What are the two main functions of the cell membrane? The cell membrane, therefore, has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products. […]
How do you know what type of function it is?
How do you know what type of function it is? One method for identifying functions is to look at the difference or the ratio of different values of the dependent variable. For example, if the difference between values of the dependent variable is the same each time we change the independent variable by the same […]
What is the coldest city in Brazil?
What is the coldest city in Brazil? Urupema Does Brazil have 4 seasons? As Brazil lies in the Southern Hemisphere, its seasons are the exact opposite of what Northern Hemisphere residents are used to: summer is December through March and winter June through September. Within the country the climate varies considerably from region to region. […]
What is a good Q factor?
Why was tryptophan banned?
Why was tryptophan banned? What are the risks of taking L-tryptophan? L-tryptophan has been linked to a dangerous, even deadly condition called eosinophilia-myalgia syndrome (EMS). The FDA recalled tryptophan supplements in 1989 after up to ten thousand people who took them became sick. Is tryptophan still banned? In February of 2001, the FDA loosened it […]
Why is the White-eyed characteristic more common in males?
Why is the White-eyed characteristic more common in males? Because the white-eye allele is recessive, a female will have white eyes only if she has the white-eye allele on both her X chromosomes. However, in males, a single copy of the white-eye allele on the lone X chromosome will lead to white eyes because no […]
Is baking bread an exothermic reaction?
Is baking bread an exothermic reaction? In addition to smelling delicious, baking bread is an endothermic example. The flour, yeast, and other ingredients used in creating the dough are heated. They absorb the heat making chemical reactions happen. Is Melting ice exothermic or endothermic? As a result, the temperature of the ice rises and it […]
Which subatomic particle has a positive charge and negative charge?
Which subatomic particle has a positive charge and negative charge? The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge. How does […]
Which mixture can be separated?
Which mixture can be separated? A mixture is a material containing two or more elements or compounds that are in close contact and are mixed in any proportion. For example, air, sea water, crude oil, etc. The constituents of a mixture can be separated by physical means like filtration, evaporation, sublimation and magnetic separation. What […]
What are the disadvantages of living on a floodplain?
What are the disadvantages of living on a floodplain? Disadvantages No buildings or roads will be built in a floodplain area, so it restricts development. High risk of flooding. Why is it bad to build on a floodplain? Building on the floodplains makes the habitats for many creatures rare and unnatural as their natural habitat […]