Answer:
It would be b. 1 TT: 2Tt: 1 tt. Because crossing two heterozygous parents means the genotypes for them are Tt and Tt. Which means that there is only one way to get TT or tt and 2 ways to get Tt
Next to threat to birds put building national parks it'll give the a place to mate and lay eggs.Next to lack of protection against external threats put using wind energy. Next to fewer collection centers put recycling resources.