A plant can have either broad leaves (B) or narrow leaves (b). A plant with genotype Bb is crossed with a plant with genotype bb. Which Punnett square
correctly represents this cross?
B
b
B|Bb
Bb
O A.
B|Bb
Bb
B
в вы
Bb
O B.
b Bb
Bb
b
B Bb
Bb
O c.
b
Bb
Bb
b
BBb
Bb
O D.
b
bb
bb

Idont know but good luck; )

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the  pharynx, the  larynx, enters the  trachea, moves through the  bronchi  andbronchioles  till the alveoli.