Please help with this question worth 20 points

Please Help With This Question Worth 20 Points

Answers

Answer 1

Answer:

To double its attacking power.

Explanation:

"Interaction with armed helper T cells activates the B cell to establish a primary focus of clonal expansion. Here, at the border between T-cell and B-cell zones, both types of lymphocyte will multiply for several days to constitute the first phase of the primary humoral immune response."


Related Questions

should a business owner be more interested in making money or doing what they are passionate about?why?​

Answers

Answer:

passion

Explanation:

a business owner should be interested in doing what they are passionate about because if they like something they will make more money and more customers will be attracted to their new project

Why is ATP production Constant?

Answers

Regulation
It is vital that the level of ATP in cells remains constant, especially when the demand for energy increases. ... Although high levels of reactive oxygen species lead to cell death and disease, low levels of these species are important for regulating normal cell processes.

this is all from a crossword puzzle Across
7. Organisms which make their own chemical energy.
8. Long whip-like tail, used for locomotion.
9. Organisms which need oxygen to survive
10. Attachment points for bacteria
12. Small organelles involved in making proteins.
13. Name for true, modern bacteria.
14. Name for "squiggly" shaped bacteria.
15. Small circular segment of DNA. Often exchanged
between bacteria.
16. Photosynthetic bacteria containing chlorophyll a &
b.
Down
1. Organisms which obtain energy by consuming organic
material.
2. Structures which bacteria form to endure adverse
situations.
3. Name for all contents of a cell, except for nucleus.
4. Ancient bacteria often found in harsh environments
5. Name for rod-shaped bacteria.
6. Name for round shaped bacteria.
7. Organisms which do not require oxygen to survive.
11. The act of two bacteria joining and exchanging DNA.​

Answers

Answer:

7.autotrophs

8flagella

9.aerobe

10.pilus

12ribosomes

13 Eubacteria

14Spirillia

15Plasmid

16 photoautotrophic

1.heterotrophs

2endospores

3 cytoplasm'

4archeabacteria

5bacilli

6cocci

7anaerobec

11 conjugation

Explanation:

1. How did Hooke's work contribute to the cell theory?

Answers

Answer:

He looked at thin slices of cork through his microscope and discovered little tiny "cells," which he named because he described the plant cells as resembling the cells where monks lived. He then developed this discovery into cell theory.

If we want to investigate bacteria, we're going
to have to figure out how to keep them alive. If
we were doing this experiment in class, how
would keep the bacteria we find alive when we
bring samples back to our classroom?

Answers

Answer:

in a container with a lid

Explanation:

the lid would keep it aliveand keep in a refrigator

Angiosperms are the most common plant that you see every day. Describe what characteristics make them so successful.

Answers

Answer:

1. they are the most complex green flowering plants

2. they are vascular plants

3. they have well developed and complete flower

4. they are mainly terrestrial plants

5. they are seed plants with seed enclosed in the fruit

Explanation:

hope this helps

John and Sarah had a child born with cystic fibrosis, a genetic disease. Both John and Sarah were normal, showing no signs of this disorder. How is it possible for them to have a child with this disease?
a. Cystic fibrosis must be a dominant trait disorder hidden in both parents' genotype, but not showing in the phenotype, that could be passed on to offspring.

b.Cystic fibrosis must be a recessive trait disorder hidden in both parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

c. Cystic fibrosis must be a dominant trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

d.Cystic fibrosis must be a recessive trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring

Answers

Answer:

B

My logic:

I did a whole project on genetics and i love genetics. I know for a fact this is the correct answer because i had it 2 years ago on a test and got it correct. On the off chance im wrong, it has been 2 years and i might have mixed my facts up.

Hope this helps!

Answer:

it is b

Explanation:

reccesive doesn show in the phenotype because its covered by the dominant trait so the parents were fine but it is both parents so that the kid has an rr and not Rr or RR so that the reccesive trait would be covered by the dominant in the phenotype so B

9. Which is not associated with areas of karst topography? A caverns B sinkholes C flowing rivers D sinking streams​

Answers

A carerns. I think not 100

Answer:

It's A ) Caverns

Explanation:

Just Had This Quiz And Got It Right! Brainliest?

What is Chargaff's Rule?

Answers

Answer:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

a partial food web is show below

Answers

Answer:

a the red tail hawk has no natural predators so it will increase so a

Answer:

The butterfly pop. will increase

Explanation

If there are less grouse, then the butterflies will not have any predators

In which animal, respiration takes olace through lungs and locomotion by flippers? Answer in one word.

