Question

energy flow is one - way because
all of the energy in an ecosystem stays constant
the amount of energy a producer harvests is equal to the amount of energy consumers consume
with each energy transfer, some energy escapes as heat
energy cannot be created but it can be destroyed
there is only one form of energy
question 2 (2.5 points)
on a very hot summer day and a few months later on a very cold winter day, you go outside and take your temperature. each time your body temperature is 37 degrees celsius. this example illustrates
adaptation
cellular reproduction

Explanation:

1. For the first question, energy flow is one - way in an ecosystem because with each energy transfer in the food chain, some energy is lost as heat according to the second law of thermodynamics. Energy cannot be recycled back in the same form, so it moves in one direction from producers to various levels of consumers.
2. For the second question, maintaining a constant body temperature of 37 degrees Celsius in different environmental temperatures (hot summer and cold winter) is an example of homeostasis. Homeostasis is the ability of an organism or system to maintain a stable internal environment despite external changes.

Answer:

1. with each energy transfer, some energy escapes as heat
2. homeostasis