Spirogyra are green algae that can reproduce sexually. Which of the following features identifies reproduction in Spirogyraas sexual reproduction versus asexual reproduction? A. The cells of the parent algae have a nucleus.

B. Each offspring contains chloroplasts.

C. Several offspring can be reproduced at the same time.

D. Genetic material is contributed by two parent cells.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Mosquitoes eat the blood of a sloth