There was only ten reported cases of Mad Cow in the United States in 2005.

Question

(1 point)
Responses

True
True

False.

Answer 1

True. In 2005, there were only a small number of reported cases of Bovine Spongiform Encephalopathy (BSE), commonly known as Mad Cow Disease, in the United States. Specifically, the U.S. had reported a few confirmed cases, not exceeding ten.

Answer 2

Oxygen is passed from one living form to another through each trophic level of the food chain.

(1 point)
Responses

True
True

False

Answer 3

False. Oxygen is not passed through trophic levels in the same way that energy or nutrients are transferred. Instead, oxygen is produced by photosynthetic organisms (such as plants and phytoplankton) and consumed by organisms during respiration. It plays a role in the overall energy flow and cycling of materials but is not specifically transferred between trophic levels.

Answer 4

Animals in the food chain need to eat less food than the animal in the previous level did to stay alive.

(1 point)
Responses

True
True

False
False

Answer 5

False. In a food chain, animals at higher trophic levels (such as carnivores) generally need to eat more food than those at lower levels (like herbivores) to meet their energy needs. This is because energy is lost at each trophic level due to metabolic processes; typically, only about 10% of the energy from one level is transferred to the next. Therefore, animals at higher levels often need to consume larger quantities of food to obtain sufficient energy.