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Alborosie
3 years ago
9

Why is it important that are cardiac and smooth muscles contract involuntarily?

Biology
1 answer:
disa [49]3 years ago
8 0

Answer:

These muscles push materials like food or blood through organs. In contrast to skeletal muscle, smooth muscle can never be heavily influenced by you. Cardiovascular muscle is likewise a compulsory muscle, discovered uniquely in the heart. The heart muscle strands all agreement together, creating enough power to push blood all through the body

Explanation:

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Describes how energy is produced from the power of water. In your answer, include the terms: ocean water, turbine, electricity,
lapo4ka [179]

Most hydroelectric power plants have a dam and a reservoir. These structures may obstruct fish migration and affect their populations. Operating a hydroelectric power plant may also change the water temperature and the river's flow. These changes may harm native plants and animals in the river and on land. Reservoirs may cover people's homes, important natural areas, agricultural land, and archaeological sites. So building dams can require relocating people. Methane, a strong greenhouse gas, may also form in some reservoirs and be emitted to the atmosphere. Reservoir construction is "drying up" in the United States  Gosh, hydroelectric power sounds great -- so why don't we use it to produce all of our power? Mainly because you need lots of water and a lot of land where you can build a dam and reservoir, which all takes a LOT of money, time, and construction. In fact, most of the good spots to locate hydro plants have already been taken. In the early part of the century hydroelectric plants supplied a bit less than one-half of the nation's power, but the number is down to about 10 percent today. The trend for the future will probably be to build small-scale hydro plants that can generate electricity for a single community.  As this chart shows, the construction of surface reservoirs has slowed considerably in recent years. In the middle of the 20th Century, when urbanization was occurring at a rapid rate, many reservoirs were constructed to serve peoples' rising demand for water and power. Since  Hydroelectric energy is produced by the force of falling water. The capacity to produce this energy is dependent on both the available flow and the height from which it falls. Building up behind a high dam, water accumulates potential energy. This is transformed into mechanical energy when the water rushes down the sluice and strikes the rotary blades of turbine. The turbine's rotation spins electromagnets which generate current in stationary coils of wire. Finally, the current is put through a transformer where the voltage is increased for long distance transmission over power lines.   Hydroelectric-power production in the United States and the world!

(sorry this is the second part)

8 0
3 years ago
Which statement is correct concerning the process of ecological succession? Shrubs will replace pines during succession. Primary
Mariana [72]

Answer:

Option (2).

Explanation:

Ecological succession is the change in the ecological community of the species with respect to time. Two  types of the succession are  secondary succession and primary succession.

The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.

Thus, the correct answer is option (2).

3 0
3 years ago
A student is labeling a diagram of mitosis. Which description should the student label as metaphase?
hjlf

The answer to the question is option C

8 0
2 years ago
This lower limb muscle, which attaches to the calcaneus via the calcaneal tendon and plantar flexes the foot when the knee is ex
Hitman42 [59]

Tibialis anterior.

Explanation:

Tibialis anterior is the muscle of lower limb that originates from the upper two-third of lateral surface of tibia and attaches the heel (calcaneous ) via heel cord and plantar.

When the knee is extended, this muscle results in flexing of the foot .

This injury also functions in keeping the balance of the body when we are standing or even when we are walking.

4 0
3 years ago
Which structure of a protein is the amino acid sequence?
olganol [36]
C:Primary cause i was asked this question and that is what the answer was

5 0
3 years ago
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