It’s tricky to develop a vaccine for the common cold
because:

Answers

Answer 1
The development of vaccines for the common cold has been difficult because of antigenic variability of the common cold virus and the indistinguishable multiple other viruses and even bacteria acting as infective agents.

Related Questions

_______ are large geographical areas that have similar climate and weather patterns.

a.Symbioses
b. Zones of tolerance
c. Biomes
d. Communitie

Answers

Answer:

i think its c.............

Answer:

The answer is C. Biomes

Explanation:

Large areas with similar climate and weather are called biomes.

There are three criteria that scientists use to classify kingdoms. What are they?

Answers

Answer: cell type, ability to make food, and number of cells in their body

Explanation:

pls help!!!! +10 brainly points

(I put a random answer in)

Answers

They are educated guesses is not true. A theory must be supported by evidence. Also it is mixed up with the word hypothesis in which case you could say that is an educated guess. Not for scientific theory

King Penguins and Fur Seals King Penguins and Fur Seals are both designed for swimming, and thus are very clumsy on land. With that in mind, answer these questions: Why do the penguins come onto land at all

Answers

Answer:

The correct answer is - chicks will not be able to survive in water.

Explanation:

Penguins spend the majority of their life in the water and for mating and moult they move to land and also lay their eggs on land. The wings or flippers of the chicks of these penguins are not as efficient as the wings of the adult penguins.

This makes it tough to survive on the waters for the chicks of penguins. Therefore they move to land even they are very clumsy on the land. The mating, molt and raising the chicks to few weeks are the prime reason.

How many offspring would result from a
single bacterium in 8 hours if they
reproduce every 20 minutes? (hint: the
population doubles three times every
hour)

Answers

Answer:

16777216

Explanation:

(8*60)/20 = 24 time

2 ^ 24 = 16777216

The science behind climate change states that human processes may be overwhelming nature's ability to balance and redistribute which element? A. sulfur B. carbon C. uranium 65 D. ammonia​

Answers

Answer:

B- carbon

Explanation:

carbon is what we break out and yeh

The human processes may be overwhelming the nature's ability to balance and redistribute carbon element in the environment. Thus, the correct option is B.

What are Climate changes?

Climate change are the long-term shifts in the temperature and weather patterns in an ecosystem. These shifts in the weather conditions may be natural or artificial, but since the 1800s, many human activities have been found to be the main driving force of the climate change, primarily due to the burning of fossil fuels such as coal, oil, and gas, which produces heat-trapping gases such as carbon dioxide, chlorofluoro carbons, etc.

Most of the human processes are found to be overwhelming the nature's ability to balance and redistribute carbon element in nature.

Therefore, the correct option is B.

Learn more about Human processes here:

https://brainly.com/question/12303491

#SPJ2

Question 9 (1 point)
The producers that live in the abyssal zone are chemosynthetic because this zone has no what

Answers

Answer:

No sunlight penetrates the Abyssal zone.

Explanation:

I did this on my study guide a while back and got an A for it.

Can some help me please ..

Answers

Answer: 2 dominant.

Explanation: The t's are capital so they are both dominant :)

In Drosophila, the genes r and s are linked. Flies of genotype r s/r s and rs /rs are crossed and an F1 obtained. The F1 allele arrangement is called:

Answers

Answer:

repulsion (trans)

Explanation:

Repulsion refers to the phenomenon by which each homologous chromosome contains one dominant and one recessive allele from two different linked genes. A trans arrangement occurs when an individual is heterozygous for two linked genes, where the recessive allele for one particular gene is located on the same chromosome as the dominant allele for the other linked gene, thereby dominant and recessive alleles are said to be “in repulsion”. Conversely, a cis arrangement occurs when both dominant alleles are located on one chromosome and both recessive alleles on the other.

As matter is recycled in our ecosystems, is lost. A. oxygen B. nitrogen C. carbon D. heat energy​

Answers

d. heat energy

Explanation:

the rest minerals are all not lost , i guess

Energy flows through an ecosystem and is dissipated as heat, but chemical ... of heat. Green arrows show the continual recycling of chemical nutrients. ... See the carbon cycle article for more info.

What would be the correct complimentary base pair be for a DNA strand with the following sequence...

ACGTGA


A. TGCACT
B. GGCTA
C. OTGAACT​

Answers

Answer:

Explanation:

A TGCACT

The correct complementary base pair for the DNA sequence ACGTGA is TGCACT (Option A).

Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long chains of nucleotides linked by hydrogen bonds.

In DNA, there are four types of nucleotides, each one containing one different nitrogenous base (i.e., Cytosine, Guanine, Adenine and Thymine).

According to the base pair rules, Adenine always pairs with Thymine, while Cytosine always pairs with Guanine.

