Answer:
The correct choice is ''ion electrochemical gradients''.
Diffusion of ions across membranes through specific ion channels is driven by <u>ion electrochemical gradients</u>.
Explanation:
An electrochemical gradient can be considered as that electrical (electrostatic pressure) and chemical (diffusion) force that determine the movement of molecules and ions across the membrane. This electrochemical gradient, in addition to causing movement of substances through cell membranes, is also a type of potential energy available for the performance of different cellular activities, potential energy called membrane potential.
They need to cope with changing seasons and be able to withstand cold winters and hot summers
Answer:
Fossil fuels are all nonrenewable. But not all nonrenewable are fossil fuels.
Explanation:
But not all nonrenewable are fossil fuels. Crude oil, natural gas, and coal are all considered fossil fuels, but uranium is not. Rather, it is a heavy metal that is extracted as a solid and then converted by nuclear power plants into a fuel source.
1. A, C, G, T
2. A, C, G, U
3. Transcription
4. Translation
5. Cytoplasm
6. Nucleus
7. Ribosome in the cytoplasm or attached to ER
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Answer:
The genotype could be BB or Bb
Explanation:
The genotype could be Bb which means it has heterozygous alleles.
The B which is allele for dark brown fur is dorminant and b for light brown is recessive. In this case, the dorminant allele masked the effect of the recessive allele b which make the dorminant allele B to be expressed phenotypically.
