Answers created by Jess the bee

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• Thoughts on the recent announcement made about the future of the Socratic website? Share them here!
  
• What are the ethical issues with the following? : (a) GM foods (b) Animal cloning
  
• Is a conifer a seedless vascular plant?
  
• A woman has only got four daughters but not son. Dos it man that husband do not produce chromosome bearing sperm?
  
• While working in the lab, a student was busy watching the slide under the microscope. After sometime, he realized that his answer sheet was wet with red (safranin) color. He saw that the watch glass containing safranin solution was empty. Why?
  
• What characteristic makes a cell membrane selectively permeable?
  
• Chemical bond that provides stability to complex carbohydrate molecule ? A: carbon-hydrogen bond B: carbon-oxygen bond C: carbon-nitrogen bond
  
• What is the different between apoptosis & necrosis?
  
• What does asexual reproduction of an organism normally result in?
  
• How do ferns differ from gymnosperms?
  
• What are the most basic building blocks of all organisms?
  
• What is a hot, dry biome called?
  
• Why are frogs commonly used in laboratory dissections?
  
• Why classification of living things are needed?
  
• How do beta lactams kill bacteria?
  
• Do harmonies affect one or two organs or do they have influence all over the body?
  
• Rapid reproduction is an advantage of which process?
  
• What is the endosperm?
  
• In plants, what is the stroma?
  
• How do cells store energy and release energy using ATP?
  
• What is the shortest time period over which evolution has been observed? Is evolution something that always takes many many years or has it been observed over short time periods in fast-breeding animals?
  
• What is meant by prokaryotes ?
  
• How do proteins contribute to the functions of the cell membrane?
  
• What are the four bases of DNA?
  
• What is the reasons why people are throwing wastes in the rivers and huge water bodies?
  
• What do HOX genes determine?
  
• What structure do angiosperms have and gymnosperms lack?
  
• Why is it hard to see the plasma membrane in plant cells?
  
• How does a virus harm a cell?
  
• What are some positives and negatives about the Nature Conservancy?
  
• Can we call HIV onkovirus?
  
• Why is crossing over an important source of genetic variation?
  
• What are the functions and properties of a ligand protein receptor?
  
• How is surface area to volume ratio related to cell size?
  
• Why are gradients important in diffusion and osmosis?
  
• What do plants possess which the animals lack in??
  
• How do u identify the midrib of a leaf having parallel venation ?
  
• What is the biology ?
  
• How could gel electrophoresis be applied to the identification of a gene mutation?
  
• When a house's drainpipes are backed up from tree roots, homeowners can blame which plant characteristic?
  
• What role does calcium play in skeletal muscle contraction?
  
• Are modern birds reptiles?
  
• What is the result of meiosis?
  
• What are the characteristics of vertebrates not found in cephalochordates?
  
• Are cytoskeleton filaments/rods a type of protein?
  
• Explain two problems faced by land plants during the transition from an aquatic environment to land environment?
  
• What are microfilaments?
  
• What is produced during the light dependent reactions and used during the light independent reactions of photosynthesis?
  
• Why is the cell theory still accepted today?
  
• Reason why cells are being replaced?
  
• Explain what is incomplete dominance?
  
• Why is a food web a more realistic representation of a community as compared to a food chain?
  
• How are non vascular plants, gymnosperms, and angiosperms all alike and different ?
  
• How does the cell membrane help maintain homeostasis?
  
• Where does a plant get the carbon dioxide that it needs for the dark reaction of photosynthesis?
  
• What does it mean by compartmentalisation in a chloroplast?
  
• In the 1600s, which scientist discovered microbes in pond water by using a microscope?
  
• What is western blotting used for?
  
• How does descent with modification relate to evolution?
  
• Which process of angiosperm reproduction would most likely end if a plant were moved into a room without any wind or insects?
  
• Why would being an angiosperm be an adaptation on land?
  
• What are 3 biotic and abiotic factors for gray wolves?
  
• What is parallel evolution?
  
• How do phylogenetic trees work?
  
• How does cell cycle regulation relate to cancer?
  
• Why can DNA profiling be bad?
  
• What levels of organization are missing in sponges?
  
• What are common characteristics to both to bryophytes and to seedless vascular plants?
  
• Why does cross-pollination produce more genetic variation than n the offspring that self-pollination produces?
  
• A recent study of the genetic code has determined that the mRNA codons UCU, UCC, UCA, and UCG all code for the amino acid serine. What does this research finding suggest?
  
• When ATP phosphorylates a molecule (gives it a P) to accomplish cellular work, what does ATP become?
  
• What does the heart muscle cell do?
  
• Why does lactic acid fermentation "kick in" during a sprint race?
  
• Predators are prudent In nature .justify the statement?
  
• What are the 2 outer layers of bacteria?
  
• How is archaea similar to eukarya?
  
• What could be the possible result of founder effect on genetic variation?
  
• What is the plasma membrane and everything contained within it known as?
  
• How do nature preserves and animal sanctuaries help protect biodiversity?
  
• What information does a punett square provide?
  
• How is endosymbiosis related to eukaryotic evolution?
  
• How do plants reduce the amount of water lost through transpiration?
  
• What does a plant use as food during winter months?
  
• Blood type is considered to be class evidence. Although it may not specifically identify the suspect, explain how it still could be useful in helping to investigate a crime?
  
• What does a cell need to live?
  
• What are steps involved in exocytosis?
  
• What is the difference/relationship between lipids and phospholipids or is thus just a really stupid question and are they the same thing??
  
• How do reproductive barriers relate to the biological species concept?
  
• What are the negative effects of global warming on climate, animals, and on plants?
  
• Another possible way to classify organisms would be to separate them into unicellular and multicellular organisms. Why is this not a useful classification system?
  
• Why is compartmentalization in eukaryotic cells important?
  
• How is the cell cycle regulated?
  
• Give the description of microscope ?
  
• Lysosomes and lytic vacuoles do what?
  
• Describe 2 ways that a birds body is suitable for flight ?
  
• Does biomagnification affect humans?