It is a sedimentary deposit<span> of mineral particles which are finer than sand but coarser than dust or clay,</span>deposited<span> by the wind. </span>Loess<span> is a type of silt which </span>forms<span> fertile topsoil in some parts of the world. ... The soil has few clay particles to hold it together.</span>
The answer is (b). The hydrophobic sequence of AA is not electrically charged so it isn't soluble in water that means it spans the membrane. The
hydrophilic sequences are attracted by water and they remain in the aqueous enviornments on the two sides of the membrane. This diagram should clarify.
The small, heart-shaped gametophyte called a prothallus is part of the life cycle of ferns. So, the correct option is (b).
A fern (Polypodiopsida or Polypodiophyta) is a type of vascular plant that reproduces through spores and lacks both seeds and flowers. Vascular plants have xylem and phloem. Their vascularity, or the presence of specialised tissues that conduct water and nutrients, sets them apart from mosses and other bryophytes.
A fern's prothallus is a flat, green, autotrophic, cordate (heart-shaped), dorsiventral, free-living, autonomous, nonvascular gametophyte that ranges in size from 1/8 to 113 inches (5-l0 mm). Typically, the gametophyte stage of the life cycle is known as the protothallium or prothallus. The spore that germinates becomes the prothallium.
Learn more about prothallus here:
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I would go for C. Accuracy is the best one if you have the right information then your numbers should be right
