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3 years ago

A community of plants and animals together with its environment is a(n) ______.

Biology

2 answers:

Anna11 [10]3 years ago

8 0

Ecosystem .. Just took the test !

Ipatiy [6.2K]3 years ago

6 0

Answer:

Biomes

BIOMES

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Ten point to who answers this ?

expeople1 [14]

Active transport is a process requiring energy in which a substance crosses the cell membrane. In a resting neuron, there are positively charged sodium ions outside of the cell, and negatively charged potassium ions in the cell. When the neuron fires, depolarization occurs=> the positive ions are forced in and negative ions are forced out by means of active transport. When the neuron is done firing, the ions are forced back into their original position inside or outside of the cell by active transport.

Let me know if I need to clarify any of that.

7 0

3 years ago

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Choose TRUE to indicate that the following equation is balanced and satisfy the Law of Conservation of Mass. Choose false if it'

tensa zangetsu [6.8K]

Answer:

true

Explanation:

it is balanced gg

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3 years ago

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What happens when alleles for a trait are codominant

Otrada [13]

Then both traits show up clearly. Not to be mistaken for incomplete dominate where the traits both show up indistinguishably

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3 years ago

Describe the general functions of the major systems of the human body.

Yuri [45]

Answer:

Integumentary System: acts as a barrier to protect the body from the outside world (ie. skin, hair, and nails)

Circulatory System: carries oxygen and nutrients to cells, carries waste away from cells (ie. heart and blood vessels (veins and arteries))

Digestive System: converts food into molecules that can be used by cells (ie. mouth, esophagus, stomach, small intestine, large intestine)

Respiratory System: provides oxygen to the blood and removes carbon dioxide from the body (ie. nose, mouth, pharynx (throat), trachea, and lungs)

Immune System: fights off illness and disease (ie. lymph nodes, white blood cells, and spleen)

Muscular System: allows for movement (ie. cardiac muscles, skeletal muscles, and smooth muscles)

Nervous System: coordinates all body functions, sends signals to and from all parts of the body (ie. brain, spinal cord, and neurons)

Skeletal System: support the body, protect internal organs, store minerals (ie. bones and joints)

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3 years ago

Current beliefs as to why people age

iogann1982 [59]

Throughout our lives all of our bodily systems have cells that duplicate themselves. After a certain number of years, these cells begin to start dying off, or become more prone to mutations that occur in the cell replication process. An example is the eventual death of muscle cells that lead to reduced muscle tone and strength in the elderly. Concerning mutations in cell replication, the more times something happens the more chances there are that something can go wrong. If a cell has replicated itself twenty times, there has been little opportunity for something to go wrong, but when cells have replicated hundreds or thousands of times, pure odds mean the chances are greater for "mistakes". These mutations are what leads to certain diseases that are more greatly associated with aging, such as certain cancers.

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3 years ago