Typically, spiders' blood is blue due to the presence of which of the following?
Correct answer: C. Haemocyanin
- A. Haemoglobin
- B. Hemerythrin
- C. Haemocyanin
- D. Both Options B and C are correct
Explanation
Spider's blood is blue due to the presence of hemocyanin. Haemocyanin, instead of having an atom of iron in its middle, has an atom of copper that binds oxygen. It absorbs all colors except blue, which it reflects, making blood appear blue.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
More Kingdom Animalia questions
Which is not a characteristic of triploblasts?
Chitinous Setae are the locomotory organs of annelids which are present on?
Sub-kingdom parazoa inlcudes:
Which of the following statements about chordates is true?
Which of the following is a diploblastic organism?
Gut in pseudocoelomates is made from which of the following?