SCIN 130 Week 7 Quiz

SCIN 130 Week 7 Quiz | Assignment Help | APUS 

Week 7 Quiz

Question 1 of 31

When an endoderm feels cold, what does it do?

  A. sit on a rock

  B. nothing different

  C. lays down

  D. bask in the sun

Question 2 of 31

 What structure stores feces until defecation?

  A. rectum

  B. anus

  C. large intestine

  D. cecum

  E. colon

 Question 3 of 31

 How are hormone levels controlled?

  A. skewed feedback

  B. positive feedback

  C. negative feedback

  D. impartial feedback

 Question 4 of 31

 Where does the majority of fat digestion take place?

  A. small intestine

  B. large intestine

  C. stomach

  D. mouth

  E. esophagus

Question 5 of 31

 What is the momentary change in the electrical potential of a neuron membrane?

  A. cardiac cycle

  B. action potential

  C. interstitial fluid

  D. bicuspid valve

Question 6 of 31

 What kind of nutrient must be eaten, because it cannot be made by the body?

  A. auxiliary

  B. fundamental

 C. essential

  D. non-essential

Question 7 of 31

 Which plays a role in masticating food?

  A. tongue

  B. kidneys

  C. teeth

  D. pancreas

Question 8 of 31

 The heart is an example of what type of muscle tissue?

  A. cardiac

  B. skeletal

  C. smooth

  D. fibrous

 Question 9 of 31

 Which structure warms incoming air, adds moisture and removes particles?

  A. larynx

  B. pharynx

  C. nasal cavity

  D. trachea

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Question 10 of 31

 Barnacles live on the skin of whales, and catch plankton, etc. while the whale is swimming. The whale is not harmed nor gets any benefit. This is an example of what type of symbiotic relationship?

  A. commensalism

  B. mutualism

  C. biodiversity

  D. parasitism

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Question 11 of 31

 An oxpecker is a bird that lives on the backs of zebras and eats the parasites. The oxpecker gets food, and the zebra gets pest control. This is an example of what type of symbiotic relationship?

  A. parasitism

  B. biodiversity

  C. mutualism

  D. commensalism

.Question 12 of 31

 The human population is presently growing in what type of phase?

  A. exponential

  B. quadratic

  C. linear

  D. s-curve

Question 13 of 31

 Which method is best for estimating the population size of a snail?

  A. straightforward

  B. mark and recapture

  C. quadrat

  D. direct counting

 Question 14 of 31

 Toxins in foxglove are an example of what type of defense to herbivory?

  A. chemical

  B. biological

  C. legal

  D. mechanical

Question 15 of 31

 What is the maximum population size determined by what a particular environment can sustain?

  A. carrying capacity

  B. exponential growth

  C. logistic growth

  D. linear growth

Question 16 of 31

 Fleas live on many animals, taking advantage of a warm home as well as blood for food. The animal suffers with itches and loss of blood. This is an example of what type of symbiotic relationship?

  A. parasitism

  B. mutualism

  C. biodiversity

  D. commensalism

 Question 17 of 31

 Populations can be characterized by their size and what other factor?

  A. range

  B. breadth

  C. density

  D. magnitude

.Question 18 of 31

 If the effective habitat size for the sea lion decreases due to urbanization, which would likely occur?

  A. The carrying capacity would decrease, as would the sea lion population.

  B. The carrying capacity would decrease, but the sea lion population would remain unchanged.

  C. The carrying capacity of the sea lion would remain the same, but the sea lion population would decrease.

  D. The carrying capacity of the sea lion would remain the same, and the sea lion population would remain the same.

Question 19 of 31

What is the maximum number of offspring in a population when resources are not limited?

  A. biotic potential

  B. near vulnerable

  C. extinction

  D. density dependent factors

.Question 20 of 31

 Blood can be considered what type of tissue?

  A. nervous

  B. muscular

  C. connective

  D. epithelial

!Question 21 of 31

 Homeostasis is influenced by what kind of feedback mechanism?

  A. positive

  B. negative

  C. neutral

  D. balanced

.

Question 22 of 31

 A data table of the faculty of the university is shown below. What is the total number of female Biological Sciences faculty at the University?

Total Female Faculty           Total Male Faculty

200     250

University Faculty   Female (%)    Male (%)

Biological Sciences  6          9

Business        2          4

Education      23        7

Engineering   3          11

Fine Arts        9          8

Health Sciences        16        8

Humanities    17        14

Physical Sciences     4          11

Social Sciences         9          13

Other  11        15

  A. 15

  B. 12

  C. 6

  D. 11

 Question 23 of 31

 The following data table indicates number of experiments you ran each day last week. What is the mean (average) number of experiments you ran per day last week?

Day     Experiments

Monday         5

Tuesday         6

Wednesday   2

Thursday       6

Friday 1

  A. 6

  B. 4

  C. 2

  D. 5

Question 24 of 31

A researcher squeezed a bulb as many times as possible in 30 seconds. The procedure was performed a total of ten times in succession. Which choice would you identify to be the most likely prediction for the number of squeezes in the 11th trial?

Trial    Squeezes

1          42

2          36

3          30

4          25

5          21

6          19

7          17

8          12

9          11

10        10

  A. 8

  B. 17

  C. 25

  D. 29

 Question 25 of 31

 What is the purpose of a DNA ladder in an agarose gel?

  A. To ensure you have DNA and not RNA

  B. To enable you to translate to protein

  C. To have a size comparison for your sample

  D. To make the gel aesthetically pleasing

.

Question 26 of 31

 From which park did the elephant whose DNA was under investigation come?

  A. Okapi Wildlife Reserve

  B. Bomu Wildlife Reserve

  C. Garamba National Park

  D. Amboseli National Park

Question 27 of 31

 These sources can be used to obtain elephant DNA EXCEPT?

  A. hair without root

  B. saliva

  C. bodily fluids

  D. tusks

  E. dung

Question 28 of 31

 Which pieces of DNA will travel farthest on an agarose gel?

  A. mammalian samples

  B. small pieces

  C. DNA ladders

  D. large pieces

 Question 29 of 31

 Approximately what percentage of African elephants are killed every year?

  A. 20%

  B. 50%

  C. 10%

  D. 40%

  E. 30%

 Question 30 of 31

 In a few sentences, what was the overall purpose of the lab for this week? You should include 1-2 sentences on the methods and then the overall reason.

Question 31 of 31

Please upload your completed Lab Packet for this week. Make sure your name is on the top in the space provided.