26 Jun csu bio110 unit 8 assessment
Question
Question 1
Which type of plant would be expected to suffer the most and the earliest during a drought?
Aloe
Corn
Dandelion
Crabgrass
5 points
Question 2
The increase in greenhouse gases in the atmosphere is most similar to which of the following phenomena?
Putting an extra blanket or two over yourself when you go to bed
Aiming a fan to blow warm air from one part of the room to another
Opening the vent in a greenhouse for increased ventilation on a hot day
Creating a fire by rubbing one stick against another
5 points
Question 3
The use of chemical pesticides may be reduced by ________.
a one-time, very strong treatment of pesticides
a reduction in the use of irrigation
the long-term utilization of integrated pest management
mulching and tilling the soil
5 points
Question 4
Why does a houseplant growing on a windowsill tend to grow towards the window?
This growth allows the plant to obtain moisture from the air outside.
This growth gives leaves maximum exposure for photosynthesis.
This growth allows the plant to obtain heat from the sun.
This growth gives leaves maximum exposure for respiration.
5 points
Question 5
Most of the dry weight of a plant is made up of carbon, oxygen, and hydrogen. The next most abundant element in a plant is likely to be ________.
Iron
Nitrogen
Zinc
sulfur
5 points
Question 6
Which of the following food items is actually a unique set of modified leaves?
Onion
Sweet potato
Oat grain
White potato
5 points
Question 7
Which of the following is considered a Monocot?
Pea
Tomato
Corn
Maple
5 points
Question 8
The United States represents less than five percent of the world’s population. However, it is responsible for ______ of the world’s carbon dioxide emissions resulting from burning fossil fuels.
25%
Less than one percent
10%
Over 50%
5 points
Question 9
Before deciduous trees go through abscission, they ________.
move nutrients stored in their roots up into their leaves
secrete pigments that cause their leaves to change color
open their stomata to eliminate excess water
stop making chlorophyll
5 points
Question 10
Cutting and burning forests in the tropics releases around ______ of the carbon dioxide added to the atmosphere each year.
only one percent or less
50% or more
more than 1% but less than 10%
25%
Plant Transpiration
Unit VIII Assessment
Introduction
If you have not already, you or someone you know will try to grow avariety of plants either inside your house or outside in a garden. What type of soil do you need? How often should you water the plants? Should you plant them in full sun? Why do some plants need less water and some more? These are questions that many people haveabout plants. In this activity, you will have a chance to manipulate different variables tosee how much water some plants use and how much some lose through transpiration.
Objectives
1. Conduct virtual experiments to determine factors that affect transpiration.
2. Compare and contrast sustainable and unsustainable farming practices.
Materials
Computer with internet access
Directions
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