Organelles are special structures that perform functions for cells. Which organelle would you expect to find in plant cells but not in animal cells?
A:Nucleus
B:Chloroplast
C:Mitochondria
D:Vacuole

15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.