Answer:
The cell requires a barrier between itself and its environment. The cell requires the ability to digest and eliminate enzymes. The cell requires a means to store starches and glucose
Explanation:
The answer is letter d. it has only 2 electrons in its first shell and 4 in the second shell. Basing from the electronic configuration of the carbon atom, the "s" orbital of carbon atom is completely filled leaving now the "p" orbitals partially filled. Thus in this case, carbon atom has four (4) valence electrons.
When an atom transfers/ gains a valence electron, it gains either a positive or negative charge. in the Proces, becoming an ion. because of the negative/positive charge the two ions are now attracted to each other.
The location where a crime occur is called a crime scene. There are two types of crime scene, primary and secondary crime scenes. The primary crime scene refers to the place where the crime actually takes place. The secondary crime scene is to some extent related to the crime but it is not the original place of occurrence of the crime.
In the question given above, the primary crime scene is the lockers' room, where the thief took the car's key from. Information about the identity of the thief, such as finger prints can be obtained at the primary crime scene.
Protection, sensory perception, storage, absorption, sunscreen, dilation, and constriction