Answer:
Explanation:
What did I do? Why aren't you answering? Do you not like me anymore? Do you like someone else? Am I not good enough for you? Do you hate me ? Am I being Annoying?
None of the above because they are non pollutant
Answer:

aka Ethenone
Explanation:
Ethenone is an organic compound made out of the elements Carbon, Hydrogen, and Oxygen. It is an example of a covalent molecule. The Hydrogens are single bonded to the carbon and then the carbons and oxygen are double-bonded to each other. Additionally, because there are 2 Hydrogens and 1 Oxygen the ratio is 2:1, as stated in the question.
Answer:
C is the answer for the question
Answer:
b. Red blood cells that lack nuclei
d. A fully erect posture associated with bipedalism
Explanation:
Eccrine glands can be found on horses, you may have seen horses sweeting. The pressure sensors can be found in other apes too. Fully erect posture is a characteristic of humans, other apes or monkeys may walk sometime like this, but their main locomotion is in 4 extremities. Non nucleated is a characteristic that gives an advantage because more oxygen can be carried inside red blood cells making respiration more efficient.