Question 1

Flowering plants originated during the

Accepted Answer

A)  Permian Period.
B)  Tertiary Period.
C)  Devonian Period.
D)  Cretaceous PerioD.
E)  Jurassic Period.F) A) and C)
G) C) and D)

Question 2

Select the statement that correctly describes differences among these four types of algae.

Accepted Answer

A)  Chlamydomonas reinhardtil and Gonium pectorale cells are biflagellate,Pleodorina californica and Volvox have no biflagellate cells.
B)  Chlamydomonas reinhardtil is single celled and biflagellate,while Gonium pectorale,Pleodorina californica and Volvox are multicellular with a single flagella on all cells.
C)  Chlamydomonas reinhardtil is single celled,Gonium pectorale is composed of identical cells,and Pleodorina californica and Volvox are composed of two different cell types.
D)  Gonium pectorale is single celled,Chlamydomonas reinhardtil is composed of identical cells,and Pleodorina californica and Volvox are composed of two different cell types.
E)  Chlamydomonas reinhardtil and Gonium pectorale cells lack flagella,while Pleodorina californica and Volvox have biflagellate somatic cells.F) B) and D)
G) B) and C)

Question 3

When you arrive at your biology lab,you notice that your lab bench is set up with containers of clay,Mg2+,and nucleotides.What hypothesis do you think you will be testing during the lab,and what is the purpose of the Mg2+?

Accepted Answer

A)  Formation of small organic molecules at deep sea vents;Mg2+ reacts with hot H2S
B)  Formation of complex organic polymers on the surface of clay;Mg2+ catalyzes bond formation between nucleotides and clay
C)  Formation of small organic molecules on the surface of clay;Mg2+ catalyzes bond formation between nucleotides and clay
D)  Formation of small organic molecules in a reducing atmosphere;Mg2+ catalyzes redox reactionsE) B) and D)
F) B) and C)

Question 4

The eukaryotic genome is comprised entirely of genes derived from Archean ancestors.

Accepted Answer

A) True 
 B)False

Exam 18: Origin and History of Life

Select the statement that correctly describes differences among these four types of algae.

Correct Answer
verified

Flowering plants originated during the

Correct Answer
verified

The eukaryotic genome is comprised entirely of genes derived from Archean ancestors.

Correct Answer
verified

When you arrive at your biology lab,you notice that your lab bench is set up with containers of clay,Mg²⁺,and nucleotides.What hypothesis do you think you will be testing during the lab,and what is the purpose of the Mg²⁺?

Correct Answer
verified

Exam 18: Origin and History of Life

Select the statement that correctly describes differences among these four types of algae.

Correct AnswerverifiedShow Answer

Flowering plants originated during the

Correct AnswerverifiedShow Answer

The eukaryotic genome is comprised entirely of genes derived from Archean ancestors.

Correct AnswerverifiedShow Answer

When you arrive at your biology lab,you notice that your lab bench is set up with containers of clay,Mg2+,and nucleotides.What hypothesis do you think you will be testing during the lab,and what is the purpose of the Mg2+?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When you arrive at your biology lab,you notice that your lab bench is set up with containers of clay,Mg²⁺,and nucleotides.What hypothesis do you think you will be testing during the lab,and what is the purpose of the Mg²⁺?

Correct Answer
verified