6. According to Fr. Mendel's First Law of Genetics, Some alleles can cover up or hide the other. The one that is expressed in the phenotype is DOMINANT. T is the allele for tall
trees and t is the allele for short trees, what will the phenotype be of a tree that has the
genotype Tt?

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.