Answer:
The body has two lines of natural defense to protect against infection. The first are physical barriers, such as the skin, body secretions and mucous membranes. The second line of defense is the immune system. Specialized immune cells coordinate and execute attacks to kill germs that make it past the body's physical barriers.
Their roots are near the surface, where they have access to oxygen.
Blood group o; a universal donor and blood group B
Answer:
<u>B</u>
Explanation:
If a disease wiped out the hare population, then result would be :
<u>The </u><u>arctic fox</u><u> population could </u><u>decrease</u><u> because they would </u><u>lose</u><u> a </u><u>food source</u><u>.</u>
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It cannot be A because although the arctic fox population might decrease, it would only cause an increase in its prey's population as there are less predators (arctic fox) to consume it.
Answer:
D.H
Explanation:
The glass of water which is asked in the question is made up of sodium silicate thus we can know that which ions are present in a glass of water.
From the glass itself we will get oxygen ion which is from sodium silicate and from the water present in the glass we will get the water breaking into H+ and hydroxyl ions.
