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Tcecarenko [31]
3 years ago
7

Pizza is an example of a homogeneous mixture. true or false?

Biology
1 answer:
slava [35]3 years ago
5 0
"Homo" means the same. So no, Pizza is not the same consistently, On one slice you may have two pepperonis and on another 3.
Hope this helps!
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Scientific evidence suggests that the entire human population descended from just several thousand African migrants about 50,000
zhannawk [14.2K]

Answer: Fossils and primitive drawings in several digs around the world continents.

Explanation: I would expect to find fossils and primitive drawings of these several thousand African migrants on different areas around the world. I would like to find primitive bones, specially skulls and teeths and stones with drawings and old writings representing the life of these small population in Africa who made the entire human population.

5 0
3 years ago
The responses observed in type IV hypersensitivities result from the action of IgG and complement. autoantibodies. IgE antibodie
ANTONII [103]

The responses observed in type IV hypersensitivities result from the action of T cells and phagocytes.

Hypersensitivity IV type, also called delayed-type hypersensitivity (DTH), involves T cell-antigen interactions that cause activation and secretion of cytokines. This type of hypersensitivity requires sensitized lymphocytes that respond 24–48 hours after exposure to soluble antigens. A type IV hypersensitivity reaction is a cell-mediated reaction that can occur in response to contact with certain allergens, resulting in what is called contact dermatitis, or in response to certain diagnostic procedures such as the tuberculin skin test. Certain allergens need to be avoided to treat this condition. Type IV hypersensitivity response is observed results from the action of T cells and macrophages while other types are mediated by antibodies. This reaction  occurs at least 1–3 days after the initial exposure. Type IV hypersensitivity is the mechanism of many autoimmune disorders.

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brainly.com/question/13052008

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8 0
2 years ago
Can anyone help please
Dafna11 [192]

Answer:

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Explanation:

:) (i'm not supposed to tell you the answer but i can help you)

7 0
3 years ago
Describe how each of Newton’s laws may be observable during a car trip.
aleksandrvk [35]
According to Newton's first law, an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts. Also if a car was going straight but another car (unbalanced force) bumps into it causing the motion of the car to change.
8 0
3 years ago
The shape of the external ear is maintained by ________. Select one: a. hyaline cartilage b. adipose tissue c. fibrocartilage d.
d1i1m1o1n [39]

Answer:

D) elastic cartilage

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Cartilage is a connective tissue which is fibrous in composition which provides its physical properties like the softness, elasticity and strength.

There are three types of cartilages- the elastic, hyaline and the fibrocartilage. Among these three the cartilage which forms the external ear is the elastic cartilage. The elastic cartilage is composed of the elastin protein, type II collagen and the elastic fibres. The presence of the elastin proteins and fibres allows the ear to be an elastic organ.

Thus, Option-D is the correct answer.

4 0
3 years ago
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