Why doesn't the United States have rich ore deposits?​

Answers

Answer 1

Answer:

Because the U.S. is rich in ECE deposits, these enthusiasts say, exploiting them is ... Both are certain that America's chief prospects for producing ... At the very top of the mine, a crusher reduced chunks of ore to pea-sized gravel. ... “It doesn't surprise me that we're the only ones looking at it right now.

Explanation:


Related Questions

What were Earth's continents like in the Jurassic time period?​

Answers

Answer:

Here

Explanation:

Answer:

.

Explanation:

All the answers please and thank you

Answers

Answer: 1. In CF, the body makes abnormal CFTR protein or none at all. Without normal CFTR protein, the cells lining the pathways (tubes) inside some organs make thick, sticky mucus rather than the normal thin, watery kind. Thick mucus can trap bacteria in the lungs, leading to infection, inflammation, and breathing problems. 2. When the CFTR protein is defective, epithelial cells can't regulate the way that chloride (part of the salt called sodium chloride) passes across cell membranes. 3. Mutations in the DMD gene cause the Duchenne and Becker forms of muscular dystrophy. The DMD gene provides instructions for making a protein called dystrophin . This protein is located primarily in skeletal and cardiac muscle, where it helps stabilize and protect muscle fibers. Collapse Section. DMD, the largest known human gene, provides instructions for making a protein called dystrophin. This protein is located primarily in muscles used for movement (skeletal muscles) and in heart (cardiac) muscle. 4. Lack of the dystrophin protein in muscle cells causes them to be fragile and easily damaged. DMD carriers are females who have a normal dystrophin gene on one X chromosome and an abnormal dystrophin gene on the other X chromosome. Most carriers of DMD do not themselves have signs and symptoms of the disease, but a minority do. Symptoms can range from mild skeletal muscle weakness or cardiac involvement to severe weakness or cardiac effects and can begin in childhood or adulthood.    5. Scurvy happens when there is a lack of vitamin C, or ascorbic acid. The deficiency leads to symptoms of weakness, anemia, gum disease, and skin problems. This is because vitamin C is needed for making collagen, an important component in connective tissues.  6. composed of ground substance and fibers. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substance consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. brainliest?

Explanation:

discuss the types of analysis that were important in the camarena case

Answers

Answer:

que es un poco más 510 510 de de la

true or false the typical X shaped chromosomes is the result of DNA replication​

Answers

Answer:

True

Explanation:

Truly, the typical X shaped chromosomes is the result of DNA replication. When the DNA has replicated, it then condenses and coil into the X-shaped of the chromosome. This then implies that replicated chromosomes take the X-shaped structures seen under a microscope.

When this replication occurs, the chromosome is made of two structures that are identical. They are known as the sister chromatids. These chromatids are actually joined at the centromere.


Which events may cause long-term changes in climate?
volcanic eruptions
changes in solar output
changes in the shape of Earth's orbit
changes in ocean circulation

Answers

Answer:

changes in the shape of Earth's orbit

Answer:

c

Explanation:

You have purified the receptor for a hormone by affinity chromatography. During gel filtration chromatography under native conditions the receptor elutes between pyruvate decarboxylase (250 kDa) and glutamine synthetase (620 kDa). During SDS-PAGE, in the absence of reducing agents, the receptor migrates as a single band of approximately 230 kDa. When SDS-PAGE is carried out in the presence of 2-mercaptoethanol the receptor migrates as two bands of approximately 95 and 135 kDa. Explain this result.

Answers

Answer:

the hormone receptor is a heterotetramer composed of two subunits with 95 kDa and two subunits with 135 kDa

Explanation:

In this case, the heterotetramer is composed of two heterodimers, each composed of two subunits that held together by disulfide bonds. These heterodimers bind together through hydrophobic interactions in order to form a tetramer. The Sodium Dodecyl Sulfate (SDS) is a denaturing detergent that dissociates both heterodimers by interfering with hydrophobic interactions that hold heterodimers together. It is for that reason that only a single band of 230 kDa is observed (135 kDa + 95 kDa = 230 kDa). Moreover, 2-Mercaptoethanol breaks disulfide bonds, thereby separating the two subunits in the heterodimer. In consequence, after the use of this chemical compound (2-Mercaptoethanol), two different bands with 135 kDa and 95 kDa can be observed.

