The phenotypic ratio obtained from a cross for only genetic trait, assuming it follows the simple mode of inheritance which is complete dominance, it would be 100% white cow, assuming roan bull is recessive.
Answer:
Biodiversity is a major factor in terrestrial regions. true
Cold, hot, wet and dry are factors that contribute to climate
false
Cloud cover, precipitation and deserts are elements that contribute to weather
True
Trade winds blow easterly and northern
True
Answer: D) By decreasing the activation energy of a reaction
A catalyst is a substance that speed up the rate of chemical reaction without affecting the product of the reaction. They only affect the rate of reaction not the yield of reaction.
Catalyst provide an alternative reaction pathway that has lower activation energy than that of uncatalysed reaction. It increases the frequency of collision and because of these greater collision which lowers the activation energy of the reaction.
By showing how living things get energy from another.
