Answer:
A. Oxygen
Explanation:
During cellular respiration the cell uses oxygen to break down sugar. When sugar breaks down it produces energy in which your body needs. Blood picks up oxygen and releses carbon dioxide into your lungs.
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It would have 18. Because using logic no one was born with only half of their chromosomes. When you think about it, Plant reproduction is basically like human reproduction. Hope i could help
Answer:
The answers are B and D.
Explanation:
The co-evolution of plants and insects led to an increase in both populations due to the mutualist benefit of this relationship. As plants started to develop rewards for the insects (such as pollen and nectar) the insects started to be able to travel further and therefore colonize, then as diversification of flowers began, also the insects started to diversify in order to afford the vast amount of food for them. Insects helped plants to pollinate and plants helped insects to spread. But as insects were evolving, some mammals and birds were also doing so, therefore, plants developed fruits with seeds in order to increase their dispersal. As answer D exposes, animals not only enhanced pollination but they also provided seed dispersal.
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.