Is age a biological factor? Also known as physiological or functional age, biological age differs from chronological age because it takes into consideration a number of factors other than just the day you were born. The actual number comes down to different biological and physiological development factors. Some of these include: chronological age. How do […]
What was first animal on earth?
What was first animal on earth? comb jelly Can male chickens lay eggs? Because male chickens do not lay eggs and only those on breeding programmes are required to fertilise eggs, they are considered redundant to the egg-laying industries and are usually killed shortly after being sexed, which occurs just days after they are conceived […]
When would you request a contact approach?
When would you request a contact approach? A contact approach will only be issued if the aircraft is operating clear of clouds with at least 1-mile of flight visibility, with a reasonable expectation of continuing to the destination airport under those conditions. Which is true regarding the use of an instrument departure procedure? Which is […]
What are effects of temperature on human body?
What are effects of temperature on human body? The heart rate increases to pump more blood through outer body parts and skin so that excess heat is lost to the environment, and sweating occurs. These changes place additional demands on the body. Changes in blood flow and excessive sweating reduce a person’s ability to do […]
What two shafts does the clutch connect and disconnect?
What two shafts does the clutch connect and disconnect? The clutch connects and disconnect two rotating shafts (drive shafts or line shafts), one shaft is typically attached to an engine (the driving member) while the output shaft (the driven member) provides output power for work. What are the two most common pressure plate designs? The […]
What is the name of James Chadwick atomic model?
What is the name of James Chadwick atomic model? This atomic model is known as the quantum mechanical model of the atom. In 1932, James Chadwick bombarded beryllium atoms with alpha particles. An unknown radiation was produced. Chadwick interpreted this radiation as being composed of particles with a neutral electrical charge and the approximate mass […]
What is it important for organisms to respond to stimuli?
What is it important for organisms to respond to stimuli? Response to stimuli is an important characteristic of life. Anything that causes a living organism to react is called a Stimulus (plural is stimuli). Stimuli can be external or internal. It helps the organism to stay in balance. What are 2 internal factors that organisms […]
Is solution physically combined?
Is solution physically combined? A solution can be separated by a physical change, such as boiling away the solvent. Substances that are combined chemically can only be separated by a chemical change. Solutions then are combinations of substances that are not chemically combined. Is salt water chemically combined? Saltwater is a homogeneous mixture, or a […]
How the salt is formed?
How the salt is formed? The salt comes from weathering and volcanic activity. The ocean formed very early on in Earth history, as soon as water comes into contact with rock then weathering processes start – these leach (dissolve) the soluble elements preferentially out of the rock (sodium, calcium, magnesium, potassium etc). How do you […]
How does hydrosphere support life?
How does hydrosphere support life? The major importance of the hydrosphere is that water sustains various life forms and plays an important role in ecosystems and regulating the atmosphere. Hydrosphere covers all water present on the Earth’s surface. What will happen if there was no hydrosphere on earth? Answer: we know weather happens in the […]