2. How could the duck-billed dinosaur tooth fossil lead scientists to believe that plants also existed in Antarctica?

Give two reasons why cell theory is important.

Which study performed earlier this century established that the fourteenth-century black plague was spread from rats to humans via fleas? descriptive epidemiological experimental observational

Which of these natural resources is used for making rubber? A. sulfur B. copper C. titanium D. aluminum

The pulmonologist in a multispecialty group refers a patient to the otolaryngologist because he thinks that the shortness of breath that the patient is experiencing may be due to sinusitis and laryngopharyngeal reflux (LPR).

If you wanted to study dolphins and porpoises, which zone would you want to investigate? a. Bathyal b. Interidal c. Abyssal d. Sublittoral

Match the layer of the earth with its best description. 1. inner core a. plastic portion of the upper mantle of the earth 2. outer core b. made of large plates that move 3. lower mantle c. layer just outside of the outer core 4. upper mantle d.

Cells produce ATP both aerobically and anaerobically. One process is an integral part of aerobic respiration that produces the majority of ATP molecules is

An organism with at least one ___ for a particular form of a trait will exhibit that form of the trait

Base excision repair corrects DNA by A. removing a double-stranded fragment of damaged DNA. B. detecting, removing, and replacing damaged or incorrect nucleotides in a single strand of DNA. C. excising the incorrect base from a nucleotide D.

Which is an effective way to manage stress