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Relations in a food web
Biotic and Abiotic
Short and long term changes
Humans depend on Oceans
Random Science
100
What is a food chain? Give an example or definition.
A single path of energy transferring from one organism to the next.
100
What does Biotic mean?
Living or once living.
100
Long term environmental changes leads to what kind of changes...
Physical changes in an organism.
100
True or false: Humans depend on the ocean in many ways.
True
100
How many Valence electrons does Carbon have?
4
200
What is a food web? Give example or definition.
Overlapping food chains. When you have organisms giving or getting energy from more than one organism.
200
What does Abiotic mean?
Non-living...
200
Short term environmental changes leads to what?
Seasonal changes...
200
True or False: At least 50% of the oxygen humans breathe come from marine plants.
True
200
What is the difference between a subscript and a coefficient?
A subscript is the small number after the element telling how many atoms of that element. A coefficient is the big number in front of chemical formula telling how many of that formula.
300
Describe a producer/consumer relationship in a food web?
The producer is a plant and the consumer is the organism eating the plant.
300
Give 5 examples of abiotic factors.
Air, soil, Sunlight, water, temperature, wind, rocks...
300
What is an example of a short term environmental change?
Hibernation, diapause, migration, physical adaptation, behavioral adaptation
300
True or False: Human activity does not have negative consequences on the ocean system.
False: Human activity has many negative consequences on the ocean system.
300
What is an unbalanced force
Causes a change in motion
400
Describe a parasite/host relationship in a food web?
The parasite is the organism that feeds off the host, taking blood for example. The host is the organism that is providing the energy (blood) for the parasite.
400
How do plants compete for sunlight and water? Be sure to explain both.
Plants compete for sunlight by growing taller toward the sun. Plants complete for water through their roots.
400
What is an example of a long term environmental change?
Natural selection such as the giraffe's long neck surviving over generations instead of the short neck giraffe. A catastrophic event such as pollution, fire, floods, buildings, or volcano's that change the land where an ecosystem existed.
400
What are some examples of how humans negatively impact the ocean?
Pollution from chemical, fertilizers, and waste are carried to the ocean by runoff. Overfishing or overharvesting
400
Explain energy transformation in a flashlight...
Chemical energy to electrical energy to light energy
500
Describe a predator/prey relationship in a food web..
A predator is the organism that hunts and kills. The prey is the organism that is hunted and killed.
500
An increase in competition results in what?
1. Decrease in population 2. Decrease in resources 3. Need for adaptation
500
What is the difference between a physical and behavioral adaptation?
Physical adaptation is one in which changes the appearance of the organism, such as thicker fur, waxy coating on a cactus, spines on plants... Behavioral adaptation is one in which the organism changes their actions to survive, such as hibernate, migrate, playing dead, or eating different foods.
500
What can human's do to positively impact ocean life?
Human activity has disrupted the health of many natural reefs. Human's have placed artificial reefs in the ocean to replace the natural reefs for organisms to call home.
500
How do astronomers gather information about space?
Electromagnetic spectrum