Answer:
true
Explanation:
Aliyah found a tarnished silver dollar and recalled that tarnish results when metals react with oxygen or sulfur compounds in the air. She polished the silver dollar to remove the tarnish until it was shiny again. She also polished a copper bracelet and a gold ring. What physical property of these metals makes them shiny?
Answer:
LUSTER
Explanation:
The physical property of the metals that make them shiny is called Luster. Therefore, Aliyah was able to polish the metals like silver, copper, and gold.
What is luster?Luster is one of the important physical properties of the metals, which refers to the way light is reflected from the surface of the metal. In the context of metal, luster refers to the shininess or brightness of the metal surface.
The luster of a metal ranges from dull to very shiny and can influence the perceived value of the metal as well as its suitability for various applications.
The luster of a metal can be affected by factors such as surface roughness, impurities, and exposure to environmental conditions such as corrosion and oxidation.
The treatment of a metal surface, such as polishing and plating, can also impact the luster of a metal.
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During the program, the hosts show tweets and videos submitted by viewers around the world about the topic.
Choose (2) of these tweets/videos - How does colonization shape the world we live in?
(1) with a negative view of colonization/imperialism and
(1) with a positive view of colonization/imperialism
- and summarize the viewer's question or opinion. *
Answer:2
Explanation:
If two fruit flies, heterozygous for a gene that codes for eye color , were bred together and had 200 offspring , about how many would have the dominant phenotype
Answer:
75%
Explanation:
Assuming that eye color follows mendellian inheritance, two heterozygous parents would breed as follows:
Ee x Ee
Punnett sqaure
E e
E EE Ee
e Ee ee
All organisms possessing allele E will express dominant phenotype.
From two fruit flies, 75% would have the dominant phenotype.
What do you mean by phenotype?The phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes.
Phenotype refers to an individual's observable traits, such as height, eye color and blood type. A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
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How do you get 0 blood type?
Answer:
You cannot change your blood type. You are born with what you are biologically given and it is permanent.
Answer:
What happened was that dad and mom each passed both an O and an Rh negative to the baby. The end result is an O negative child. Each of their kids has around a 1 in 8 chance of having O negative blood. This is possible because both O and Rh- are something called recessive traits.
Explanation:
My trusty sidekick google, i hope it helps :) <3
The range of wavelengths for visible litis.
Answer:
400-700 nm
Explanation:
While the actual answer is 380 to 700 nm, that is the closest to it.
Warm-Up Activity - Scenario: You are on a desert island. Alone. You must survive. The island has only one food source
that you've found: pineapples. It takes you 2 hours to harvest and cut up 1 pineapple (you have no knife!). You also want
to build your shelter. Each piece takes you 3 hours to build.
You have only 12 hours of sunlight and need to complete your tasks by sundown.
How will you spend your hours? Record your decision on your student notes.
Warm-Up-
1. Think back to the Warm Up activity. Why did you spend your hours the way you choose?
2. Whatlimits did you face? What tradeoffs did you make?
3. How does scarcity (limited resources) affect our economy and ability to produce?
Ce
Answer:
Explanation:
first day at the desert most of my hours will be spent making shelter for safety and then in the evening hunting is done for food.
Pineapple has an alternative way of opening without knife, which is to hit and roll on the ground severally exerting little force this allow the hard shell to be loosely packed and can be easily removed with hands from each box on the pineapple body.
The best way to maximize time is to do the most important and tedious work first.
Having limited tools to work with because it is a desert is a major challenge
Scarcity have put some industries on hold, many could not produce in large quantities because of Scarcity. The available resources is what is shared among many which makes its unavailable.
It affects the economy in terms of production and expected yield and return, it also affects people's standard of living.
how does a plant cell differ from an animal cell?
Answer:
differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Explanation:
Got this from google hope this helped!:)
a construction company is building a house. After a truck delivers the materials, workers build a wooden frame, cover the exterior with bricks, and spread gravel for the driveway. which resource used in the scenario is nonrenewable?
