In a habitat recently affected by drought, which feature would most likely allow gymnosperms to persist when other plants fail?
Needle-like leaves prevent water loss
Gymnosperms (conifers such as pines, firs and cedars) dominate cold and dry habitats because their leaves are modified into hard, narrow needles.
Needle leaves have a very small surface area, a thick waxy cuticle, and stomata sunk into pits, all of which sharply reduce transpiration and conserve water during drought.
Gymnosperms are non-flowering plants: they bear no true flowers and no fruits, so options mentioning flowers, fruit-based dispersal or pollinator attraction do not apply to them.
Their fertilisation is by wind-borne pollen and is entirely non-aquatic; only pteridophytes and bryophytes need water for fertilisation.
Hence, needle-like leaves that prevent water loss are the key drought-tolerance feature.
Complete the analogy.
Meristematic Tissue : Dividing capacity :: Simple Permanent Tissue : _________
During a histological examination of a plant’s leaf stalk, elongated cells with irregularly thickened corners and very little intercellular space are observed. Which simple permanent tissue is present and what is its primary function in this region?
In geotropism, what does gravity act as?
Complete the analogy. Xylem : Water Transport :: Phloem : ______.
Since plants prepare their own food using sunlight, they do not require a digestive organ like a stomach. Instead, they possess tissues specialized for ____.
Which simple permanent tissue in plants is mainly responsible for photosynthesis and storage of food?
Which plant tissue is dead at maturity but functional for transport of water and minerals?
How do root hair help plants in the process of absorbing water and minerals from the soil?
A botanist is designing a water-efficient vertical garden for a city building. Which simple permanent tissue should be mainly used to provide both support and flexibility to withstand wind?
The capability of a single mature plant cell to develop into a complete plant, as proposed by Haberlandt, is called __________.