Which of the following must unicellular organisms do to maintain homeostasis?

a. specialize cells to perform specific functions
b. organize cells into tissues
c. use chemical signals to communicate between its cells
d. change food or sunlight into useful energy

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a.sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b.sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c.sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d.sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome