An Introduction To Life On Earth - Biology Life | Biology+

Course

Introductory Biology

Study Pack

Set 1: An Introduction to Life on Earth

Set 2: Atoms, Molecules, and Life

Set 3: Biological Molecules

Set 4: Cell Structure and Function

Set 5: Cell Membrane Structure and Function

Set 6: Energy Flow in the Life of a Cell

Set 7: Capturing Solar Energy: Photosynthesis

Set 8: Harvesting Energy: Glycolysis and Cellular Respiration

Set 9: Cellular Reproduction

Set 10: Meiosis: the Basis of Sexual Reproduction

Set 11: Patterns of Inheritance

Set 12: Dna: the Molecule of Heredity

Set 13: Gene Expression and Regulation

Set 14: Biotechnology

Set 15: Principles of Evolution

Set 16: How Populations Evolve

Set 17: The Origin of Species

Set 18: The History of Life

Set 19: Systematics: Seeking Order Amid Diversity

Set 20: The Diversity of Prokaryotes and Viruses

Set 21: The Diversity of Protists

Set 22: The Diversity of Plants

Set 23: The Diversity of Fungi

Set 24: Animal Diversity I: Invertebrates

Set 25: Animal Diversity II: Vertebrates

Set 26: Animal Behavior

Set 27: Population Growth and Regulation

Set 28: Community Interactions

Set 29: Energy Flow and Nutrient Cycling in Ecosystems

Set 30: Earths Diverse Ecosystems

Set 31: Conserving Earths Biodiversity

Set 32: Homeostasis and the Organization of the Animal Body

Set 33: Circulation

Set 34: Respiration

Set 35: Nutrition and Digestion

Set 36: The Urinary System

Set 37: Defenses Against Disease

Set 38: Chemical Control of the Animal Body: the Endocrine System

Set 39: The Nervous System

Set 40: The Senses

Set 41: Action and Support: the Muscles and Skeleton

Set 42: Animal Reproduction

Set 43: Animal Development

Set 44: Plant Anatomy and Nutrient Transport

Set 45: Plant Reproduction and Development

Set 46: Plant Responses to the Environment

Set 1 An Introduction To Life On Earth

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Set 1 An Introduction To Life On Earth

(Multiple Choice)

Free

Which of these would be an example of a NON- scientific study?

A) A study determines differences in the species composition in two parks.
B) A company uses different advertising methods for a product to determine which one produces the most sales.
C) NASA sends tadpoles up in the space shuttle to see how gravity affects their development.
D) People are immunized with different vaccines to determine their relative effectiveness against the flu virus.
E) Consumers are asked which tomato variety produces the best- tasting spaghetti sauce.

Answer

(Multiple Choice)

Free

Imagine that 1 milliliter of an experimental drug diluted in a saline solution is injected into 20 pregnant mice to determine possible side effects. Which of the following is a suitable control for this experiment?

A) 20 pregnant mice injected with 2 milliliters of the drug
B) 20 non- pregnant mice injected with 1 milliliter of the drug
C) 20 male mice injected with 1 milliliter of the drug
D) 20 pregnant mice injected with 1 milliliter of saline
E) 20 male mice injected with 1 milliliter of saline

Answer

(Multiple Choice)

Free

A carefully formulated scientific explanation that is based on extensive observations and is in accord with scientific principles is called a

A) hypothesis.
B) theory.
C) control.
D) postulate.
E) fact.

Answer