4. Name two nineteenth century scientists-one who developed the laboratory burner

in common use today, and the other who studied the spectra of colored flames

produced by a variety of elements,

Which connective tissue is composed of loosely arranged reticular fibers and lymphocytes?

What is the basic unit for measuring time

Which of the following is not a measurement taken by a radiosonde? atmospheric composition atmospheric pressure wind speed wind direction

Which structure in the diagram does the fungus use to reproduce sexually? A. sporangium B. spores C. hyphae D. both (A) and (B)

Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet their effect on gene expression can last for several generations.

Many animals such as goats, deer, and cattle have horns or antlers. What purpose do these structures serve? Question 7 options: They are used for ornamentation and for attracting a mate.

Which of the following is not a characteristic shared by all chordates? fins hollow nerve chord pharyngeal pouches notochord

Alicia is not sure of the difference between a food web and a food chain. write a paragraph for alicia that explains the difference between a food web and food chain.

The distance north or south from the equator

The narrowest taxon in the Linnaean system is the genus, order, or species