What is the main function of the circulatory system in multicellular animals? Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes. Sponges are the simplest animals, yet even they have a transport system. What is the circulatory system in animals? The circulatory […]
What does a confidence interval tell you?
What does a confidence interval tell you? What does a confidence interval tell you? he confidence interval tells you more than just the possible range around the estimate. It also tells you about how stable the estimate is. A stable estimate is one that would be close to the same value if the survey were […]
Will the fossil record ever be complete?
Will the fossil record ever be complete? The fossil record certainly has gaps, mostly because the conditions required to create fossils have been rare ever since life began on Earth. A very small percentage of animals that have lived and died ever became fossils. Thus, many pieces of the puzzle are missing; some will never […]
How do I calculate my work hours in a year?
Are the top and front views aligned vertically or horizontally?
Are the top and front views aligned vertically or horizontally? The top and front views are aligned vertically and share the same width dimension. The front and right side views are aligned horizontally and share the same height dimension. What is the projection of a line if it is perpendicular to the plane of projection? […]
What is L in Nusselt number?
What is L in Nusselt number? It is defined as. where α is convective heat transfer coefficient, L is representative dimension (e.g., diameter for pipes), and λ is the thermal conductivity of the fluid. Nusselt number is a measure of the ratio between heat transfer by convection (α) and heat transfer by conduction alone (λ/L). […]
Do you need to lift heavy for hypertrophy?
Do you need to lift heavy for hypertrophy? The traditional method for building muscle mass, for both men and women alike, is to lift heavier weights and increase the amount of weight over time. If they aren’t under tension long enough, they won’t be able to promote hypertrophy (muscle growth) as effectively. What are 5 […]
Should you throw flour on a grease fire?
Should you throw flour on a grease fire? Do NOT use flour on a grease fire. While sometimes baking soda can extinguish a small grease fire (though not if the fire is too overwhelming), flour cannot and should not be used. Due to chemical risk of contaminating your kitchen, putting out a grease fire with […]
What is a female mosquito called?
What is a female mosquito called? ectoparasite How can you tell a male mosquito from a female? Fun facts! Males are smaller than females. Compared to males, females have a more needle-like proboscis, which they use for biting. Males have bushy, hairy antennae, while the antennae of females are a lot less hairy. Do male […]
Is carbon a tetrahedral?
Is carbon a tetrahedral? Tetrahedral carbon: A carbon atom with four attachments, and bond angles of approximately 109.5o. The overall shape is that of a tetrahedron (i.e., a pyramid with all faces being equilateral triangles, or nearly so). The carbon atoms uses sp3 orbitals to achieve this geometry. All bond angles approximately 109.5o. Is carbon […]