Parents are advised to space out the introduction of a new foods to infants in order to identify any potential allergens, the parts of foods that cause allergies. Allergens are substance often eaten or inhaled that are recognized by the immune system and causes an allergic reaction. The most common allergens are dust, pollen, and pet dander. The most common food allergens in this case are milk, eggs, peanuts, tree nuts, fish, shellfish, wheat, and soy.
Answer:
Do you mean planets?
if so,The heavy rocky particles within the inner part of the disk formed planetesimals and eventually, inner planets. In our solar system, the four innermost planets Mercury, Venus, Earth and Mars are known as inner planets. They lie inside the asteroid belt. They have volcanoes and valleys and are very hot compared to outer planets.Inner planets are much smaller than the outer planets, and are rocky with an iron core.
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Bacteria and other small organisms within an ecosystem play an important role in maintaining homeostasis of an ecosystem while also helping to break down dead materials. These small organism play a vital role in decomposing of dead plant and animal matter that then becomes nutrients for the ecosystem in the future provide fertile soil for new plant life to grow supporting the cycle of life in an ecosystem.
It helps with population and reproduction.
The correct answer is:
A. A group of related parts that work together to achieve a desired result.
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