (PP)(b) Gross primary productivity (GPP)
2. Net primary productivity
3. None

Lecture 09 1-The amount of the solar energy which is consumed in the photosynthesis? (a) 5% (b) 1% (c) 90% (d) 99% 2-The amount of the solar energy which is converted into the heat?

1-Flow of energy and decline of chemical-bond energy is represented by?

1. Photosynthetic plankton
2. phytoplankton
3. pyramids
4. none

Correct answer: pyramids

1-The natural environment where species / organisms live?

1. Shelter
2. protection
3. Habitat
4. none

Correct answer: Habitat

2-Orientation towards a source is called (Taxis).

1-The condition in which the decreased body metabolism & lowered body temperature is known as the?

1. Winter sleep
2. Hibernation
3. Tropor
4. Aestivation

Correct answer: Tropor

1- The water is essential factor in?

1. Evaporation
2. Excretion(c) Homeostasis
3. none

1-The house fly produce how many eggs through life time?

1. 500 eggs
2. 900 eggs
3. 600 eggs
4. none

Correct answer: 600 eggs

2- Which is the type of the survivorship curve?

1. Convex & diagonal
2. Concave
3. Both a&b
4. none

Correct answer: Both a&b

1-How many types of the population growth?

1. 2
2. 4
3. 6
4. 5