A man has an oak tree with dropping, discolored leaves, and poor growth. Which of the following professionals would be most be able to tell him what is wrong with the tree?
O an arborist
O a landscape designer
O a pomologist
an agronomist
Helpp

Which organ controls breathing? lungs alveoli heart diaphragm

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d.higher