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2 years ago

Describe how physical and chemical changes affect mass

Biology

1 answer:

AlladinOne [14]2 years ago

5 0

Answer:

Explanation:

Matter can change form through physical and chemical changes, but through any of these changes matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

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Helen [10]

It's D,C,C this is the answer

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3 years ago

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Explain what a magnetic field is and its force.

Elden [556K]

Answer: G00gle

Explanation: Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.

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2 years ago

What is the best description of the chromosomes by the end of prophase of mitosis?

SpyIntel [72]

Answer:

The chromosomes have coiled and become more compact.

Explanation:

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3 years ago

The cerebral cortex plays a major role in all of the following except

kondor19780726 [428]

Explanation:

Complete answer:

a. foot tapping rhythm

b. long-term memory

c. breath holding

d. circadian rhythm

The cerebral cortex plays a major role in all of the following except d. circadian rhythm

The cerebrum is split into the left and right hemispheres, while the cerebral cortex makes up the outer layer of the brain and is comprised of gray matter. Gray matter is made up of unmyelinated neurons.

The cerebral cortex is described as having motor, sensory and association areas, and is involved in thought, memory, perception, awareness, and language. Overall, it is associated with voluntary movement, thus the circadian rhythm, involved in homeostasis and the autonomic nervous system, is unrelated to its function.

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

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3 years ago

Cattle depend on microorganisms in their digestive tract to digest the cellulose in their diets. The cattle and the microorganis

GaryK [48]

<h2>The correct answer is: Mutualism.</h2>

Explanation:

Mutualism can be defined as a type of symbiotic relationship.
Symbiosis can be defined as the type of ecological interplay in between two species localized in the same habitat in which at least one of the species gets benefited in the form of food, shelter or protection due to the interaction.
Mutualism is a type of positive symbiosis in which both the species involved in the ecological interplay benefits due to the interaction in between them.
In the given question, some micro-organisms survive in the digestive tract of the cattle.
These micro-organisms produce the enzyme, cellulase, which helps in digesting cellulose present in the food consumed by the cattle.
The cattle is incapable of producing this cellulase enzyme by itself and is dependent on the micro-organisms for its synthesis.
Hence, the the micro-organisms help the cattle in obtaining nutrition and energy by the digestion of cellulose.
On the other hand, the micro-organisms get shelter, nutrition and protection in the gut of the cattle.

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3 years ago