B. Animals only
Explanation – All animals have the ability to excrete, reproduce and shows irritability. However, plants lack these properties. Plants excrete some chemicals but fails to reproduce new plants and also does not show irritability.
Animals have the ability to reproduce and is carried out by mating. They are able to excrete several substances like sweat. They are also sensitive to environmental conditions and respond to stimuli. Thus, they show irritability. Therefore, plants and animals possess different properties.
Answer:
The correct assertive is letter A.
Explanation:
Plants and animals have all the following characteristics: excretion,
irritability and reproduction. Let's talk firstly about the plants. Plants can
excrete through stomatal pores in the leaves. The main metabolic reactions
that occur in a plant that produces these residues are cellular respiration
and photosynthesis.
However, this place isn't the only that works as a way
of excretion. Plants also excrete solid or slimy things. Talking about
irritability, plants can have a reaction about all kind of stimulus, as
chemical as phisical. For instance, the lights, the weather, animals around
it, temperature and chemical changes inside the plants. About
reproduction, plants can reproduce inside the gyno, the female sexual
organ of plants.
The gynoecium consists of the ovary, which produces and
stores the eggs. In the eggs there are also the sex cells of the plant. Now
talking about the animals, they have all sort of process, but is more
complex than plants. You have about nine phylus in Animal Kingdom, and
all sort of phylus has your unique excretion, irritability and reproduction.
