Question

The sun-loving plants are referred to as
A. Halophytes
B. Heliophytes
C. Heterotrophs
D. Sciophytes

Answer 1

Hint: They grow in open wide areas. They will have tiny leaves with hairy and wax protection. They are common to grow on mountains, grasslands. Higher temperatures favour them for photosynthesis.

Complete solution:
There are various kinds of plants existing in the world. Some plants need a specific condition to grow such as high salt content, chemicals, shade, more water etc. in the deficiency of these specific requirements they either would not be able to grow or would have stunted growth.

Let us learn the terms in the question to get to our answer.
> Option A- halophytes: Plants that can grow in high salt content conditions are halophytes. They can grow in water of high salinity. So they are mostly found in semi-deserts, marshes etc. they tend to sequester the toxic ions and salts which make them compatible in salty conditions.

> Option B- heliophytes: they are also called sunstroke plants. They grow in an isolated, sun intensive area. Exposure to the sun helps them to grow. So they are sun-loving plants. For example- thyme, roses, white clover etc. they were waxy coating to protect them against the sunlight and water loss.

> Option C- heterotrophs: an organism that can not produce its food and has to depend on others for the same is called a heterotroph. The food and energy source for them is some other plant or animal. Examples are- pitcher plant, European mistletoe etc. Even we humans are heterotrophs.

> Option D- sciophytes: Plants that love to grow in shade are sciophytes. They can conduct photosynthesis in only 20 percent of the sunlight.they have higher chlorophyll content and thin leaves. Their lens-shaped epidermal cells add to the specificity. For example-java moss, lycopodium etc.

So clearly the answer to the question is option B- heliophytes.

Note: Some trees do not need water to grow like cedars, oaks. They are called evergreen trees. Their roots are deeply rooted.
Chemotropism is a condition in which plants grow towards the chemical stimulus. A chemical gradient can affect it in both a positive and negative way.