Answer:
Cats also purr when they are nervous or in pain, leading some experts to believe that this uniquely feline vocalization is actually a method of self-healing. A domestic cat's purr has a frequency of between 25 and 150 Hertz, which happens to be the frequency at which muscles and bones best grow and repair themselves.
Explanation:
Answer:
it is there defense mechanism
Explanation:
they purr because that is there defense mechanism. They also a way to keep calm i very stressful situations.
is essential to the body's ability to use iron.
A
Fluoride
B
Phosphorous
C
Chromium
D
Copper
We're no strangers to love
You know the rules and so do I
A full commitment's what I'm thinking of
You wouldn't get this from any other guy
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
And if you ask me how I'm feeling
Don't tell me you're too blind to see
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give, never gonna give
(Give you up)
(Ooh) Never gonna give, never gonna give
(Give you up)
We've known each other for so long
Your heart's been aching but you're too shy to say it
Inside we both know what's been going on
We know the game and we're gonna play it
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Several proposals have been made to increase the use of renewable energy. Which of these will help most toward that goal?
Question 42 options:
Design cleaner burning coal fired power plants.
Reduce the use of plastics in the waste stream.
Increase the use of solar electricity generation.
Design cleaner methods for fracking for natural gas.
Answer:
Increase the use of solar electricity generation.
Explanation:
The correct option would be to increase the use of solar electricity generation.
Solar electricity is a form of electricity generated by capturing the energy from the sun using special device known as solar panel. The captured energy is stored in a chemical cell which is then used to generate electricity. Because the will always exist and unending, the form of energy derived from it is referred to as renewable.
Hence, increasing the use of solar electricity generation will lead to a corresponding increase in the use of renewable energy.
Coal burning and natural gas are non-renewable energy sources while reducing the use of plastics in waste streams have no bearing on increasing the use of renewable energy.
Fish maintain water flow over their gills by swimming rapidly with their
mouths open or by taking in water through their mouths.
TRUE
FALSE
Answer: this is false fish only have water flow through there gills not mouths and thay dont have to be swimming
A chemical reaction can be represented by?
Need help ASAP it’s Science need it done right now
Answer:
1. changing
2. ? its either fast or mechanical....Id have to see the back of the paper
3. slowly
4. weathering
5. mechanical.....chemical
6. mechanical
Explanation:
The fusion of a _______________ and a _________________ produces a zygote with 46 (2n) chromosome number.
Answer:
The fusion of a egg and a sperm produces a zygote with 46 (2n) chromosome number.
In dogs, wire hair is due to a dominant gene (W), smooth hair id due to its recessive allele.a. If a homozygous wire-haired dog is mated with a smooth-haired dog, what type of offspring could be produced?b. What types of offspring could be produced in F2?c. Two haired dogs are mated. Among the offspring of their first litter is a smooth-haired pup. If these two wire-haired dogs mate again, what are the chances that they will produce another smooth-haired pup? What are the chances that the pup will be wire-haired?d. A wire-haired male is mated with a smooth-haired female. The mother of wire-haired male was smooth-haired. What are the phenotypes and genotypes of the pups they could produce?
Answer:
a) All the offspring produced would be a heterozygous in the first generation (F1 generation) with genotype: Ww, Ww, Ww, and Ww. Since wire hair is dominant, all would be wired haired.
b) In the F2 (second generation), we breed the heterozygous offspring from the F1 generation together (Ww x Ww). This will produce 3:1 ratio of dominant:recessive phenotypes having 3/4 of the offspring wire-haired (1/4 WW homozygotes and 1/2 Ww heterozygotes) and 1/4 will be smooth-haired (ww). Also the genotype would have the ratio 1:2:1 (i.e 1 homozygote WW, 2 heterozygote Ww and 1 smooth hair)
c) the chances of producing a smooth-haired pup is 1/4, and the chances of producing a wire-haired pup are 3/4.
