Answer: An extra cytoplasm enhance survival of a developing oocyte in such a way because cytoplasm serves as a reservoir of lipids, polysaccharide and lipids for the developing embryo.The more the cytoplasm content, more will be the nutrients for the developing embryo. The cytoplasm forms the yolk and provides nourishment to the developing embryo. As we know that the developing embryo requires more nutrition and the main source of nutrition is cytoplasm because the sperm has no reservoir of its own to provide nutrition to embryo.
Thus, an extra cytoplasm enhance the rate of survival of a developing oocyte.
Extra cytoplasm in a developing oocyte supports survival by providing necessary nutrients from fertilization to implantation, and energy for cell divisions transforming a zygote into an embryo. It also contains the mechanism preventing polyspermy, thereby ensuring successful fertilization and further development.
Retaining extra cytoplasm in a developing oocyte boosts its survival chances by supplying the zygote, formed post-fertilization, with essential nutrients needed during the period up to implantation into the uterus. This is crucial as the sperm solely contributes DNA and not cytoplasm at fertilization. Accordingly, the cytoplasm and all of the cytoplasmic organelles in the developing embryo, including mitochondria, are maternally sourced. Mitochondrial DNA is maternally inherited and critical for tracing biological lineage.
Upon fertilization, the larger amount of cytoplasm also provides energy and raw materials for the rapid cell divisions that take place in the zygote during its journey to the uterus. This process transforms the zygote from a single cell into a tightly packed sphere of cells referred to as a morula which consequently evolves into a blastocyst. The blastocyst implants in the uterine wall and further develops into an embryo.
Furthermore, the oocyte's cytoplasm possesses a mechanism to prevent polyspermy, the penetration of more than one sperm. Polyspermy leads to a triploid organism with three sets of chromosomes which is incompatible with life. Therefore, the cytoplasm plays a crucial role in ensuring successful fertilization and development of the embryo, making enhancing cytoplasmic retention essential for the survival of the developing oocyte.
#SPJ3
The trait causes a change in the environment surrounding the organism.
The trait decreases the number of genes in the body cells of the organism.
The trait is due to the genetic code present in the organism’s gametes.
Answer: The correct answer is-
phytoplankton .
In the given food chain of aquatic ecosystem, Phytoplanktons occupy the first trophic level ( as they form the base of the food chain) and they are called producers ( synthesize their own food using carbon dioxide and water in the presence of sunlight).
The energy is then transferred to the subsequent trophic levels from phytoplanktons to consumers ( krill, seals, and sharks).
If phytoplanktons are removed from the food chain, there will be no food available for krill and they will start to decline, which will eventually cause the decline in the subsequent trophic levels ( that is seals and shark).
Thus, phytoplanktons is the right answer.
Answer:
Well to begin with, the thermal energy is mostly provided by the energy contained in warm water, when mixed with the other two components the chemical units are modified to form a composite solution that will result in an energy release, this energy release generate a movement, which in this case is the eruptive movement simulating the eruption of a volcano.
Explanation:
By mixing the vinegar (which is an acid) with the baking soda (which is a base), they react and transform into water, sodium acetate (a salt), and carbon dioxide (a gas). Carbon dioxide (CO2) is the gas that causes bubbles to form from the eruption of the volcano and balloons to swell.