The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.
Answer:
The Hershey–Chase experiment in 1952 confirmed that DNA (rather than protein) is the genetic material of the viruses that infect bacteria, providing further evidence that DNA is the molecule responsible for inheritance.
Explanation:
Answer:
B because aveoli are part of the lung Branch and capillaries take in the oxygen with blood?
Explanation: my guess since carbon dioxide also needs to be excreted out of lungs.
The answer to this question is D
