Question

ginkgo biloba sperm have ________ (of) flagella propelling the cell into the archegonium. a 1 b 2 c hundreds d thousands hmm, that wasnt the right answer. lets give it one more try.

Explanation:

Ginkgo biloba sperm are unique among seed - plants in having a large number of flagella. While options a (1) and b (2) are too few (as in animals or some algae), and option c (hundreds) is incorrect. Ginkgo biloba sperm have thousands of flagella that help in their movement towards the archegonium.

Answer:

d. thousands