Blood is made up of red and white blood cells, platelets and plasma. The plasma consists of water (mostly) and dissolved nutrients. When blood is exposed to air, the blood will clot, due to aggravation of the platelets. Then you get a forming scab that will help heal the part that the blood is being exposed from.
Answer:
a. The water changes to yellow, this is because lots of carbon dioxide is produced by the snails.
b. Water remains green, this is as a result of the elodea undergoing both photosynthesis and cellular respiration therefore elodea produces both oxygen and carbon dioxide.
c. Water changes to yellow as lots of carbon dioxide is produced by the elodea as a result of cellular respiration.
d. Water changes to yellow, this is because more carbon dioxide is produced by both the snails and elodea
Explanation:
The type of relationship that is between snails and elodea is a symbiotic type of relationship because the snails feeds on algae and produces carbon dioxide which the elodea takes in. When elodea undergoes photosynthesis, it produces oxygen the snails uses this oxygen during respiration.
Umbilical cord. The umbilical cord attaches the fetus to the placenta. The cord contains blood vessels that bring nutrients to the developing fetus.
Answer:
the network of hydrogen bonding present between water molecules
Explanation:
a high input of energy is required to transform one gram of liquid water into water vapor, an energy requirement called the heat of vaporization.
