Which of the following is not true regarding the structure of RNA?
a. RNA contains the same four nucleotide bases as DNA.
b. RNA contains ribose.
c. RNA is single stranded.
d. RNA in general is a helper to DNA.
e. There are different types of RNA, each with a different function.
Answer: a. RNA contains the same four nucleotide bases as DNA.
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An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________
A) spherical / rod shaped B) rod shaped / coiled C) spherical / coiled D) coiled / spherical
feature of mitochondria provides the least amount of information about their endosymbiotic origins?
A. Circular chromosome B. Mode of replication C. Independent replication D. Phospholipids in the membranes Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know mitochondria and endosymbiosis? How does it relate to the question? 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?
Shared homologous structures would indicate that two taxa are:a
polyphyletic. b. monophyletic. c. outgroups. d. in different clades. e. homoplastic.
A conservation group is deciding what land to preserve. Why might they want to consider an area of land where the ecosystem is partially damaged by a logging contract that cannot be overturned?
A. Conservation groups often focus of fixing damaged land and ecosystems. B. By making logging difficult, they strengthen environmentalism. C. When conservation groups choose land to preserve, they just consider what is best for the one target species that is endangered. D. Human activity often leads to the evolution of unique species that take advantage of the disrupted environment.