Answer:
9 January, 1992
Explanation:
The first confirmed detection of extrasolar planet (or) exoplanet occurred in the year 1992.
What is the US Census Bureau requirement for a place to be classified as urban?
A: no less than 1 million people
B: any population over 100,000 people
C: a population of 10,000 or more
D: at least 1,000 people per square mile
Answer:
at least 1,000 people per square mile
Explanation:
I took the test it was correct. ( i know thats not an explanation im sorry but its correct).
Are whales more closely related to fish or to elephants?
List 3 reasons
The project that sequenced and mapped all of the genes in the human body is known as _____.
Answer:
The answer is Human Genome Project
Explanation:
The project that sequenced and mapped all of the genes in the human body is known as Human Genome Project .
Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as ______.
Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as : Myosin and actin
Meaning of Myosin and actin
Myosin and actin are proteins that are found in all type of muscle tissue.
Smooth muscles (Heart) do not need nerves but it is an involuntary action, due to the presence of the myosin and actin, it work continuously.
Myosin and Actin are like a sliding filament in the muscle structure of the heart. they cause the heart to work continuously.
in conclusion, the Mechanisms that regulate smooth muscle contraction (independently of nerves or hormones) by which organs and tissues alter their own arteriolar resistances and blood flow are referred to as : Myosin and actin
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