Answer; The correct answer is-
Small polar and hydrophobic molecules can pass through a lipid bilayer/ plasma membrane.
Plasma membrane ( surrounding the cytoplasm of cells) is a selectively permeable membrane that is primarily composed of two layer of phospholipids ( hydrophobic in nature) and regulates the entry and exit of molecules in and out of the cell.
As it is hydrophobic in nature, so it does not allow large polar molecules ( such as proteins) and ions to cross it.
Thus, only small polar molecules and hydrophobic ( that is non polar) molecules can pass through it.
Example- Water, ethanol, oxygen, carbon dioxide
Answer:
The types of volcanoes that I am aware of are dormant, active, and extinct. Active volcanoes are volcanoes that have erupted in the past 10,000 years. Dormant volcanoes are active volcanoes that are supposed to erupt in the future. Extinct volcanoes are volcanoes that have not had an eruption in the last 10,000 years and is not expected to erupt.
Answer:Artificial selection is the process by which humans choose individual organisms with certain phenotypic trait values for breeding. If there is additive genetic variance for the selected trait, it will respond to the selection, that is, the trait will evolve. evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. Evolution can an animal to make it almost unrecognisable, like cephalopods and how they evolved to make them more buoyant
