Many weeds that never previously existed in Canada were brought over by early European settlers who started wheat farming in the prairies. This is an example of

Answers

Answer 1

Answer: Introduced species or exotic species

Explanation:

The introduced species is also called as an exotic species. The exotic species is a species which is not native to a particular location or area but is introduced by humans either accidentally or with the desired species. Such species can be invasive means, it can compete with the native species for resources and can reduce the population of native species.

The given situation is an example of introduction of new species. The weeds are introduced exotic species which could have come along with the desired variety of wheat required for farming in the prairies.


Related Questions

Which evolutionary mechanism increases inheritable variations

Recombination of genes
Bottleneck ig of genes
Gene flow
Genetic drift

Answers

Answer:

Recombination Of Genes

Explanation:

Recombination of the gene's evolutionary mechanism increases inheritable variations, hence option A is correct.

What are genetic variations in a population?

Gene flow, recombination, and mutation are mechanisms that enhance genetic variety. There are more mechanisms that work to promote genetic diversity, but fewer that work to reduce genetic diversity.

Demographic bottlenecks tend to decrease genetic diversity by intensifying genetic drift, but because genetic drift is random and has local impacts owing to recombination, mutation, and selection, the overall impact may vary along the genome.

Because it introduces new variety into the population, the mutation is the only mechanism of evolution mentioned that increases the amount of genetic variation. Genetic drift is the haphazard loss of genetic variation over time.

Therefore, option A is correct.

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Which of the following statements about reflective and refractive telescopes is not true?
a. Both require very little light to create an image
b. Both magnify distant objects
c. Both can be up to five meters in diameter
d. A refractive telescope uses a lens while a reflective telescope uses a mirror to magnify

Answers

It is the answer for it is d

( PLEASE HELP NEED A REAL ANSWER! )
Individuals with advantageous traits for their environment have a better chance of surviving
than those with less helpful traits. Explain how this is demonstrated in the moth information
above. Use specific information and examples.

Answers

Answer:

The moths with darker coloring lived long enough to reproduce and passed the trait on. The light peppered moths were easier for predators to spot on the dark soot covered trees so they died first.

Explanation:

PLEASE ANSWER QUICK>>>>>Explain how enherited traits are determined

Answers

Answer:An inherited trait is one that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics. Most traits are not strictly determined by genes, but rather are influenced by both genes and environment.

Explanation:

Which conclusion is supported by this evidence? Neither ball has a charge. The balls are both positively charged. One ball is positively charged, and the other is negatively charged. Each ball has a charge, but the type of charge is unknown.

Answers

Answer:

The correct answer is - Neither ball has a charge

Explanation:

If the two balls are hanged near one another without touch or an external charge to any of the balls there would be no charge present. In the given question is it given that two balls hang down without any contact in them.

So there is no possible way to generate charge and remain uncharge in their position till they get any external charge.

The correct answer is - Neither ball has a charge

What needs to happen for a species to form

Answers

Answer:

New species form when individuals from diverging populations no longer recognize one another as potential mates, or opportunities for mating become limited by differences in habitat use or reproductive schedules.

Explanation:

Which describes chemical digestion? *

Answers

Mechanical digestion

What is the name of the binding site of RNA polymerase in eukaryotes?
F. operator
G. inducer
H. operon
J. promoter

Answers

Answer:

J. promoter

Explanation:

The promoter is the name of the binding site of RNA polymerase in eukaryotes.

brainliest:


Describe how a carbon atom is released from a fossil fuel like coal and travels into the atmosphere as a gas. How does it then end up in living things like plants and animals? Explain how carbon ends up back in the ground. Use the following terms in your typed response: CO2, C6H12O6, atmosphere, lithosphere, hydrosphere, biosphere, carbon sink, carbon source.

Answers

Explanation:

Animals and plants need to get rid of carbon dioxide (c02), this process is called respiration. Respiration happens when the plant/animal breaths in air and releases it as carbon, carbon then moves from fossil fuels to the atmosphere where they are burned. When humans burn fossil fuels to power cities, power plants, cars, and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.

i tHoUgHt yOu WeRe aMeRiCaN

Answers

Answer:

i am lol

Explanation:

Answer:

I am :)

Explanation:

(Giving brainliest!!)

What are the 3 common characteristics of planets? Describe one of the characteristics of one of the planets in our solar system

Answers

Answer:

The solar system is host to two broad categories of planets. The four closest to the sun — Mercury, Venus, Earth and Mars — are the terrestrial planets. They have rocky surfaces enclosed by relatively shallow atmospheres. The gas and ice giants — Jupiter, Saturn, Uranus and Neptune — are outliers. They are much larger than the terrestrial planets, but their cores are small and icy. Most of their size is formed by a combination of gases that become denser and hotter as you get closer to the core. Scientists count eight planets overall. Pluto was reclassified as a dwarf planet in 2006.

