1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergeinik [125]
3 years ago
12

Why is selectively permeable better than totally permeable or totally impermeable?

Biology
1 answer:
Vlad [161]3 years ago
3 0
Because it allows only certain substances to permeate. If it was totally permeable that would be good enough to having no barrier as it would let everything though. Totally impermeable means that nothing would get through.
You might be interested in
An 8 year old girl is brought to your office by her mother, who tells you that the girl has been complaining of a sore throat fo
valina [46]

Answer:

she has Strep throat or something like that

Explanation:

the Severity of strep throat can vary from person-to-person. The common symptoms are as follows:

Sudden high fever

Mild soreness in throat

Redness in throat with white patches

Headache

Chills

Loss of appetite

Cervical lymphadenopathy (swollen lymph nodes in the neck)

Swollen tonsils

Difficulty in swallowing food or water

Pain when swallowing

Nausea and vomiting is seen in younger children

7 0
3 years ago
2 Points
CaHeK987 [17]
Photosynthesis? I think
3 0
3 years ago
As the course of evolution has proceedin plants, what is the overall trend in the relationship of the diploid stage and the hapl
Lostsunrise [7]
<span>Meiosis in simple terms is the process by which gametes (sperm and egg) fuse together to produce a fertilised egg. Haploid is a word that refers to how many chromosomes a certain cell has. In this case the gametes have a haploid number of chromosomes, which is half the number a normal cell has. A normal cell has a diploid number of chromosomes. So in meiosis the two gametes come together with their hapoid number of chromosomes each to create an egg that has a diploid (standard) number of chromosomes.</span>
3 0
3 years ago
O fitoplâncton é a base das cadeias alimentares marinhas ,estando presente apenas na zona fótica . Vc concorda com a afirmação j
gayaneshka [121]

Answer:

El fitoplancton se basa en la cadena alimentaria marina. Sin embargo, el fitoplancton significa mucho más porque forman la base y la base de la cadena alimentaria marina. Se les conoce como fitoplancton porque dependen de la luz para el crecimiento y el sustento de la vida fuera del hábitat marino. Se sabe que son responsables del 50% de la fotosíntesis de la Tierra, por lo tanto, son cruciales para la supervivencia humana. Las algas son un grupo importante de fitoplancton. Otros ejemplos incluyen cianobacterias y diatomeas.

Explanation:

8 0
3 years ago
You are given two true-breeding groups of rabbits. The first group has floppy ears and white coat color. The second group has st
malfutka [58]

Answer:

Option E, Floppy ears are dominant over straight ears; coat color is determined by incomplete dominance

Explanation:

Let the allele for floppy ears be "F" and the allele for straight ears be "f"

And Let the allele for black coat color be "B" and the color for white coat color be "b"

Now, the cross is carried out between the first group having floppy ears and white coat color (FFbb) and the second group having straight ears and black coat color (ff BB)

The 16 offspring have genotype FfBb

Phenotype of 16 offspring is Floppy ears and grey coat

Ff represents the floppy ear , thus "F" is dominant over "f"

Bb represents the grey color which is a case of incomplete dominance in which none of the real trait i.e black or white is expressed.

Hence, option E is correct

6 0
3 years ago
Other questions:
  • What elements are carbohydrates generally composed of?
    11·2 answers
  • WILL GIVE BRAINLIEST!!!!!!!!!!
    10·2 answers
  • Will upvote if answered!!:
    8·1 answer
  • Which of the following organisms exhibits radial symmetry?
    8·2 answers
  • Nelly, a mother of two, adopts a particular hormonal method of birth control after which she notices her breasts swell up, and s
    12·1 answer
  • Which of the following components of blood are removed during kidney filtration?
    5·1 answer
  • Why is water important?
    6·2 answers
  • When an organism of many cells breaks up into two or more parts and these parts survive to produce a new organism, reproduction
    10·2 answers
  • There were several pre-Darwin explanations of evolution. Choose one and compare them to the accepted Darwin theory of Natural se
    5·1 answer
  • WILL GIVE BRILLIANT IF ANSWERED RIGHT
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!