Question

1. In a population, two birds with obvious differences in their plumage successfully mate and produce viable, fertile offspring. Using the biological species concept, explain whether these two birds would be defined as a single species.

2. The following Linnaean classifications are listed alphabetically: class, family, genus, kingdom, order, phylum, and species. Re-order these classification names beginning with the category that includes the largest number of organisms and ending with the category with the least number.

3. A researcher boils water for a short period of time, after which the water is checked for the presence of living cells. When it is determined that no active, living cells are present, the water is used to make agar, a media used for bacterial growth. Within 48 hours there are numerous colonies of cells growing on the agar. What type of prokaryote is growing? Why was the organism not detected in the water?

4. What role do pili serve in the formation of a biofilm?

5. What is distinctive about how the members of kingdom Protista are grouped together? How is this different from the way other eukaryotic kingdoms are composed?

Answer 1

Question 1

According to the biological species concept, the species can be define as group of organism that can breed or mate and produce fertile offspring.

Question 2

The classification of organism from largest group of organism to smallest number of organism are:

Kingdom

Phylum

Class

Order

Family

Genus

Species

Question 3

The prokaryote that is archea. They are not detected in the water because archea can tolerate wide range of temperature. So , they do not get kill in the hot water.

Question 4

The role of pili in biofilm preparation is attachment and microcolonial formation.

Question 5

Distinctive feature of protist are:

I. Some reproduce by asexual mode of reproduction and some by sexual mode of replication.

II. Some have cell wall while some do not have cell wall.

III. Some are autotrophic and some are heterotrophic.