Advantages of retaining the young sporophyte as an embryo within the parent plant include
_____ The embryo is protected from desiccation.
_____ The embryo is able to quickly replicate, producing multiple copies that can be widely dispersed.
_____ The embryo is able to attain nutrients supplied by maternal tissues.
_____ The embryo is protected from pathogens.
_____ The embryo is protected from ultraviolet light.
__X__ The embryo is protected from desiccation.
_____ The embryo is able to quickly replicate, producing multiple copies that can be widely dispersed.
__X__ The embryo is able to attain nutrients supplied by maternal tissues.
__X__ The embryo is protected from pathogens.
__X__ The embryo is protected from ultraviolet light.
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Which of the following represents the true evolutionary history of a taxon?
A. monophyletic groups B. paraphyletic groups C. polyphyletic groups D. derived groups E. All of the of the answer options are correct.
The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, while a "1" indicates the derived condition. Based on this data, which pair of species diverged most recently?
A. 1 and 4
B. 2 and 3
C. 2 and 4
D. 6 and 4
E. 6 and 5
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?
Gather Content
· What do you already know about cladistics?
Consider Possibilities
· What other information is related to the question? Which information is most useful?
Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What is the most likely explanation of how 14 genes for globins, each specialized in their function (i.e., hemoglobin, myoglobin), arose in the genome of animals?
A. misaligned crossover B. gene deletion C. gene mutation D. misaligned crossover and gene mutation E. misaligned crossover and gene deletion
Yeast cells undergoing alcoholic fermentation produce
a. glucose. b. ethanol. c. H2O. d. all of the above.