The answer is the anther because an ovule and an ovary are female reproduction parts and a pollen grain does not produce sperm nor is it hard.
Could you possibly tell me what exactly you need help with? As my computer already has viruses, I am surely not going to click on any of those. Sorry!
Correct Answer is A. They were able to increase their productivity due to the popularity of tractors.
Establish a hyperosmotic interstitial medullary concentration
No clue. So sorry… I need points….