What organic molecules likely existed before the first cell?
A. nucleic acids
B. lipids
C. All answers are correct.
D. proteins
E. carbohydrates
Answer: C. All answers are correct.
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Some researchers think H. floresiensis is a
more common early human with a genetic or nutritional disorder. What other early human was thought of this way when their fossils were first discovered? a. H. neanderthalensis b. H. erectus c. H. sapiens d. H. ergaster e. H. habilis
Hemicellulose contains chains of xylose molecules
____________________ Indicate whether the statement is true or false.
Which category contains the greatest number of different types of organisms?
A. genus B. family C. phylum D. Class E. Kingdom
Which of the following statements about the pathogen-specific response is true?
A. There is never a gene-for-gene response. B. If the R gene product is not triggered, no disease will occur. C. Avr and R gene pairs have been cloned in species pathogenized by microbes, fungi, and insects. D. The pathways involved always trigger the hypersensitive response. E. The pathogen is recognized by its avr gene product.