Answer:
When the plant inherits a recessive allele from both parents.
Explanation:
All organisms need both recessive alleles from the parents to receive that gene, or allele.
If an ecosystem lost its producers, there would be no way for energy to move up the web and the ecosystem would most likely fail. Without these energy-capturing organisms, herbivores would get no energy or food. Without them, carnivores would get nothing as well. Because decomposers get energy from all three, they would also die out.
If only decomposers were removed, there would be a lack of nutrients in the soil for plants. This would result in the above (loss of energy, food, and other commodities).
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B) 60° north latitude and 0° longitude
During respiration, members of the animal kingdom use oxygen and then release carbon dioxide as a waste gas.
Members of the animal kingdom have a respiratory system that is composed of muscles, and airways that functions together to transport air into lungs, and the oxygen is used by cells. Carbon dioxide is also transported away from the cells as a waste gas. Respiration relies on other systems, such as the circulatory system, to transport oxygen and carbon dioxide to and from cells.