d) Therefore, 1/2 of the offspring will have the genotype Ww and be wire-haired, and 1/2 of the offspring will be ww and be smooth-haired. Also the phenotype ratio is 1:1 (1/2 is heterozygote wired hair and 1/2 is smoth haired)
Explanation:
Since the wire hair is the dominant gene (W) and smooth hair (w) is the recessive allele
a) If a homozygous wire-haired dog is mated with a smooth-haired dog, All the offspring produced would be a heterozygous in the first generation (F1 generation) with genotype: Ww, Ww, Ww, and Ww. Since wire hair is dominant, all would be wired haired.
b) In the F2 (second generation), we breed the heterozygous offspring from the F1 generation together (Ww x Ww). This will produce 3:1 ratio of dominant:recessive phenotypes having 3/4 of the offspring wire-haired (1/4 WW homozygotes and 1/2 Ww heterozygotes) and 1/4 will be smooth-haired (ww). Also the genotype would have the ratio 1:2:1 (i.e 1 homozygote WW, 2 heterozygote Ww and 1 smooth hair)
c) If two wire-haired dogs produce a smooth-haired pup, that means that both parents must be heterozygotes (Ww) having a pair of dominant W allele and recessive w allele to pass on to the offspring. Therefore, if these two dogs were to mate again (Ww x Ww), the chances of producing a smooth-haired pup is 1/4, and the chances of producing a wire-haired pup are 3/4.
d) If the mother of the wire-haired male was smooth-haired, that means that the recessive allele w had been passed on to the male making the male a heterozygote (Ww). When this male mates with a smooth-haired female (ww), the cross is Ww x ww. Therefore, 1/2 of the offspring will have the genotype Ww and be wire-haired, and 1/2 of the offspring will be ww and be smooth-haired. Also the phenotype ratio is 1:1 (1/2 is heterozygote wired hair and 1/2 is smoth haired)
Which of the following is the best definition of biogeographic isolation? the separation of members of a species through geographical or biological forces the separation of members of different species through geographical forces the separation of populations of different species through time the separation of members of a species through anatomical forces
Answer:
The first one.
explanation:
biogegraphic isolation is the separation of members of the same species which can interbred among themselves and produce viable fertile offsprings
Answer:
A
Explanation:
edg 2020
Number of
Protons
Number of
Neutrons
Atomic
Number
Mass
Number
Element
(symbol)
4
2
А
B
C
D
12
10
Using the periodic table complete the table to describe each atom Type in your answers
Answer:4 2
Explanation:
What is the diference between the axial and appendicular skeleton
Answer:
The axial skeleton makes up our central axis and consists of the following bones: skull, vertebrae, ribs and sternum. The appendicular skeleton consists of the limbs and girdles.
please mark brainliest
Explanation:
Help please ill give you brainliest !!!!
Answer: I am not totally sure but I would say the answer would be (D)
Explanation: Exposure to Diborane will not kill you or anything like that but it will most likely cause you to have a cough, shortness of breath (but not to bad), and eye/skin irritation.
Your blood type is O. is this a gen or a gean
Which state of matter does NOT take the shape of its container? Solids Liquids Gases please help ASAP
Answer: Liquid
Explanation:
Liquid because, liquids have a definite volume. However, because the particles can move about each other rather freely, a liquid has no definite shape and takes a shape dictated by its container.
A scientist testing the effects of a chemical on apple yield sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each orchard is counted. Which of the following variables must be controlled in this experiment?
1. the amount of water that each orchard receives
2. the species of trees in the orchard
3. the number of apples that are produced by each tree
4. the size of each of the orchards
Answer:
1 and 2
Explanation:
1) The exercise scientist is looking for the effects of a chemical between an apple crop to which it is administered and another to which it is not, 4 options are presented, of which it is essential to count as a variable the amount of water each Orchard and tree species in the orchard, since they can generate alterations in the results, the other two variables of the exercise such as number of apples and size of the orchards are not significant and their variations do not affect the scientist's objective.
In birds, having long feathers (L) is dominant to short feathers (l). A homozygous dominant bird and homozygous recessive bird mate. After creating a punnett square, give the genotypes and phenotypes of the four resulting offspring (include the number of each)
Answer:
All the genotypes would be heterozygous (L l) and the phenotypes would be long feathers
Explanation:
Which technologies made it possible to maintain a controlled environment for cell cultures?
