Answer:
The knowledge of simple biological reactions tells us that the product of reactions results from the complete or partial use of the reactants. In some reversible reactions, products can be converted to reactants in equal volume. Hence, in reactions that cannot be reversed, as evident in respiration, its waste products can be used to indicate that indeed respiration did take place. When glucose is consumed it is broken down through a series of reactions to give carbon dioxide and water as waste products.
Explanation:
Answer;
-The above statement is true
-It is a precaution during dissecting.
Explanation;
Among the precautions while dissecting include;
-When cutting into or dissecting the specimen, it is important to always cut away from yourself and others. To avoid cutting anyone, especially with formaldehyde being used. .
-You should also should not hold the animals while cutting because you could again, cut yourself. Another precaution that should be obvious is Do not eat any part of the specimen.
Answer:
It will take 27 seconds for a cyclist to stop completely.
Explanation:
Initial velocity of the cyclist= u = 13.5 m/s
Acceleration of the driver = a = 
Final velocity of the cyclist = v = 0
Duration of time in which 13.5 m/s velocity is changed to 0 = t = ?
Using first equation of motion:
v = u + at
It will take 27 seconds for a cyclist to stop completely.
The geologist time scale was formed when scientists studied rock layers and index fossils worldwide. With this information, they placed Earth's rocks in order by relative age. Later, radioactive dating helped determine the exact age of the divisons in the geologic time scale.
This scale is organized by the 4.6 billion years of earth's history into sections based on important changes seen in the geologic record. The largest intervals are called eons, with each eon containing many millions of years.
In precambarian time the processes that affect Earth's surface have lessened the erosion on the surface. Earth was being hit by meteorites every second. Now there is water erosion and there wasn't back then. The surface changes have lessened over time.
