Offsprings formed due to sexual reproduction have better chance of survival. Why is this statement always true ?

Why are the offspring produced by asexual reproduction also called clones?

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

Higher organisms resorted sexual reproduction in spite of its complexity. Why?

A few statements with regard to sexual reprodction are given below. (i) Sexual reproduction does not always require two individuals. (ii) Sexual reproduction generally involves gametic fusion. (iii) Meiosis never occurs during sexual reproduction. (iv) External fertilisation is a rule during sexual reproduction. Choose the correct statements from the option below.

Read the following statements about asexual reproduction and select the correct ones. (i) It involves a single parent. (ii) It is slower than sexual reproduction. (iii) It produces progeny that are genetically identical with the parent but not with one another. (iv) The progeny of asexual reproduction can be termed as clones.

Study the following figures and select the correct statements regarding these. (i)A shows mode of asexual reproduction in sponges through internal buds. (ii)B shows sexual reprodction through zoospores in Chlamydomonas. (iii) C shows asexual reproduction through fragmentation in Penicullium. (iv) D shows external budding in Sycon.

Consider the following three statements related to the human male reproductive system and select the correct option stating which ones are true (T) and which ones are false (F). (i) Middle piece of spermatozoon is also termed as power house of spermatozoon. (ii) Vas deferens joins a duct from seminal vesicle and form vasa efferentia. (iii) Semen is a collection of secretions from the seminal vesicles, prostate gland and Cowper's glands and sperms from testes.

Correct the statement if required by changing of underlined words only. In sexual reproduction, meiosis and syngamy occur which is called apomixis.

Assertion : In plants, apomixis is a form of asexual reporduction that minics sexual reproduction. Reason : Apomixis involves the production of seeds without the fusion of gametes.

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution ? (i) Lower groups of organisms have simpler body design. (ii) Asexual reproduction is common in lower groups. (iii) Asexual reproduction is common in higher groups of organisms. (iv) The high incidence of sexual reproduction in angiosperms and vertebrates. Choose the correct answer given below.