1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irina [24]
4 years ago
9

Air masses that originate in Canada are:

Biology
1 answer:
oksano4ka [1.4K]4 years ago
8 0
D. continental polar
You might be interested in
In a hypothetical situation, a certain species of flea feeds only on pronghorn antelopes. In thewestern United States, pronghorn
eimsori [14]

Answer:

D) sympatric speciation and habitat isolation

Explanation:

Sympatric isolation is a form of evolutionary process whereby different species from an ancestral origin evolve within the same geographical environment as a result of reproductive isolation.

Habitat isolation is a form of reproductive isolation which occurs when two populations of a species inhabiting overlapping habitats become unable to interbreed with each other.  

Reproductive isolation (habitat isolation) that occurs in the fleas is as a result of the new species becoming separate from it's ancestral species which feed only on pronghorn antelopes, although both species can still be found in the same geographical location (rangeland). The new species now have preference for cattle blood, and so are now found on cattle.

In the situation of the two new species of flea that would evolve, it can be said to an example of sympatric speciation and habitat isolation, since the host mammal is assumed to be their habitat and both the cattle and pronghorns often associate with one another in the same open rangeland.

4 0
3 years ago
Which statement best describes the relationship between the product of photosynthesis and the reactants and cellular respiration
Rainbow [258]
A. the products of photosynthesis serve as the reactants and cellular respiration to provide chemical energy.

       Because photosynthesis produces oxygen and cellular respiration needs that oxygen to produce energy and carbon dioxide, the carbon dioxide is used to create energy and oxygen for the plant.
6 0
3 years ago
Read 2 more answers
What is the problem with 3D printing blood vessels/blood cells?
Sophie [7]

Answer:

3D-printed blood vessels incorporating living cells may help take vascular disease out of circulation for good.

Blood clots and fatty plaque residues on vessel walls can hinder or block blood flow and increase pressure in the vascular system. That deprives tissues and organs throughout the body of oxygen and nutrients their cells need to survive. Over time, a patient’s risk increases for cardiac emergencies like heart attack and stroke, as well as for chronic debilitating complications like leg pain, organ failure, tissue death, and gangrene.                                                                                              

Explanation:

5 0
3 years ago
If a person removes a colony of honey bees from a structure where they are unwanted, it is a good idea to remove all the wax com
drek231 [11]

Answer:

true

Explanation:

3 0
3 years ago
True or false, Water molecules tend to push away from each other.
Firdavs [7]

Answer:

False

Explanation:

Water molecules actually adhere to eachother

6 0
3 years ago
Other questions:
  • "5. what is the name of the artery which branches off from the femoral artery in the pelvic region? "
    10·1 answer
  • Glucose is the main source of cell energy, but any glucose that can't be used immediately is stored for future use as
    8·1 answer
  • How are patients typically infected with listeriosis?
    9·1 answer
  • When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. postsynaptic po
    7·1 answer
  • Type of diffusion that occurs with the help of a protein is called
    7·1 answer
  • Which substances are responsible for accelerating chemical reactions in cells?
    11·1 answer
  • What helped Mendel with his ability to keep detailed and accurate data in his experiments?
    5·1 answer
  • Which of the following best describes bear hibernation?
    6·1 answer
  • 12. What are the products of this 1st stage of cell respiration?
    13·1 answer
  • As a part of the life cycle of plants, the plant must begin with an embryo. What statement best describes where the embryo can b
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!