Answer:
the diesel fuel in the delivery truck
Explanation:
i took the quiz
Answer:
here u goo got a 100%
Explanation:
Which of the following bones are considered to be the MOST proximal?
metatarsals
clavicle
ulna
olecranon
Answer:
Of the group of bones mentioned, the most proximal is the clavicle, which is part of the shoulder girdle.
Explanation:
Proximal is a reference term used in anatomy to indicate the structures that are closest to the center of the body.
The bones mentioned -clavicle, olecranon, ulna and metatarsals- are related to the function of the limbs. The clavicle is the closest bone to them, located between the neck and the thorax, on each side of the midline of the body.
Regarding the other options, other bones are distal, as they move away from the center of the body. In order from less distal to more distal they are found:
Olecranon, which is a bone eminence of the ulna, in the upper limb. Ulna or cubitus, which is part of the bones of the forearm. Metatarsals are the bones that form part of the foot.Which of these choices is a risk of replacing a coal-burning power plant with
a nuclear power plant?
A. Improper storage of radioactive waste
B. Reduced greenhouse gas emissions
C. Improved respiratory health of residents
OD. New jobs created in the nuclear power plant
The statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.
What is nuclear power plant?Nuclear power plant is a power plant that obtains its primary energy from the heat generated in nuclear reactions.
Nuclear source of energy is a renewable source while a coal source of energy is nonrenewable.
However, nuclear radiation releases radioactive particles indiscriminately into the environment when used.
Therefore, the statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.
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write the difference between Power and energy
Answer: Energy is what makes change happen and can be transferred form one object to another. Power is the rate at which energy is transferred.
Which of the following hormones can be taken orally because they are lipid-soluble and can diffuse across the digestive system wall?
Check All That Apply
Prednisone
Testosterone
Antidiuretic hormone
Insulin
Thyroid hormone
Cortisone
The hormones that can be taken orally because they are lipid-soluble and diffuse across the digestive system wall include Prednisone, Testosterone, Thyroid hormone and Cortisone.
Steroid hormones are liposoluble hormones that can translocate through cell membranes.
Prednisone is a synthetic hormone similar to cortisone.
Cortisone is a corticosteroid hormone secreted by the adrenal glands.
Thyroid hormones are liposoluble hormones secreted by the thyroid gland.
Testosterone is a steroid hormone produced by the testicles in males and by the ovaries in females.
In conclusion, the hormones that can be taken orally because they are lipid-soluble and diffuse across the digestive system wall include Prednisone, Testosterone, Thyroid hormone and Cortisone.
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Which of the following statements is true about both fungi and protists
A) They can both photosynthesize
B) They reproduce by binary fission
C) Single-called organisms are found in both groups
D) Both groups are motile
The statement 'single-celled organisms are found in both groups' is TRUE (Option C).
Both protists and fungi are eukaryotic organisms, which means that their cells have the genetic material (DNA) compartmentalized in a cell nucleus and membrane-bound organelles.
Protists are single-celled microorganisms that belong to the Kingdom Protista. The protists represent a broad category of microorganisms that cannot be categorized as animals, plants, or fungi.
Moreover, fungi are organisms characterized by their cell walls, which contain chitin. These organisms are generally sessile like plants.
Fungi can be unicellular or multicellular. The unicellular fungi are known as yeasts (e.g., Saccharomyces cerevisiae).
In conclusion, the statement 'single-celled organisms are found in both groups' is TRUE (Option C).
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Is this DNA or RNA????
rna your welcome person
Each strand of a DNA molecule contains nitrogenous bases that pair with other nitrogenous bases in very specific ways. A segment of a DNA strand is shown.
3’ GATCGATC 5’
Which complementary DNA strand pairs correctly with the strand above?
A. 5’ CTAGCTAG 3’
B. 5’ GATCGATC 3’
C. 5’ CUAGCUAG 3’
D. 5’ CATCGATC 3’
Each base pair forms a "rung of the DNA ladder" by joining two complementary DNA nucleotide bases. Two linked strands of DNA form a double helix, which is a structure that resembles a twisted ladder.
