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Liula [17]
3 years ago
8

What is biological evolution

Biology
2 answers:
Lina20 [59]3 years ago
6 0
Biological Evolution- is the refers to the cumulative changes that occurs ina population over a time.
Nana76 [90]3 years ago
5 0

Biological evolution is the genetic changes that occur in a population over successive generations. It is a process whereby changes occur on the genetic level of a population and it is being transferred from one generation to another. Biological evolution takes place as a result of natural selection and its result may be minimal (unnoticeable) or significant (noticeable). Biological evolution includes microevolution (minor genetic changes within a specie or population) and macroevolution (large evolutionary changes above the species level).

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SpyIntel [72]

Answer:

the third one bc everyone one has the same amount of chromosomes yea someone might have half of each parent but they will still have the same amount as the parents so if both parents have 23 pairs each then the child will have 23 pairs of chromosomes.

8 0
3 years ago
A student listed characteristics of a classroom aquarium ecosystem. Which
Ghella [55]

Answer:

The correct answer is "The ammonia is controlled with a filter that uses two type of bacteria."

Explanation:

  • The Biosphere on earth is composed of all the ecosystems, while each ecosystem is composed of the abiotic and biotic components and their mutual interactions. Aquarium is an example of aquatic ecosystem.
  • Abiotic components constitute the non-living part of the ecosystem.
  • Biotic components constitute the living part of the ecosystem.
  • In the aquarium,
  1. The abiotic components include the air, water, heat, minerals, sunlight, fluorescent light.
  2. The biotic components include the aquatic plants, aquatic animals and  the bacteria (in the filter attached to the aquarium).
  • These bacteria are responsible for fixing dissolved nitrogen gas present in the water of the aquarium to ammonium and are called nitrogen-fixing bacteria.
  • Free living bacteria like cyanobacteria or blue-green algae are examples of nitrogen-fixing bacteria.
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5 0
3 years ago
True or false? narcotic analgesics can depress respiration.
finlep [7]
True, Because <span>respiratory depression has been associated commonly with postoperative analgesic doses. Good Luck!</span>
8 0
3 years ago
Read 2 more answers
Four students have done a nice job drawing membrane models. Which model does the best job of showing osmosis? a. Thomas. Student
Semmy [17]

Answer:

The model that does the best job of showing osmosis is "Thomas. Student-drawn membrane model within a rectangular box. From left to right there is an upper and lower line spaced moderately apart."

Explanation:

Osmosis: this is a process of which molecules of a solvent pass through a semipermeable membrane from a lower concentrated solution into a more concentrated solution.

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3 years ago
En la maduración del cerebro que inicia desde la nuca hasta la frente la última área que madura es la corteza prefrontal que ayu
irga5000 [103]

Answer:123456Which statement best explains the main conflict and resolution in "How a Cat Played Robinson Crusoe"?

The cat is abandoned on an island. She adapts to the wilderness and survives until her family returns.

The family worries about the cat. They are overjoyed to discover that the cat is alive when they return.

The cat faces many adversaries, including rats and owls. However, she persists and is able to overcome each.

The cat learns how to hunt. She does not starve to death on the island.

Explanation:

6 0
2 years ago
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