Echinoderms and chordates are thought to be related because ____
a. both have embryonic cells with spiral cleavage
b. both have embryonic cells with radial cleavage
c. both have amniote eggs
d. they lived at the same time
e. both have embryonic cells with nested cleavage
b
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Is a cold front or warm front shown in Map A?
Two hypothetical weather maps in the Northern Hemisphere are shown here. Using the appropriate symbols, draw in the position of the front on each map (one map shows a cold front, and the other a warm front). Top of each map is north.
What will be an ideal response?
Explain the effects of composition, pressure, and temperature on rock strength
What will be an ideal response?
With the Sun and Moon in this position, what does the side of the Earth facing the moon experience?
A. a neap tide B. a spring tide C. a normal low tide D. a normal high tide
A(n) ________ is an elongated zone of lower pressure between two areas of high pressure
A) storm B) anticyclone C) trough D) cyclone E) ridge