Answer:
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Explanation:
.Some examples : Sea Otter. The sea otter (shown below) is considered a keystone species as their consumption of sea urchins, preventing the destruction of kelp forests caused by the sea urchin population. ...
.Large Mammalian Predators. ...
.Sea Star
Vesicles form from the <span>endoplasmic reticulum, the Golgi apparatus and the plasma membrane. </span>
They are used to transport membrane and proteins between many different membranous organelles. <span>Vesicles form by budding from membranes of ER, Golgi and the plasma membrane.
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Vesicle<span> fusion is the merging of a </span>vesicle with other vesicles<span> or a part of a cell membrane.</span>
Answer:
The answer of your question is D I think
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.
can you please post the chart?
