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WGU Introduction-to-Biology Exam Syllabus Topics:

Section	Weight	Objectives
Evolution and Ecology	20%	- Population Ecology - Speciation and Phylogeny - Natural Selection - Conservation Biology - Ecosystems and Biomes
Biochemistry	15%	- Cellular Energy (ATP, Cellular Respiration, Photosynthesis) - Enzymes and Metabolism - Structure and Function of Biomolecules
Genetics	25%	- Modern Genetics and Heredity - Biotechnology - Genetic Mutations and Disorders - Gene Expression (Transcription, Translation) - DNA Structure and Replication - Mendelian Genetics
Plant and Animal Biology	15%	- Animal Tissues and Organ Systems - Homeostasis - Plant Structure and Function - Human Biology (Circulatory, Respiratory, Nervous, etc.)
Cell Biology	25%	- Cell Communication - Cell Membrane Transport - Cell Structure and Organelles - Cell Division (Mitosis, Meiosis)

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Introduction-to-Biology Questions Pdf, Introduction-to-Biology Hot Questions

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WGU Introduction to Biology (KBC1, C190) Exam Sample Questions (Q65-Q70):

NEW QUESTION # 65
The nucleus contains chromosomes that are replicated and passed to the next generation. One of the two macromolecules in chromosomes is themolecule of heredity. Which molecule is the hereditary material?

A. Proteins
B. DNA
C. Carbohydrates
D. RNA

Answer: B

NEW QUESTION # 66
A farmer breeds sheep fordisease resistanceandfine wool. After decades, the flock consistently shows both traits. Which evolutionary mechanism changed the flock's gene pool?

A. Sexual selection
B. Gene flow
C. Natural selection
D. Artificial selection

Answer: D

NEW QUESTION # 67
How isDNA organized during prophase, and why?

A. Uncondensed because it needs to move toward the poles
B. Uncondensed because it needs to be lined up at the center
C. Organized into paired chromatids to keep it lined up at the center
D. Condensed, which makes it easier to move

Answer: D

NEW QUESTION # 68
Which statement istrueof aprokaryoticcell?

A. It is found in plants, has chloroplasts, and its DNA is in a nucleus.
B. It is one of the smallest living cells, has a cell wall, and contains a nucleoid region.
C. It contains a nucleus and membrane-bound organelles.
D. It contains a nucleus but lacks a cell wall.

Answer: B

NEW QUESTION # 69
Caribou dig through snow to find food. Afterward, arctic foxes use the fresh holes to search for their own food. What interaction occurs?

A. Parasitism
B. Predation
C. Competition
D. Commensalism

Answer: D

NEW QUESTION # 70
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