Amoeba acquires it food by endocytosis, that is, a small region in the plasma membrane which ultimately forms a intra-cellular membrane-bound vescicle. It engulfs it food using its pseudopodia (temporary protrusion of the surface of the amoeboid cell used for feeding and movement) and forms a vacuole around it. When the food is already trapped inside, it releases a digestive enzyme to digest it. Intake of liquid particles is pinocytosis (cell drinking) while intake of solid particles is phagocytosis (cell eating).
Answer: D. Acid from abandoned mines
Explanation:
Point source pollution can be define as the pollution that can be caused by a pollutant whose source of origin is known. As the source of origin is known the path of the pollutant can be traced back to it's origin hence, the pollution can be controlled.
Among the options given, D. Acid from abandoned mines. is the correct option this is because of the fact that the source of origin of the pollutant is known that is abandoned mines.
Answer: Information stored in DNA must be translated into functional products.
Explanation: DNA is a short form of deoxyribonucleic acid. DNA is a type of nucleic acid. There are two types of nucleic acids: DNA and RNA (ribonucleic acid).
DNA is a double-stranded helical molecule that contains the complete information for the synthesis of a functional gene product. The functional gene product is usually a protein.
DNA is first copied into a messenger RNA (mRNA) in a process known as transcription. This process is catalyzed by the enzyme RNA polymerase. This process occurs in the nucleus.
The mRNA leaves the nucleus to the ribosome where it is used to produce a protein. This process is called translation and occurs in the ribosome. The protein is the functional product that expresses its function in the organism.
