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Q 1/16
Score 0
Which of the following ALWAYS results from a chemical reaction?
30
Fire
A new substance that can be solid, liquid, or gas
Bubbles
A new substance that is a solid
Q 2/16
Score 0
Which of the following is an example of a chemical reaction?
30
A powder dissolving to make hot chocolate
Burnt toast turning black when left in the toaster too long
A popsicle melting into a puddle
Wood being cut into smaller pieces
16 questions
Q.
Which of the following ALWAYS results from a chemical reaction?
1
30 sec
Q.
Which of the following is an example of a chemical reaction?
2
30 sec
Q.
Is grass biotic or abiotic?
3
30 sec
Q.
Is dirt biotic or abiotic?
4
30 sec
Q.
Is temperature biotic or abiotic?
5
30 sec
Q.
Is a single-celled organism biotic or abiotic?
6
30 sec
Q.
Is ice biotic or abiotic?
7
30 sec
Q.
The loa loa worm infects the human bloodstream and gets a comfortable home there. The human may go blind or have other complications as a result. Which symbiotic relationship is this?
8
30 sec
Q.
Pilot fish stay close to a shark. As a result, the pilot fish gets to eat the sharks scraps and leftovers. The shark isn't bothered by this. Which type of symbiotic relationship is this?
9
30 sec
Q.
A bumble bee gathers nectar from flowers. The flowers get pollinated in this process. Which type of symbiosis is this?
10
30 sec
Q.
Which of the following statements would be true about an increase in a population of squirrels?
11
30 sec
Q.
When would the size of a population of animals increase?
12
30 sec
Q.
When resources are limited, which of the following is true about competition between organisms?
13
30 sec
Q.
When would the size of a population of animals decrease?
14
30 sec
Q.
Deer and goats live in the same isolated meadow. Both the deer and the goats eat the meadow grass. It is their only source of food. Which of the following statements is TRUE?
15
30 sec
Q.
Which of the following statements about competition between plants is TRUE?
