Answer:
e. cutin
Explanation:
Plant exhibit many variations to withstand the temperature variations, desiccation and increased UV exposure which are some of the factors associated with land habitat. Cutin is a waxy substance that is found in the outer walls of the epidermal cells of plants. Cuticle in plants serves to make the outer most covering of aerial parts of the leaves and non-woody stem of herbaceous plants. The cuticle is made of cutin.
Cutin serves to protect the plant’s aerial surfaces from excess water loss. It also filters the excess UV light and thereby protects the underlying plant parts. The thickness of the cuticle varies in different plants depending upon the environmental conditions. The leaves of plants adapted to hot, dry climates have thick cuticles. The thickness of the cutin layer also varies in different parts of a plant. For example, the upper epidermis of leaf generally has a thicker cuticle than the shaded and relatively cooler lower epidermis.
A scientific law would be your answer.
There are many laws that are defined using formulas.
I hope this helps!
~cupcake
Explanation:
A high level of biodiversity leads to a better sustainability of the natural environment.
- Biodiversity is the variation of plant and animal species in an ecosystem.
- The natural environment deals with the living and non-living part of the ecosystem.
- A wide range of diversity in the ecosystem brings in broader level of interaction among the different constituents of the environment.
- Biodiversity ensures there is no over dependence on a particular resource in the environment. Organisms have access to a pool of resources.
- In adverse times, it ensures that quite a number of organisms are still able to live and thrive well.
Learn more:
Biodiversity brainly.com/question/10723602
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Answer:
In roots, the vascular tissues, i.e., xylem and phloem, are found in the central vascular cylinder, while in stems these tissues are dispersed throughout the stem, generally arranged as a ring towards the outside of the stem (epidermis)
Explanation:
Vascular plants have two different transport tissues: xylem and phloem. The xylem transports water from roots to stems and leaves, while the phloem transports food (i.e. dissolved sugars) from the leaves to all parts of the plant. In roots, vascular tissues form a central core in order to withstand stretching forces. Moreover, in stems, vascular tissues are dispersed (generally concentrated towards the epidermis), in an arrangement that enables them to resist compression and bending forces.
