Answer:
“Non-self” materials have proteins and other substances on their surfaces that the body doesn't recognize, called antigens.
Explanation:
Based on the picture, how did the sunflowers show their competition? Why should they compete?
I choose this as a scientific question because there are numerous sunflowers that occupy the land. Living things try to survive with their environmental conditions. Thus, competition happens among the organisms.
which is more likely to be the cause of down syndrome the egg or the sperm?
The egg
They both deal with diseases just that pathogens cause disease while antibodies fight against disease
Since Tall is dominant...the plant Tt ill be tall