Biology Assignment

1) It is important to write scientific names correctly. What scientific name would you use to write your assignment? Answer letter ___________

a. Crassostrea virginica b. Lutra lutra c. Ulva lactuca d) escherichia Coli

2) What is considered the basic unit of life?

3) What is the basic difference between Prokaryotic and Eukaryotic cells?

4) I am describing a single-celled organism lacking a nucleus. Then I tell you that it leaves near deep-sea active volcanic openings preferring extreme acidic conditions and temperatures up to 400 degrees Celsius. If I ask you to classify it, you would start by Domain. Which domain?

5) If sugar levels drop in the blood, the body secretes a hormone that moves sugar into the blood. Living organisms can do this. This is an example of one of the seven characteristics of life. Which one?

6) Describe a virus:

7) Scientist who study fossils in the oldest rocks in the planet, calculate that the first forms of life in the planet originated approximately how long ago?

8) An example of a Prokaryotic cell is: ________________

An example of a Eukaryotic cell is :__________________

9) You are walking by the tidepools and observe sea stars feeding on oysters, and limpets feeding on algae, you are observing an example what level of organization?

10) In class we studied two different types of cells included in three domains.
Cyanobacteria (sometimes called “blue green algae”) have been in our planet since approximately 3.8 billion years ago, and we still find them alive in specific environments.
With the knowledge that you have acquired in this class, briefly (no more than one sentence) explain the reason for the term “Blue green algae” to be incorrect.