Voltage-gated (voltage-dependent) channels and antiport carriers are both types of transporters. Thus, option (d) is correct.
What is Voltage-gated?
The term voltage-gated refers to the allowing or blocking of passage through a cell membrane in response to an electrical input.
Voltage-gated ion channels are membrane proteins that allow certain inorganic ions to cross cell membranes. An antiporter is a membrane protein that simultaneously transports two molecules in opposite directions.
As a result, both are the type of the transporters. Therefore, option (d) is correct.
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Your question is incomplete, but most probably the full question was
A) receptors.
B) structural proteins.
C) enzymes.
D) transporters.
Answer:
correct answer is 33 feet
Explanation:
given data
A section = 1 mile by 1 mile
one acre contains = 43,560 sq ft
solution
as section is 1 mile by 1 mile
so one edge of a section will be
one edge of a section = 1 mile = 5280 feet long
here one acre contains = 43,560 sq ft
so 4 acres = (43,560 sq ft × 4)
4 acres = 174,240 sq. ft
contains a total of 174,240 sq. ft.
so wide = 
wide = 33 feet
Henry Seward expands the antislavery argument beyond the moral appeal of the abolitionist by talking about or addressing the country as a whole and not just about the slaves. He doesn't use the term "slaves" to refer it to them but rather, he calls them as "the laborers", so that, those who are non abolitionist would imagine slaves as laborers or working men. He also once said, as quoted, “the united states must and will, sooner or later, become either
entirely a slaveholding nation, or entirely a free labor nation." Hope this answer helps.