In conclusion, the correct complementary base pair for the DNA sequence ACGTGA is TGCACT (Option A).

Learn more in:

https://brainly.com/question/131690

When one glucose molecule travels through the glycolysis processes, four molecules of ATP are generated. Is it accurate to suggest that glycolysis produces two ATP molecules?

Answers

Answer:

No

Explanation:

Technically, this is inaccurate. To say that glycolysis produces two ATP molecules strays from the input of ATP needed. Overall, 4 ATP molecules are produced during glycolysis. However, there is an input of 2 ATP molecules at the beginning. Therefore, the correct statement would be that glycolysis produces 2 net ATP molecules, not that glycolysis produces 2 ATP molecules. (The word net makes a big difference!!).

Are composed of polysaccharides or protein and act as antiphagocytosis
Select one:
O a. Capsules
Ob. Slime layer
O c. Glycocalyx
O d. S. layer​

Answers

Answer:

a. Capsules

Explanation:

Capsules are features of bacteria cell. A bacterial capsule is a structure made up of polysaccharides and proteins that functions to prevent pathogenic bacteria from getting engulfed (phagocytosid) by the immune system (white blood cell).

According to this question, capsules are bacteria structure that aid in antiphagocytosis of the bacteria. Gjj

What will i do to meet my goals?​

Answers

Answer:

Study and believe in yourself,don't give up!

Answer:

whatever your goals are you are going to try and try everyday and make sure you have people around you to help build you up

hope this helps

have a good day :)

Explanation:

The button-like structure that holds homologous chromosomes together at their middles during cell division is called the

Answers

Answer:

CENTROMERE

Explanation:

The CENTROMERE is the primary constriction region where the identical DNA molecules are most tightly bonded to each other during mitosis and meiosis.

The typical chromosome in metaphase is composed of two sister chromatids joined by the centromere.

Surrounding the centromere, we can find the kinetochores. These are laminar proteinic structures forming a plate where the spindle and kinetochore fibers will join during chromatids separation.

The position of the centromere defines the chromosomes as acrocentric, metacentric, or submetacentric.

Prequipo, resuelvan los siguientes problemas. Pueden
uladora
Encuentren los términos faltantes de las siguientes si
a) 1, 4, 16, ____, 256, 1024, 4096,
b) 4. 28, 196, 1372,
3294172,..
2. ¿Cómo encontraron los términos faltantes en cadas​

Answers

Answer:

a.) (4×2)² = 8² = 64

b.) =9604, 67228,470596

solo dividi el segundo termino con el tercero y me dio 7 y fui multiplicando el resultado por 7 

What is the realative humitity when the air pressure is at its dew point

Answers

The dew point is the temperature at which air must be chilled to achieve a relative humidity (RH) of 100 percent (at constant pressure). At this point, the air can unfortunately hold anymore water in the gas form.

The mononuclear phagocyte system is an intricate passageway within and between tissues and organs and is an area full of lymphocytes, which are phagocytic cells used to attack foreign invaders.

a. True
b. False

Answers

Answer:

False.

Explanation:

Mononuclear phagocyte comprises of cells defined from the bone marrow progenitors, cells that descend blood monocytes and tissue macrophages. This undergo phagocytosis and they phagocytes foreign Invaders and bacteria. That is they ingest or engulf any foreign substances in the liver cells.

Plz help me!!
This is due tomorrow!

Answers

Answer:

C

Explanation:

Answer:

C

Explanation:

Throwing stuff away increases pollution

Using paper one time means you need to throw it away

Riding everywhere in a car eventually leads to gas being burnt (with few exceptions)

what is not a function of the respiratory system?
A.
Inhaling and exhaling
B.
Removing carbon dioxide
C.
Providing lungs with nutrients
D.
Intaking oxygen

Answers

C. Providing the lungs with nutrients

b

Explanation:

I don't know the explanation

1
Correct
How is a scientific law different from a scientific theory?
A.
A theory becomes a law after a long period of time has passed.
B.
A theory is why something happens and a law is how something happens.
C.
A theory cannot be disproved but a law can be disproved.
D.
A theory is used for biology and chemistry and a law is used for physics.
Next

Answers

The correct answer is B. A theory is why something happens and a law is how something happens.

Explanation

A scientific theory is a way of describing why chemical and physical phenomena originate. An example of this can be the theory of Charles Darwin on the Evolution of species. In this theory, Darwin set out to explain why the evolution of species and what influenced this development. On the other hand, a scientific law is a description of how some of the phenomena of nature occur. For example, Isaac Newton's Law of Universal Gravitation was intended to describe the gravity. From the above, it can be inferred that the correct answer is B. A theory is why something happens and a law is how something happens.

