Correct Answer: C. to maintain the composition of body fluids

Correct Answer: C) cycling of nutrients

Explanation

Soil micro-organisms are tiny living organisms that inhabit the soil. These micro-organisms are beneficial because they help in the cycling of nutrients. This means that they break down organic matter in the soil, such as dead plant material, animal waste, and other organic debris, into simpler compounds that plants can use as nutrients. This process is important because it helps to enrich the soil and make it more fertile. The other options listed in the question, such as photosynthesis, translocation, and respiration, are not functions of soil micro-organisms. Photosynthesis, for example, is a process that occurs in plants, while translocation refers to the movement of water and nutrients within plants. Respiration using soil air is also not a function of soil micro-organisms. In summary, soil micro-organisms are beneficial because they help in the cycling of nutrients, which makes the soil more fertile and helps plants to grow better. Therefore, the correct answer to the question is option C.

Correct Answer: A. storing water in large parenchyma cells

Correct Answer: B. cell wall and chloroplast

Correct Answer: D) osmosis

Explanation

This Biology question is talking about the movement of water across a semi-permeable membrane from a weaker solution to a stronger solution. This process is known as osmosis. Osmosis is a type of passive transport where molecules move from an area of high concentration to an area of low concentration.In this case, the water molecules move from an area of weaker concentration (the solution with less solutes) to an area of stronger concentration (the solution with more solutes) until both solu

Correct Answer: A) medulla

Explanation

The question is asking which part of the human brain controls the reflexes that regulate the rate of heartbeat and breathing. The options to choose from are medulla, cerebrum, cerebellum, pineal body, and olfactory lobe. The medulla is the correct answer. It is located in the brainstem and controls many autonomic functions such as heart rate, blood pressure, and breathing. The medulla also coordinates reflexes such as coughing, sneezing, and swallowing. The cerebrum is the largest part of the brain and is responsible for conscious thought, memory, and voluntary movement. It is not directly involved in controlling the rate of heartbeat and breathing. The cerebellum is responsible for coordinating movement, balance, and posture. It also plays a role in some types of learning. It is not directly involved in controlling the rate of heartbeat and breathing. The pineal body is a small endocrine gland that produces the hormone melatonin, which regulates sleep patterns. It is not directly involved in controlling the rate of heartbeat and breathing. The olfactory lobe is responsible for processing information related to smell. It is not directly involved in controlling the rate of heartbeat and breathing. In summary, the correct answer to the question is the medulla, which is responsible for controlling many autonomic functions including the regulation of heart rate and breathing.

Correct Answer: C. develop specialize structure

Correct Answer: C. ethanol

Correct Answer: C. variation

Correct Answer: D. increase during dry season