According to the analysis, according to the analysis of public health data, the United States has more than 2,000 new crown diseases reported in the past week, which is equivalent to about 60% of the number of death cases in January. The report also said that the United States still ranks first in the world's first case and the number of death cases, accounting for 19% and 14% of the number of new crown diagnosed cases and death cases in the world.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

b.have there own function.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?