What is surrounded by a membrane? Organelles Surrounded by Membrane. vacuoles, endoplasmic reticulum, golgi apparatus, lysosomes, nucleus, mitochondria, chloroplasts. Which types of cells are surrounded by a membrane? Eukaryotic cells contain a membrane-bound nucleus and numerous membrane-enclosed organelles (e.g., mitochondria, lysosomes, Golgi apparatus) not found in prokaryotes. Animals, plants, fungi, and protists are all eukaryotes. […]
What carries a trait from one generation to another?
What carries a trait from one generation to another? Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information. What are the particular genes an individual carries? An individual’s genotype for that gene is the set of alleles it happens to possess. In a […]
Why is an RCCB better than a fuse?
Why is an RCCB better than a fuse? Circuit-breakers respond quicker than fuses. Circuit-breakers are more reliable. Circuit-breakers are more sensitive. Unlike fuses which only operate once and need to be replaced a circuit-breaker can be reset. What is the another name of RCCB? RCCB (Residual current circuit breaker) or RCD (Residual-current device) are aimed […]
Can house flies walk?
Can house flies walk? “Numerous insects, such as common houseflies, as well as certain amphibians and reptiles (tree frogs and geckos, for example), are able to walk on and cling to seemingly smooth surfaces–including glass doors and windows. How long can flies fly without rest? There is no absolute answer but house flies can easily […]
Which flasks are better glass or stainless steel?
Which flasks are better glass or stainless steel? Basically all Thermoses and vacuum insulated flasks were glass lined until 1966 when the first stainless steel vacuum insulated flask was created. Stainless steel is preferred over glass in most cases because it’s much less fragile, cheap to manufacture and doesn’t leech chemicals into hot drinks like […]
What continent is 15 degrees north latitude and 15 degrees east longitude?
What continent is 15 degrees north latitude and 15 degrees east longitude? It crosses the Saharan fringe (the Sahel) in Africa, three key peninsulars of Asia (between which parts of the Indian Ocean), the Pacific Ocean, an isthmus of Central America, the southern Caribbean and the Atlantic Ocean. Which of the following countries are crossed […]
In what 2 kinds of habitat can an amphibious creature live?
In what 2 kinds of habitat can an amphibious creature live? Amphibians are vertebrates (animals with backbones) which are able, when adult, to live both in water and on land. Which animal is an amphibious? Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, […]
What happens when Continental soldiers visit the tavern?
What happens when Continental soldiers visit the tavern? When they reach the tavern, it looks like the Continentals have left, so the brothers go inside. Happily, their dad is alive, even though he does have a bloody cut on his cheek. The second Sam sees his dad, he takes off running back the way he […]
What is a zoom microscope?
What is a zoom microscope? Zoom microscopes refer to either stereo zoom microscopes or to a macro zoom lens system. With a stereo microscope, light is reflected from the surface of a sample in order to obtain high-resolution, low magnification images. What is a compound microscope used for? Compound Microscopes Typically, a compound microscope is […]
Why are proteins found in all cells?
Why are proteins found in all cells? Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that can be combined to make a protein. These proteins bind and carry atoms and small molecules […]