2006-11-29 15:59:53 · 3 answers · asked by Samdog2 3 in Science & Mathematics ➔ Biology
Plants - pollen (male) and ovule (female)
Animals - sperm (male) and ovum (female)
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2006-11-29 16:27:25 · answer #1 · answered by PaulCyp 7 · 1⤊ 0⤋
Animals may reproduce by two methods :
(a) Asexual reproduction
(b) Sexual reproduction
(a) Asexual - It may be vegetative or by special reproductive units.
(b) Sexual - Fusion of male and female gametes take place
reproduction without the involvement of gametes (ova, sperm). It is of two types:
Vegetative reproduction
Special reproductive units
(i) Vegetative Reproduction - In vegetative reproduction, 'there is no specialized part of the body which acts as the reproductive unit but the whole of the body of an organism has the capacity to produce a new individual, if broken into two or more parts.
In case of vegatative reproduction, the parent body may break or split into smallest parts or fragments (Fragmentation). This may occur either by itself (autonomously) or as a result of an injury. In either case, each part grows into a complete individual. But when this happens due to an injury it is called Regenerative Reproduction
Regenerative Reproduction is found only in lower animals i.e. some invertebrates.
2006-11-29 18:12:10 · answer #2 · answered by veerabhadrasarma m 7 · 0⤊ 0⤋
Gametes are the sex cells:
In plants they are called pollen (male) and ova (female).
In animals they are called sperm (male) and egg (female) cells.
2006-11-29 16:28:01 · answer #3 · answered by Em_butterfly 5 · 1⤊ 0⤋