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Blood plasma is a yellowish colored liquid component of blood that normally holds the blood cells in whole blood in suspension; this makes plasma the extracellular matrix of blood cells. It makes up about 55% of the body's total blood volume. blood plasma is a light yellow liquid, similar to the color of straw. Along with water, plasma carries salts and enzymes. The primary purpose of plasma is to transport nutrients, hormones, and proteins to the parts of the body that need it

Modern cnidarians are generally classified into four main classes: sessile Anthozoa (sea anemones, corals, sea pens); swimming Scyphozoa (jellyfish) and Cubozoa (box jellies); and Hydrozoa Turbellaria are one of the traditional sub-divisions of the phylum Platyhelminthes (flatworms)

Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides Therefore, the level of Y (region of higher concentration) would rise, X (region of lower concentration) would fall to equalize the solute concentrations on the two sides This explain osmosis

Aestivation or æstivation is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions.

Insulin and glucagon are hormones secreted by islet cells within the pancreas. They are both secreted in response to blood sugar levels Insulin Helps Control Blood Glucose Levels

Double circulation is the type of circulatory system that occurs in mammals, in which the blood passes through the heart twice before completing a full circuit of the body. Blood is pumped from the heart to the lungs and returns to the heart before being distributed to the other organs and tissues of the body. The heart is divided into two separate compartments to prevent oxygenated blood returning from the lungs from mixing with deoxygenated blood from the other parts of the body. its passes through the hear twice

An hen does not have mammary gland

A hygrometer is weather instrument used to measure the amount of humidity in the atmosphere. There are two main types of hygrometers -- a dry and wet bulb psychrometer and a mechanical hygrometer. Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer.

Root hair cells are adapted to absorb the water out of soil by osmosis – they have a large surface area, thin walls and are close to the xylem cells used for transporting water up the plant. Minerals such as nitrate ions cannot be absorbed by osmosis (which is the movement of water only) or diffusion (because the minerals are in very low concentration). The root hair cells have carrier molecules on their surface that pick up the minerals and move them into the cell against the concentration gradient. This requires energy, and is called active transport

Earthworm doesn't have red blood because they do gaseous exchange with the help of skin and the color of blood is red due to the presence of hemoglobin in the red blood cell which helps in carrying oxygen

Conjugation consists of the temporary union of two organisms and the exchange of micronuclear elements

Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant. The xylem, vessels and tracheid’s of the roots, stems and leaves are interconnected to form a continuous system of water conducting channels reaching all parts of the plants.

A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals. This means that saprophytes are heterotrophs. They are consumers in the food chain.

Yolk (3) & Albumen (4) provide food for developing chick Albumen is a solution of protein in water that is secreted by the oviduct of birds and some reptiles. Albumen surrounds the embryo and yolk, which it cushions within the shell of the egg. It is eventually absorbed by the embryo as food.