Archasea Bacteria Luca Last Universal Common Ancestor Lucas Characheristics deduce form shared characteristics of A + B today: DNA (cf. RNA) genome No nuclear membrane or intracellular organelles Electron Transport Chains (ETC)- ATP (energy) Proteins Same genetic code Prokaryontes 2.75 bya‚ are responsible for a dramatic increase in atmospheric O2. Cyanobacteria = photosynthesizing bacteria + related prokaryontes Evidence of O2 increase: Rust in rock
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Principles of philosophy are clear‚ obvious‚ and irreformable. Feyerabend’s exploration of method speaks directly to this point‚ but it also deals with the barriers that cultures raise against foreign critical ideas to protect their central integrity. Instinct for example‚ covers a plentitude of ignorance. Only when we look outside Western culture‚ or when someone outside looks in‚ do we discover the glaring inconsistencies and begin to measure the actual changes that science and technology have
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Measure &itsIDlife. Week 1 Day 3 Seedlin g Seed Sapling Snag Mature Oak Like all living things trees have a life cycle: Birth Growth Aging Death As trees grow‚ their physical form changes as does their role in the forest ecosystem Which came first - the tree‚ or the seed? Seeds come in a variety of shapes‚ weights‚ colors‚ and sizes‚ depending on the species. Seeds develop from male and female parts of the trees producing fruits. Some seeds are in a protective nut like an acorn
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water so that sperm can swim between the male and female sex organs; most other plants do not. Vascular plants have elaborate water- and food conducting strands of cells‚ cuticles‚ and stomata; many of these plants are much larger that any bryophyte. Seeds evolved between the vascular plants and provided a means to protect young individuals. Flowers‚ which are the most obvious characteristic of angiosperms‚ guide the activities of insects and other pollinators so that pollen is dispersed rapidly and
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Project Made By: Vijay Soren VijaySingh Kaintura Vipin Mishra Vikram Shenoy Introduction: Scotch whisky is whisky made in Scotland. In Britain‚ the term whisky is usually taken to mean Scotch unless otherwise specified. In other English-speaking countries‚ it is often referred to as "Scotch". ------------------------------------------------- Factmeter: ------------------------------------------------- Excellent whiskies are made by similar methods in Japan‚ but they cannot be called
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process with plants; one sperm cell combines with the egg cell and the other becomes the seed. In the process of fertilization with animals only one sperm fertilizes the female egg and it occurs in the fallopian tube of the female reproductive tract. Life for a new plant begins when it germinates from the seed. Part of the maturation occurs while in the embryonic stage‚ and the remainder occurs after birth and germination. Life for an animal begins when exiting the mother’s womb or from an egg. In both
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Quadrilateral just means "four sides" (quad means four‚ lateral means side). Any four-sided shape is a Quadrilateral. But the sides have to be straight‚ and it has to be2-dimensional. A quadrilateral is defined as any two-dimensional‚ four-sided shape that has four vertices with interior angles that equal 360 degrees. There are several quadrilateral variations that include parallelograms‚ rectangles‚ rhombuses‚ squares‚ trapezoids‚ and kites. Quadrilaterals * Parallelogram – A parallelogram
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newly mated queen. She then scrambles onto the tree‚ finds the perfect thorn‚ and gnaws away at it until she has an opening into which she crawls and lays her eggs. As the colony grows‚ the ants help the tree reproduce by taking its seeds to favorable germination sites
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AbstractDifferent pH level may affect the growth and development of the plants. Certain key words include: pH level‚ germination‚ acidity‚ osmosis and diffusion. This experiment examines the effects of different pH level of vinegar on the growth of bean plants. Materials used in this experiment consist of: water (pH 6)‚ vinegar with the pH level of 3‚ 4 and 5 (each one were made before experiment)‚ beans‚ soil‚ and pots. Eight bean plants were planted‚ two were watered with pH 6 and the other ones
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Students are able to get the financial benefits from jobs. According to Katherine Cress‚ the author of “Why Not Ask the Students? Urban Teenagers Make the Case for Working‚” students can use their income to take the pressure off their families. Teenagers often ask parents for money‚ but high school students are young adults who should
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