BIOLOGY 115 (BIOLOGY 115)

EDEXCEL A LEVEL BIOLOGY QUESTION PAPER 2 (SALTERS NUFFIELD) 16th JUNE 2023. • Answer all questions. • Use black ink or ball-point pen. • The total mark for this paper is 100. Advice • Try to answer every question. Instructions Fill in the boxes at the top of this page with your name, centre number and candidate number. Show your working in any calculation questions and include units in your answer where appropriate. Answer the questions in the spaces provided – there may ...

Define Evolution A Evolution is the change in frequency of a population’s inherited traits over subsequent generations. Evolution only occurs within populations; individual organisms do not change genetically over time to adjust to their environment. 2 Q What is the difference between microevolution and macroevolution? A Microevolution relates to evolutionary changes that occur within a single population. Its scope is fairly small, since it only deals with one species at a time. Macroe...

SOPHIA HUMAN BIOLOGY UNIT 5 MILESTONE 5

Sophia Human Biology Milestone 3 new practice questions and answers docs solved and approved docs (all correct) 2021 1 Which of these is TRUE of a neuron at resting potential? The neuron has more positive charges inside than outside. The neuron has more potassium ions inside than outside. Sodium-potassium pumps transport potassium ions out of the neuron. Sodium-potassium pumps transport sodium ions into the neuron. CONCEPT Membrane Potential and Action Potential ...