<u>Answer:</u>
<em>The movement of air in a hot air balloon makes it move up into the sky.
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<u>Explanation:</u>
Convection takes place in fluids. Hot fluids are less dense than cold fluids and the difference in the densities determine the direction of flow of fluids. <em>Less dense fluid moves up and the denser fluid take its place. </em>
Thus hot air rises up and cold air fills its place. The hot air balloon contains burner which <em>pumps hot air into the balloon.</em>
Thus the air inside the balloon will be hotter than the air outside the balloon. <em>Thus the hot air rises up carrying the balloon forward.
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1.Fossils
2.Location
Scientist use fossils to study body structures and compare them.
Scientist use location to study location to see how organisms used their features to cross water or survive in different temperatures.
Answer:
option d, b, c
Explanation:
Starch molecules taken into the mouth from food substances are processed to an extent of 30% of its digestion. this is carried out by a specialized protein/ an enzyme that is present in the saliva; called amylase or ptyalin. this enzyme acts on the substrate molecule which in this case is starch molecules and convert it into smaller chains of simple sugars that includes maltose and dextrin which is digested in the small intestine.
If you wanted to obtain 100% roan calves, then it si required to cross parents who are homo-zygous (pure lines) for the genes associated with this trait.
<h3>What is a homo-zygous individual?</h3>
A homo-zygous is an individual who has the same gene variants or alleles for a given gene locus.
Conversely, a heterozygous is an individual who has different gene variants or alleles for a given gene locus.
In breeding, pure lines (or purebred) are homo-zygous individuals that may be crossed to obtain the desired trait in the descendence.
Learn more about homo-zygous individuals here:
brainly.com/question/13760394
A biome is an area of the planet that can be classified according to the plants and animals that live in it. 5 - 12+ Earth Science, Geography, Physical Geography.hope this helps,got it from google !
