Answer:
Increase in prices of commodity
Scarcity of petroleum
Economic recession
Lack of social amenities e. G water and light
Explanation:
Am not so sure tho but I think I've helped a bit with this
I believe it would be Rhizobium bacteria
Evolution is caused by genetic mutations that become favorable for survival.
For example if a bird has a mutation that gives it a longer beak and it lives in an environment in which a longer beak lets the bird catch more food- the longer beak becomes a favorable trait.
Now the bird is able to survive “better” thus it lives longer(due to its ability to catch more food). Because of this it reproduces more and passes the trait on to its offspring.
Overtime this mutation takes over the population of birds in the area.
Answer:
Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula. All-stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas cloud and end as a star remnant.
Explanation:
Answer
if B and b are the two alleles , B + b = 1 and B ^2 +2 Bb + b ^2
= 1. If 16% of mice are homozygous black , B ^ 2 =0 .16, meaning B = 0 .4 and b = 1 - 0.
hope this helps
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