Four of the five kingdoms of organisms were apparent to the earliest scientists of Aristotle's time, and the fifth kingdom became apparent with the invention of the microscope.
a. true
b. false
Ans: b. false
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Which feature unites paramecia, malarial parasites, and dinoflagellates into a single group?
A. The use of cilia B. A parasitic life style C. The presence of a nucleus D. The type of ribosomes E. The possession of alveoli Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about each of these three groups? How does it relate to the question? · 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?
This phylum of vascular, seed-bearing plants has about 550 known living species, the most among
gymnosperms. Many of them have needlelike leaves with thick cuticles and sunken stomata, and are thus adapted to dry conditions.
a. Cycadophyta b. Anthophyta c. Gnetophyta d. Coniferophyta e. Ginkgophyta
Which statement best describes the purpose of DNA profiling?
DNA profiling amplifies a specific sequence of DNA. DNA profiling is done to detect specific sequences of DNA. DNA profiling is done to determine the sequence of nitrogenous bases in DNA. DNA profiling is done to demonstrate patterns of DNA fragments in a gel that are unique to an individual organism.
An organism with a haploid number of 10 will produce ________ combinations of chromosomes at the end of meiosis
A) 1024 B) 10,000 C) 10 D) 32 E) 100