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Vlada [557]
3 years ago
12

Darwin concluded that organisms on the Galápagos Islands a. had changed over time. b. had remained the same. c. were the result

of selective breeding. d. had no variations.
Biology
2 answers:
FinnZ [79.3K]3 years ago
8 0

since Darwin is known for his theory in evolution it is most likely A


guapka [62]3 years ago
6 0

A. Had changed over time.

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Suppose a star is about 38,000,000,000,000 kilometers away from Earth. How do you write this number in scientific notation?
DerKrebs [107]
3 8   x   1 0 ^ 1 2
 I'm pretty sure this is it





3 0
3 years ago
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Cyanobacteria can cluster together into colonies called _______, with some discovered in Western Australia that are 3.5 billion
Anna [14]

Answer:

1.) stromatolites

2.) photosynthesis

3.) Ordovician

4.) Cambrian

5.) oxygen

6.) As Earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumed carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian Explosion.

7.) Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase in size.

Explanation:

From Penn

7 0
2 years ago
Which of the following is a method used to prevent soil depletion?
ratelena [41]
<span>The best method used to prevent soil depletion would be contour farming. 

In contour farming, the land is tiled in consistent elevation. Contour farming is efficient in reducing soil depletion because it can conserve rain water and reduce the erosion of soil. 

If there is no contour farming in your option, then choose A. Adding fertilizer. </span>
7 0
2 years ago
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Make a list of the things that make a hurricane different from a regular thunderstorm.
Katarina [22]

Answer:

The biggest difference is that hurricanes need a warm moist water to keep on going and never forms over land, while thunderstorms can form over land or water. Tornadoes are also associated with cumulonimbus clouds.

Explanation:

A hurricane is a swirling, low-pressure system that develops over the tropics with sustained winds that have reached at least 74 miles per hour.

Warm, moist air near the ocean's surface rises upward, cools, and condenses, forming clouds. With less air than before at the surface, the pressure drops there. Because air tends to move from high to low pressure, moist air from surrounding areas flows inward toward the low-pressure spot, creating winds. This air is warmed by the ocean's heat and the heat released from condensation, so it rises. This starts a process of warm air rising and forming clouds and surrounding air swirling in to take its place. Before long, you have a system of clouds and winds that begins to rotate as a result of the Coriolis effect, a type of force that causes rotational or cyclonic weather systems.

Hurricanes are the most dangerous when there is a big storm surge, which is a wave of seawater that floods communities. Some surges can reach depths of 20 feet and sweep away homes, cars, and even people.

A thunderstorm is produced by a cumulonimbus cloud, or thunderhead, that includes rain showers, lightning, and thunder.

They start when the sun heats the earth's surface and warms the layer of air above it. This warmed air rises and transfers heat to the upper levels of the atmosphere. As the air travels upward, it cools and the water vapor contained within it condenses to form liquid cloud droplets. As air continually travels aloft in this way, the cloud grows upward in the atmosphere, eventually reaching altitudes where the temperature is below freezing. Some of the cloud droplets freeze into ice particles, while others remain "supercooled." When these collide, they pick up electric charges from one another; when enough of those collisions happen, the big buildup of charge discharges, creating lightning.

Thunderstorms are most hazardous when rain decreases visibility, hail falls, lightning strikes or tornadoes develop.

7 0
3 years ago
The thick, flat sheet of tendon deep to the scalp is called the
Oxana [17]

Answer:

epicranial aponeurosis.

Explanation:

epicranial aponeurosis.

6 0
2 years ago
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