Question

The table below shows the distribution of chromosomes in different organisms.



Which organism will have 18 chromosomes in the sex cells that result from meiosis?





A fruit fly
B alligator
C earthworm
D horse

Answer 1

help pls

Answer 2

I am pretty sure it is an Earthworm.

Answer 3

BTB (bromothymol blue) is an indicator that changes to yellow in the presence of carbon dioxide (CO 2 ). In neutral solution, BTB is green-blue.



A student was investigating photosynthesis and respiration. She filled four test tubes with water and BTB. She placed water plants in one test tube, water insects in another test tube, and both water insects and plants in another test tube. When she checked the color of the liquid in the test tubes after four hours, she observed the following.




What was most likely present in test tube 2?





A water and BTB only
B water, BTB, and insects
C water, BTB, and plants
D water, BTB, insects, and plants