10 percent of the energy<span> at any </span>trophic level<span> is </span>transferred<span> to the </span><span>next level.
The rest is lost through the metabolic process. This is due to heat.
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<h3><u>Answer;</u></h3>
Alpine skypilots evolve large flowers above the timberline and small flowers below the timberline.
<h3><u>Explanation;</u></h3>
- <em><u>Natural selection occurs when organisms or species with certain genotypes are more likely to survive and reproduce, compared to individuals with other genotypes, and thus to pass on their alleles to the next generation.</u></em>
- Alpine skypilots evolve large flowers above the timberline and small flowers below the timberline. This is an example of disruptive selection, which increases genetic variation.
- Longer tails in dragonflies and finches for a particular beak size are examples of directional selection, which decreases genetic variation.
- Natural selection against heavy and light field mice is an example of stabilizing selection, which reduces genetic variation
Answer:
Humans have about a thousand genes similar to those of bacteria ,because the genes are so vital that thier DNA structure has remained much the same over millions of years of decent from a common ancestor.
Explanation:
Droughts that are more frequent and severe, storms, heat waves, rising sea levels, melting glaciers, and warming oceans can all hurt animals, ruin their habitats, and disrupt people's livelihoods and societies.
<h3>
What is climate change?</h3>
Long-term increases in the earth's average surface temperature, as well as large-scale changes in global, regional, and local weather patterns, are caused by a considerable increase in the levels of greenhouse gases created by the burning of fossil fuels.
Dangerous weather events are growing more common and severe as climate change progresses.
Glacier melting occurs as a result of heat changes, particularly at relatively high temperatures. This is a process in which ice transforms from solid to liquid or water. Scientists have recently detected an alarming rate of glacier melting.
Unusually hot days and multi-day heat waves are a natural component of the weather's day-to-day fluctuations. Hotter-than-usual days and nights are becoming more prevalent as the Earth's temperature warms (see the High and Low Temperatures indicator), and heat waves are anticipated to grow more often and intense.
For more information regarding climate change, visit:
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Answers:
Myelin sheath
Axon
cell body
Dendrites
Explanation:
Myelin sheath
Myelin acts as an insulating layer, or sheath around the nerves. It constitute are protein and fatty substances. It permits electrical impulses to be sent swiftly and effectively through the nerve cells such that an injury to the myelin, will reduce impulses transmission.
Axon
The axon is transmits the signal to the synapse. It's long, thin and tendril-like. it transports electrical signal out of the cell body(soma)to the synapse.
cell body
The cell body houses the neuron that possess the nucleus. It is linked to the dendrites, which transmits information into the neuron while the axon transmits information to other neurons. Its basic function is to coordinate the entire functions of the cell.
Dendrites
Dendrites are branched protoplasmic extensions of a nerve cell that transmits the electrochemical stimulation sent from the other neural cells to the cell body, or soma, of the neuron.