Answer:
the answer for the number 25 is 14
Lack of predators.
An abundance of Food.
The inside of your nose is called the nasal cavity. A mucous membrane lines your nasal cavity and it helps keep your nose moist. Little hairs inside your nasal cavity help filter the air you breathe in and block dirt and dust from getting into your lungs.
Here's the link for you to go more in-depth on your own. http://sciencenetlinks.com/student-teacher-sheets/mechanics-respiration/#:~:text=The%20inside%20of%20your%20nose,from%20getting%20into%20your%20lungs.
Enzymes are proteins that speed up chemical reactions without being used up.
p = m / V (Density = Mass / Volume)
p = m / (w * l * h) (Density = Mass / [Width * length * height]) (V = w * l * h)
p = 120 / (5 * 4 * 3) (Mass = 120g [Given] w=5 l=4 h=3 [Given])
p = 120 / 60
p = 2 g/cm^3
Answer is B (2)