Are you convinced by the fact that GMOs are safe?

In which situations is the principle of cross-cutting relationship useful in determining relative age?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

How do the sperm cells get from the stigma to the ovules?