Question 1

The expression of the microRNA miR-4423 is ____ in lung tumors, and ____ its expression can decrease tumor size, suggesting that a decrease in miR-4423 contributes to lung carcinogenesis.

Accepted Answer

A)  increased; increasing 
B)  decreased; increasing 
C)  increased; decreasing 
D)  decreased; decreasing 
E)  increased; preventing

Question 2

A ____ feedback control system functions when a change in the internal environment triggers the body to oppose the change and restore the normal environmental conditions.

Accepted Answer

A)  positive 
B)  physiological 
C)  reflex 
D)  negative 
E)  anatomical

Question 3

For changes that occur in response to environmental conditions, changes in gene expression are most likely due to ____, while changes in DNA sequence are more likely due to ____.

Accepted Answer

A)  evolutionary adaptation; acclimatization 
B)  evolutionary adaptation; acclimation 
C)  evolutionary adaptation; biorhythms 
D)  acclimatization; evolutionary adaptation 
E)  acclimation; evolutionary adaptation

Question 4

Match between columns
                        Premises: axon terminals
axon
nucleus
dendrites
cell body

Accepted Answer

The Answer of A and E and B and C is...

Question 5

Why are both blood and bone considered connective tissue?

Accepted Answer

The answer of Why are both blood and bone considered...

Question 6

The lymphatic system is composed of lymph nodes and ducts, the spleen, thymus, bone marrow, and white blood cells, all of which are central players in defending the body against microorganisms and viruses.

Accepted Answer

A) True 
 B)False

Question 7

Which organ system(s) play role(s) in eliminating metabolic wastes from the body?

Accepted Answer

A)  excretory system only 
B)  respiratory system only 
C)  nervous system only 
D)  excretory and respiratory system 
E)  excretory, respiratory, and circulatory system

Exam 38: Introduction to Animal Organization and Physiology

The expression of the microRNA miR-4423 is in lung tumors, and its expression can decrease tumor size, suggesting that a decrease in miR-4423 contributes to lung carcinogenesis.

A ____ feedback control system functions when a change in the internal environment triggers the body to oppose the change and restore the normal environmental conditions.

For changes that occur in response to environmental conditions, changes in gene expression are most likely due to , while changes in DNA sequence are more likely due to .

Figure 38.1 Answer the question using the accompanying figure. Identify the components of a neuron.

Why are both blood and bone considered connective tissue?

The lymphatic system is composed of lymph nodes and ducts, the spleen, thymus, bone marrow, and white blood cells, all of which are central players in defending the body against microorganisms and viruses.

Which organ system(s) play role(s) in eliminating metabolic wastes from the body?