Natural selection is a gradual process where biological traits become more or less common in a population depending on the usefulness of the trait.
C. Over time, species evolve by adapting to their environment.
Insecticide resistance developed through d. natural selection.
Answer:
Lacks the right key to unlock many cells.
Explanation:
Avian influenza (H5 N1) rarely transmitted from poultry to humans because it lacks the right key to unlock many cells in the upper respiratory tract so due to this action the virus is rarely transmitted to humans. Sometimes it is lethal to humans due to absence of antibodies for this type of virus. It is rarely spread from person to person due to inability to enters the other human body.
Answer:
Cardiovascular is the correct option
Cold blooded, lay eggs in water, and respire both by skin and lungs, and they have a three-chambered heart.
1) A
2) B
3) C
4) D
5) E
6) F
7) G
8) H
The answers are already in the picture.