Explanation:

A new drug is discovered for the treatment of thyroid cancer. Which is a logical next step of the scientific method after the discovery has been successfully tested?


keeping the information private

testing the drug on animals

sharing the data with other scientists

testing the drug on people

Answers

Answer:

The answer would probably be either c or d

5
Recent studies looked at how fog may play a role in the water transport of the coastal
redwoods. Which is true?
A
The fog helps to replenish vital ground water.
B
The fog lowers the evaporation rate at the needles.
C
The fog can decrease the energy demand of the trees.
D
All of the above

Answers

Is D Your welcome have a nice day

If we were allowed to fish in these waters, how would it affect the food chain? The dolphins in particula

Answers

Answer:

Things that would/could affect the dolphins:

Driving away food sourcesOverfishing would cause a lack of food sourcesOverfishing could make them along with other species compete for food/survivalAccidents involving dolphins with boats and fishing equipment

Explanation:

Hopefully I helped. IF SO CAN I HAVE BRANLIEST.

3. Which of the following is the reactant of photosynthesis?

Answers

I don’t see anything in the following. Repost the question

Answer: i dont see a question but  The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll,

Explanation:

im not sure if you need this but while the products are glucose (sugar), oxygen and water.

BIOLOGY PLS HELP!!! A 5% salt cell is placed in a 15% salt solution. What type of solution is this cell in?
a) hypotonic
b) hypertonic
c) isotonic

Answers

Answer:b

Explanation: the solution is more concentrated (hyper) than the cell is

hyper means more than and hypo means less than like hyperthermia (too hot) or hypothermia (too cold)

1. Show the possible outcomes if a women who is a carrier for baldness has children with a normal man.
Can they have a son with baldness?

Answers

Answer:

Yes they can.

Explanation:

I defined the genotypes and possible outcomes in the image attached

HELPPPP pls I need answer fast like flash

Answers

Answer:

and im here hi

Explanation:

was i fast enough?

PLEASE HELP I AM ON A TIMERR

Answers

Answer:

a

Explanation:

you need sugar,glucose and oxygen

Glucose and oxygen :)

SARS-CoV-2 is a respiratory virus. What makes a respiratory virus more difficult to contain than a pathogen that is spread through contaminated food, for example?

Answers

Answer:

a respiratory virus is usually air borne. while contaminated food can only harm you if ingested. with SARS, if you breath in contaminated air, its a lot easier to get it.

Explanation:

A potted plant is placed in the dark. Which statement best describes what will most likely happen FIRST to the plant over time? The plant will die because it does not have what it needs for cellular respiration The plant will die because it does not have what it needs for cellular respiration The plant will die because it does not have what it needs for photosynthesis The plant will die because it does not have what it needs for photosynthesis The plant will grow at a slower rate The plant will grow at a slower rate The plant will grow faster because it has no competition.

Answers

Answer:the plant will die

Explanation:

What is the role of oxygen in photosynthesis

Answers

Photosynthesis is the process in which light energy of the sun is converted to chemical energy. ... The oxygen so released is used in the respiration process to break down complex molecules (generated in photosynthesis) and releases energy in the form of ATP (adenosine triphosphate) molecules.

Answer:

as fare as I can remember oxygen is actually a waste product that is produced at the end of a plant's photosynthesis cycle

Explanation:

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How can we tell histologically that skeletal muscle tissue is highly vascular?

Answers

Answer:Muscle tissue is composed of cells specialized for contraction. Muscle is classified into three types according to their structure and function:

Skeletal muscle cells - striated, voluntary control

Cardiac muscle cells - striated, involuntary control

Smooth muscle cells - nonstriated, involuntary control

Skeletal and cardiac muscle cells are called striated because they show an alternating series of bands. The repeating arrangement of their basic contractile unit, the sacromere, produces these striations.

In all types of muscle, contraction is caused by the movement of myosin filaments along actin filaments.

The terms muscle cell and muscle fiber are synonymous.

Explanation:

which of the following is an example of positive feedback?

Answers

Answer:

uuh theres not an example please comment under this post to me the options

Explanation:

Moving ridges of water on the surface of the ocean caused by wind and constantly cause weathering along the shoreline. *

Answers

Answer:

Waves

Explanation:

Waves are moving bodies of water that crash against the shore and cause erosion.

All____species are dangerous to ecosystems

Answers

Answer:

invasive

Explanation:

hope it's help

To move the objective lens up and down, I would turn the _________ __________ dial. Which two words complete the sentence? ps: i gave 100 points so answer

Answers

Answer:

knob and the dial are the words

Pls can someone help me out by answering these

Answers

Answer:

the diagram is not clear enough.

Answer:

A,C,D

Explanation:

Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire from the light bulb back to the battery, the light bulb turned on. Priscilla knew that current was now flowing through her closed circuit. What makes the current in the circuit flow?

Answers

Answer:

The complete path provided by the closed circuit enables electric current produced by the battery to flow round the circuit

Explanation:

Electric current consists of charges (electrons) in motion from one region to another.

An electrical circuit is any closed path through which electric current can flow.

An electrical circuit consists of an energy source that supplies the electrons moving, a path along which the electrons can travel, and a load or appliance that uses the electrical energy. When the circuit is broken at any point, electrons will cease to flow since there is no complete path for it to flow. Such a circuit is known as an open circuit.

In the circuit built by Priscilla, the battery serves as a source of energy by providing the electrons that moves round the circuit. The wires provides the path for electrons to flow from the battery through the light bulb and back to the battery. When she connected the final wire from the bulb back to the battery, the circuit becomes complete/closed and current then flows to light up the bulb.

Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission

Answers

I believe it’s O Meiosis

The process that produces gametes in animals is meiosis.

What is Meiosis

Meiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.

During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.

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