During asexual reproduction, the zygote develops into an embryo which turns to be an identical copy of the parent. Select one: a. True O b. False
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- External fertilization occurs in which type of environment? a. aquatic b. forested c. savanna d. steppeWhy is a second polar body expelled after fertilisation? a) To remove excess cytoplasm b) Because the oocyte must reactivate the incomplete meiosis before fusing with the sperm c) Before fusion with the sperm it must complete mitosis d) The fertilised oocyte is not a haploid cell until it expels the sperms mitochondriaWhy is a second polar body expelled after fertilisation (select one) a. The oocyte must recativate the incomplete meiosis before fusing with the sperm b. To remove excess cytoplasm c. Before fusion with the sperm it must complete mitosis d. The fertilised oocyte is not a haploid cell until it expels the sperms mitochondria
- After fertilisation, the resulting cell which gives rise to a new individual is the: (a) embryo (b) ovum (c) foetus (d) zygoteWhich cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg cell c a spermatocyte d the sperm cellHow does the production of sperm differ from the production of eggs? a. Sperm production involves meiosis, whereas egg production involves only mitosis. b. Meiosis during sperm production produces four sperm cells, whereas meiosis during egg production produces only one functional egg cell. c. Sperm are haploid, whereas eggs are diploid. d. Sperm production begins during fetal development, whereas the meiotic process that begins egg production doesn’t begin until puberty
- The..........is a hollow ball of cells that develops from the morula. a) Blastocyst b) Oviduct c) Ovary d) ChorionIs this true or false? a. Fertilization is followed by a cleavage, a period of rapid cell division without growth. b. From the process above, this results in the production of a large number of cells called blastomeres. c. In sexual reproduction, the offspring have the same combinations of genes as their parents. d. Sequential hermaphroditism occurs when an animal is one sex during one phase of its lifecycle and the opposite sex during another phaseIn asexual reproduction a diploid individual would produce which of the following Group of answer choices A. haploid offspring through meiosis B. diploid offspring through mitosis C. haploid offspring through mitosis D. diploid offspring through meiosis
- Draw a labelled diagram of a section through ovary.. sperm cells are formed when the generative cell divides by _________ a. one, mitosis b. two, mitosisc. one, meiosis d. two, meiosis e. four, meiosisWhich statement about meiosis (in humans) is FALSE? Select one: a. It reduces the amount of genetic material (chromosomes) by half b. It is part of the process of sexual reproduction c. The cells it produces are identical to each other d. It produces haploid gametes e. It occurs only in germline cells of the reproductive organs
