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
Rasek [7]
2 years ago
9

Помогите, пожалуйста

Biology
1 answer:
sleet_krkn [62]2 years ago
7 0

Answer:

djsjhshdhdhdhdhdhdhhehr

Explanation:

hhhhhhhhhhhhhhhhhhyyyyy

You might be interested in
N2+3h2--&gt;2NH3 <br><br> How many Nitrogen atoms are in none molecule of Ammonia ? Please help me
drek231 [11]

Answer:

6

Explanation:

well the question is kinda vague but multiply 3 and 2 and it comes out to 6 electrons by cross multiplying these variables

6 0
2 years ago
Describe facilitated diffusion of ions through the channel proteins
Amiraneli [1.4K]

Facilitated diffusion is usually significant to pass the ions across the hydrophobic layer of the plasma membrane. Transmembrane integral protein and careers proteins provide the channels that allow the ion to pass across the membrane.  When an ion bind to their active site on the protein (note that the proteins are very selective), the protein changes conformation. It is this change in conformation opens up the channel that allows the ions to be passed across the membrane. When the ions are released inside of the cell, the protein resumes normal shape (and the channel also closes) and the active site becomes available again or another ion.

4 0
3 years ago
What are the similarities and differences between prokaryotic and eukaryotic cells?
Gelneren [198K]

Eukaryotic

  • Have membrane bound organelles, such as  a nucleus
  • Have multiple chromosomes
  • Usually multicellular
  • Animals and Plants
  • Have a mitochondria, endoplasmic reticulum, cytoskeleton, vesicles, larger ribosomes, golgi apparatus, vacuoles, cell wall, and a flagella
  • Eukaryotes are bigger than prokaryotes.

Prokaryotic

  • Does not have a nucleus
  • Has one chromosome (not a true chromosome, plasmid.)
  • Usually unicellular
  • Bacteria and Archaea
  • Contains smaller ribosomes, vesicles, flagella, cell wall, and vacuoles.
  • Prokaryotes are smaller than eukaryotes

Hope this helps :)

3 0
2 years ago
In a humoral or antibody-mediated immune response, specific B cells are stimulated by Helper T cells to help transform into plas
steposvetlana [31]

Answer:

An important feature that B-cells must have in order to become plasma cells and synthesize antibodies is increased rough endoplasmic reticulum in order to have the surface area needed for antibody production (option A).

Explanation:

The transformation of B cells into plasma cells to produce antibodies is a well known function of lymphocytes related to the immune response. This leads to a series of structural transformations in order to performs their function.

The rough endoplasmic reticulum (RER) has the function of contributing to protein synthesis, in conjunction with the ribosomes that are attached to it and the information of the mRNA.

<em>One of the changes experienced by B cells in their transition to plasma cells is the availability of larger RERs, in preparation for antibody synthesis, formed mostly by proteins</em>.

Learn more:

Plasma cells and humoral immune response brainly.com/question/1512036

5 0
3 years ago
_______ observation is made using one or more of the five senses. An independent variable is a variable that’s _______ changed i
AlexFokin [52]

Answer:

1)qualitative

2)controlled

3)Theory

4)independent

5)quantitative

An inference is an assumption and an observation is data you collected

6 0
3 years ago
Read 2 more answers
Other questions:
  • 2) What role do predators play in maintaining the balance of an ecosystem
    14·1 answer
  • If a cell has 18 chromosomes, how many chromosomes would each daughter cell have after mitosis?
    13·1 answer
  • Birds that fly have lightweight bones some of which are hollow how might this unique body structure benefit the bird?
    12·1 answer
  • An experiment was conducted to determine how thick a concrete wall needs to be to block out the sound of highway traffic. Which
    11·2 answers
  • What rule is used to join the free nucleotides to the exposed bases of the DNA?
    13·1 answer
  • List the order the steps of the path of blood through the kidneys.
    15·1 answer
  • Which of the following nutrients is not a source of energy for the body?
    10·2 answers
  • Which of the following lists the correct symbol for the ion that tin forms when it loses 2 electrons, the correct classification
    15·1 answer
  • Traits are controlled by<br> hybrids<br> alleles<br> purebreds<br> genetics
    13·1 answer
  • How does the amount of day light affect the number of eggs laid by a chicken?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!