Q: Fact 1: Evolution occurs by a process called natural selection.  Fact 2: Adaptation and natural selection are discussed.  Given the two facts above, how does evolution occur? | OPTIONS:
- Plants growth
- by adaptation
- vitalism
- Plant reproduction
- theistic evolution
- competition
- orthogenesis
- mechanical
A: by adaptation

Q: Fact 1: Chordates have a complete digestive system and a closed circulatory system.  Fact 2: All chordates have jaws.  Given the two facts above, what has a complete digestive system and a closed circulatory system? | OPTIONS:
- graptolites
- Veins and arteries.
- sunlight
- graphite
- fur seals
- viruses
- animals with jaws
- Most plants
A: animals with jaws

Q: Fact 1: Chordates have a complete digestive system and a closed circulatory system.  Fact 2: Vertebrates are members of of a larger group, the chordates .  Given the two facts above, vertebrates have a complete digestive system and a what? | OPTIONS:
- Veins and arteries.
- lack of backbone
- bruised brain stem
- critical organs
- closed circulatory system
- incomplete circulatory system
- characteristics
- sensory neurons
A: closed circulatory system

Q: Fact 1: Evolution occurs by a process called natural selection.  Fact 2: Speciation is an extension of evolution.  Given the two facts above, what occurs by a process called natural selection? | OPTIONS:
- competition
- root growth
- mitosis
- meiosis
- speciation
- cellular respiration
- Plants growth
- Animal survival

A: speciation