Question # 1

Families are grouped into _____________

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Family

Order

Class

Phylum

The element mostly present in an individual is

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Nitrogen

Carbon

Oxygen

Hydrogen

The first step in the cycle of an enzyme is;

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Substrate binds to enzyme

Substrate converted

Products released

Enzyme become free

........... was the 1st person to observe cells with a small microscope.

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Robert Hooke

Leeuwenhoek

Dolland

Robert Brown

The process of breaking down large droplets of fat into small droplets of fat is called:

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Emulsification

Absorbtion

Peristalsis

Digestion

Fungi cannot be placed in plantae kingdom because:

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Fungi lack cell wall

Fungi lack root, stem and leave

Fungi lack chlorophyll

Fungi do not store food

Stomata close when guard cells:

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Loss water

Gain chloride ions

Become turgid

Grain potassium ions

Heart consists of ............ chambers.

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Two

Three

Four

Five

The jejunum is about .......... meters long.

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2.1

2.2

2.3

2.4

_____________ is the total variety of life on earth.

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Biological diversity

Chemical divesity

Physical diversity

All of above

The elements that makes 65% if tge titak nass if kuvubg irgabusns us,

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Oxygen

Nitrogen

Carbon

Hydrogen

Which of the following chemical is used to identify the starch in leaves?

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KOH

KHCO₃

Ethanol

Iodine solution

In most plants the food is transported in the form of:

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Glucose

Sucrose

Starch

Proteins

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