Question

Excretion, irritability and reproduction are characteristics

of:
A all animals and plants
B animals only
C plants only
D some animals and some plants only
Which one of the following functions is carried out by

Answer 1

The correct assertive is letter A.

Step-by-step 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.

Answer 2

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.