The rationale behind the construction of phylogenetic trees is based on ________.
A. comparisons made between organisms based on their protein composition identified by MALDI-ToF mass spectrometry
B. comparisons between microorganisms that occupy different ecological niches
C. differences in morphological and physiological characteristics between organisms
D. the evolutionary relationship between organisms determined by aligning nucleotide sequences and identifying divergence events
Answer: D
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A plant sustains pathogen-induced damage to one of its cell walls. A gene-for-gene response soon follows and the tissue surrounding the injury soon dies. Which signaling molecules facilitated this response?
A. Oligosaccharins B. Ethylene C. Gibberellins D. Auxins E. Abscisic acid 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 injury response in plants? How does it relate to the question? 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?
Where in plant cells does the Calvin cycle take place?
What will be an ideal response?
Which of the following is correctly paired with its structure and function?
A) sclerenchyma — supporting cells with thick secondary walls B) ground meristem — protective coat of woody stems and roots C) guard cells — waterproof ring of cells surrounding the central stele in roots D) periderm — parenchyma cells functioning in photosynthesis in leaves
Protists move by
A. flagella. B. pseudopods. C. cilia. D. gliding mechanisms. E. All the choices are correct.