Why does migration occur Study guides, Class notes & Summaries

NSG-300 Exam 2 Questions And Answers (Verified And Updated) What are 3 pressure related factors that contribute to pressure ulcer development? - answer1. Pressure Intensity 2. Pressure Duration 3. Tissue Tolerance How does pressure lead to tissue ischemia? - answerIf pressure applied over a capillary exceeds normal capillary pressure and the vessel is occluded for a prolonged time What occurs is tissue ischemia is left untreated? - answertissue death Does blanching occur in dark skinned...

McMaster Bio 1M03: Exam Questions and Answers A, Guide Why might Pasteur's experiment be inconclusive? The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? To ensure that results were not achieved by random chance What is the definition of a replicate? Unit that shares a common thing (4 mice in one cage = 1 replicate) What ...

What are Darwin's three conditions for natural selection? 1) Heritable characters 2) Characters show variation between individuals 3) Differential fitness (= survival, reproduction) between individuals What is the definition of evolution? genetic change over time in a population Is all evolution caused by natural selection? no Is natural selection the only consistent force leading to adaptations? yes What types of evidence can be gathered for evolution? Fossil...

McMaster BIO 1M03 PRACTICE TEST Questions and ANSWERS 2024/2025 (100% Correct) Which of he folloing aemen ih e pec o he ml i- egional hpohei and he ecen o of Af ica hpohei fo human origins is not accurate? A) Both hypotheses propose an African origin for modern humans. B) The multi-regional hypothesis proposes that modern populations of H. sapiens began diverging from one another over one million years ago. C) According to both hypotheses, Homo heidlebergensis and Homo erectus are separate ...

UCLA ANTHRO 1 FINAL EXAM QUESTIONS WITH ANSWERS ALL VERIFIED When was the major migration out of Africa? - ANS -60ka -modern humans replaced the Neanderthals and robust hominids across the world When did modern humans evolve? - ANS 200,000 years ago modern Homo sapien derived characteristics: - ANS -small, flat face with protruding chin -rounded skull -cranial capacity of at least 1,350cc -less robust postcranial skeleton -relatively long limbs and shorter trunks why w...

AK History - Quizzes 1 through 9 Already Passed Use your geographic schema to answer this question: How is it that some people on the Aleutian Islands speak Aleut, English, and Russian? The Aleutian Islands are a crossroads for countries that speak English and Russian. Which of the following was not listed in the objective as being affected by geography? 1) Culture 2) Internet 3) History 4) Tourism Internet Which theme includes the interaction of people, places, things, and information? 1) ...

Test Bank for Porth's Essentials of Pathophysiology 5th Edition by Tommie L Norris Test Bank for Porth's Essentials of Pathophysiology 5th edition by Tommie L Norris 1. Chapter 1 Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, most of the specific membrane functions are carried out by: A) Bound and transmembrane proteins B) Complex, long carbohydrate chains C) Surface antigens and hormone receptors D) A gating system of selective ion channels Feedback: Th...

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...

AQA A-level BIOLOGY 7402/1 Paper 1 Version: 1.0 Final *jun* IB/M/Jun23/E9 7402/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 TOTAL Wednesday 7 June 2023 Afternoon Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions...

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...