The growth form of a plant, comprising its size, shape and orientation is known as:

Correct — A. In botany, habit is the growth form of a plant — its size, shape, orientation and general appearance.

It is the word behind the everyday sorting of plants into herbs, shrubs, trees, climbers and creepers, a classification made on how the stem grows and not on where the plant lives.

The stem's phrase 'growth form... size, shape and orientation' is the textbook definition of habit, so the match is exact.

Why the others are wrong

• (b)
  environment — Environment is everything acting on the plant from outside — light, water, soil, temperature. It shapes the growth form but is not a name for the form itself.
• (c)
  habitat — Habitat is the place an organism lives, such as a pond or a desert. Habit and habitat differ by two letters and by everything else, and that near-identity is the trap here.
• (d)
  growth pattern — Growth pattern is not the botanical term of art. It suggests how growth proceeds over time rather than the settled form the plant takes, so it misses the definition the stem gives.

Habit and habitat are the paired terms of basic biology, and SSC leans on the near-identical spelling.

Habit is intrinsic: the form the plant takes — herb, shrub, tree, climber, creeper — set by stem thickness, height and orientation.

Habitat is external: the physical place the organism occupies, with its own climate, soil and community of species.

The same distinction carries into animal biology, where habit covers the mode of life and habitat the place of life.

Key facts

• Habit is the growth form of a plant, covering its size, shape and orientation.
• Habitat is the place where an organism lives.
• Plants are sorted by habit into herbs, shrubs, trees, climbers and creepers.

Common traps

• Reading habit as habitat under time pressure, which is the whole point of the item
• Choosing 'growth pattern' because it repeats the stem's own word 'growth'

No directly related past PYQ was found.