Controls algae - Study guides, Class notes & Summaries

First cells would have been autonomous, membrane-bound units capable of self-replication requiring - ANSWER-nucleic acids RNA - ANSWER-• RNA has catalytic activity (ribozymes) .• First enzymes could have been RNA. • Earliest self-replicating molecules could have been RNA. • Proteins are better catalysts and DNA is more stable than RNA Earliest organisms: - ANSWER-• Probably primary heterotrophs .• Derived nutrients from the environment. • No need to synthesize own food aut...

MCAT STUDY GUIDE EXAM QUESTIONS WITH CORRECT ANSWERS. resolution - CORRECT ANSWER differentiate close objects magnification - CORRECT ANSWER increase size eyepiece magnification - CORRECT ANSWER 10x objective magnification - CORRECT ANSWER 4x,10x,20x, 100x Cell Theory - CORRECT ANSWER -all living things composed of cells -cell=basic functional unit of life -cells from other cells only -cells have DNA (parent-->daughter cells) total magnification - CORRECT ANSWER eyepiec...

GCSE Biology (AQA) Verified Answers microscope an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times. fine focus Knob that allows you to make fine focusing adjustments. (small knob) objective the lens at the bottom near the sample eyepiece A lens that magnifies the image formed by the objective. course focus used to make big changes in focus (large knob) magnification = size of the imag...

AFO (Aquatics Facilitator Operator) Glossary Exam Study Guide with Complete Solutions Latest Updated 2024/2025 Acid - Correct Answer A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - Correct Answer a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - Correct Answer A measure of the pH-buffering capacity of water Aluminum Sulfate - Correct Answer Alum; a flocculating agent f...

True or false: The high-dry lens will be optimal for observing multicellular fungi or algae. - False True or false: The oil immersion objective is necessary to determine the morphology of prokaryotes. - True What was the largest organism you observed? The smallest? - Fungi/mold; bacteria What three shapes of bacteria did you observe? - cocci, spiral, bacilli How does increased magnification increase the field of vision? - When magnification increases, it decreases the field of vision Why...

What are eukaryotic cells? - correct answer Cells that are more complex and have a nucleus (animal and plant cells) What are prokaryotic cells? - correct answer Cells that are smaller and simpler, and don't have a nucleus but still have genetic information (bacteria) What are eukaryotes? - correct answer Organisms made of eukaryotic cells What is a prokaryote? - correct answer A prokaryotic cell (it's a single celled organism) What is cytoplasm? - correct answer A liquid gel in whi...

AFO (Aquatics Facilitator Operator) Glossary Exam Questions And Answers Acid - ANS A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - ANS a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - ANS A measure of the pH-buffering capacity of water Aluminum Sulfate - ANS Alum; a flocculating agent frequently used as a supplement in rapid sand filters only! Ammonia (N...

Water Treatment Plant Operator Exam Questions With Answers Latest Updated 2024/2025 (Graded A+) What is used as a chemical coagulant? - Answer Alum The correct order of treatment in a surface water plant is... - Answer Coagulation, Flocculation, Sedimentation and Filtration In determining the proper dosage of alum, the most useful test is the____________ test. - Answer Jar If sludge is not continually removed from the sedimentation basin, its accumulation results in? - Answer Turbidity Th...

Acid - ANSWER A commonly use chemical compound dosed into swimming pools that releases hydrogen ions in water thereby lowering pH Algae - ANSWER a simple nuisance plant life that colonizes in water under favorable conditions Alkalinity - ANSWER A measure of the pH-buffering capacity of water Aluminum Sulfate - ANSWER Alum; a flocculating agent frequently used as a supplement in rapid sand filters only! Ammonia (NH3) - ANSWER A chemical compound of hydrogen and nitrogen that combines ...

Flowers - The reproductive structure in plants Double Fertilization - One sperm unites with an egg, forming a diploid zygote, and the other unites with polar nuclei, forming a triploid endosperm nucleus. Eudicotyledones (Eudicots) - -Two cotyledons -Flowering parts in four of fives or multiples of four or five -Pollen grain with three pores -woody or herbaceous -usually net venation -vascular bundles in a ring -taproot system Alteration of generations - The alteration of two or more di...