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<span>Every atom of the blank carbon has 6 protons
</span><span>element</span>
Answer:
a scar is a environmental change
C
Neurons and other components come together to form nerve tissue
The brain is formed of many different parts and types of tissues
The central nervous system runs through the body and consists of many parts
A human being has many different systems
Answer:
primary, secondary
Explanation:
primary immunodeficiency diseases are present at birth and usually stem from genetic errors, whereas secondary immunodeficiency diseases are acquired after birth and are due to agents such as infections, irradiation, or steroids
Anaphylaxis is <span>a severe systemic allergic reaction characterized by bronchoconstriction, hypotension, and shock.</span>