2. Complete the chart below. The first one is done for you. Liesita factor Explanation of limiting factor Example
Physical
Barriers
A river, mountain or other landform The animals and plants on an island can't
that blocks an organism from moving migrate to other seas.
to another suitable place.
Sunlight
Water
Temperature
Soil

Physical barriers stops migration of animals.

Explanation:

Physical barriers are the substances that prevent the migration of movement of organism from one region to another. River, mountain or other landform are the examples of physical barrier that prevents movement. The animals and plants that are separated from the external environment breeds within the existing population and adopt itself towards the change that occurs in the environment.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products