Input: Answer this question:
Which species have been on the Earth for the shortest amount of time?
OPTIONS:
- Humans
- Insects
- Fish
- Reptiles
Answer: Humans

*Question*: Although change in multicellular species usually takes thousands of years, some species of bacteria undergo major changes in just a few years. One reason for this difference is that these bacteria OPTIONS:
- are microscopic
- do not contain DNA
- reproduce very quickly
- cause infectious diseases
*Answer*: reproduce very quickly

question:
Infections may be caused by
OPTIONS:
- mutations
- microorganisms
- toxic substances
- climate changes

answer:
microorganisms

[Q]: What is the first step in designing a product?
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OPTIONS:
- model a solution
- communicate the solution
- identify the need or want
- build a prototype
****
[A]: identify the need or want

question below:
Use the information below to answer the question. Each organism on Earth is a part of a complex relationship with other organisms. This relationship is called a food web. The following organisms are part of a food web typically located in and around a reservoir. algae fish rabbit eagle pine tree grass field mouse Which member of the food web is a carnivore?
OPTIONS:
- field mouse
- eagle
- rabbit
- algae
answer below:
eagle

Which of the following is a central role of carbon in the chemistry of living organisms?
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OPTIONS:
- Carbon can only bond with other carbon atoms.
- Carbon is a solvent that breaks chemical bonds.
- Carbon readily forms ionic bonds that separate easily.
- Carbon can form many types of molecules with covalent bonds.
Carbon can form many types of molecules with covalent bonds.