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VMariaS [17]
4 years ago
7

HURRY!!!! Pls

Biology
2 answers:
Tanzania [10]4 years ago
8 0
When two equal and opposite forces act
alexandr1967 [171]4 years ago
3 0

Answer:

"An object will remain at its state of rest or motion until an external force acts on it". This means that, if the net force acting on an object at rest is zero, the object will remain at rest. The object will start to move only when there is an unbalanced force acts upon it.

Hope it helped!!

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How are humans immune to infectious diseases after they have already contracted the disease previously? and How do vaccinations
Varvara68 [4.7K]

Answer:

Explanation:

Immunity to a disease is achieved through the presence of antibodies to that disease in a person's system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific. Viruses make us sick by killing cells or disrupting cell function. Our bodies often respond with fever (heat inactivates many viruses), the secretion of a chemical called interferon (which blocks viruses from reproducing), or by marshaling the immune system's antibodies and other cells to target the invader. A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.  

6 0
3 years ago
What joins muscle to muscle?​
Crank

A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball

3 0
3 years ago
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some technology have a number negative effects which is a negative out come of the technology of vertical farming
solniwko [45]

Answer:

make me brainliest pls hope it helps :)

Explanation:

Electricity 24hrs.

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8 0
3 years ago
Where are instructions for traits found?
Mademuasel [1]
I’m pretty sure it’s either A or C!!
4 0
3 years ago
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Which of the following is not one of the three main periods of Greek sculpture?
Natasha_Volkova [10]
I believe the correct answer is option D. Corinthian is not one of the three main periods of Greek sculpture. Instead, it is Archaic, Classical and Hellenistic that are the main periods. Corinthian is the  last developed of the three principal classical orders of ancient Greek and Roman architecture. 
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