What is complementary base pairing in DNA molecule?Because they are complementary base pairs, adenine binds to thymine while guanine attaches to cytosine. The complimentary bases may unite to form a bond.
This aids in holding the DNA molecule's two antiparallel strands together to form the helix. The complimentary base pairing rule refers to this.
Cytosine pairs with guanine, while adenine pairs with thymine. The two strands are so complimentary to one another.
For instance, a complementary DNA strand will have the nucleotide sequence 5' CTAGCTAG 3' for a DNA strand with the nucleotide sequence 3' GATCGATC 5'.
Therefore, According to this rule, nucleotides A and T and bases G and C are always equally abundant in DNA.
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is salt and sand a suspension?
Answer:
Yes
Explanation:
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Answer:
Explanation:
The particles of salt become so small, they spread evenly throughout the water. This clear mixture of salt and water will not separate by itself. Sand in water is also a suspension. If you shake a container of sand and water, the sand spreads through the water, forming a cloudy liquid.
Which of the following is the fusion occurring in our sun?
a. lithium to beryllium
b. helium to hydrogen
c. hydrogen to helium
d. helium to carbon
Answer:
hydrogen to helium
Explanation:
I searched it up
Which factor does the moment magnitude scale estimate?
Answer:
Energy released
Explanation:
The moment magnitude scale estimates the total energy released by an earthquake.
Answer: The answer is Energy Released
Explanation: I Just did this Question.
SELECT ALL THAT APPLY. Which two elements make up the water cycle?*
2 points
Carbon
Sulfer
Nitrogen
Gold
Phosphorus
Hydrogen
Oxygen
Helium
This is a required question
Answer:
Maybe
hydrogen and oxygen
I need help ASAP please
Answer:
D
in both the Eastern and Western Hemisphere
Explanation:
Humans, plants and mushrooms are all alive. What do these organisms have in common?
Answer:
They are all made of cells, grow, are living, and reproduce.
Explanation:
its true
Excess carbon gasses released into the atmosphere cause additional radiation and Earth's average temperature to increase. This phenomenon is known as
Answer:
Green house gases and global warming
Which stroke or style is usually swum in a warm-up?
Answer:
The #1 stroke referred to in the warm-up is the stroke you're focusing on in the upcoming session, your main event this session. After sitting around for an hour or so waiting for your event, it's important to wake up the muscles and increase the blood flowing through your body again.
Aldebaran has an absolute magnitude of -0.6 and temperoture of 4 000 K making it most likely to be a main sequence star
A. True
B. False
A.True
Explanation:
hope this help ^^
Which products do not have scientific studies supporting their claims to be beneficial when used?
A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function
Answer:
i think it might be b
Explanation:
Who is considered to have discovered the electron?
Answer:
J.J. Thompson
Explanation:
Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.
Answer:
J.J Thomson
Explanation:
When ice and snow move overland in compacted large quantities, they erode the soil and can change landforms. Which object creates this type of erosion?
15
Direction. Encircle the letter of the correct answer.
1. Which of the following best explains convection current in the mantle?
a. The driving force due to heat from mantle that facilitates the slow movement of
lithospheric plates.
b. The magnetic force at the poles that moves the lithospheric plates away from
one another.
C. The gravitational force of the moon that pulled the lithospheric plates away from
one another.
d. The force of the atmosphere that pushed the lithospheric plates.
Answer:
the answer is letter A
Explanation:
thats my answer
What type of substance is sodium chloride?
Answer:
it is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.
Explanation:
Answer:
NaCl is an ionic substance, consisting of an ionic bond of the cation Na+ and Cl-. (both ions have charges that are attracted to its opposite)
1. The increase in the reproductive success of a species will have the greatest impact on
the-
Answer:
The increase in the reproductive success of a species will have the greatest impact on the prey of the animal.
Explanation:
The prey's population will decrease because there are more animals needing it to survive.