The diagram below represents the structure of the plasma membrane. How would the exchange of molecules between an organism and its environment be affected if the membrane were less permeable? Image depicts the plasma membrane, with several proteins embedded.
Fewer membrane proteins would be needed to carry out active transport of nutrients.
Molecules needed for growth would have more difficulty diffusing across the membrane.
Organisms would be more susceptible to harmful substances crossing the membrane.
The membrane would rearrange to form a single phospholipid layer to transport materials.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation: