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WARRIOR [948]
3 years ago
5

Which kind of investigations never include a hypothesis?

Biology
1 answer:
Elden [556K]3 years ago
4 0

Discriptive investigation never include a hypothesis.

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They came over on an <span>umbilical cord.</span>
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The Turner family uses 548 liters of water per day. The Hill family uses 3 times as
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Answer:11,508 liters per week

Explanation: Since the turner family uses 548 liters per day and the hill family uses 3 times that much you would multiple 548 by 3 giving you 1,644 liters per day. 1,644 liters is the amount of water they use in one day so you would have to multiply the amount of water used in one day with the total days of the week. Therefore 1,644x7= 11,508 liters per week.

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Neurosecretory cells make and release the hormones of the posterior pituitary. The cell bodies of these neurosecretory cells rec
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Neurosecretory cells make and release the hormones from the posterior pituitary. The cell bodies of these neurosecretory cells receive synapses from Afferent neuron and their axon terminals release hormones into blood stream or the local extracellular space.

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3 0
1 year ago
if the following graph represents the decay of strontium-90 in an igneous rock, what event occurred at 0 years on the horizontal
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At 0 years, an event took place which is known as metamorphosis of igneous rock i.e., formation of igneous rocks from melted magma.

Strontium-90 is a radioactive element which undergoes beta decay to form yttrium-90. It has a half life of approximately 28 years and decay energy of 0.546 MeV. This radioactivity is used by geologist to estimate the age of the rock, fossils, meteorites etc. Other radioactive elements used by the geologists are carbon-40, potassium-40 etc.

Radiometric clock is set when the rock was formed in the past i.e., the moment when an ingenious rock was solidified from molten magma.

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The mass of a nucleus is less than the total mass of its nucleons. This difference in mass indicates that some of the mass has b
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Option B , Binding Energy

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The energy in combining two nucleus is lost in binding them. This binding energy is too large that it causes significant loss of mass and is calculated using the Einstein’s theory of relativity.  

When two nucleons combine , mass defect is caused which leads to loss of mass associated with energy and therefore the mass of nucleus is less than the mass of nucleons.  

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