Reproduction in Animals MCQ. These 100 Multiple Choice Questions on “Reproduction in Animals” will help you score full marks in your Class 8 Science exam.
Correct Answer: C. Speech. While all living organisms respire, reproduce, and digest, speech is a complex ability largely confined to humans. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Reproduction. Reproduction is the process by which organisms create new organisms of their own kind, ensuring the continuation of their species. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. They would become extinct. Without reproduction, no new individuals would be created to replace those that die, eventually leading to the extinction of the species. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. It ensures the continuation of their species. Reproduction is the process that allows for the creation of new organisms, ensuring that the species continues to exist even after the original organisms die. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Species continuation. While reproduction might indirectly contribute to individual survival in some cases, its primary evolutionary role is to ensure the continuation of the species. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. By ensuring the continuation of existing species. Biodiversity is the variety of life on Earth. Reproduction ensures that existing species continue and contribute to this biodiversity. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Sexual reproduction. Sexual reproduction is one of the two main ways that animals reproduce. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. The two main modes of reproduction in animals are sexual and asexual reproduction. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Sexual reproduction involves the fusion of male and female gametes to produce offspring. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. To produce sperms. The testes are the male reproductive organs responsible for producing sperms. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. To transport sperms. Sperm ducts are the tubes that transport sperms from the testes to the penis. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. The penis. Sperm ducts carry sperms from the testes to the penis, which then releases the sperms during copulation. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. To release sperms. The penis is the male copulatory organ that releases sperms into the female reproductive tract. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. Shell. A sperm cell has a head, a middle piece, and a tail. It does not have a shell. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. To produce eggs. The ovaries are the female reproductive organs responsible for producing eggs or ova. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. To nourish the developing embryo. The uterus is where the fertilized egg implants and the embryo develops. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Fertilization. Fertilization is the process of fusion of the male and female gametes. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. A zygote is formed. The fusion of a sperm and an ovum results in the formation of a zygote. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Fertilization that takes place inside the female body. Internal fertilization occurs within the female reproductive tract. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It divides repeatedly to form an embryo. The zygote undergoes rapid cell division and differentiation to form an embryo. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Embryo. The initial stages of development after the zygote is formed are referred to as the embryo. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Fetus. Once the major body parts and organs start to form in an embryo, it is referred to as a fetus. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Test tube babies. IVF is a process of fertilization where an egg is combined with sperm outside the body, in vitro. The term “test tube baby” is a misnomer as the babies do not actually grow in test tubes. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Because babies cannot grow in test tubes. The complete development of the baby takes place in the uterus of the mother. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Animals that give birth to young ones. Viviparous animals are those that give birth to live young, rather than laying eggs. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. Metamorphosis. Metamorphosis is the biological process of transformation from an immature form to an adult form in two or more distinct stages. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Butterfly. Butterflies undergo a complete metamorphosis from egg to larva (caterpillar) to pupa (chrysalis) to adult. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Budding. Hydra reproduce asexually by budding, where a new individual develops from an outgrowth or bud due to cell division at one particular site. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. By producing buds. A bud develops as an outgrowth due to repeated cell division at one specific site. These buds develop into tiny individuals and, when fully mature, detach from the parent body and become new independent individuals. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Binary fission. Amoeba reproduces asexually by binary fission, where the parent cell divides into two identical daughter cells. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. By dividing into two. In binary fission, the nucleus of the amoeba first divides to form two daughter nuclei. The cytoplasm then divides to form two daughter cells, each with a nucleus. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Cloning is the production of an exact copy of a cell, any other living part, or a complete organism. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Sexual reproduction involves the combination of genetic material from two parents. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. In asexual reproduction, a single organism can reproduce without the involvement of another. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. Asexual reproduction involves a single parent, so the offspring inherit the same genes as the parent. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Sexual reproduction involves the combination of genetic material from two parents, leading to genetic variation in the offspring. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. Asexual reproduction is generally faster and requires less energy as it does not involve the process of finding a mate, courtship, and gamete production. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Sexual reproduction is more complex and requires more energy due to the processes involved in finding a mate, gamete production, and fertilization. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. The genetic variation produced by sexual reproduction allows for better adaptation to changing environments through natural selection. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. In a stable environment, asexual reproduction can be advantageous as it maintains desirable traits in the offspring. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Humans reproduce sexually, involving the fusion of male and female gametes. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. Bacteria primarily reproduce asexually, commonly through binary fission. (Reproduction in Animals MCQ by Top100MCQ.com)
Advantages and Disadvantages of Different Modes of Reproduction
