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WorksheetsSpring 24 Bio BM 2 - Sem 2
Total questions: 26
Worksheet time: 29mins
The parents of a new baby believe they brought the wrong child home from the hospital. Gel electrophoresis was performed using DNA samples from the parents and the child. A section of the gel
electrophoresis results is shown below. Which conclusion is valid based on the gel electrophoresis results?
They have the correct child, because her genetic information is identical to that of the father.
They have the wrong child, because her genetic information does not match that of either parent.
They have the correct child, because her genetic information came from both parents.
They have the wrong child, because her genetic information matches only that of the mother.
What statement is TRUE about the graph?
The prey is the green line because there needs to be more prey than predators.
The prey is the red line because there needs to be more predators than prey.
What converts nitrogen gas into a usable form for plants and animals?
bacteria
rain
fungi
car exhaust
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in secondary consumers?
10 Kcal
1 Kcal
100 Kcal
1000 Kcal
Which of the following might immediately occur if the frog were removed from the ecosystem?
The grasshopper population would increase, causing the plantain population to decrease
The rabbit population would decrease, causing the plantain population to increase
The butterfly population would decrease causing the berries population to increase.
The berry population would decrease causing the greenfly population to decrease
Which organism in the food web shown to the right would
contain the highest concentration of chemical pollutants?
Producers
Primary consumers
Secondary consumers
Tertiary consumers
How do pioneer species compare in primary and secondary succession?
primary starts with grass and weeds, secondary starts with mosses
primary starts with forest fire, secondary starts with volcano
primary starts with a volcano, secondary starts with a forest fire
Lichens and moss in primary, and grasses/ ferns in secondary
The end result of ecological succession is usually a(n)
A.land biome.
B.aquatic biome.
C.unstable community.
D.climax community.
What harmful health effects do scientist say that the UV radiation that passes through the hole in our ozone layer will cause?
increase in skin cancer
eye damage
immune deficiencies
all of the answers
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Scientists are using this as evidence of climate change. Which reason best explains this increase in temperature?
lower levels of ozone in the atmosphere
lower levels of nitrogen in the atmosphere
higher levels of greenhouse gases in the atmosphere
higher levels of oxygen in the atmosphere
individuals with alleles for an extreme type are more likely to survive and reproduce
stabilizing selection
directional selection
disruptive selection
genetic drift
Choose the Type of Selection this represents: Panthers with teeth that are too short have difficulty capturing prey, while panthers with teeth that are too long have difficulty chewing their food
Directional
Stabilizing
Disruptive
List the 4 closest human relatives based on this biochemical comparison.
A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:
the green population to increase and the yellow to decrease
both populations should stay the same
both populations will increase
the green population to decrease and the yellow to increaseThis is a wrong answer