Why do you think that the shape of the different types of fatty acid molecules affects how easily they solidify?

Answers

Answer:

Fats are actually a type of lipid. Lipids are a major class of biochemical compounds that includes oils as well as fats. Organisms use lipids to store energy and for many other uses.

Lipid molecules consist mainly of repeating units called fatty acids. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids. Both types consist mainly of simple chains of carbon atoms bonded to one another and to hydrogen atoms. The two types of fatty acids differ in how many hydrogen atoms they contain.

Explanation:

Can I plz have brainliest

The shape of the types of fatty acid molecules has an impact on their solidification.

It should be noted that in the unsaturated fatty acid, there is at least a double bond in its string. The carbon atoms that are joined by the bonds lead to the change in their shapes.

While saturated fatty acids have a linear structure, the unsaturated fatty acids kink or bend in order to form double bonds within the chemical foundation.

Read related link on:

https://brainly.com/question/11244537

Which amino acid chain will be formed by the codons shown below? GGA AAG UGU

A. Gly Lys Val
B. Glu Lys Val
C. Glu Lys Cys
D. Gly Lys Cys

Answers

Answer:

B

Explanation:

the pairing of codons......

i got option A on the test

Explanation:

How does a single fertilized egg cell develop into so
many different types of specialized cells?

Answers

Answer:

They both cannot produce all cells. Multipotent- limited to replacing cells in the tissue where they are found.

Explanation:

Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. What happens as the Earth moves so that the Northern Hemisphere is tilted more toward the Sun?
A.
The length of daylight increases in the Southern Hemisphere.
B.
The distance from the Sun decreases in the Southern Hemisphere.
C.
The average temperature decreases in the Northern Hemisphere.
D.
The amount of sunlight increases in the Northern Hemisphere.

Answers

B because sun is the jey word hope tuis helps and if not im sorry hope this helsp

Answer:

D.The amount of sunlight increases in the Northern Hemisphere

Explanation:

did this in study island trust me guys

How can humans mitigate the effects of human development on biodiversity?

Answers

Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.

What is the types of diseases affecting bone​

Answers

Answer:

Hey mate....

Explanation:

This is ur answer....

Examples of metabolic bone diseases include osteoporosis, rickets, osteomalacia, osteogenesis, marasmus imperfecta, marble bone disease (osteopetrosis), Paget disease of bone, and fibrous dysplasia.

Hope it helps you,

Mark me as the brainliest....

Follow me

Answer and Explanation:

Osteoporosis,  Paget’s Disease,  Bone Infection??,  Bone Tumors??

Those are the only ones I can think of rn..

differentiate between a university and a TVET college in terms of what each offers and explain the stigma associatited with TVET colleges?​

Answers

Explanation:

A TVET qualification is easier to achieve and at a lower price also focused on getting you into the workforce faster. University is geared towards the transfer of knowledge rather than skills.

the stigma associated with TVET colleges are that those who go to the college is a failure. or a institute for those who aren't smart enough. And also for those who failed to get into university

The difference between a university and a TVET college in terms of what each offers is university impact knowledge while TVET college is more of practical.

University and TVET college

The difference is University provide students with the knowledge they need based on the course they are studying while TVET colleges is more of practical.

The stigma associated with TVET colleges​ is because people think that University student has higher opportunities when they are in the labor market than TVET colleges student.

Inconclusion the difference between a university and a TVET college in terms of what each offers is university impact knowledge while TVET college is more of practical.

Learn more about University and TVET college here:brainly.com/question/26696444

https://brainly.com/question/22341556

is a point in a cladogram where a single ancestral lineage breaks into two or more descendant lineages

Answers

Answer:

Node, Claude

Explanation:

Nodes are points of attachment for leaves, aerial roots, and flowers. The stem region between two nodes is called an internode.

A clade is a grouping that includes a common ancestor and all the descendants (living and extinct) of that ancestor.

