Question # 1

There areas where living organisms interct with non -livnig components of the environment are called.

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Population

Community

Ecosystem

Species

Trace the pathway of water from the soil through the plant to be the atmosphere:

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Endodermis, cortex , epidermis , xylem , intercellular spaces in mesophyll, stomata

Epidermis, endodermis , phloem, cortex of leaf, intercellular spaces of mesophyll, stomatta

Root hairs, epidermis , Cortex, xylem, endodermis, intercellular spaces in mesophyll, stomata

Root hairs, Cortex, endodermis ,xylem,intercellular spaces in mesophyll, stomata

Loss of species makes ecosystem less ____________ and less productive.

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Beneficial

Resilient

Interactive

None of these

Oesophague is .......... centimeters long.

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10 cm

25 cm

20 cm

None

The rate of transpiration is increased when:

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Low light

Temperature decrease

Humidity increased

None of these

Example of Apoptotic process is ............... .

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Disappearance of tadpole tail

Disappearance of web human hand

Formation of fingers of hand

All of the above

Plant cell have large number of stacks known as:

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Protostomes

Dictostomes

Distyosomes

All

At which point, is a biologist most likely to use reasoning?

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While talking observations

During hypothesis formulation

During data organization

None of these

The large intestine is about ................ meters long.

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1.2

1.3

1.4

1.5

Which of these material is not a component of the plasma membrane?

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Lipids

Carbohydrates

Proteins

DNA

Capillaries are ............ micrometer in diameter.

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7-8 micrometer

8-10 micrometer

8-14 micrometer

7-10 micrometer

The breaking of one phosphate bond releases _________ kcal/mol of ATP.

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7.9

7.5

7.1

7.3

The branch of biology which deals with the study of Classification of organisms is called.

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Systematics

Cell Biology

Taxonomy

Physiology

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