The correct answer is carbon film.
A carbon film or the carbonaceous film refers to a species outline of a fossil. It is a kind of fossil found in any rock when an organic substance is compressed, leaving behind the carbon film or residue.
When a species is buried beneath the various layers of sediment, the heat and pressure pile up. These circumstances make the liquids and gases to expel from the body, leaving behind a thin film of carbon residue, producing an outline of the original species known as a carbon film.
A cotyledon is a significant part of the embryo within the seed of a plant. Upon germination, the cotyledon usually becomes the embryonic first leaves of a seedling.
Answer:
It transports food to all the parts of the plant both upwards and downwards is the correct answer.
Explanation:
Phloem is tissue present in plants that transport the food prepare in the leaves to other parts of the plant.
Phloem has various types of specialized cells such as parenchyma cells, sieve elements, sclerenchyma, and companion cells.
Phloem transfers the food from source(leaves)to sink(to the other parts of the plant's cells), and in the spring process get reversed as the food stored in the sink move towards the developing buds through the phloem that's the reason phloem transports food to all the parts of the plant both upwards and downwards and movement of food is bidirectional.
