im pretty sure its just the first and second options
hope this helps :D
In prophase, DNA begins to cluster. In metaphase, two identical, condensed DNA strands line themselves up in the middle of the cell. After metaphase, there are: Anaphase, Telophase, and Cytokinesis. This process excluding or including Cytokinesis is called mitosis.
In the DNA replication for a cell baby, meiosis occurs.
This process is called autophagy.
Autophagy is an intracellular process of degradation, which includes the destruction of cytoplasmic components in the lysosomes. These components are considered unnecessary or dysfunctional and that is why they are recycled by the cell.
Autophagy has four sequential steps which are the sequestration, the transport of the components to the lysosome, the degradation, and the recycling and utilization of the degradation products.
Autophagy is considered as an adaptive response to stress by ensuring the survival of the cell and the tissue.
In 1895, Ernest Overton proposed that cell membranes were made of lipids
According to the lipid bilayer theory, which Gorter and Grendel put forth in 1925, the cell membrane bilayer structure can be described using crystallographic research and observations of soap bubbles.
<h3>What is Cell membrane ?</h3>
All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.
- A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
- Biological membranes serve three main purposes. First, they prevent harmful substances from entering the cell. Second, they have receptors and channels that let certain molecules, like ions, nutrients, wastes, and metabolic products,
- Third, they divide metabolic processes that are necessary but incompatible that take place within organelles.
Learn more about Cell membrane here:
brainly.com/question/1768729
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Answer:
D
Explanation:
Example the action of teeth on food in the mouth increase surface area for salivary amylase to start digestion of starch
