1. Embryology
2. Comparative Anatomy
3. Molecular Biology
4. Developmental Biology
IM 90% sure that these are the right answers
Answer:
Soil plays an important role in many ecosystems
Explanation:
Answer:
It corresponds to a leaf tissue.
Explanation:
The composition of the leaf tissue, which absorbs sunlight, is observed in the process of photosynthesis. The epidermis, parenchyma, stoma, among other structures are observed.
<span>continue to divide even when they are tightly packed together.
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Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
