To find an angle you use a variable like x or y. Sincw its a straight angle, it would be x +103 = 180. then you would subtract 103 on both sides. then you'll get x= 77 degrees
I think the first one is right !.... but the for the other one it's B .
QUESTION:- According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?
ANSWER:- Cells organized into tissues.
Answer:
Point mutations can cause serious changes to an organism if they change the way a protein works. A mutation in DNA alters the mRNA, which in turn can alter the amino acid chain. A base substitution may have three different effects on an organism's protein.
Explanation:
the tumor is made of cancer cells, and it can invade nearby tissues. Some cancer cells can move into the bloodstream or lymph nodes, where they can spread to other tissues within the body.