Situational
source of energy for plants?
the sun
Organisms that cannot make their own food and eat other organisms are called
consumers
how does an isopod regulate its body temperature?
Hot and cold, movement
matter has _____ and ______.
mass and volume
Name a situation where energy is changed but not lost
anything relevant
All plants are (P/C/D?)
Producers
which of the following is a closed system?
cup of water in the dark
ziploc bag of chips
ziploc bag (airtight)
which one is the decomposer?
Bacteria
Eagle
Banana Peel
Bacteria
What is an ecosystem?
Community of living and non living things interacting
Name 6 consumers. ALL six organisms must be consumers to get credit for this question
any relevant consumers
Box Moisture Level Days until peel fully decayed
A Dry 25
B Damp 10
C Very Wet 8
Which box had the fastest decomposition, and what might explain it?
C, decomposers work better under moist conditions
A->B->C is a food chain.
Which Letter (A/B/C) is not consumed by any other organisms?
C
A new plant species spreads quickly and blocks sunlight to native plants. Name 2 negative effects this would have on the ecosystem.
affects growth of native plants
no food for consumers of the native plants
If decomposers were removed from an ecosystem, what would most likely happen?
plants wouldnt grow as well, less for consumer, ecosystem affected
Organism- Energy
1 Plants 5000
2 Grasshoppers 500
3 Frogs 50 J
4 Snakes 5
What pattern do you see in energy transfer, and what does it show about ecosystems?
Each level has less energy — energy is passed on but some is lost as heat or used by organisms.
When is a test called a fair test?
doing it multiple times and changing the factor that we are testing for
A student mixed two juices. Below is the mass of the juice before and after mixing.
Juice Starting Mass Mass After Mixing
A 40g 31g
B 32g 25g
Which juice was used more in the mixture? What do you think the mass of the mixture would be?
A, 16 g
A->B->C
This represents a food chain. What category of organisms would 'A' be?
producers
Two plants started at the same mass: 10 g each.
After 7 days: Plant A: 15 g, Plant B : 8 g
Which plant was in a CLOSED system and how can you tell?
B
Order the following from highest to lowest SPACE between the particles
gases, solids, liquids
gas, liquid, solid