Which of the following statements about ecosystems are true? check all that apply: a. an ecosystem is a dynamic, interacting, interrelated set of biotic and abiotic components found in a particular location. b. energy flows through ecosystems while materials tend to cycle within them. c. ecosystems can be very large or very small.

Answer is all are correct.   A, B, C.

Explanation:

An ecosystem can simply be described as a large or small community of living organisms, such as plants and animals, living and interacting together and with their environment.

They are linked together based on energy flow and nutrients cycle.

Energy flow is simply the transfer of energy which they gather through various means of feeding that occur in the ecosystem.

Examples of ecosystem include forest, tundra, savanna, and desert among others.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.