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Eighth Grade (Grade 8) Biology Questions

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Grade 8 Respiration, Digestion, and Excretion
The process by which an organism gets rid of waste materials is
  1. ingestion.
  2. digestion.
  3. respiration.
  4. excretion.
Grade 8 DNA, RNA, and Genetics
Passing traits from parents to offspring is called
  1. genetics.
  2. heredity.
  3. evolution.
  4. genes.
Grade 8 Human Reproduction
Which process involves the development and maturation of sex organs?
  1. fertilization
  2. puberty
  3. menstruation
  4. ovulation
Grade 8 Human Reproduction
Grade 8 Cell Structure and Function
Grade 8 Human Reproduction
Grade 8 Food Chains and Webs
Grade 8 Conservation and Biodiversity
The illegal killing or removal of wildlife from their habitats is known as
  1. poaching
  2. habitat destruction
  3. habitat fragmentation
  4. deforestation
Grade 8 Cell Structure and Function
Grade 8 Human Reproduction
Grade 8 Cell Structure and Function
Lysosomes in the cell work to
  1. get rid of waste
  2. give us protein
  3. store all information
  4. transport materials
Grade 8 Biochemical Pathways
Which of the following statements correctly describes a primary distinction between respiration and photosynthesis?
  1. Photosynthesis needs oxygen, while respiration needs water
  2. Photosynthesis needs carbon dioxide, while respiration needs oxygen and sugars
  3. Photosynthesis makes oxygen, while respiration makes water
  4. Photosynthesis makes water, while respiration makes carbon dioxide
Grade 8 Evolution
The theory that life could spring from nonliving matter is called
  1. spontaneous generation.
  2. asexual reproduction.
  3. homeostasis.
  4. stimulus/response.
Grade 8 Cell Structure and Function
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