Answers

Answer:

Fish

Explanation:

A student observes the model and claims that the total mass of the reaction is conserved. Is the student's claim correct? Why or why not? A No, because the arrangement of atoms is different in the reactants and products. B Yes, because the reactants and products are made of atoms of the same elements. C Yes, because the number of atoms of each element is the same on both sides of the equation. D No, because the total number of atoms in products is greater than the total number of atoms in reactants.

Answers

C.  Yes, because the number of atoms of each element is the same on both sides of the equation.

Due to the law of conservation of mass, any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.

hope this helped!


I need help asap!! Please
It’s due in a little bit

Answers

Answer:

explain please????!??????!

John is completing an internship in biology at the Clearwater Marine Aquarium. While interning there, he monitors an outdoor phytoplankton exhibit to observe how populations of phytoplankton change when exposed to light. It is observed that each year the phytoplankton population within the exhibit increases when it was exposed to high amounts of sunlight. A new apartment complex that overlooks the aquarium is being built. The phytoplankton that were receiving 8-12 hours of sunlight each day will now have between 2-5 hours of sunlight. How will the phytoplankton be affected by the new apartment building?

Answers

Answer:A

Explanation:

It will decrease over time

Which is a disadvantage of asexual reproduction?

Answers

Answer: The major disadvantages of asexual reproduction are: Lack of diversity. Since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent. All the negative mutations persist for generations.

Hope this helps... Stay safe and have a great day/night!!!! :D

which statement about enzymes is true?

A. An enzyme functions to decrease the rate of a chemical reaction.
B. Enzymes are proteins that function as catalysts in nonliving things.
C. Each enzyme can catalyze many different biochemical reactions.
D. Enzymes and substrates fit together like a lock and key.​

Answers

Answer:

d

Explanation:

a is wrong as enzymes function is to increase the rate of a chemical reaction.

b is wrong as enzymes are proteins that function as catalysts in living things

c is wrong as each enzyme can catalyse a single reaction as they all have an unique pattern

hope it helps...

Which statement is NOT true about fluids?
A. all can flow
B. liquid and gases are included
C. some take the shape of their container
D.particles move easily past each other

Answers

Answer:

option D is correct

Explanation:

The statement which is not true about fluids is particles move easily past each other.

What do you mean by Fluids?

Fluids may be defined as any liquid or gas or generally any material that experiences a continuous change in shape when subjected to any object.

The properties of fluids indicate that all fluids can flow depending upon their densities. Some take the shape of their container due to fluidity. Fluids comprise liquid and gases.

Therefore, the statement which is not true about fluids is particles move easily past each other.

To learn more about Fluids, refer to the link:

https://brainly.com/question/7938474

#SPJ2

Please help me need this before 4:30pm
Atomic Number = the number of __________________________ in an atom.

Answers

Answer:

the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

Explanation:

the atomic number= protons and neutrons

The person tries to spear the fish but he always misses. Why?*​

Answers

Answer:

because of bad coordination

Explanation:

.......

Light reflects off the surface of the water making the fish seem like it’s there when really it’s not it could be close but not where you thought it was

16. Which phenomenan shows the effect of light dispersion? *​

Answers

A the blue sky is the right answer

In a strand of DNA, if the percentage of thymine is 30%, what would the percentage of cytosine in the same DNA strand be?

Answers

Answer: 20%

Explanation:

I haven't learned this exactly yet, but if there is 30% of thymine, then there has to be 30% of adenine because they match. That would leave 40% for other Guanine and Cytosine, and since they also match that means that it is exactly half, meaning that there is 20% Guanine and 20% Cytosine.

PLEASE HELP ME !
When did whale ancestors begin living full time in the water?

A) before they nursed under water

B) after they began eating a carnivorous diet

C) before they evolved gills

D) after they lost their hind legs

Answers

Answer:

40 million years ago

The earliest whales that we think were fully aquatic, that is, they never left the water, are found around 40 million years ago, during the middle Eocene. That means that the transition from terrestrial animals to fully aquatic animals took about 12 million years.

Explanation:

Answer:

After they nursed under water

Explanation:

who was the crazy little man who came up with continental drift ??

Answers

Answer: Alfred Wegener

Alfred Wegener: The Father of Continental Drift

Explanation:

scientist Alfred Wegener

Which of the following terms describes the following:

a device that converts electric energy into thermal energy

A heating appliance
B windmill
C transistor
D generator

Answers

Answer: heating appliance

Explanation:

How does the number of valence electrons in sodium (Na) compare to the number of valence electrons in calcium (Ca)? A. Na has two fewer valence electrons than Ca. B. Na and Ca have an equal number of valence electrons. C. Na has one more valence electron than Ca. D. Na has one fewer valence electron than Ca.

Answers

Answer:

D. Na has one fewer valence electron than Ca.

Explanation:

Elements in different groups has been grouper based on the number of valence electrons they possess. Valence electrons refers to the electrons at the outermost part of the shell of an atomic element.

