The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
The metric system is a system of weights and measures that was first applied in 1795 in France. Experts everywhere the world use it as the international standard to evidently communicate data. The significance are the following:
• SIMPLICITY which is the metric system is much simple than the english system because it uses a standard conversion influence for all units.
• FAMILIARITY which is almost every nation excluding the united states has accepted the metric system as its official system of weight and measures.
• UNIFORMITY which is scientists use the metric system so all experiments are conducted using the same weights and measures.
• HISTORY which is the general session on weights and measures formally chosen six metric units to be used as international standards in 1954 and in 1960 and the meter was formally distinct established on the wavelength of light from krypton atoms.
• TYPES which is the metric system use meters for space, grams for mass, liters for volume and candelas for light.
Answer:
b. did not know how to care for infants
Explanation:
Research shows that captive-bred monkeys without their mothers don't know how to care for babies. This is because these little monkeys grow up without maternal support, do not have a behavioral model about caring for babies and therefore can not create enough affective bond to care for their infants. Monkeys are very intelligent beings and often associate the behavior of other monkeys as inspiration for the situations they are facing, captive-bred monkeys without their mothers do not have this model of inspiration and therefore do not know how to take care of baby monkeys.
In modern cosmology, the origin of the Universe is the instant when all the matter and energy that currently exist in the Universe emerged as a result of a great expansion.
<h3>Theories about the origin of the universe</h3>
- may change due to further investigations
<h3>in astronomer proposed a new theory about the evolution of the universe what is the next step the astronomer should take to make his theory reliable</h3>
- publish the theory in a scientific journal to let people know about it
<h3>where negatively charged particles would most likely be found in an atom</h3>
With this information, we can conclude that Electrons – Negatively charged particles located in the electrosphere; Neutrons – Neutral charged particles that, like protons, make up the nucleus of the atom. The attraction or repulsion of bodies depends on the nature of the electric charge: Bodies with charges of the same nature (or sign) – repel each other.
Learn more about atom in brainly.com/question/1566330
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Answer:
Paired lungs
Explanation:
Paired lungs comprise the respiratory system of a bird.
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