Which one of the following correctly describes the location of some body parts in the earthworm Pheretima?
Correct answer: C. Two pairs of testes in the 10th and 11th segments
- A. Four pairs of spermathecae in the 4th and 7th segments
- B. One pair of ovaries attached at the intersegmental septum of the 14th and 15th segments
- C. Two pairs of testes in the 10th and 11th segments
- D. Two pairs of accessory glands in the 16th and 18th segments
Explanation
In the Pheretima, two pairs of the testis sac are situated in the tenth and eleventh segments. Each testis sac of the tenth segment encloses a testis and a seminal funnel. Each testis sac of the eleventh segment encloses a testis, a seminal vesicle and a seminal funnel.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
Practise Biodiversity and Variety of Life
3,130 free Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.