Correct Answer: D. duodenum

Correct Answer: C) Contractile vacuole

Explanation

Paramecium is a unicellular organism that lives in freshwater. This organism has a structure called the contractile vacuole that is used for osmoregulation. Osmoregulation is the process of regulating the concentration of water and ions in the cell. The contractile vacuole is a specialized organelle that collects excess water from the cytoplasm and expels it out of the cell. This helps to maintain the proper balance of water and ions in the cell. In the given options, option C, which is the contractile vacuole, is the correct answer to the question. Cilia are hair-like structures that are used for movement, the nucleus is the control center of the cell, the oral groove is used for feeding, and the pellicle is a protective covering. It is important to note that osmoregulation is a vital process for cells to maintain their shape and function properly. If the concentration of water and ions in the cell is not regulated, it can lead to cell damage and death.

Correct Answer: B. gametophyte

Correct Answer: C) Carbon dioxide produced in the tissues is removed by the process of osmosis

Explanation

Respiration is the process by which organisms convert food into energy that can be used for various life processes. It involves the exchange of gases, primarily oxygen and carbon dioxide. This Biology question asks which of the following statements is not correct about respiration. Option A states that gaseous exchange occurs by diffusion. This is a correct statement because during respiration, gases are exchanged between the environment and the organism's cells by diffusion, which is the movement of molecules from an area of high concentration to an area of low concentration. Option B states that oxygen combines with hemoglobin in the respiratory surface. This statement is also correct. Hemoglobin is a protein found in red blood cells that binds to oxygen and helps transport it throughout the body. Option C states that carbon dioxide produced in the tissues is removed by the process of osmosis. This statement is incorrect, and it is the answer to the question. Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration through a semi-permeable membrane. Carbon dioxide is not a molecule of water, and therefore, it cannot be removed from tissues by osmosis. Instead, carbon dioxide is transported in the blood to the lungs, where it is removed from the body through breathing. Option D states that there are no special organs of respiration in plants. This statement is also correct. Unlike animals, plants do not have specialized organs for respiration, but they have stomata, which are tiny pores found on leaves and stems that allow for gas exchange. In summary, the correct answer to this Biology question is Option C, which states that carbon dioxide produced in the tissues is removed by the process of osmosis. This is an incorrect statement because carbon dioxide is not removed from tissues by osmosis, but it is transported in the blood to the lungs for removal through breathing.

Correct Answer: D. eye lens becomes fat

Correct Answer: B. aggregate fruit

Explanation

An aggregate fruit is a fruit that develops from the merger of several ovaries that were separated in a single flower.

Correct Answer: B. Starch

Correct Answer: C. Pepsin acts on proteins to give peptide

Correct Answer: D. Muscle

Correct Answer: D. even distribution of facilities in both regions