The diagram shows a bean plant growing in soil.

Which labels best complete the diagram?

X: Positive gravitropism
Y: Negative gravitropism

X: Negative gravitropism
Y: Positive gravitropism

X: Thigmotropism
Y: Hydrotropism

X: Hydrotropism
Y: Thigmotropism

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

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

What do nitrifying bacteria convert