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Schach [20]
3 years ago
5

What is the major source of energy for food chains? A.Water B.Air C.Sunlight D.Grass ​

Biology
1 answer:
Marina CMI [18]3 years ago
4 0
Sunlight is the main energy source
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When a closely related species evolve in different directions, they become increasingly different. what is this known as?
Hitman42 [59]
I know this answer but it is really commutated 
6 0
3 years ago
John has sudden attacks of intense fear in which he experiences palpitations, he feels dizzy, and he has trouble catching his br
sattari [20]

Answer:

panic disorder

Explanation:

The complete question is as follows:

John has sudden attacks of intense fear in which he experiences palpitations, he feels dizzy, and he has trouble catching his breath. During these attacks, he worries that he is going to die. From this description, it sounds like John has _____.

A. Schizophrenia

B. obsessive-compulsive disorder

C. panic disorder

D. generalized anxiety disorder

  • When a person experiences repeated panic attacks then the person is said to suffer from panic disorder.
  • During a panic attack the person experiences the following symptoms :
  1. palpitations
  2. sweating
  3. shaking
  4. numbness
  5. shortness of breath
  • Panic attacks may be caused due to different reasons such as past abuse, smoking, etc.
  • it is a form of extreme anxiety.
  • Since John is displaying the symptoms as stated above he is suffering from panic disorder.
5 0
3 years ago
Meals provided by congregate or home-delivered meal programs are designed to provide ______ of the RDA or AI for nutrients.
Delicious77 [7]

Answer:

One - third.

Explanation:

The children and adults must be protected from the malnutrition and each individual has the right to attain the minimum nutrient requirement. Different programs run in U.S.A. to fulfill the nutrient deficiency.

RDA (Recommended Dietary Allowance) is a type of allowance given to the individual for the average daily intake to meet the nutrient requirement. Adequate Intake (AI) is provided when the individual do not have proper proves to develop RDA. The home delivered meals provide atleast one-third of the RDA.

Thus, the answer is one-third.

8 0
3 years ago
Which phrase does not describe a way the human body responds to fight disease
nydimaria [60]

Answer:

The question is incomplete as options was not given. Here is the complete question:

Which phrase does not describe a way the human body responds to fight disease?

(1) destruction of infectious agents by white blood cells

(2) production of antibodies by white blood cells

(3) increased production of white blood cells

(4) production of pathogens by white blood cells

Explanation:

Answer is option 4, PRODUCTION OF PATHOGENS BY WHITE BLOODS CELLS.

During the fight against diseases by human, the white blood cells otherwise called leukocytes are involved in the protection of the body against infectious agents and pathogens, do not produce more pathogens rather antibodies to fight against the invading pathogens.

There is increased production of white blood cells during infection by pathogens, the infectious agents are destroyed by the white blood cells and the production of antibodies against the pathogens.

6 0
3 years ago
What is fossilized evidence of pollen most likely to reveal? 1a) whether the area was warm, swampy, grassy, or wooded
Ad libitum [116K]
From what I understood, the answer is 2a (:
5 0
3 years ago
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