Question # 1

At which level of organization gas exchage occurs between body and environment.

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Organ system level in the respiratory system

Oranelle level in mitochondria

Cellular level in alveolar cells

Tissue level in epithelial tissues

Deduction are drawn from

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Law

Hypothesis

Experiment

Theory

Which of the followign is incorrect about asexual reproduction.

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Conrtibutes in evolution of new species

Single parent contributes gentic mateial

No gamete formation is involved

Offspring afe genetically identical

The oldes knwon fossil is cyanobacterium estimated to be years old.

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3.5 billion

2.4 billion

1.4 billion

4 billion

Colonial organization feature of kingdom.

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Plantae

Protista

Animalia

Fungi

In a leaf, which tissue is primarily responsible for photosynthesis.

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Phloem

Xylem

Mesophyll

Epidermis

In a bar chart what does the height or length of each bar represent.

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The total numebr of categories

The value fo the corresponding category

The average of all values

The difference between the highest and lowest values

Alocolic fermentation occurs in

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Bacteria

Man

Yeast

Bacterial and yeast

In biostatictics which method is used to predict future outcom based on current data.

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Designing experiments

Predicting outcomes

Interpreting result

Analysing data

All of the following are the adaptation of exrophytes except.

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Thick cuticle

Sunken stomata

Deep root system

Large number of stomata

Which one is the basic unit of classification.

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Order

Species

Genus

Family

Scientific name has advantagesof.

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Same name applied to differente organisms

Same organismsm have different name in differente arreas.

Has scientific basis and is univrsally accepted

Has no scietific basis

The other name of environmental biology is

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Ecology

Biotechnology

Microbiology

Cell biology

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