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ehidna [41]
3 years ago
10

How does the immune system know if a foreign particle has infected the body?

Biology
1 answer:
xeze [42]3 years ago
8 0
The cells won't recognize the foreign particle <span />
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The pancreas and the gonads are glands with double secreation. Explain why.​
olganol [36]

Explanation:

Pancreas functions as both endocrine and exocrine gland. Hence, called as dual function gland or a mixed gland. Exocrine part of pancreas secretes digestive enzymes while, its endocrine part (islets of Langerhans) produce two hormones, i.e. insulin and glucagon.

3 0
3 years ago
What will happen if striated muscles contract rapidly for longer duration
goblinko [34]
<span>You get muscle cramps. This can occur during strenuous exercise or even at rest. The most common cause of muscle cramps is dehydration. Muscle cramps happen involuntarily and occur for longer periods with the muscles contracted. When it is not prolonged, the involuntary contraction is called spasms and it is occasionally referred as twitch.</span>




7 0
3 years ago
Read 2 more answers
Compare how energy is used worldwide with how it is used in the United States.
Maslowich

Answer:

the U.S comsumes almost 15% of the worlds energy

Explanation:

yes

7 0
2 years ago
Type of nitrogenous base with a double ring found in DNA and RNA:
svet-max [94.6K]

Answer:

The correct answer will be option-B (purine).

Explanation:

Nucleic acid structure is made up of monomer unit called nucleotide. Each nucleotide is composed of a five-carbon sugar, a phosphate group and five types of nitrogenous bases.

The nitrogenous bases are categorized in two forms the purines (adenine and guanine ) and the pyrimidines (cytosine, thymine and uracil). The "purines" contain double rings in their structure due to which they appear larger in size than pyrimidines which are made up of single rings.

Thus, Option-B is the correct answer.

8 0
4 years ago
What is the chemical reaction for photosynthesis
fiasKO [112]
Photosynthesis Is generally the opposite of cellular respiration. To drive the organisms metabolism photosynthesis has an exothermic reaction.
6 0
3 years ago
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