Loading question...
You are in free guest mode. Timed Practice Revision List Attempt History Progress Tracking Create a free account to unlock these tools
Prev Next
Practice Reading: Multiple Choice, Single Answer ID: #38986 Sharks
Instructions
There may be very few and far between cases of virgin births in humans and mostly ensconced in mythology; but cases of virgin births have been observed in animals. These births have surprised the scientists and common man alike. Some time back. a female white spotted bamboo shark gave birth to two babies in a zoo; it came as a shock to the zoo keepers as she had lived in the zoo alone for the last six years. It is a known fact that animals are capable of laying eggs without mating; but these eggs are infertile. In the case of sharks, it was observed that these species use an internal fertilization process to produce their young ones. This has been recorded only in about 70 species of vertebrates (only about 0.1 percent of the total). Lizards have been known in nature to utilize this mode, but seeing it in the case of higher vertebrates has surprised many.

The case of virgin births among sharks surprised the scientists because such births were

* Click on the correct answer

Result:

With a free account: Retry and compare every attempt.
Be the first! No community answers here yet — submit yours and help others learn.
How difficult was this question?
Others found: 100% Easy · 0% Medium · 0% Hard
Saving...