Answer:
B. Changing muscle length.
Explanation:
Isometric exercises are stationary/static forms of exercise. They include contractions of the muscle without the movement of the affected joints. There is no change in length of the muscles since the joints are static.
This exercise is best fitted for strength maintenance. Examples include squatting,prayer and yoga pose etc.
Answer:
The Universe is the endless void of space that contains galaxies,black holes,asteroids,stars,planets and other astronomical bodies.
Explanation:
Because it's facts...
Theory because a theory is a well substantiated explanation of how a particular phenomenon works based on the set of facts which had been repeatedly confirmed through observations and experiments. A scientific theory gives reliable account of a phenomenon.
A. The mutation that occurs during meiosis is a sure way of gene splitting I presume:)
The green house effect refers to gases trapping the heat energy reflected from earth’s surface.
gases trapping heat energy reflected from the earth's surface.
<u>Explanation:</u>
It is the greenhouse effect that made earth a planet that supports life. if there was no green house effect the earth would have been too cold to live on. Sunlight contains rays like UV and infrared.
UV rays being harmful are blocked by the ozone layer in the stratosphere. Infrared rays that enter the earth’s atmosphere are trapped by the greenhouse gases like carbon dioxide, water vapour, methane etc. the trapped infrared rays help in providing warmth.
