Answer:
a. a disease
Explanation:
Pathogens are disease-causing organisms. For example, some bacteria and viruses are pathogens for different species.
Therefore, a tree with pathogens present is likely to have a disease. Different pathogens affect different trees. Examples include Anthracnose
, which is caused by a fungus
Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.
Answer:
By the amount of silica
cause igneous rock is classified by their color, texture and chemical composition
They would have to experiment on the different types of plants and put them in different environments to test there's physical features but before that they have to make an hypothesis of what would happen and analyze
