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Misha Larkins [42]
3 years ago
13

To explain scientific biological phenomena, scientists use a technique called

Biology
1 answer:
Nataliya [291]3 years ago
5 0

Answer:

the scientific methothe formula and testing of a hypothesis is part of the scientific method

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Polygenic means ______________ and _______________ is an example of a polygenic trait.
leva [86]
 Polygenic is a<span> </span>trait<span> that is controlled by a group of </span>nonallelic <span>genes. </span>For example, humans can be many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. ... Skin color is also a polygenic trait, as are hair and eye color. A trait that is controlled by a group of nonallelic <span>genes

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3 0
3 years ago
The extensions of the sarcolemma that carry the nerve impulses deep into the sarcoplasm are the?
MatroZZZ [7]

Answer:

T tubules

Explanation:

Transverse tubules (T tubules) are extensions of the sarcolemma that penetrate into the interior of the muscle transmitting electrical signals to the sarcoplasmic reticulum.

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3 years ago
What are the likely effects of increasing greenhouse gas emissions on the ecosystem?
Studentka2010 [4]
Irreversible climate change and damage to marine and land life/humans.
5 0
3 years ago
Why is the resting membrane potential negatively charged?
Iteru [2.4K]

Explanation:

The resting membrane potential is negative due to the buildup of more sodium ions outside the cell than potassium inside.

Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.

Further Explanation:

Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient. Parts of a neuron are separated into the

dendrites which receive messages from other neurons allowing them to pass and some of the cell body which contains typical cell components like the nucleus, endoplasmic reticulum and mitochondria.

The axon is an insulated (by the myelin sheath) tubular structure which acts as a bridge to price impulses to other neurons these also contain axon hillocks which are junctions between the axon and cell body

Synapses are junctions where axons connect to dendrites of other neurons at these junctions chemical reactions occur in order to facilitate the passage of information as chemical signals.

There are several neuron types which include sensory motor and into neurons which bridge the two.

  • The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
  • Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential

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

Learn more about neurotransmitters at brainly.com/question/9424160

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

#LearnWithBrainly

6 0
3 years ago
Wastewater is treated with chlorine to kill bacteria. However, chlorine can be toxic to certain fish that live in the ocean. Why
svetoff [14.1K]

Answer: Water must have the chlorine removed before it can be dumped into the ocean .

7 0
3 years ago
Read 2 more answers
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