Earth's Ecosystems

Pre-Algebra

Algebra / Alg2

Geometry

Integrated Science

100

What is an Ecosystem?

A system of things that work together. An Ecosytem consists of living an non-living things in an area that interact with one another.

100

Simplify: 5x^{2}y^{-3}

100

__ 2+4i__ +(5+3i)(4-3i)

1-i

Answer: 28

100

What is an Obtuse Angle?

An Angle between 90 and 180 degrees

100

On August 8, 2005 the temperature in New Haven, Connecticut, was 82 degrees Fahrenheit with partly cloudy skies. What term defines this description of New Haven's conditions?

A) Climate B) Weather C) biome D) ecosystem

**Answer: B. Weather**

200

If the producers of a particular ecosystem provide 10,000 joules of energy, how much of that energy would theoretically reach a tertiary consumer?

Answer: 10 joules

200

What is the conversion 239,000 to scientific notation

Answer: 2.39x10^{5}

200

John has traveled a total of 4.5 miles. If there are 5280 ft in a mile, howmany feet did John travel?

Answer: 23760 Ft

200

**Find the slope of the line with the following endpoints? A (-2,4) and B(8,10)**

Answer:

10 5

200

**Which major biome type contains the fewest of Earth's biodiversity?**

**A) Desert**

**B) temperature deciduous**

**C)grasslands**

**D) Rain forests**

**Answer: A. Desert**

300

How old is the SUN?

Currently in its most stable state, thesun is 4.5 billion years old, and is considered a main sequence star.

300

**A rectangular patio measures 12 feet by 15 feet. It has a circular fire pit in the middle which has a radius of 3ft. The patio is being paved in the brick. How many Square Feet will need to be paved? Leave the terms of pi**

**Answer: 180-9pi**

300

**If y represents a number, then write an expression for three - quarters of the difference of y and 8 **

Answer:

**3 **** (y-8)**

**4 **

300

**A circle has a radius of 2x+7 and a diamter of 72. What is the value of x?**

Answer:

**x=18**

300

Based on the chart which food is most likely caused the foodborne illness?

Answer: C Lettuce

400

There are 2 factors that are part of all ecosystems. What are these called?

Any living thing that is part of an ecosystem is a biotic factor.

Any non-living thing that is part of an ecosystem is an abiotic factor.

400

A rectangular patio measures 12 feet by 15 feet. It has a circular fire pit in the middle which has a radius of 3 ft. The patio is being paved in the brick. How many Square Feet will need to be paved?

400

Simplify the following expression: (x-3)(2x+7)-(x-3)(x-4)

Answer: Either (x-3)(x+4) or x^2+8x-33

400

**A circle has a radius of 2x + 7 and a diameter of 72. What is the value of x?**

**Answer: x = 15**

400

**Which structure(s) represent a first line defense against pathogens?**

A) skin

B)inflammation

C)lymphocytes

D)Phagocytosis by macrophages

500

In aquatic ecosystems, what are the different trophic levels in which energy flows through?

ALL 3 answers required

1. Producers

2. Consumers

3. Predator-Prey Interactions

500

500

Find the Equation of the line that passes through each pair of points in Form.

A(2,5) and B(5,17)

500

**Angle RSZ and Angle WST are vertical angles. If Angle RSZ = 6x + 24 and Angle ZST = 8x – 12, solve for x**

**Answer: x = 18**

600

Provide 3 example of gases in the atmosphere that are considered Greenhouse Gases.

Answer:

Carbon dioxide, methane, water vapor, ntirous oxide, fluorinated gases.

600

For what value of Y is 4(y-1)=2(y+2)?

a. 0

b. 2

c. 4

d. 6

Answer c

600

Solve for : 2x^3-5x^2-4x+3=0

600

**If Triangle MNP is similar to Triangle EFG, MN = 10, NP = 6, and MP = 14, which of the following is the ratio of EG to EF?a. 7/5b. 7/3c. 3/5d. 5/7**

**Answer: A. 7/5**

600

After having meningitis, Charlie temporarily loses his sight. What part of the nervous system may have been damaged?

A. Frontal lobe

B. Occipital lobe

C. Spinal cord

D. Hypothalamus

Answer: D. Hypothalamus

Click to zoom