EV HSC Chemistry 2nd Paper 5th Chapter MCQ Question Answer. Economic Chemistry. Chemical marine pollution can cause many disturbances which, in the shorter or longer term, can have a negative impact on the economy. These effects may be related to living organisms, ecosystems as well as humans and their activities. The methods used to assess … Read more
Last Updated: March 22, 2026 at 8:45 pm
EV HSC Chemistry 2nd Paper 4th Chapter MCQ Question Answer. Electrochemistry. Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity, considered an outcome of a particular chemical change or vice-versa. These reactions involve electric charges moving between electrodes … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 8th Chapter Note. Tissue and Tissue system. In biology, the tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 7th Chapter Note. Gymnosperm and Angiosperm. Gymnosperms are a group of plants which produce seeds that are not contained within an ovary or fruit. The seeds are open to the air and are directly fertilized by pollination. “Gymnosperm”, from the Greek, gymnos, “naked” and sperma, “seed”, develop their seeds on … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 6th Chapter Note. Bryophyta and Pteridophyta. A pteridophyte sensu lato is a vascular plant (with xylem and phloem) that reproduces via spores, and therefore was a member of the former and now invalid taxon Pteridophyta. The term is now used only informally to denominate a fern (monilophyte) or lycophyte. Most … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 5th Chapter Note. Algae and fungi. Algae is an informal term for a large, diverse group of photosynthetic organisms that are not necessarily closely related, and is thus polyphyletic. Included organisms range from unicellular microalgae genera, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 4th Chapter Note. Microorganism. A few harmful microbes, for example, less than 1% of bacteria, can invade our body (the host) and make us ill. Microbes cause infectious diseases such as flu and measles. There is also strong evidence that microbes may contribute to many non–infectious chronic diseases such as … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 3rd Chapter Note. Cell Chemistry. An electrochemical cell is a device capable of either generating electrical energy from chemical reactions or facilitating chemical reactions through the introduction of electrical energy. A common example of an electrochemical cell is a standard 1.5 – volt cell meant for consumer use. This type … Read more
Last Updated: March 22, 2026 at 8:45 pm
HSC EV Biology 1st Paper 2nd Chapter Note. Cell Division. Cell division is the process cells go through to divide. There are several types of cell division, depending upon what type of organism is dividing. Organisms have evolved over time to have different and more complex forms of cell division. Most prokaryotes, or bacteria, use … Read more
Last Updated: March 22, 2026 at 8:45 pm