Answer:
The answer is below
Explanation:
The half life of a substance is the time required by that substance to reduce to half of its initial value. The half life is calculated using the formula:
Given that t = 87 years, half life = 29 years, therefore the quantity of strontium-90 left is:
That is one-eight of Strontium 90 would be left after 87 years
Answer:
The use of ladybugs and praying mantises to consume insect pests in gardens is an example of biological control of insect pets.
Answer: Incomplete dominance
Explanation:
Incomplete dominance is when 2 traits combine, such as a white tulip and a red tulip producing pink offspring. Codominance is where both traits show and don't mix, such as a white and red tulip.