Hey all I gotta say is look up the definition and you’ll find the answers it’s not that complicated
The right atrium receives blood returning from others parts of the body through the superior vena cava and the inferior vena cava.
Explanation:
The pathway of circulation begins in the right atrium which receives the carbon dioxide-rich deoxygenated blood returning through the systemic circulation.
The deoxygenated blood from regions superior to the heart, i.e., the head, neck, shoulder areas are collected through the superior vena cava and that from the parts inferior or lower to the heart like visceral organs, extremities, trunk, hip etc are brought through the inferior vena cava.
Both these venous systems (superior and inferior) fill the right atrium.
The right atrium then pumps the deoxygenated blood to the right ventricle via the tricuspid valve.
The right atrium is filled with blood during diastole.
Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain. The chemical backbones of the double helix are made up of sugar and phosphate molecules that are connected by chemicals bonds, known as sugar phosphate backbones.
Hope this helps
Because food prices are very high and some people can not afford them. And food supply is way up high so they don't have to worry about how much food is being made. They have to worry about the prices to make sure that they are reasonable enough for people to have money to buy them so that they won't starve to death.
Answer:
9/16= tall and yellow offspring
Explanation:
Two dihybrid pea plants for color and height are crossed to obtain the progeny. The genotype of both the parents is "TtYy".
Each of the dihybrid parent will form four types of gametes in 1:1:1:1 ratio= TY, Ty, tY and ty. A random fusion of gametes from both the parents would give a progeny in following phenotype ratio=
9 tall and yellow: 3 tall and green: 3 dwarf and yellow: 1 dwarf and green
