• Home
  • Textbooks
  • Must Know High School Biology
  • Populations

Must Know High School Biology

Kellie Ploeger Cox

Chapter 28

Populations - all with Video Answers

Educators


Chapter Questions

00:47

Problem 1

Match the following term with the correct example:
\begin{tabular}{l|l}
\hline a. abiotic factors & 1. blue-ringed octopi can reproduce together and produce fertile offspring \\
\hline b. biotic factors 2. a sun-warmed nutrient-filled lake populated with a variety of fish and amphibians \\
\begin{tabular}{ll}
c. community & 3. all the red-tailed hawks that live on campus \\
d. ecosystem & 4. temperature, rainfall, wind, and nutrients \\
\hline e. population & 5. all the chipmunks, squirrels, and raccoons that live in a forest \\
\hline f. species & 6. plants, fungi, bacteria, animals, and protists
\end{tabular}
\end{tabular}

Sunshine Brosi
Sunshine Brosi
Numerade Educator
05:24

Problem 2

Which type of survivorship curve necessitates having a large number of offspring? Give an example of an organism with this type of curve.

Kadry Samuels
Kadry Samuels
Numerade Educator
02:09

Problem 3

Of the two growth curves, the S-shaped logistic model is more realistic. Explain why, and draw/label an example curve.

Khalida Dawar
Khalida Dawar
Numerade Educator
00:54

Problem 4

The glassy-winged sharpshooter houses two species of bacteria that, in turn, provide essential nutrients to the leafhopper. What kind of symbiosis is this an example of?

Lara Gossage
Lara Gossage
Numerade Educator
00:33

Problem 5

Choose the correct word from each pair: A population with a high/low death rate and a high/low birthrate would experience an overall increase in the population numbers. This population would most likely have an age structure with mostly young/old individuals.

Magdalena Bentia
Magdalena Bentia
Numerade Educator
01:25

Problem 6

Draw the three types of survivorship curves, and explain which one best describes large mammals.

VS
Vivek Singh
Numerade Educator
00:17

Problem 7

For each of the following examples, indicate whether it is a densitydependent liming factor (DD) or a density-independent limiting factor (DI):
a. A viral disease
b. Competition for mates
c. Volcanic eruption
d. Predation
e. Wildfire
f. Oil tanker spill in ocean
g. Clearcutting forest

Morgan Thompson
Morgan Thompson
Numerade Educator
00:54

Problem 8

The female "tongue-eating louse" removes and replaces a fish's tongue. In order for this to be an example of commensalism, what characteristic of the relationship must be true?

Lara Gossage
Lara Gossage
Numerade Educator