Well, to answer your first question, Because there are places on Earth that are both biologically rich — and deeply threatened. For our own sake, we must work to protect them. and for your 2nd question, 3 characteristics of magnetic reversal are: field, bar magnet, and molten material. Hope this helps
Answer:
Lichens that colonize bare rock secrete acids that break down the rock and start the soil-production process. Also, as lichens die, they provide some organic matter that also contributes to soil. Mosses can then colonize the thin soil; as mosses die, the soil thickens more allowing other hardy species to colonize
Explanation:
Answer:
i asked my bro and he just stared at me like "o>O" they do because theres air in there maybe? LOL
Explanation:
Answer:
Explanation:
Given frequency of the two alleles i.e "B" and "b" are equal .
As per Hardy–Weinberg equilibrium, sum of frequency of the two alleles is equal to one.
i.e 
Since 
and 
will be equal to 0.5
Frequency of genotype "BB"
Frequency of genotype "bb"
As per second equation of Hardy–Weinberg equilibrium,
Substituting the values of p and q in above equation we get -
Red beetles have genotype BB and Bb
number of red beetles with genotype (BB)
number of red beetles with genotype (BB)
Total red beetles
Frequency of red beetles
its d for shure because it comes from the oveares first when its created the egg