The word fossil means
something dug up
something died
something old
soemthing buried

Answers

The word fossil means something extremely old

the term "fossil" means something radically (extremely) old

Select the correct answer.
Which of the following is correct for the effect of linkage on recombination?

A. It increases the percentage of recombinants.
B. It results in 50% recombinants.
C. It reduces the percentage of recombinants.

Answers

Answer:

C. It reduces the percentage of recombinats

Explanation:

When linkage between two genes increases, the chance of these two crossing over is reduced, because linkage keeps these particular genes together, unlike crossing voer which will mix them up.

Can an animal have no digestive system

Answers

Answer:no

Explanation:

Answer:

In other words, the platypus has no stomach. The stomach, defined as an acid-producing part of the gut, first evolved around 450 million years ago, and it's unique to back-boned animals (vertebrates).

Explanation:

If the amount of food or resources available increases, the carrying capacity of the animal would ?

Answers

Answer: Increase

Explanation:

Increase




Explanation: did this in middle school

100 POINTS!! Please answer all questions, will report you if you don't give a serious answer

Answers

Answer:

1. b

2. l

3. i

4. c

5. k

6. y

Explanation:

In a population of mice, there are two alleles of the A locus (A1 and A2). Tests showed that, in this population, there are 384 mice of genotype A1/A1, 210 of A1/A2, and 260 of A2/A2. What are the frequencies of the two alleles in the population

Answers

Answer:

f(A1) = 0.575f(A2) = 0.425

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

16. Which process has most likely occurred when new traits appear in a species?

Answers

Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms. ... Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

Mutations in genes produce new or altered traits, that leads to heritable differences (genetic variation) between organisms.

What is heredity?

Heredity is defined as the sum of all biological processes through which particular characteristics are transmitted from parents to their offspring.

Evolution occurs when these heritable differences become more common in a population, either non randomly through natural selection or randomly through genetic drift.

For more information regarding mutation, visit:

https://brainly.com/question/23030726

#SPJ2

Climate has to do with the amount of energy that is in Earth's System
True/False
explain Why?

Answers

Answer: false

Explanation:

Newton's third law of motion is also known as
______/reaction.

Answers

The law of action and reaction
The third law of motion is Action and reaction
Other Questions
Read the following sentences and answer the question:I will go to the party. I finish my homework.Which subordinating conjunction would be best to join these sentences together? Because Until Whether Once PLEASE HELPA bag hes 10 red marbles, 3 green marbles,7 yelow marbles, and 5 blue merbles. What isthe probability of crowing a red marble andthen g, blue, marble without replacing the first? Assume that one year ago, you bought 260 shares of a mutual fund for $19 per share and that you received an income dividend of $0.14 cents per share and a capital gain distribution of $0.24 cents per share during the past 12 months. Also assume the market value of the fund is now $15 a share. Calculate the total return for this investment if you were to sell it now. NEED HELP. question in image What is the value of x in the equation -x =2 - 3x +6?1) 82) 43) -4 4) -8 What is the difference between the highest percent of votes received by student in the lowest percent of votes received by a student? Round to the nearest whole number if needed. A. 20%B. 8%C. 35%D. 15% 4. Fill in the blank with the correct form of the verb in parentheses.Los tios de Toms(vivir) en Santo Domingo.You may copy and paste any of the following special characters if you need them: i Before Jesus died (the first time) on the cross before he did he took all the sin from the world so does that mean he didntt go to heaven since he took all the sin in the world before he died which means that Jesus died with all the sin in the world and thats as much as the devil!!! which of the following men rose to power to become the leading union general in the american civil war?Jefferson DavisUlysses S GrantRobert E LeeStonewall Jackson(ignore the already clicked answer) Gayle's hourly wage is $ 8.50. Gayle will be getting a 4% increase in pay at the end of the month. What will be Gayle's hourly wage after her pay increase? please help!! I'm really stuck on this What is the vertex of the graph of f (x) = 2x2 4x ? What is -25 1/4 - 19.1 in decimal form? You must show the steps for converting the fraction to a decimal. then show your steps in subtracing hey! ill give brainliest please help please answer this question What their view on Confederate Flags & Monuments would be today for the Reconciliationist ViewWhat their view on Confederate Flags & Monuments would be today for the White Supremacist ViewandWhat their view on Confederate Flags & Monuments would be today for the Emancipationist View if f(x)=3x+5 and g(x)=x^2+1, what is the value of (g o f)(x)? CUANTO DURA UNA PRRROGA? Rewrite the linear function 7xy=15 in slope-intercept form.y=7x15 y=7x+15y=7x+15y=7x15please help!! which statement is not guaranteed to be true