Answer:
Only one chromosome from each pair randomly passed to the s*x cells during meiosis and leads to differences between the siblings.
Answer:
memory cells
Explanation:
to fight the reoccurrence of the invasion
Answer:
Animals perform cellular respiration.
Explanation:
As plants release Oxygen through the process of photosynthesis, animals use this oxygen (as well as other inputs) to perform cellular respiration which releases Carbon Dioxide. Cellular respiration helps animals get the energy from sugar converted into more simple molecules such as ATP (Adenine Triphosphate).
Answer:
because of factories and cars and smoking
Explanation: