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alexdok [17]
3 years ago
15

Which observation proves that a cellis a eukaryote?

Biology
1 answer:
Zinaida [17]3 years ago
5 0

Answer:

C. It has a DNA inside a nucleus

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Explain the relationship between mutations, adaptations, natural selection, and extinction
Musya8 [376]

Mutations and natural selection cause adaptations. Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations.  

Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment.  

A mutation is an alteration of the DNA sequence. Sometimes such alterations code for the same amino acid sequence as the unaltered DNA strand during protein synthesis. In such a circumstance, the mutation is not detectable. However, other mutations alter the genetic code in such a way that a noticeable change in the trait that is associated with that gene is visible. Sometimes such mutations are advantageous and improve the organism's ability to survive in its environment.  

Natural selection is the process by which organisms with more advantageous traits (being camouflaged, being covered with the correct outer covering for the temperatures of that environment, stronger/ larger/ or faster to fight off or run from predators, etc.) are more likely to survive in a particular environment. Likewise, organisms less advantageous traits are more likely to die due to the pressures exerted by the environment (such as temperature, predators, illness, etc.). Therefore, the organisms with the advantageous traits that survive are more likely to survive to find a mate and reproduce. Thus, the advantageous traits are passed down to future generations.

<u><em>Hope this helps because I was learning about this today! </em></u>

<u><em></em></u>

<u><em>Soruces that might help: </em></u>

brainly.com/question/6836560

5 0
3 years ago
Read 2 more answers
A device that uses wire streched across a fault to mesure horizontel movement of ground is called a
schepotkina [342]
<span> A creep meter uses a wire that stretches across a fault to measure horizontal movement of the ground, and a  </span>laser-ranging device uses alaser<span> beam & reflector to detect Horizontal fault movements. I hope this is right.</span>
6 0
3 years ago
How does the collection and use of fresh and fossilized guano affect the phosphorus cycle and ecosystems.
wel

Answer:

Other deposits may be from fossilized bone or bird droppings called guano. Weathering and erosion of rocks gradually releases phosphorus as phosphate ions which are soluble in water. Much of the phosphate eventually is washed into the water from erosion and leaching.

Explanation:

3 0
2 years ago
Which factor explains that in general, temperate and polar regions have less biodiversity than tropical regions
frutty [35]

Answer:

Follows are the solution to this question:

Explanation:

The following are the two considerations demonstrating that there would be less biodiversity than the tropical areas in the Mediterranean climate as well as polar areas.

  • The first reason is all tropical areas experience drastic temperature variation.
  • The second reason is early in the earth's history, the northern latitudes are inhabited.
4 0
2 years ago
Approximately 80% of the energy used for active transport is devoted to the reabsorption of __________. approximately 80% of the
MrRissso [65]
The correct answer for both blanks is "Sodium".
Sodium ions are necessary in small quantities for some sorts of flora, but sodium as a nutrient is extra usually wanted in large quantities by using animals, due to their use of it for era of nerve impulses and for upkeep of electrolyte balance and fluid stability. In animals, sodium ions are vital for the aforementioned capabilities and for coronary heart hobby and sure metabolic functions.
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