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Elden [556K]
3 years ago
12

Which feature of a cell membrane determines whether molecules can cross the membrane?

Biology
1 answer:
aleksklad [387]3 years ago
3 0

Answer:

my guess is phospholipids

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At the time Hutton proposed his ideas about the age of rocks, how old was Earth believed to be by most people in Scotland?
creativ13 [48]

Answer:

In the late eighteenth century, when Hutton was carefully examining the rocks, it was generally believed that Earth had come into creation only around six thousand years earlier (on October 22, 4004 B.C.

3 0
3 years ago
A toxicity of folate can disguise a deficiency of which nutrient, resulting in nerve damage?
Ket [755]

Large dose of folate increase the symptom of vitamin B12 deficiency . the vitamin B12 deficiency can lead to permanent damage of the spinal cord nerves and brain.

It can cause severe birth defects which is called neural tube defects. this defects include spinal, pifida . folate deficiency can also increase your chance of placental abrupt ion is a condition in which placental separate from uterus.

High dose of folate typically be remedied by taking supplement of both folic acid and vitamin B12. vitamin B12 works closely with vitamin B9 also called folic and folate acid which is help to make red blood cells and iron work better in our body.

To learn more about folate here

brainly.com/question/16040966

#SPJ4

5 0
2 years ago
A survey reveals that 25 percent of a population of 1,000 individuals have attached earlobes (are homozygous recessive for the t
Mumz [18]

Answer:

d. pxp +2pq

Explanation:

The formula for genotype frequency for a population in Hardy-Weinburg equilibrium is as under:

                           p² + 2pq + q² = 1

where, p = dominant allele

           q = recessive allele

Here,

 p² represents frequency of homozygous dominant genotype

2pq represents frequency of heterozygous genotype

q² represents frequency of homozygous recessive genotype

Also, although the genotypes p² & 2pq are different from each other yet phenotypically they both will collectively produce dominant trait i.e. free ear lobes not attached earlobes. So the term "p² + 2pq or pxp + 2pq" represents the frequency of the individuals who show the dominant phenotype in this particular population. Dominant phenotype will comprise 75% of the population.

4 0
3 years ago
Earth’s inner core is a. a dense ball of solid metal. b. a layer of molten metal. c. a layer of hot rock. d. a layer of rock tha
azamat
The answer is A: A Dense Ball Of Solid Metal. No One Can Get to there though. Hope that helps :)
    ~Spades15
4 0
3 years ago
Read 2 more answers
The largest of the cranial nerves is what
Genrish500 [490]

It is the trigeminal. check my spelling though.

4 0
4 years ago
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