If you will make a Punnett square for this problem it will look like this:
T t
t Tt tt
t Tt tt
So the genotype in the first and third box would be Tt. On the second and fourth box, we have tt.
So your answer would be: C. 1 = Tt; 2 = Tt; 3 =tt; 4 = tt
D. Science
I think that's the answer, hope this helps!!
This could be one of two things, I need a bit more information, but perhaps you can decide.
Drip irrigation otherwise called trickle irrigation delivers water using tubes and emitters to the base of the plant. Subsurface irrigation uses a combination of tubes and emitters and is buried under ground. Good luck
In the fifteenth century, all three regions were making great advancement in culture and science/technology. Examples include art, architecture and exploration in Europe, Mathematics and art in the Islamic world, and new and groundbreaking inventions coming from China. We also see increased interaction and cultural exchange between the three regions through exploration and trade networks, such as the Silk Road.
However, we see divergence in power struggles between the regions, such as the battle in Spain between Islamic and Christian elements. We also see China retaining its characteristically closed nature in many ways, while Europe was increasingly looking outward and trying to establish a presence (or dominance) around the world.