Plants and People
As plants decompose, they add nutrients to the soil. Plants also help in preventing _____ ____________.
Soil erosion
What are 3 ways to control weeds and pests?
1. Biological Controls
2. Chemical Controls
3. Manual Controls
Name one type of pollinator
Insects, animals, people, wind, water, etc.
What part of the plant is responsible for absorbing water and dissolved nutrients. It also anchors the plant to the ground.
The roots
What are the 3 types of soil? Give me the characteristics of ONE type.
1. Sandy
2. Clay
3. Loam
Name two products that are created by plant fibers
Answers vary
Could include: Clothing, paper, thread, etc.
What are 2 factors that help to break down the parent material?
Climate
Chemical weathering
Living organisms
Water
Wind
Reproduction without seeds is also known as ____________?
Asexual reproduction
What part of the plant contains reproductive parts in angiosperms.
Flowers
What is the definition and an example of an unintended consequence?
These are outcomes that are not intended by a purposeful action.
Example: bees dying from the use of pesticides to kill other insects.
What are 3 different ways humans use plants?
1. Food
2. Fiber
3. Medicine
Give an example of biomagnification
Answers will vary.
Plant that has been sprayed with chemicals -> grasshopper eats plant -> bird eats grasshopper -> snake eats bird.
In order for plants to grow to their full potential they need the right conditions. These 3 conditions are?
1. Light
2. Water
3. Nutrients
_____________ is the movement of water particles from an area of high water concentration to an area of low water concentration through a selectively permeable membrane.
Osmosis
This systems are used to water crops.
In order to have these systems we need to move water from other locations.
This causes depletion of water in aquifers, rivers, etc.
Irrigation
Name two ways that plants can be used to help humans with transportation
Answers vary
Could include: Rubber for tires, wood to make canoes and sleds, fibers to tie sleds together
This is a chemical used to kill select insects.
Benefits:
Kills unwanted plants in crops, leading to higher yields.
Helps prevent invasive species.
Pesticides
This reproduction process happens when you attach a part of one plant to another plant. These two plants “fuse” together.
Grafting
When only certain things are allowed to pass through a membrane, that membrane is called _______ _________ ___________
Selectively Permeable Membrane
What happens when too much fertilizer is used?
Excess fertilizer goes into water runoff, ending up in bodies of water. An increase of fertilizer in water can lead to an increase in algae growth.
What 4 major things do plants provide for the environment?
1. Oxygen
2. Shelter
3. Food
4. Build and protect soil
This structure has tiny holes in the leaves of plants that open and close.
Stomata
Roots from the parent plant grow horizontally. From this root, new plants grow. This process is called...?
Root Runners
_____________ is when the movement of particles go from an area of high concentration to an area of low concentration.
Diffusion
What are the 4 types of sustainable agricultural practices? Define 1 of them.
1. Crop Cover
2. Crop Rotation
3. Agroforestry
4. Buffer Zones