In turtles, the heart has two atria and a single ventricle partially divided by a wall of tissue called a septum
In crocodiles, there are two atria and two separate ventricle
- Oxygen cycle is the cycle which maintains the level of oxygen in the atmosphere.
- Oxygen from the atmosphere is used up during combustion, respiration and in the formation of oxides of nitrogen.
- This oxygen is returned to the atmosphere by lithosphere.
- This forms the oxygen cycle in nature.
Hope you could get an idea from here.
Doubt clarification - use comment section.
Glucose, amino acids, lipids and glycerol.
Explanation:
Carbohydrate is broken into glucose molecules
protein is broken into amino acids
Lipid is broken into fatty acids and glycerol.
Starch present in the food is broken to glucose molecules to yield energy.
Protein is digested in stomach by the action of pepsin, trypsin and chymotrypsin.
Glycosidic bonds of starch is broken down by salivary and pancreatic amylase enzyme.
fat is acted upon by lipase enzymes from pancreatic and intestinal juices.
these are broken into smaller units so that gets absorbed by blood and carries throughout the body.
Answer:
Mendel was interested in the offspring of two different parent plants, so he had to prevent self-pollination. ... Then he pollinated them by hand with pollen from other parent plants of his choice. When pollen from one plant fertilizes another plant of the same species, it is called cross-pollination.
Explanation:
Upper rocky layer of the Earth that forms the jigsaw of plates that take
part in the movements of plate tectonics. The lithosphere comprises the
crust and a portion of the upper mantle. It is regarded as being rigid
and brittle and moves.
