Make sure you post the picture of the tree, so I can answer.
A cell can only respond to signals from other cells, not from the physical environment. receptor activation. The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on: the presence of the appropriate receptors on the cells of the target tissue or organ.
Ageing is the word that describes all that change as the organism evolve and it also includes growth !
Fungi are __________, whereas plants are autotrophs.
A) autotrophs
B) heterotrophs
Answer: Heterotrophs cannot make their own food, so they must eat or absorb it. For this reason, heterotrophs are also known as consumers. Consumers include all animals and fungi and many protists and bacteria. They may consume autotrophs or other heterotrophs or organic molecules from other organisms.