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Study with Quizlet and memorize flashcards containing terms like Who discovered cells?, What are the three parts of the cell theory?, Why are most cells small? and more.
Study with Quizlet and memorize flashcards containing terms like All cells are composed molecules and organelles, surface area to volume ratio of the cell, The cell must come from a multicellular eukaryote. and more.
uptake of a solid particle into a cell by engulfing the particle; see endocytosis. exocytosis. release of substances out a cell by the fusion of a vesicle with the membrane. Study with Quizlet and memorize flashcards containing terms like cell theory, cytoplasm, organelle and more.
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(i) Explain why bats and birds, despite not being closely related, have both evolved wings. [3] (ii) Suggest why the vast majority of bird species have not evolved the ability to echolocate.
Two types of flight feathers are found on the wings, primary feathers and secondary feathers (Figure 29.32). Primary feathers are located at the tip of the wing and provide thrust as the bird moves its wings downward, using the pectoralis major muscles.
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