Correct Answer: C. It is faster and requires less energy. Asexual reproduction is generally faster and requires less energy as it does not involve the process of finding a mate, courtship, and gamete production. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. It does not lead to genetic variation. As asexual reproduction involves a single parent, the offspring are genetically identical to the parent, limiting genetic variation. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. It leads to genetic variation, which is essential for adaptation to changing environments. Sexual reproduction involves the combination of genetic material from two parents, leading to genetic variation in the offspring, which allows for better adaptation to changing environments through natural selection. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It requires two parents. Sexual reproduction requires the involvement of two parents, which can be a disadvantage in terms of time and energy expenditure. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. Asexual reproduction is more efficient for rapidly increasing the population size in a stable environment as it is faster and requires less energy. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. The genetic variation produced by sexual reproduction allows for better adaptation to changing environments, which is essential for the long-term survival of a species. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. In a stable environment, asexual reproduction can be advantageous as it maintains desirable traits in the offspring. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. The genetic variation produced by sexual reproduction provides the raw material for natural selection to act upon, leading to faster evolution of a species. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Asexual reproduction. In asexual reproduction, harmful mutations can accumulate more quickly as the offspring are genetically identical to the parent. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Sexual reproduction. Sexual reproduction allows for the purging of harmful mutations through recombination, which is the shuffling of genetic material during gamete production. (Reproduction in Animals MCQ by Top100MCQ.com)
Examples of Animals with Different Reproductive Strategies
Correct Answer: A. Hydra. Hydra reproduce asexually by budding, where a new individual develops from an outgrowth or bud due to cell division at one particular site. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Amoeba. Amoeba reproduces asexually by binary fission, where the parent cell divides into two identical daughter cells. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. All of the above. Humans, cows, and hens all reproduce sexually by internal fertilization, where the fertilization occurs inside the female body. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. All of the above. Humans, cows, and dogs are viviparous animals, meaning they give birth to live young. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. All of the above. Hens, frogs, and butterflies are oviparous animals, meaning they lay eggs. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Both A and B. Frogs and butterflies both undergo metamorphosis, which is the process of transformation from an immature form to an adult form in two or more distinct stages. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Both A and B. Some organisms like hydra and amoeba can reproduce both sexually and asexually depending on the environmental conditions. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Dolly the sheep. Dolly the sheep was a clone, which is an exact copy of another animal. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. All of the above. Temperature, food availability, and day length are all environmental factors that can influence reproductive processes in animals. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It can influence the timing of reproduction and the development of offspring. Temperature can affect various aspects of reproduction, including the timing of breeding seasons, gamete production, and the development of embryos. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It can influence the success of reproduction and the number of offspring produced. Adequate food availability is essential for successful reproduction, as it provides the energy and resources required for gamete production, mating, and parental care. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It can influence the timing of reproduction and the hormonal changes associated with it. Day length, or photoperiod, can act as a cue for animals to initiate reproductive processes, ensuring that breeding occurs at the most favorable time of year. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. A migratory bird. Migratory birds rely on changes in day length as a signal to initiate breeding and migration, ensuring that they reproduce at the appropriate time and location. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. A polar bear. Polar bears inhabit cold environments and are adapted to specific temperature ranges. Changes in temperature can affect their reproductive success and the survival of their offspring. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. A filter-feeding whale. Filter-feeding whales rely on large quantities of plankton for sustenance. Changes in food availability can significantly impact their reproductive capabilities and overall health. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: C. Phenological synchrony. Phenological synchrony refers to the timing of biological events, such as reproduction, in relation to environmental cues like temperature, day length, and food availability. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. It can disrupt the timing of reproduction and lead to mismatches with resource availability. Climate change can alter environmental cues, leading to mismatches between the timing of reproduction and the availability of essential resources like food and suitable breeding sites. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Decreased offspring survival. Mismatches between the timing of reproduction and resource availability can reduce the chances of offspring survival due to a lack of adequate food and suitable environmental conditions. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: A. Reproductive health is a holistic concept encompassing physical, mental, and social well-being related to the reproductive system. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: B. Infertility is the inability to conceive a child despite regular unprotected sexual intercourse. (Reproduction in Animals MCQ by Top100MCQ.com)
Correct Answer: D. All of the above sources can provide information and assistance with reproductive health concerns. (Reproduction in Animals MCQ by Top100MCQ.com)
Most Asked Important Questions on Reproduction in Animals
What is reproduction?
Reproduction is the process by which living organisms produce new individuals of their own kind. It is essential for the continuation of a species.
What are the two main modes of reproduction in animals?
The two main modes of reproduction in animals are sexual reproduction and asexual reproduction.
What is sexual reproduction?
Sexual reproduction involves the fusion of male and female gametes (sperm and ovum) to form a zygote. The zygote develops into a new individual.
What is asexual reproduction?
Asexual reproduction involves only one parent. The offspring is genetically identical to the parent. Examples include budding in Hydra and binary fission in Amoeba.
What is metamorphosis?
Metamorphosis is the transformation of a larva into an adult through drastic changes. An example is the transformation of a tadpole into a frog.
