Answer:
Galileo performed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him. According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time.
Explanation:
A P E X
Acetylcholine is the neurotransmitter that sends signals along synapses which will keep creating action potentials in nerves so that signals are passed to the muscle cells (effectors)
Answer: The correct answer is option C
Explanation:
Bombay phenotype refers to a rare genetic trait in which a person appears as blood group O even in presence of functional A, B, or AB alleles.
It is because of recessive mutation that occurs in other locus, that is, FUT1 gene. Normal gene produces H antigen or protein in the cell. This antigen is essential for the final expression of the ABO alleles.
If a person is homozygous recessive then he or she is not able to produce H antigen due to which the blood group appears as O.
However, if a person carries even a single functional copy of FUT1 gene, that is, heterozygous or homozygous then he or she can efficiently produce H antigen and then ABO alleles are expressed accordingly.
Thus, option C contains incorrect statement.
The continental margin<span> is the zone of the ocean floor that separates the thin oceanic crust from thick </span>continental<span> crust. Together, the </span>continental<span> shelf, </span>continental<span> slope, and </span>continental<span> rise are called the </span>continental margin<span>. </span>Continental margins<span>constitute about 28% of the oceanic area.</span>
The correct answer is "<span>press firmly against the wound with a sterile dressing".
Pressing firmly against a bleeding wound, may counter the severe bleeding and may also stop the bleeding, since the pressure that causes blood to gush out, is given a counter pressure to stop. Using sterile dressing while doing this to an open wound may also prevent infection.</span>
