When the twitching pink nose of a mouse detects danger, the animal has to act fast. Fortunately, a predator rapidly triggers the release of stress hormones in the mouse and prompts behaviors that reduce the risk of it becoming the predator’s latest snack. helping explain how the brain translates danger signals detected by the nose into a physiological response. The research offers clues to the larger puzzle of how animals, including humans, perceive and respond to fear.
write a story of an atom below
Answer:
Democritus who was a Greek philosipher, believed that everything was made from tiny little indesrtuctible and undividable spheres called atoms at 400 B.C.E. Thomson believed that atoms were positively charged spheres of matter with electrons being randomly scattered in them in 1904
Antigens are foreign proteins that invade the systems of organisms. Vaccines function by stimulating an organism's immune system to develop antibodies against a particular antigen. Developing a vaccine involves producing an antigen that can be introduced into the organism being vaccinated and which will trigger an immune response without causing the disease associated with the antigen. Certain strains of bacteria can be used to produce antigens used in vaccines. Which of the following best explains how bacteria can be genetically engineered to produce a desired antigen? A. The gene coding for the antigen can be inserted into plasmids that can be used to transform the bacteria. B. The bacteria need to be exposed to the antigen so they can produce the antibodies. C. The DNA of the antigen has to be transcribed in order for the mRNA produced to be inserted into the bacteria. D. The mRNA of the antigen has to be translated in order for the protein to be inserted into the bacteria.
Answer:
A. The gene coding for the antigen can be inserted into plasmids that can be used to transform the bacteria.
Explanation:
Genetic engineering is the process of manipulating an organim's genome in order to yield a desirable result. According to this question, a vaccine is to be created using an antigen that will trigger an immune response against the particular disease in the involved organism.
However, the antigens needs to be produced by genetically engineering/modifying bacteria. To do this, the gene coding for the antigen can be inserted into plasmids, an extra-chromosomal DNA, that can be used to transform the bacteria. In other words, the plasmid + antigen gene, which represents the recombinant DNA will confer upon the transformed bacteria the ability to produce the antigen.
Answer:
The gene coding for the antigen can be inserted into plasmids that can be used to transform the bacteria.
How many chromosomes are there in
gametes?
HALF the amount of normal cells
The same amount as all other cells
DOUBLE the amount of normal cells
Answer:
HALF (23) the number of normal cells (46).
Explanation:
What is the difference
between selective and cross breeding ?
What is true about the evolutionary relationships between groups of animals on a phylogenetic tree?
a. The closer animals are located on a tree, the more characteristics they share.
b. Animals on a tree are related only if they are on the same branch of the tree.
c. Only the animals close to the bottom of the tree share a common ancestor.
d. The further apart animals are on a tree, the more closely they are related.
Answer:
The closer animals are located on a tree, the more characteristics they share.
Explanation:
The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors. In trees, two species are more related if they have a more recent common ancestor and less related if they have a less recent common ancestor.
Consider the sphere. A sphere. A is the great circle, B is the diameter, c is the radius, and d is the center. Identify the parts of a sphere. a is the b is the c is the d is the
Answer:
a is the great circle
b is the diameter
c is the radius
d is the center
Explanation:
What causes the difference in humidity between Florida and Las Vegas
Answer:
yep
Explanation:
Little or no humidity is not so true anymore, with the building up and more greenery. Las Vegas the humidly is not at all that low as it once once
The difference in humidity between Florida and Las Vegas is primarily due to their geographic locations and climate patterns.
What causes the difference in humidity between Florida and Las Vegas?Florida is located in the southeastern United States and is surrounded by water on three sides, with the Atlantic Ocean to the east, the Gulf of Mexico to the west, and the Straits of Florida to the south.
This proximity to water and the warm ocean currents that flow nearby create a humid subtropical climate, characterized by hot summers and mild winters with high levels of humidity throughout the year.
The low humidity in Las Vegas is due to the fact that the dry air has little moisture in it, leading to a lower amount of moisture in the atmosphere. Thus, there is a difference in humidity between Florida and Las Vegas.
Learn more about humidity, here:
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(giving brainiest)
brainly will ban you if you answer with a wrong absurd answer or copied answer if the question has over 50 points in it!
Answer:
Inner planets: Mercury, Venus, Earth, Mars
Outer planets: Jupiter, Saturn, Uranus, Neptune
They all orbit the sun, have a core, are round, and have gravity.
Jupiter vs. Venus: They both have reflective atmospheres. Jupiter is much larger and is a gas planet. Venus is smaller and has a rocky surface.
Explanation:
Hope this helps!
What kind of solution (hypertonic, hypotonic, or isotonic) is distilled water compared to the cell cytoplasm?
Answer:
i dont remember honestly
Explanation:
Is a river an abiotic or biotic factor
Is a river abiotic or biotic? A river is an abiotic factor.
Why? A biotic factor is anything living or used to be living while a biotic factor is something that is nonliving and was always non-living like a rock.
Which characteristic do jawless fish and cartilaginous fish have in common?
jaws
scales
skeleton of cartilage
tube-shaped body
Answer:
C. skeleton of cartilage
Explanation:
i got it right on edge
PLEASE HELP.
i only have until 3:30
ok so, The question is:
how does building a road, affect Logging companies? please make a SHORT answer not a LONG one
Answer:
Explanation:
building a road, affect Logging companies because the consequences of building the road are that it will provide loggers access to highly-valued trees, provide a more accessible trade route for merchants and farmers, affect the wildlife and water quality in the area, and possibly cause indigenous populations to relocate.
