The Origin And Evolutionary History Of Life - Biology | Biology+

Course

Introductory Biology

Study Pack

Set 1: A View of Life

Set 2: Atoms and Molecules: the Chemical Basis of Life

Set 3: The Chemistry of Life: Organic Compounds

Set 4: Organization of the Cell

Set 5: Biological Membranes

Set 6: Cell Communication

Set 7: Energy and Metabolism

Set 8: How Cells Make Atp: Energy-Releasing Pathways

Set 9: Photosynthesis: Capturing Light Energy

Set 10: Chromosomes, Mitosis, and Meiosis

Set 11: The Basic Principles of Heredity

Set 12: DNA: The Carrier of Genetic Information

Set 13: Gene Expression

Set 14: Gene Regulation

Set 15: DNA Technology and Genomics

Set 16: Human Genetics and the Human Genome

Set 17: Developmental Genetics

Set 18: Introduction to Darwinian Evolution

Set 19: Evolutionary Change in Populations

Set 20: Speciation and Macroevolution

Set 21: The Origin and Evolutionary History of Life

Set 22: The Evolution of Primates

Set 23: Understanding Diversity: Systematics

Set 24: Viruses and Subviral Agents

Set 25: Bacteria and Archaea

Set 26: Protists

Set 27: Seedless Plants

Set 28: Seed Plants

Set 29: The Fungi

Set 30: An Introduction to Animal Diversity

Set 31: Sponges, Cnidarians, Ctenophores, and Protostomes

Set 32: The Deuterostomes

Set 33: Plant Structure, Growth, and Development

Set 34: Leaf Structure and Function

Set 35: Stem Structure and Transport

Set 36: Roots and Mineral Nutrition

Set 37: Reproduction in Flowering Plants

Set 38: Plant Developmental Responses to External and Internal Signals

Set 39: Animal Structure and Function: an Introduction

Set 40: Protection, Support, and Movement

Set 41: Neural Signaling

Set 42: Neural Regulation

Set 43: Sensory Systems

Set 44: Internal Transport

Set 45: The Immune System: Internal Defense

Set 46: Gas Exchange

Set 47: Processing Food and Nutrition

Set 48: Osmoregulation and Disposal of Metabolic Wastes

Set 49: Endocrine Regulation

Set 50: Reproduction

Set 51: Animal Development

Set 52: Animal Behavior

Set 53: Introduction to Ecology: Population Ecology

Set 54: Community Ecology

Set 55: Ecosystems and the Biosphere

Set 56: Ecology and the Geography of Life

Set 57: Biological Diversity and Conservation Biology

Set 21 The Origin And Evolutionary History Of Life

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Set 21 The Origin And Evolutionary History Of Life

(Multiple Choice)

Free

The first cells were most likely heterotrophic anaerobes because:

A) they were dependent upon cyanobacteria for oxygen.
B) they manufactured organic molecules and needed oxygen.
C) they manufactured organic molecules and do not need oxygen.
D) they utilized preformed organic molecules and needed oxygen.
E) they utilized preformed organic molecules and did not need oxygen.

Answer

(Multiple Choice)

Free

The atmosphere of early Earth is currently thought to have contained:

A) methane, water, ammonia, nitrogen, and oxygen.
B) carbon dioxide, water, oxygen, nitrogen, and hydrogen.
C) carbon dioxide, ozone, nitric oxide, water, and hydrogen sulfide.
D) carbon dioxide, water, carbon monoxide, hydrogen, and nitrogen.
E) carbon dioxide, carbon monoxide, water, hydrogen, and nitric oxide.

Answer

(Multiple Choice)

Free

Who first proposed the concept that simple organic molecules could form spontaneously from simpler raw materials?

A) Miller and Urey
B) Charles Darwin
C) Thomas Malthus
D) Watson and Crick
E) Oparin and Haldane

Answer