When Rob Dunn began studying the organisms found in human belly buttons, he discovered many different types of bacteria and even a couple of archaeans. Determine if each statement below refers to bacteria, archaeans, both, or neither (match them)
1. Most Closely Related to Eukaryotes
2. Are examples of prokaryotes
3. Commonly found in humans
4. Often found in extreme environments
5. Contain a Nucleus
When Rob Dunn began studying the organisms found in human belly buttons, he discovered many different types of bacteria and even a couple of archaeans. Determine if each statement below refers to bacteria, archaeans, both, or neither (match them)
1. Most Closely Related to Eukaryotes
2. Are examples of prokaryotes
3. Commonly found in humans
4. Often found in extreme environments
5. Contain a Nucleus
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1.
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.
Lysosomes |
Endosomes |
Peroxisomes |
Nucleosomes 2. Biologists cannot possibly study all living species. Instead, they try to understand cell behavior by studying a select subset of them. Which of the following characteristics are useful in an organism chosen for use as a model in laboratory studies?
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