Fatty acids are important for the cell membrane because the fatty acids present in membrane is cholesterol which provides the fluidity and mechanical support to the cell membrane.
Answer:
1 is
Explanation:
no. 1 is water cycle
no.2 is food chain
no.3 is carbon-oxygen cycle
no.4 is mineral cycle
The correct answer is option D, Speciation
In the allopatric speciation, the geographical barriers such as mountains or rivers causes isolation of the population. The two population groups get completely separate from each other and thus develop different sexual preferences for mating.
Antonie van Leeuwenhoek viewed moving objects from pond water under his microscope and named them “animalcules.
Antonie van Leeuwenhoek was a scientist and the first microscopist to observe protozoa and bacteria. He created microscopes that possess a single high-quality lens of small focal length and isolated tiny animalcules (microbes) from various sources such as pond water, well water and rain water. Through his experiments, he also calculated the sizes of the animalcules.