AP (Advanced Placement) Biology: Questions 551 - 556 of 868

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Question number: 551

» Evolution

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MCQ▾

Question

The oldest fossil evidence for life on earth dates ________ years ago.

Choices

Choice (5)Response

a.

About 4.0 million

b.

About 3.5 billion

c.

About 3.5 million

d.

About 4.7 billion

e.

About 4.5 billion

Question number: 552

» Circulatory, Immune & Lymphatic Systems

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MCQ▾

Question

Which of the following is NOT considered as a risk factor for hypertension?

Choices

Choice (5)Response

a.

Obesity

b.

Elevated HDL levels

c.

Smoking

d.

Elevated stress

e.

Alcohol

Question number: 553

» Circulatory, Immune & Lymphatic Systems

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MCQ▾

Question

Which of the following is NOT involved in the cardiac conduction system?

Choices

Choice (5)Response

a.

The AV node

b.

The SA node

c.

M cells

d.

The AV bundle

e.

Purkinje fibers

Question number: 554

» Microbiology

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MCQ▾

Question

Which structure most is like resemble the bacterial genome?

Choices

Choice (5)Response

a.

A viral genome

b.

A eukaryotic chromosome

c.

The Golgi apparatus

d.

The Nucleolus

e.

A mitochondrial genome

Question number: 555

» Evolution

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MCQ▾

Question

This event is considered last in the development of the first living cell

Choices

Choice (5)Response

a.

Formation of RNA

b.

Formation of organic materials

c.

Formation of proteins

d.

Formation of DNA

e.

Formation of a lipid bilayer

Question number: 556

» Microbiology

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MCQ▾

Question

Replica plating refers to a technique used

Choices

Choice (5)Response

a.

For the detection of nutritionally deficient organisms

b.

For the identification of different protein combinations

c.

For the identification of mobile genetic elements in maize

d.

For standard water analysis

e.

For the detection of enzymes in a bacterial form

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