In which biome would one most likely find xerophytic (dry-adapted) species?

Answer to #1

C

Answer to #2

D

Answer to #3

B

Answer to #4

Tides are the twice-daily oscillations in sea level. Tides are produced by the gravitational pull of both the Sun and the Moon, though the Sun's influence is only about half that of the Moon's due to its greater distance from the Earth. This gravitational pull affects the Earth's atmosphere, oceans, and lithosphere. The stretching large tidal bulges. The Earth's surface rotates into and out of the tidal bulges as the Earth changes its position in relation to the moon and sun. Every 24 hours, 50 minutes, any given point on the Earth rotates through two bulges as a result of this rotational position. As a result, coastal locations experience two high (rising) tides and two low (falling) tides, called flood tides and ebb tides respectively. The difference between consecutive high and low tides is the tidal range. The range is greatest when the Earth, Sun, and Moon are in conjunction or in opposition. This is the spring tide. When the Earth, Sun, and Moon are neither in opposition or conjunction, there is less tidal range called the neap tide.

Answer to #5

D

Answer to #6

E

Answer to #7

The ocean consists of three vertical layers. The mixing zone is the surface layer, which is warmed by the Sun and mixed via the action of wind. The mixing zone represents approximately 2 of the oceanic mass. In this layer, variations in water temperature and salinity vary. Below the mixing zone is the thermocline transition zone. This zone, which is more than 1 km thick, has a gradient of temperature that decreases with depth. There is also friction in this layer, so the effects of surface currents are negligible. The colder waters also inhibit convective movements. The thermocline zone accounts for about 18 of oceanic mass. From depths of about 1-1.5 k to the ocean floor is the deep cold zone, which accounts for 80 of the oceanic mass. Here the waters are near 0 C (32F), but do not freeze due to the dissolved salts.

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