What are the offspring of sexual reproduction related to their parent?

Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals.this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.

Why do you think the puppy litter was all dark-haired?

The influenza virus cause the flu, but not other diseases. why?