Answer:
Building a road effect logging companies by cutting down other trees in order to make a clear spot for the road
Explanation:
Describe how protists are helpful and harmful to humans and other organisms
( put this in a paragraph please)
Also describe how fungi are helpful and harmful to humans and other organisms. ( put this in a paragraph also please)
Answer:
Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. For example, medicines made from protists are used in treatment of high blood pressure, digestion problems, ulcers, and arthritis. Fungi are very important ecologically, because they are one of the most important decomposers in most ecosystems. They help to break down plant fibers such as dead leaves and wood and allow the nutrients to be released into the soil. Fungi are useful to humans because they have economic value.
Hope this helps
Explanation:
Please help Your friend claims that genetics has nothing to do with evolution. You disagree
with your friend. Use evidence and explain why genetics is connected to
evolution
Answer:
Evolution is a process, that results in changes in the genetic material of population over time. Evolution, reflects the adaptations of organisms to their changing environment and can result in altered genes, novel traits, and new species.
Evolutionary processes, depend on both changes in genetic variability and changes in allele frequencies over time.
What system includes the living components of the Earth?
a. geosphere
b. hydrosphere
c. atmosphere
d. biosphere
Please select the best answer from the choices provided
O A
OB
O C
OD
Explanation:
d is the answer..........
Answer:
D
Explanation:
this contains all living organisms and it is intimately related to the other three spheres: most living organisms require gases from the atmosphere, water from the hydrosphere and nutrients and minerals from the geosphere.
compared to gases liquids are not easily compressed because particles of liquids do what?
Answer:
LiquidsEdit
Because the particles can move, liquids don't have a definite shape, and they can flow. Because the particles are still packed close together, liquids can't easily be compressed and keep the same volume.
Explanation:
Answer:
particle of liquid exert pressure because they have low intermolecular space than compared to gas
Detrimen WHY the following statement can occur in DNA ?
a. the sequence -A-C-C-T-C-G- may be present in the DNA molecule
c. the ratio A: T and C: G is the same in the DNA molecule
e. the sequence -C-G-U-A-A-G-may be present in the mRNA molecule
f. the sequence -T-G-C-A-C-U- can not occur in the RNA molecule
How can I answer this question ?
Thanks allllllot
Answer:
c
Explanation:
I don't know about other but adenine is with tyamine and guanine with cyanine
HIV is a
Multiple Choice
double-stranded DNA virus.
single-stranded RNA virus.
single-stranded DNA virus.
double-stranded RNA virus.
prion
Answer:
single strand RNA virus
Explanation:
HIV has pair of single strand of RNA
Which of the following is NOT a source of genetic variation in a population ?
A. Recombination
B. Gene Flow
C. Extinction
D. Mutaion
a reptile egg is shown in the diagram which best describes function of the structure labeled y?
food source
protection
waste collection
gas exchange
Answer
food source
hope this helps
Answer:
A or food source 100%
Explanation:
True/False: Cellular respiration just happens to plants because they use photosynthesis.
Which of these best describes the process by which these organisms
obtain energy ?
Stem cells are -
cells that can only be found in embryos
cells that never go through division
undifferentiated cells with no specific job
cells that grow uncontrollably
Answer:
The correct answer is A or 1 or the first answer choice
Answer:
undifferentiated cells with no specific job
Explanation:
they can develop to many different cells in the body
The function of mRNA is to:
Question 21
4
Which nucleotide is only present in RNA?
Cytosine
Thymine
Uracil
Adenine
Answer:
The answer is Uracil
Explanation:
Uracil is the only nucleotide present in RNA. remember this RNA is ACGU and DNA is ACGT. See the difference?
I WILL GIVE BRAINIEST
What is the relationship between anabolism and catabolism?
Choose 1 answer:
(Choice A) A Anabolism and catabolism are identical processes.
(Choice B) B Anabolism builds molecules using the energy produced during catabolism.
(Choice C) C The breakdown of molecules in anabolism provides energy for catabolism.
(Choice D) D Catabolism synthesizes large molecules that are destroyed by anabolism.
Answer:
(Choice B) B Anabolism builds molecules using the energy produced during catabolism.
Lettuce, greenfly, ladybug, thrush, cat
Name the herbivore in the food chain.
Answer:
greenfly
Explanation:
In North America, about 65% of the population can taste
PTC
Calculate the frequencies of the dominant allele (p) and
the recessive allele (q) for the information presented.
Round to the nearest hundredth.
Value of p:
Value of q:
Answer:
p= 0.41
q=0.59
A mixture IS a pure substance
(True or false)
Answer:
no
Explanation:
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.
Prokaryotes live in extreme environments, where eukaryotes cannot live. List at least three such environments where you would expect to find prokaryotic cells, but likely not eukaryotic cells.
Answer:
Hyperthermophiles (above 80°C).
Acidophiles (usually at pH 2.0)
Alkaliphiles (extremely high pH value 9 to 13)
Extreme halophile
Explanation: