Biology Praxis II

Biology Praxis II Exam 1

1.       Which of the following is one of the most significant threats to the resources of the Sierra Nevada and Yosemite National Park? 

a.       global warming   

b.      invasive species   

c.       artificial light   

d.      air pollution

2.       Which of the following would be an imperfect flower?

a.       One that does not have sepals.   

b.      One that is found on a monoecious plant.   

c.       One that is staminate.   

d.      One that cannot self-pollinate.

3.       In which of the following types of organisms are genes inherited together (linked), because they cannot mix with genes in other organisms during reproduction?

a.       Asexual.   

b.      Sexual.   

c.       Polysexual.   

d.      Diploid.

4.       Which of the following is the term that refers to the action by which ingested material (chyme) moves through the intestine in an organized, wave-like motion? 

a.       Peristalsis.   

b.      Kinesis.   

c.       Action potential.   

d.      Extrusion

5.       Which of the following dissolves the minerals in soil and carries them into the root system? 

a.       Oxygen.   

b.      Water.   

c.       Organic matter.   

d.      Living organisms.   

6.       All of the following statements about European genetically modified maize are true EXCEPT: 

a.       it does not need to be labeled   

b.      it is resistent to the corn borer   

c.       it decreases the use of pesticides   

d.      it is mostly used as animal feed 

7.       Fruiting bodies of which of the following can produce fully developed mushrooms overnight? 

a.       Sac Fungi   

b.      Club Fungi   

c.       Yeasts   

d.      Zygomycota

8.       Once, ancient club mosses grew into huge trees up to 35 meters tall and some produced earth's first forests. The fossilized remains of these forests exist today as which of the following? 

a.       coal   

b.      petrified wood   

c.       rock   

d.      carbon   

9.       These are made up of most DNA, and sometimes RNA contained in a protein coat. 

a.       Viruses.   

b.      Bacteria.   

c.       Nucleotides.   

d.      A eukaryotic cell.

10.   A student does a bicep curl to contract his bicep muscle. Which motor protein works with actin microfilaments to cause muscle contraction? 

a.       Dynein   

b.      Myosin   

c.       Kinesin   

d.      Lamin    

More of the exam can be found [here] in the module or below in the Study Guide