Answer:
The correct answers are A and D
Explanation:
The folds in the stomach lining are called rugae. On these rugae, you will find a thin line of mucous which helps protect the stomach lining. The innermost layer is called Simple Columnar Epithelium.
Yes it will help you with c and d
Answer:
Here's what I get
Explanation:
If the orbital is 5d, n = 5 and l=2.
mₗ = -l, -l + 1, -l + 2, …., l
(mₛ is a quantum number for electrons)
Thus, we can have the following combinations.

That makes a total of five 5d orbitals.
The pictures below show what two of them look like.
Answer:
Es cuando los restos orgánicos son cubiertos por el suelo y con el tiempo se degradan
dejando vasios en la roca que los confinan natural mente