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professor190 [17]
3 years ago
9

In humans, the pelvis and femur bone, are involved in walking. In whales, the pelvis and femur bones would be an example of?

Biology
2 answers:
Sedaia [141]3 years ago
6 0
C. Vestigial structures :)
Butoxors [25]3 years ago
4 0

C. Vestigial structures

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What impact does the coriolis effect have on the direction the air travels?
Likurg_2 [28]

The Coriolis Effect can be seen in action in the general circulation of the atmosphere. The winds at all latitudes to the north of 0° deflect to the right of their intended path in the Northern Hemisphere. The Coriolis Effect does not impact the wind speed, only the wind direction.

6 0
3 years ago
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What is the pressure of 0.540 mol of an ideal gas at 35.5 L and 223 K?
Inga [223]

Answer:

Pressure, P = 28.2 kPa

Explanation:

Given that,

Number of moles, n = 0.54 mol

Volume of ideal gas, V = 35.5 L

Temperature, T = 223 K

We need to find the pressure of ideal gas. The equation of ideal gas is given by :

PV=nRT

R is gas constant

P is pressure

P=\dfrac{nRT}{V}\\\\P=\dfrac{0.54\ mol\times 8.314\ kPa- L/mol- K\times 223\ K}{35.5\ L}\\\\P=28.2\ kPa

So, the pressure of the gas is 28.2 kPa.                              

7 0
3 years ago
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A student notices that her guppies reproduce most when her fish tank water is slightly alkaline. They stop reproducing if the wa
Gnom [1K]

Answer:

The correct answer is Zones of tolerance

Explanation:

All living organisms such as fish,plants and animals  need water to survive and also the require certain pH level of water in order to be healthy.Its a acid and base balance reaction.Strong acids dissolve into water and its changes water's pH.if water's pH level drops it becomes acidic suppose a fish waste ammonia releases and dissolves in water to form harmless ammonia ions,carbon dioxide ions and hydrogen ions even some limestone also rises pH level and water becomes more basic.To make the tank water alkaline, add some corals and aerate the tank water by fixing an air pump so that excess of carbon dioxide eliminate out and water pH level comes to neutral this is the reason water becomes slightly alkaline and the fishes are able to reproduce.

3 0
3 years ago
Which statement about stomata is true?
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<span>The answer is B. The number of stomata is more on the lower surface of the leaf. Carbon dioxide enters the leaves through the stomata. In the leaves, it is used in the photosynthesis and converted into oxygen and glucose. Since the energy of Sunlight is important for the photosynthesis, stomata must be opened during the day. So, to avoid direct Sunlight and thus cause leaves dehydration, the number of stomata is more on the lower surface of the leaf.</span>
7 0
3 years ago
Acidic water can react with limestone to break the rock down and form caves in the Earth's surface. This is an example of ______
babunello [35]
B. Because a physical reaction is a change that can be seen. This particular situation is happening over a period of time, it isn’t something that happens instantly. Also I it would have been a chemical reaction, it would have mentioned something about the state of an element or the temperature or something along those lines.
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3 years ago
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