Grasshoppers can be found in a forest that has green grass. Grasshoppers can either have green or yellow body colors.
What is the variation between the grasshoppers?
Variation means the difference in traits.
The variation is the body color (some grasshoppers have green bodies and others have yellow bodies)
Transcribe this DNA strand:
TGA CGT ACC
DNA RNA
A = U
T = A
C = G
G = C
Answer: ACU GCA UGG
What reactants are needed for photosynthesis?
Energy (light), carbon dioxide, and water
Carrots --> Rabbits --> Foxes
What is the name of the trophic level that the fox is in?
secondary consumer
Which statement concerning the energy in the energy pyramid is correct?
a. Stored energy decreases as it is passed from consumer to consumer.
b. The producer contains the least amount of energy.
c. Consumers contain more energy than producers.
d. Decomposers are the source of energy for this pyramid.
a. Stored energy decreases as it is passed from consumer to consumer.
Similar structures between organisms show a common ancestor. These structures are called _______________________ structures
homologous
Observe the original DNA and the mutated DNA.
Original DNA: TTACTGACG
Mutated DNA: TTATGACG
What type of mutation is shown?
deletion
If the primary consumer trophic level contains 2900 kCal of energy, how much energy do the Quaternary consumers have?
2.9 kCal
Algae->zooplankton->small fish-> large fish->birds.
Mercury (a pollutant) is passed through this food chain. Which organism is the first to absorb pollutants?
algae
Name two herbivores from this food web
Either of the following answers are acceptable:
field mouse, rabbit, or grasshopper
Which best describes natural selection?
A. Humans choose specific characteristics that they would want to see in organisms
B. Advantageous traits are inherited and passed on to offspring
C. Organisms adapt to their environment by acquiring traits
D. Mutations are caused when there are changes in the environment. This helps organisms to survive better in their environment.
B. Advantageous traits are inherited and passed on to offspring
Answer C is incorrect because organisms cannot change their traits to suit the environment
Translate the following mRNA strand:
UGC GGC ACU
Use the amino acid chart
Cys, Gly, Thr
What type of energy is released in cellular respiration?
ATP energy
Barnacles live on the skin of the whale. The whale is unaware that the barnacles are there, but the barnacles get free transportation. What is the relationship between the whales and the barnacles?
commensalism
Name an omnivore from the food web.
sparrow
Grasshoppers can be found in a forest that has green grass. Grasshoppers can either have green or yellow body colors.
What would you expect to see in the grasshopper population after 5 generations if continuous, severe droughts occur?
A. There will be more green grasshoppers because they are able to camouflage in the green grass.
B. There will be more yellow grasshoppers because there are more predators of the green grasshopper.
C. There will be an equal number of yellow and green grasshoppers.
D. More yellow grasshoppers will be born because it is the better adaptation against the dry, yellow grass.
Severe droughts would cause the grass to become dry, unhealthy, and yellow instead of green.
D. More yellow grasshoppers will be born because it is the better adaptation against the dry, yellow grass.
What are is the complementary DNA bases for this DNA strand below:CAG TCT AGT GTC
DNA DNA
A = T
T = A
C = G
G = C
Answer: GTC AGA TCA CAG
Name at least two processes where organisms release carbon back into the atmosphere and/or causes carbon to stay in the atmosphere.
1. Cellular respiration
2. Cutting down trees
3. Burning fossil fuels
What organisms help to reduce the amount of atmospheric carbon levels?
Producers
because they take in carbon dioxide from the atmosphere to complete photosynthesis
(Other acceptable answers: autotrophs, plants, or examples of plants)
A water plant was placed into a test tube with a snail. What does the snail provide the plant with to complete photosynthesis?
Carbon dioxide
Define adaptation.
An inherited trait that helps organisms to survive
Set timer to 2 minutes!
Translate this DNA strand - TAC GCG TGC ATT
Met - Arg - Thr - Stop
1. You must first transcribe DNA into an mRNA, which is AUG CGC ACG UAA
2. Then translate mRNA into amino acids, which is Met - Arg - Thr - Stop
Describe one reason why photosynthesis and cellular respiration are opposite processes.
1) Photosynthesis takes IN energy to make food while cellular respiration breaks down food to take energy OUT.
OR
2) The reactants of cellular respiration and the products of photosynthesis and vice versa.
What is the word equation for cellular respiration?
glucose + oxygen --> water + carbon dioxide + ENERGY(ATP)
Set the timer to 2 minutes
phytoplankton->small fish-> large fish->birds.
Mercury is passed through this food chain. Which organisms would be safer for humans to eat: a small fish or large fish? Explain your answer.
Small fish because they don't have as much mercury in their bodies since they are lower on the food chain.