Correct Answer: C. lacks the blood protein and fibrinogen

Correct Answer: C) Secretion of bile and bicarbonate for emulsification of fats.

Explanation

The question is asking about the role of the liver in digestion. The liver is an important organ located in the upper right side of the abdomen. It plays a vital role in the process of digestion. Option A states that the liver synthesizes lipase. Lipase is an enzyme that helps in the breakdown of fats. However, the synthesis of lipase does not happen in the liver. Therefore, option A is incorrect. Option B states that the liver secretes trypsin. Trypsin is an enzyme that helps in the breakdown of proteins. However, trypsin is not secreted by the liver. Therefore, option B is incorrect. Option C states that the liver secretes bile and bicarbonate, which help in the emulsification of fats. Emulsification is the process of breaking down large fat droplets into smaller ones, making it easier for enzymes to digest them. This statement is correct. The liver produces bile, which is stored in the gallbladder and released into the small intestine when fatty foods are consumed. Bile contains bile salts that emulsify fats, making it easier for lipase to break them down. Therefore, option C is the correct answer. Option D states that the liver stores bile for the hydrolysis of starch. However, the liver does not store bile for the hydrolysis of starch. Starch is broken down by enzymes such as amylase, which is produced by the salivary glands and pancreas. Therefore, option D is incorrect. In summary, the correct role of the liver in digestion is the secretion of bile and bicarbonate for the emulsification of fats, which is option C.

Correct Answer: B. iron

Correct Answer: D. Territorial defence encourages food scarcity in a habitat

Correct Answer: A. has no effect on the starch solution

Correct Answer: A. 28

Explanation

Haploid cells contain one of each numbered chromosome, for a chromosome number of n. Diploid cells contain two of each, so the number of chromosomes in a diploid cell is 2n, or twice the haploid number.

Correct Answer: B. starch

Correct Answer: D. Prophase I

Explanation

Crossing over occurs during Prophase I. During Prophase I, chromatin condenses and homologous chromosomes come together to form a tetrad. At this point, sometimes pieces of the chromatids within the chromosomes break off and exchange DNA. This process is known as crossing over. This cannot occur in Prophase II because there are no homologous chromosomes in this stage, and therefore there isn't any different DNA to exchange.

Correct Answer: C. wide pith

Correct Answer: D) 3-4-1-5-2

Explanation

This Biology question is asking about the order of the components involved in the movement of a reflex action. The components are the central nervous system, muscle, skin, sensory nerve, and motor nerve. The question wants to know which sequence indicates the correct path of these components. The correct sequence of these components involved in the movement of a reflex action is option D: 3-4-1-5-2. This means that the correct path starts with the skin, followed by the sensory nerve, then the central nervous system, the motor nerve, and finally the muscle. In a reflex action, the skin acts as a receptor, which detects the stimulus. The sensory nerve then transmits the information from the skin to the central nervous system, which is responsible for processing the information and making a decision. The motor nerve then carries the response from the central nervous system to the muscle, which is the effector that produces the response. It is important to note that reflex actions are rapid and automatic responses to a stimulus that do not require conscious thought. They are important for protecting the body from harm or injury. In summary, option D: 3-4-1-5-2 is the correct sequence of components involved in the movement of a reflex action.