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Energy Pyramids & Trophic Levels
Asexual vs. Sexual
Natural & Artificial Selection
Ecosystem Sustainability
Levels of Organization
100

This is the first trophic level in an energy pyramid.

Producer
100

Asexual reproduction involves __ parent(s). 

1 parent

100

A triangle has angles measuring 30 degrees and 40 degrees. What is the measure of the third angle?

110 degrees

100
(30/5) + 2 * 3^2 =
24
100
If there are 6 boys and 3 girls, what is the ratio of girls to boys in lowest form?
1:2
200

Herbivores are also called this in a food chain. 

Primary Consumers

200

Strawberries and potatoes reproduce asexually using these structures.

Vegetative Propagation 

200
An angle greater than 0 degrees but less than 90 degrees
Acute
200
(5 * 3)6 + 8/2 - 6 +3 =
91
200
Simplify: 16:4
4:1
300

In an energy pyramid, only this percent of energy is passed from one level to the next. 

10%

300

Offspring from sexual reproduction are __________ compared to their parents. 

Generically different 

300
I have 1 right angle, 2 other equal angles always of 45°, and 2 equal sides
Isosceles triangle
300
4 + 2(8^2 -4) - 20/2 =
470
300
Solve for x to make these proportional: 5/6 = x/36
x = 30
400

A hawk is an example of this type of consumer because it eats secondary consumers. 

Tertiary Consumers

400

Bacteria reproduce by splitting into two identical cells in this process.

Binary Fission 

400
A 180 degree angle is called a ________ angle.
Straight
400
5*2 + 10 -3 * 5^2 =
-55
400
Simplify: 144:60
12:5
500

If all primary consumers were removed from an ecosystem, the population of this level would increase first. 

Producers

500

Over many generations, natural selection can lead to the development of new species in a process called ______. 

Evolution

500
Angles that adding up to a total of 90°
Complementary Angles
500
5*4 (10*2) + 6 =
406
500
Last week Bill earned $210 for a 30-hour week. What was his pay rate? What would he have earned for a 40-hour week?
Pay rate = $7/hour In a 40-hour week Bill would have earned $280.