Practice Test WGU Introduction-to-Biology Pdf, Valid Introduction-to-Biology Exam Experience

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WGU Introduction-to-Biology Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Genetics	25%	- DNA Structure and Replication - Mendelian Genetics - Gene Expression (Transcription, Translation) - Genetic Mutations and Disorders - Biotechnology - Modern Genetics and Heredity
Topic 2: Plant and Animal Biology	15%	- Plant Structure and Function - Animal Tissues and Organ Systems - Human Biology (Circulatory, Respiratory, Nervous, etc.) - Homeostasis
Topic 3: Evolution and Ecology	20%	- Natural Selection - Ecosystems and Biomes - Population Ecology - Speciation and Phylogeny - Conservation Biology
Topic 4: Biochemistry	15%	- Enzymes and Metabolism - Cellular Energy (ATP, Cellular Respiration, Photosynthesis) - Structure and Function of Biomolecules
Topic 5: Cell Biology	25%	- Cell Structure and Organelles - Cell Membrane Transport - Cell Communication - Cell Division (Mitosis, Meiosis)

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WGU Introduction to Biology (KBC1, C190) Exam Sample Questions (Q33-Q38):

NEW QUESTION # 33
Cells use ATP to power muscle contraction. During contraction, ATP is converted to ADP and inorganic phosphate. What is happening to energy in this conversion?

A. Energy is being destroyed.
B. Energy is being stored.
C. Energy is being released.
D. Energy is being created.

Answer: C

NEW QUESTION # 34
In a cross-fostering experiment, half of thepurple-featheredbarn swallow eggs were raised bygray-feathered swallows; upon maturity, fostered young weregray, while those raised by their purple parents werepurple.
What best explains these results?

A. Feather color is influenced byboth genes and environment
B. Genes in transplant parents determine feather color
C. Feather color follows codominance
D. Genes have no influence on feather color

Answer: A

NEW QUESTION # 35
The Mojave Desert is hot and dry. Roadrunners (endothermic, ground-dwelling birds) already have adaptations that reduce daytime heat gain. If average temperatures rise as predicted, how is theirplumagemost likely to change under natural selection?

A. Become lighter to increase reflection of heat
B. Become darker to absorb more environmental heat
C. Become longer to increase heat absorption
D. Become thicker to trap more heat

Answer: A

NEW QUESTION # 36
Thailand's rainforest area has decreased since the 1960s due to logging and land clearing for agriculture.
Which activity would continue to have a negative effect on biodiversity?

A. Increasing the use of renewable energy sources
B. Developing technologies that reduce chemical pollutants
C. Increasing the use of sustainable technologies in Thailand
D. Increasing the human population in Thailand

Answer: D

NEW QUESTION # 37
The humanMN blood groupis determined by two codominant alleles (MandN). In one family,alloffspring are MN. What are themost probable genotypesof the parents?

A. MN and MN
B. MM and MN
C. MM and NN
D. NN and MN

Answer: C

NEW QUESTION # 38
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