The diagrams below are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.
23 and 23
23 and 46
46 and 23
46 and 46
Correct answer is A
No explanation has been provided for this answer.
The diagrams below are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.
Which of the following statements about P and Q is correct?
Both cells are structures for asexual reproduction
Both cells normally belong to the same individual
Both cells are found in plants
The union of both cells gives rise to a new mammal
Correct answer is D
P - sperm cell:
III. Nucleus IV. Mitochondria
Q- Egg cell:
I. Nucleus II. Cytoplasm.
Sperm-egg fusion is a cell-cell membrane fusion event essential for the propagation of sexually reproducing organisms.
The diagrams below are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question.
Which parts of P and Q fuse to complete the biological process?
III and I
IV and I
III and II
IV and II
Correct answer is A
P is a sperm cell whose nucleus (iii) then fuses with the egg plasma membrane (i) of the ovum (Q) and injects its nucleus and other organelles into the egg cytoplasm.
The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.
Which of the parts are correctly grouped?
(Inner ear I, IV) (Middle ear III) (Outer ear II)
(Inner ear III) (Middle ear II, IV) (Outer ear I)
(Inner ear III) (Middle ear II) (Outer ear III,IV)
(Inner ear II) (Middle ear I, III) (Outer ear IV)
Correct answer is D
No explanation has been provided for this answer.
The diagram below is an illustration of some parts of a mammalian ear. Study it and answer this question.
semi circular canals
ossicles
cochlea
external auditory meatus
Correct answer is B
No explanation has been provided for this answer.
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