Which phylum are sponges classified in?
a. Platyhelminthes
b. Mollusca
c. Nematoda
d. Cnidaria
e. Porifera
e
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A polymer of N-acetyl-glucosamine, chitin, is a primary component to most fungal cell walls
Indicate whether the statement is true or false.
The greater the leaf area index (LAI) above the forest floor, the lower the quantity of light reaching the forest floor
Indicate whether the statement is true or false
In a hypothetical study, equal numbers of marked dark and light moths are released in polluted and unpolluted woodlands and recaptured 10 days later. According to the industrial melanism hypothesis, which of the following results is unexpected?
A. Fewer marked dark moths should be recaptured in unpolluted woodlands than in polluted woodlands. B. More marked dark moths should be recaptured in polluted woodlands than in unpolluted woodlands. C. Fewer marked light moths should be recaptured in polluted woodlands than in unpolluted woodlands. D. Fewer unmarked dark moths should be captured in polluted woodlands than unmarked light moths. E. More marked light moths should be recaptured in unpolluted woodlands than in polluted woodlands.
Which of the following happens when a new island arises from the ocean and life begins to colonize the island?
A) coevolution B) primary succession C) secondary succession D) competitive exclusion