Answer:
Cell counter inverted microscope and liquid nitrogen storage incubator are the technologies used in the cell culture.
Explanation:
Cell culture needs control environment for the production of cells in order to avoid contamination from other microbes. For this reason, liquid nitrogen storage incubator is used which decreases the temperature in order to slow down the process of cell division and other cellular processes and also provide safety from contamination. Cell counter inverted microscope is used to see the growth of the cells at the bottom of storage tank.
Answer:
incubator
Explanation:
Define the mechanical differences of elastin and collagen then explain the influence of these differences on tensile strength of skin
Answer:
Collagen is produced in the human body until natural aging occurs, whereas elastin is mainly produced during the fetal period. Collagen has the main property of providing structures with strength, whereas elastin will allow the structures which contain it to stretch and return to their initial form without damage
From what I know, collagen/elastin ratio as well as the collagen and elastin structures change with age [3,4,5,6]. The elasticity of the skin increases with atrophy of the collagen fiber bundles, the related flattening of the rete ridges, and the thickening of the dermal elastic fiber.
Explanation:
Among rabbits, short hair is dominant over long hair. What would be the appearance of the
rabbits if a heterozygous short hair female were mated with a homozygous short hair male?
1. In a nuclear power plant, where does nuclear fission occur?
Answer:
nuclear fission reaction takes place in nuclear reactor
Explanation:
Answer:
Nuclear reactor
Explanation:
When an atom of nuclear fuel (uranium) absorbs a neutron, the uranium will fission into two smaller atoms (waste) and release one to three neutrons. The kinetic energy of the waste is used to heat the water for the steam turbine. The neutrons are used to fission the next lot of uranium atoms and the process continues.
pls mark brainliest
help meeeeeeeeeeeeeeee
Answer: b
Explanation:
Answer:
B
Explanation: I took the test :)
what is genetic code
Answer:
The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells.
Explanation:
Answer:
The genetic code is the set of rules used by living cells to translate information encoded within genetic material into proteins.
Define Liquid Crystal Display (LCD) ?
Answer:
flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.
Explanation:
What kinds of waves do earthquakes produce?
• seismic waves
• longitudinal waves
• transverse waves
• heat waves
Answer: Earthquakes produces seismic waves.
Answer:seismic waves
Explanation:
Which is the correct order of the states of MITOSIS?
A protein's primary structure dictates its final chemical behavior.
TRUE
FALSE
Answer:
true
Explanation:
The string of amino acids that makes up a protein's primary structure later determine the protein's final chemical behavior
PLEASE HELP ME IM CONFUSED
Answer:
B In space
because light moves faster where there is no gravity
Which traits are NOT inherited? (Check ALL correct answers.)
a) A boy has curly hair
b) A woman has a suntan
c) A girl has pierced ears
d) A dog has yellow fur
e) A cat has its claws removed
f) A girl has attached earlobes
g) A man has green eyes
h) A boy has long hair
Answer:
Listed
Explanation: B, C, E are your answers
How do the circulatory and respiratory systems play a role in track and field?
Answer:
Track and field requires a lot of running
Explanation:
When someone runs, blood needs to be circulated throughout the whole body. Constant blood is pushed throughout the body due to blood vessels in our circulatory system. The heart pumps faster so more blood is produced. Oxygen is needs to be reached to muscles. When someone runs, they tend to breathe heavier. Heavy breathing and more breathing is done by the respiratory system. Lungs need to filter air and therefore the respiratory system works hard as well
Which of the following
options does not
describe any kind of
stem cell?
A cell that can only
give rise to one cell
type
A cell that can give
rise to many different
cell types
A cell that can give
rise to all cell types
Answer:
the first one.
I on accidentally erased the explanation thing. but stem cells such as pluripotent cells can rise to all cell types which means that since the first one is saying that stem cells can only give rise to one cell type is incorrect.
What is 5% of 90 cents?
Answer:
4.5
Explanation:
:0