C)old or young
A dichotomous key is a tool or a used assessment that is utilized by most scientists like biologist and ecologist to organize and classify organisms into sets of classifiable structures like trees, animals, birds, cats, dogs. These are broad descriptions that systematizes a whole family of species into a set category or a whole kingdom in a simple language such as plants or animals.
The temperature increases as you go deeper in the aquatic system.
The three primary parts of the plant's vascular system are the xylem, phloem and cambium. Hope It Helps!
This is what i know:
Flowers usually have more stamen because they need to ensure that there is enough pollen to fertilize the seeds from the
pistil.
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Answer: seven
Explanation: the valence electrons are the numi of electrons found in the outermost shell of an element. The group of an element indicates it's number of electrons in the outermost shell while the number of shells occupied by electrons indicates the period.
Thus since the element is in group seven it has seven valence electrons.
