The cells of organisms found in the phylum Porifera (sponges) are not organized into tissues. What structures are absent in organisms belonging to the phylum Porifera? A. organelles

B. genes

C. organs

D. cells

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.

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

What factors contribute to the effect an environmental toxin has on the human body?