Compare similarities and differences in internal structures of organisms (e.g., invertebrate/vertebrate, vascular/nonvascular, single- celled/multi-celled) and external structures (e.g., appendages, body segments, type of covering, size, shape).
Use evidence to explain how diversity affects the ecological integrity of natural systems.
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Q 1/5
Score 0
Which internal structures in humans have the MOST similar functions to that of xylem in maple trees?
60
veins and arteries, since they transport blood throughout the body
bones and muscles, since they are responsible for movement
lungs and skin, since they are involved in gas exchange
nerves and brain, since they respond to environmental stimuli
Q 2/5
Score 0
Tapholes for collecting maple syrup can scar the tree's trunk. Why do the offspring of tapped maple trees, called saplings, have unscarred trunks?
60
Scars are acquired traits, and saplings are unable to inherit acquired traits.
Scars are inherited traits, and saplings will develop scars as they age.
Scars are dominant traits, so a mutation must have occurred in saplings with
unscarred trunks.
Scars are recessive traits, so a sapling must receive the traits from both parents
to exhibit the trait.
5 questions
Q.
Which internal structures in humans have the MOST similar functions to that of xylem in maple trees?
1
60 sec
S8.B.1.1.2
Q.
Tapholes for collecting maple syrup can scar the tree's trunk. Why do the offspring of tapped maple trees, called saplings, have unscarred trunks?
2
60 sec
S8.B.2.2.1
Q.
Use the chart below to answer the question.
A biologist compares the behaviors of some fish that live in habitats with different amounts of salt. How do the behaviors shown MOST LIKELY help these fish survive in their environments?
3
60 sec
S8.B.2.1.1
Q.
Which statement BEST explains why a food web more completely represents the flow of energy through an ecosystem than a food chain does?
4
60 sec
S8.B.3.1.1
Q.
How can an increase in the diversity of producer and decomposer populations MOST LIKELY affect the stability of an ecosystem?
