Rotifera

Question 1

How big are Rotifera?

Answer 1

Small = 100-500 micrometers

Question 2

What is special about the pharynx of Rotifera?

Answer 2

Highly muscular with jaws for grasping/crushing/grinding prey

Question 3

What does the toes of Rotifera have?

Answer 3

Adhesive claws

Question 4

What are the 3 classes of Rotifera?

Answer 4

1- Monogononta
2- Bdelloidea
3- Seisonidea

Question 5

How does the class Monogononta reproduce?

Answer 5

Both sexually and asexually

Question 6

Explain asexual reproduction in the class Monogononta

Answer 6

Amictic females = parthenogenesis (diploid eggs are produced by mitosis) grow into females

Question 7

Explain sexual reproduction in the class Monogononta

Answer 7

Conditions must be met
Both mictic and amictic females
Mictic females produce mictic eggs = unfertilized will turn into males and produce sperm
Fertilized will turn into resting egg until right conditions will turn into amictic females

Question 8

Where are the class Bdelloidea found?

Answer 8

Anywhere from Antarctic lakes to hot springs

Question 9

How does the class Bdelloidea reproduce?

Answer 9

Entirely asexual = amictic females

Question 10

Where are the class Seisonidea found?

Answer 10

All marine and live in symbiosis with other organisms

Question 11

What does the class Seisonidea have instead of toes?

Answer 11

Adhesives disc