Relative abundance - Study guides, Class notes & Summaries

A fish is excreting large volumes of water; we would describe it as ______________________ relative to its environment. - Answer-An osmoregulator that is hyperosmotic. Which of the following animals likely makes the most nitrogenous waste? A. Frugivorous Bat B. Insectivorous Frog C. Piscivorous Seal D. Granivorous Bird - Answer-C. Piscivorous Seal Which of the following statements about mammalian excretion if FALSE: A. Substances like solutes always diffuse across the nephron membrane, w...

Challenges faced by individuals occupying a saltmarsh correct answers -Submersion (less up the shore) -Exposure (more up the shore) -High salt content (made worse by increased exposure) -Lower salt content after heavy rain -Physical stress from waves and tides -Ecological competition -Smothering by dead plants and material brought in by tides -Pollution..heavy metals, organics, nutrients, Suggest 5 reasons why saltmarshes and mudflats are so important to the UK (Hudson, 2016) correct a...

what is a biological community? - Answer All of the populations of organisms living and interacting in a particular area commensalism - Answer interaction where one species benefits and the other is unaffected competition - Answer interaction where individuals use the same resources, lowering fitness for both -/- consumption - Answer interaction where one organism eats or absorbs nutrients from the other, +/- mutualism - Answer interaction where two species benefit +/+ three key t...

What is mass spectrometry? - ️️an accurate instrumental technique used to determine the relative isotopic mass and the relative abundance for each isotope. Relative atomic mass can be calculated from this What is the relative isotopic mass of an isotope? - ️️the mass of the isotope on a scale on which a carbon-12 atom has a mass of exactly 12 units. The mass spectrometer is the most useful instrument for the accurate determination of what? - ️️relative atomic masses (Ar) What is t...

Chem 234 Exam 1 Questions With 100% Correct Answers Allows us to determine the molecule mass and the molecular formula of a compound, as well as some of it's structural features - answerMass Spectrometry Tells us the kinds of functional groups a compound has - answerInfrared (IR) Spectroscopy Provides information about the carbon-hydrogen framework of an organic compound - answerNuclear magnetic resonance (NMR) spectroscopy A very small sample is placed in a mass spectrometer, where it i...

Health A state of complete physical, mental, and social well-being Preventable Injury and Death -control of underage and excess use of alcohol -elimination of public possession of firearms -elimination of all forms of tobacco -better nutrition and exercise -reduction in risky sexual behaviors -full access to immunizations Goals of Healthy People 2020 adolescent health, physical activity, nutrition and weight status, injury and violence protection, sleep health Bloodletting belief or practice ...

Very few atoms of the element tennessine (Ts) have ever been identified. The atomic number of tennessine is 117 Predict the number of outer shell electrons in an atom of tennessine. Give one reason for your answer. Use the periodic table. Tennessine was first identified by a small group of scientists in 2010. Suggest one reason why tennessine was not accepted as a new element by other scientists until 2015. The discovery of isotopes explained why some relative atomic masses are not wh...

what is a biological community? - Answer All of the populations of organisms living and interacting in a particular area commensalism - Answer interaction where one species benefits and the other is unaffected competition - Answer interaction where individuals use the same resources, lowering fitness for both -/- consumption - Answer interaction where one organism eats or absorbs nutrients from the other, +/- mutualism - Answer interaction where two species benefit +/+ three key t...

Mass spectrometry using lasers to ionise atoms into cations, then measure the abundance and mass using their mass-tocharge ratios Mass to charge ratio the mass of an ion divided by its charge (usually +1 in mass spectrometry) units: m/z relative atomic mass the average mass of an atom of an element relative to 1/12 of an atom of the isotope C-12 relative isotopic mass the relative mass an atom of an isotope relative to 1/12 of the mass of a C-12 atom relative molecular mass the relati...

Mosquito Control (7F) Questions and Answers Already Passed a female mosquito takes blood to: Produce eggs the 3 main body parts of an adult mosquito are: Head, Abdomen, Thorax mosquito larvae are typically found in: shallow and still or stagnant water the genus of mosquito having pulps roughly as long as proboscis is Anopheles mosquito larvae breathe through respiratory openings near the tip of the abdomen some mosquitoes lay their eggs on damp soil number of mosquito spe...