Biology, 14.12.2020 17:30 cjade7660

A student conducts an experiment where a thin piece of material is placed into a beaker to separate it into two halves. The student adds a 10% sucrose solution with no dye to one side of the material. The student adds a 1% sucrose solution with purple dye to the other side of the material. The diagram shows how the solutions in the beaker change after 45 minutes. Which statement is supported by the changes in the solutions?
A. The material is permeable to water and dye but not to the sucrose.
B. The material is permeable to water but not to the dye and sucrose.
C. The material is permeable to dye and sucrose but not to the water.
D. The material is permeable to sucrose but not to the water and dye.

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Answer from: Quest

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student, including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as edutech.

Answer from: Quest

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

Answer from: Quest

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

Answer from: Quest

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion. lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection. sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin. goblet cells - secrete mucus for protection.

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A student conducts an experiment where a thin piece of material is placed into a beaker to separate...

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