Select all that apply. Which of the following are photosynthetic autotrophs?

plants
arthropods
all bacteria
protists
some bacteria
algae

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Which is the best example of plant tissue? the answer is d (just took the test)