The buoyant force is equal to the weight of the fluid displaced by an object when the object is submerged into a liquid. Gravitational force is the force of gravity, and friction is the force created when two objects rub up against one another when at least one of the objects is in motion.
Answer:
The first heart sound (S1) represents closure of the atrioventricular (mitral and tricuspid) valves as the ventricular pressures exceed atrial pressures at the beginning of systole (point a). S1 is normally a single sound because mitral and tricuspid valve closure occurs almost simultaneously.
Explanation:
Answer:
You need to know how the structures of plant tissues and organs are directly related to their roles in physiological processes.
Plant organs are limited to roots, stems, leaves, flowers, fruit and cones.
Physiological processes are limited to photosynthesis, cellular respiration, transpiration, and reproduction.
Plant tissues are limited to meristematic, ground, dermal and vascular tissues.
Plant structures are limited to cambium, guard cells, phloem, seed, stomata and xylem.
Explanation:
Answer:
option B
Explanation:
The correct answer is option B.
The bond formed by donating electron is called Ionic bond.Ex LiF,NaCl
Bond formed by mutual sharing of electron between two atoms is know as Covalent bond. Ex CO, IBr
hydrogen bond is the bond formed between the hydrogen and highly electro negative compound. Ex: H₂O, NH₃
Polar bond is a covalent bond which is between two atoms where the electrons are unequally distributed.
