32.2.2 Segmentation allowed for redundant systems and improved locomotion Hox genes cause segmentation development 2 advantage of Hox genes Highly segmented animals‚ usually have nearly complete set of organs in theirs each segment of body. This result to less damage in their body‚ since other segment duplicate the damage segment functions Locomotion is more efficient‚ since partitions isolate the segment can contract and expand autonomously. 32.3. The Classification of Animals Animals divided
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Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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Planning Introduction Stomata are pores on the bottom of leaves of vascular plants. The function of stomata is to allow gaseous exchange (transpiration) between the plant and the external environment (see diagrams below). This process is carried out by the plant‚ which controls the opening and closing of stomata via the guard cells. The more stomata a leaf contains the greater the rate of gas exchange and the less water it will be able to accumulate. Stomatal pores are formed between
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B io Factsheet September 2000 Number 76 The Eukaryotic cell cycle and Mitosis This Factsheet covers the relevant AS syllabus content of the major examining boards. By studying this factsheet the candidate will gain a knowledge and understanding of: • the different phases of the eukaryotic cell cycle (a eukaryotic cell has membrane bound organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different
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Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants. According to their habitats animals are divided into the following types Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams
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AP UNITED STATES GOVERNMENT AND POLITICS SYLLABUS: C (American Government: Continuity and Change.) INTRODUCTION: Advanced Placement (AP) curriculum is designed to give students an analytical perspective on government and politics in the United States. Students will study both general concepts used to interpret U.S. politics and examine specific examples. The AP Government course requires students to learn facts and concepts and understand typical political processes. The course will require
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and Statistics 04-02-2014 Chapter 2 Picking a study topic Generalize Social pattern Aggregates Empirically observable (regular senses) 1. Conducting a review of past studies A literature review search plan 2. Focusing on a research question Inductive/deductive 3. The research proposal Which type of research path? What do you examine? Variable (independent/dependent/intervening) What do you examine? Hypothesis‚ null hypothesis‚ alternative hypothesis What type of explanation
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SPM Biology – Answering Techniques in Paper 3 SPM Biology candidates typically commit the mistake of thinking that the length of their answered essay or structured questions equates to marks deserve‚ under the formula‚ Length of Structure Answer/Essay = Marks. This is wrong and Berry Berry Easy wishes to clear the air regarding this issue. It is never about how long you write but more about how accurate you write. So for Berry Readers who can write long answers but never seemed to score well‚
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Shows that there are still some loyal colonists. E) (Year before Revolution) the colonies are taking up arms because of England‚ and no matter what they will defend their liberties—they’d rather die as free men than live like slaves (hyyyypocriiiites). Shows unity. F) America was under British law for years‚ yet allowed to go their own way (to a point). The colonies became spoiled little children and rebelled against the parent (England). Loyal colonists
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13.1 Home Work 1. a. There are several differences between RNA and DNA is that are key. DNA has deoxyribose sugar while RNA has ribose sugar. Secondly b. RNA is generally single stranded and not double stranded. Lastly RNA contains uracil in place of thymine. c. The three types of RNA are messenger RNA‚ transfer RNA‚ and ribosomal RNA. Messenger RNA is the “mirror image” of the DNA that encodes the amino acid sequence for the protein specified by the gene. The Transfer RNA transfers the amino
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