The functional unit of a muscle is the

(A) actin.

(B) myosin.

(C) Z line.

(D) sarcomere.

If a sound wave speeds up and its frequency does not change, what happens to the wavelength?

Which of the following pairs with uracil in RNA? adenine thymine guanine cytosine RNA is single stranded AND found mainly in the nucleus. True False Which of the following is NOT true? DNA is found in the nucleus.

Which of the following are NOT examples of data?

Captured carbon dioxide can be used for different purposes. Food and beverage companies use 4 million metric tons (MMt) of carbon dioxide per year, which is 6% of all captured carbon dioxide.

Location of most volcanoes? A) island arc B) lava C) basalt D) magma E) hot spot F) plate boundaries

What did frederick griffith want to learn about bacteria?

Which type of chromosome alteration results in the formation of a tetravalent (cross-like) structure at synapsis?

When place in water eggs will float with the light side down. What is the advantage of this?

How is a warm front different from a cold front? Warm fronts cause snow flurries in the winter, while cold fronts cause several days of rainy weather. Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather.

Why do large winds circle earth