Answer:
The two types of lipoproteins are low density lipoprotein and high density lipoproteins
Explanation: As applying to low density lipoproteins (LDL), these are sometimes called the bad cholesterol because a high LDL level leads to a build up of cholesterol in the arteries. This condition narrows the arteries and increases the risk of heart attack, Strom and peripheral artery diseases.
High Density Lipoproteins (HDL), also known as the good cholesterol acts as a scavenger carrying LDL away from the arteries and back to the liver where the LDL is break down and passed from the body.
Answer:
A and B are the answers.
Explanation:
Believe me I took a test a while ago with this question
Answer:
Option (4).
Explanation:
Endomembrane system is may be defined as the sysytem that divides the cell into functional compartment or organelle. The organelle of endomembrane system are nuclear envelope, rough and smooth endoplasmic reticulum, golgi body, lysosomes, vesicle and plasma membrane.
Endomembrane system contains different membranes of cell organelle are suspended in the cytoplasm of the eukaryotic cell. Tge endomembrane system helps in synthesis, packaging and export of important proteins and molecules.
Thus, the correct answer is option (4).
Answer: Speciation
Speciation is biological process in which new species are formed from the existing species. This occurs when the members of the population gets separated from others by a geographical, behavioral or other barriers. Such separated organism develop traits with the course of evolution, which makes them reproductively isolated with the parent population. The speciation can be of two types:
1. Allopatric speciation: The separated population evolve into separate species due to a geographical isolation.
2. Sympatric speciation: The separated population evolve into separate species without any geographical isolation.
Answer:
Cell differentiation is how generic embryonic cells become specialized cells.
Explanation:
This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions
