Chapter 1

Which kingdom includes both unicellular and multicellular organisms?

• Archaea

• Protista

• • Eukarya

• Bacteria

• Plantae

The scientific method:

• • begins with the hypothesis.

• begins with observations.

• • ends after the experiment.

• • does not require a hypothesis.

• • ends with the predictions.

All the chemical reactions that occur in a cell are collectively called

• • cellular respiration.

• • photosynthesis.

• metabolism.

• • meiosis.

• • mitosis.

Simon is an avid gardener who spends a lot of time caring for the plants in his garden. To minimize damage from pests from his garden, Simon uses a pesticide spray. After a few years of using the same pesticide spray, he notices that it has become less effective. This is most likely due to?

• • using the spray incorrectly.

• evolution by natural selection.

• • the plants in the garden evolving.

• • the plants maintaining homeostasis.

• • something else in the environment.

Based on the evolutionary tree of the three domains, which of the following statements is true?

• • The Eukarya are the common ancestor to the three domains.

• • All three domains are equally related to one another.

• • The Eukarya have remained the same throughout evolutionary time.

• All three domains have a common ancestor.

• • Domain Bacteria and domain Eukarya are more closely related to each other than to domain Archaea.

Which of the following correctly lists the classification categories from least to most inclusive?

• species, genus, family, order, class, phylum, kingdom, domain

• • species, genus, family, class, order, domain, phylum, kingdom

• • kingdom, phylum, domain, class, order family, genus, species

• • phylum, species, genus, kingdom, domain, order, class, family

• • domain, kingdom, class, order, family, phylum, genus, species

The process of ________ leads to organisms that are ________ that environment.

• natural selection; adapted to

• • adaption; evolved for

• • natural selection; perfect for

• • adaptation; only found in

• homeostasis; suited to

Many insects cannot see the color red, and as a result many insect-pollinated flowers are colors other than red (e.g., purple and yellow). Flower color would be considered a(n)

• • example of energy flow.

• • example of nutrient cycling.

• • way to maintain metabolism. 

• adaptation.

• • method for maintaining homeostasis.

Living organisms must constantly take in energy in order to power functions necessary to remain alive. All of the chemical reactions that involve energy conversions within a cell are called

• • respiration.

• • homeostasis.

• photosynthesis.

• metabolism.

• • evolution.

Which of the following correctly lists the levels of biological organization from simplest to most complex?

• • organs, organ system, organism, cells, tissues

• • cells, organs, tissues, organ systems, organism

• cells, tissues, organs, organ systems, organism

• • organ systems, tissues, cells, organism, organs

• • tissues, organs, organ systems, organism, cells