Sodium (Na) belongs to group 1 on the periodic table meaning that it has one number of valence electrons while Calcium (Ca) belongs to group 2 meaning that it has two number of valence electrons. Hence, Na has one fewer valence electron than Ca.

is the diffusion of water molecules across a
semipermeable membrane and down a concentration gradient.

Answers

Answer:

Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes. ... The semipermeable membrane limits the diffusion of solutes in the water.

Explanation:

Whatever the person above me said
I wish I could have helped earlier but they already gave you the right answer

Please help a kiddoe out I will mark brainliest
Do you think the genetic disorders you identified in part A or B would appear in a person’s DNA fingerprinting profile? Explain your reasoning.

Answers

Answer:

Yes, I think genetic disorders would appear in a person's DNA fingerprint profile. It would appear because everyone has a variation in their DNA and genetic disorders show up in DNA, so it would appear in a person's DNA fingerprint profile.

Explanation:

Question 5 of 10
Psychiatrists and psychologists often refer to a manual that details different
mental disorders. Although it is controversial, it is still used by almost
everyone. This manual is called the:
A. TAT
B. SPT.
C. DSM
D. REM.

Answers

Answer: C

Explanation:

Answer: DSM

Explanation:

What are the cell types of these structures? 20 points and marked brainliest
Nucleus

Nuclear Envelope

Nucleolus

Ribosomes

Cytoplasm

Plasma Membrane

Cell Wall

Prokaryote

Eukaryote

Rough ER

Smooth ER

Golgi Apparatus

Vacuoles

Lysosomes

Chloroplasts

Mitochondria

Cytoskeleton

Microtubules

Microfilaments

Flagella

Cilia


AGAIN PLEASE NAME THE CELL TYPES!!! 20 POINTS AND MARKED BRAINLIEST!!

Answers

Answer:

Although cells are diverse, all cells have certain parts in common. The parts include a plasma membrane, cytoplasm, ribosomes, and DNA.

What is one of the roles of the enzyme, DNA Polymerase, during DNA replication?
Answer
F
It degenerates (breaks down) the old DNA strand once the new strand is made
G
It uses a strand of DNA to build a new strand of RNA
H It joins nucleotides to synthesize a complementary strand of DNA
J
It unzips the two strands in a molecule of DNA to begin replication

Answers

Answer:

H

Explanation:

Couldn't find my notes for this, but research says H- it builds a complimentary DNA strand

Other Questions
Which ratios have a unit rate of 5? Choose ALL that apply. 1. Es otro nombre para autobs en la Repblica Dominicana y en Puerto Rico.2. Es cuando no sabes dnde ests y necesitas ayuda.3. Es cuando no tienes mucho tiempo.4. Son los autobuses coloridos que se encuentran en Guatemala y en Mxico.a. estar de prisab. camioneta de pollosc. estar perdidod. guaguaSpanish speakers only!!!!!!!!!! plz i need help its a matching question Which statement describes the effect on the parabola f(x)=2xx-5x+3 when changed to f (x)= 2x2-5x+1 The fact that memories emerge most efficiently when the context of retrieval matches the context of encoding is known as:_______a. levels-of-processing b. encoding specificity c. the serial position effect. d. contextual distinctiveness PLZ HELP PLZNO WRONG ANSWERS Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.)f(x) = 3 48x + 4x2, [5, 7] Eran las diez de la noche cuando. I REALLY NEED THIS PLEASE ANSWER IT. ITS 50 POINTS.Josh loves to sing and enters a karaoke contest. The singing order for the 21 contestants is randomly selected. What is the probability that Josh is not one of the first two singers? Find the Highest Common Factor of 64 and 80. Graph f(x)=-2|x+4| khan academy Express in the form n : 1 . Give n as a decimal. 6 : 8 Which two people were of the same US political party between 1796 and 1801?A. John Adams and Thomas JeffersonB. John Adams and Alexander HamiltonC. Alexander Hamilton and Thomas JeffersonD. Aaron Burr and John Marshall Does the table show a proportional relationship, if so , what is the value of y when x is 10 Jenny earns $5.50 per hour to babysit plus a flat fee of $10.50 for travel. If Jennyearned $32.50 on Saturday, how many hours did she babysit? What did the dogs mainly do while the men searched for gold? Countries belonging to a ________ maintain whatever policies they see fit against nonmember countries.a) economic union.b) customs union.c) common market.d) free trade area. Ordena de forma creciente los siguientes nmeros enteros, colocando el signo de desigualdad mayor (>) o menor ( What does revolution means? Describe it in your own words Whats the surface area of 200 square inches ? -x + 5 + 6x = 1 + 5x + 3