Answer:
Overproduction: Many organisms have many offspring, but not all will survive.
Genetic Variation: Individuals range withing a certain population
Struggle to Survive: Organisms compete for resources such as food, shelter, and most of all mates. They tend to have to keep themselves safe and stay away from predators.
Explanation:
This pretty much sums up the natural selection process
Sulfur is found mainly in proteins in the form of sulfhydryl groups or disulfide groups.
Sulfur is found in certain amino acids and proteins in the form of sulfhydryl groups
Answer:
B. It's much harder to provide the right atmospheric environment to cultivate obligate anaerobes, so it's been harder to study them.
Explanation:
Obligate anaerobic bacteria are the ones that can grow only in the absence of oxygen. These bacteria do not derive the energy from aerobic cellular respiration and die when exposed to the presence of oxygen.
Owing to their oxygen sensitivity, the culturing of obligate anaerobic bacteria requires special equipment to ensure the absence of oxygen.
The presence of aerobic conditions in laboratories makes their culture and study harder than that of the aerobic or facultative anaerobic bacteria.
Answer:
The particularly severe winter of 1777-1778 proved to be a great trial for the American army, and of the 11,000 soldiers stationed at Valley Forge, hundreds died from disease. However, the suffering troops were held together by loyalty to the Patriot cause and to General Washington, who stayed with his men.
Explanation:
