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What are the 4 molecules of life?

What are the 4 molecules of life?

The most abundant substances found in living systems belong to four major classes: proteins, carbohydrates, lipids, and nucleic acids. Here we briefly describe the structure and some functions of these biological molecules.

What are the 6 processes of life?

The six human life processes are: growth and development, movement and responding to stimuli, order and organization, reproduction and heredity, energy utilization and homeostasis.

What are the functional characteristics necessary to maintain life?

Like all complex animals, humans must maintain a core set of necessary life functions to survive. These include maintaining boundaries, movement, responsiveness, digestion, metabolism, excretion, reproduction, and grow.

What are the characteristics of life?

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

What would withdrawing from a painful stimulus be an example of?

Withdrawing from a painful stimulus is an example of: A. excretion.

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What organ system is responsible for maintaining boundaries?


Which of the following is an example of a physiological homeostatic imbalance?

Diseases that result from a homeostatic imbalance include heart failure and diabetes, but many more examples exist. Diabetes occurs when the control mechanism for insulin becomes imbalanced, either because there is a deficiency of insulin or because cells have become resistant to insulin.

What causes conditions in the body to move away from the normal state?

Positive feedback intensifies a change in the body’s physiological condition rather than reversing it. A deviation from the normal range results in more change, and the system moves farther away from the normal range.

Which system is responsible for responsiveness?

Answer The nervous system bears the major responsibility for responsiveness or | Course Hero. You can ask !

What is the single most abundant chemical in the body?


Is the nervous system responsible for responsiveness?

Because nerve cells are highly irritable and communicate rapidly with each other via electrical impulses, the nervous system is most involved with responsiveness.

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How does nervous system keep you alive?

The nervous system helps all the parts of the body to communicate with each other. It also reacts to changes both outside and inside the body. The nervous system uses both electrical and chemical means to send and receive messages.