Non vascular plants are very small because their lack of a vascular system means they do not have the mechanics required for transporting food and water far distances. ... Non vascular plants are small, simple plants without a vascular system. They do not have a phloem or xylem.
Option B, They lack tubes for transport and support
Explanation:
Non vascular plants do not have the system of tubules (xylem and phloem) that can provide them support or rigidity to become tall. Along with physical support, the transmission of food and water up to greater heights also become difficult due to absence of vascular tissues which further do not allow non-vascular plants to attain great heights.
the atomic number is relates to the number of particles in an atoms nucleus because is the number of protons.
Explanation:
the nucleus of the atoms has neutrons and protons in its composition. The protons which is the positive charges of the atoms is the same quantity with the atomic number.
Parasitism is the relationship that is present between Plasmodium and humans because one organism takes benefit from the other whereas the other get harmed by the other. In Plasmodium and humans relationship, human gets harmed from the mosquito by having malarial disease, while on the other hand, mosquito is benefitted by sucking of blood which is a food source for mosquitoes.