Answer:

Noda

Clade

Taxa

Explanation:

edge 2021

In a plant species, you notice that purple and yellow leaf colors segregate. Interestingly, hairy and smooth stems segregate, as well. You cross a true-breeding plant with purple leaves and hairy stems to a true-breeding plant with yellow leaves and smooth stems. You testcross the F1 from this cross to generate the following testcross progeny.Phenotypes yellow leaves, hairy stems purple leaves, hairy stems purple leaves, smooth stems yellow leaves, smooth stems Numbers 68 66 22 25 Total: 181 a) Indicate the most likely genotypes of each parent. b) What pattern of inheritance could explain the progeny results? Based on your answer, what ratios would be expected for the four classes of progeny? c) Using the chi-square method, test your ratios and indicate whether you accept them or reject them.

Answers

Answer:

Can u take a pic of the question

A news article discussed a genetically engineered medicine that is used to enhance the production of antibodies that are used against disease. Which medicine is this

Answers

Answer:

the sun

Explanation:

23. What event most likely took place after photosynthetic organisms were introduced on earth? a. The atmosphere content changed from highly oxygenated to CO2 b. Mitochondria began converting glucose into ATP at a higher rate c. Oxygen was introduced into the environment allowing for many other organisms to survive d. The water cycle was thrown off causing super storms​

Answers

Answer:

C. Oxygen was introduced into the environment allowing for many other organisms to survive

Explanation:

A is not correct because that is the opposite of what photogenic organisms do.

B is not correct because ATP and glucose do not apply.

D is not correct because photosynthesis does not have a direct affect on the water cycle itself.

What is the function of a chromosome
A. To tightly package a single amino acid
B. To tightly package a single protein
C. To tightly package a single molecule of DNA
D. To tightly package a single gene

Answers

Answer:

C

Explanation:

A chromosome is a dna strand wrapped around a histone and coiling to give the signature chromosome shape

Answer:

C. To tightly package a single molecule of DNA

Explanation:

how to read a scientific paper? and use a publication to demonstrate the different steps? pleas help me

Answers

Answer:

Attempting to read a scientific article for the first time may seem overwhelming and confusing. This guide details how to read a scientific article step-by-step. First, you should not approach a scientific article like a textbook— reading from beginning to end of the chapter or book without pause for reflection or criticism. Reading and understanding research papers is a skill that every single doctor and scientist has had to learn during graduate school. You can learn it too, but like any skill it takes patience and practice. Reading a scientific paper is a completely different process from reading an article about science in a blog or newspaper.

Explanation: i hope im right

✌hope u have a great day

how do water and living things interact?

Answers

they interact because living things need water and hydration to live

what is the difference between a marine ecosystem and a aquatic ecosystem?

Answers

Answer:

An aquatic ecosystem includes freshwater habitats like lakes, ponds, rivers, oceans and streams, wetlands, swamp, etc. and marine habitats include oceans, intertidal zone, reefs, seabed and so on. The aquatic ecosystem is the habitat for water-dependent living species including animals, plants, and microbes.

Explanation:

Answer:

ones freshwater and the other is salt

Explanation:

Studies of human-cat attunement show that
(check all that apply)
Cats are not significantly affected by human
emotions
Cats understand human spoken sentences
Cats respond preferentially to familiar humans
Cats don't seem to consider humans as a
cooperative partner
SUBMIT

Answers

Hey these are all that apply:

Cats respond preferentially to familiar humans

Cats don't seem to consider humans as a

cooperative partner

Cats are not significantly affected by human

Select the correct statement(s):

a. The thalamus receives stimulus from all of the five senses (sight, smell, taste, hear, touch)
b. Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus
c. The three layers that the retina is made of: photoreceptors, bipolar cells, rod cells.
d. The sense of smell uses phasic receptors which continuously fire as long as the stimulus is present

Answers

Answer:

The correct option is B Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus

Explanation:

a. The thalamus receives stimulus from all of the five senses (sight, smell, taste, hear, touch). FALSE. Olfactory information is not sent to the thalamus for its process. The rest is.  

b. Pressure-sensitive baroreceptors uses tonic receptors which adapt slowly to the stimulus. TRUE. Among the different types of tonic receptors, we may find baroreceptors, irritation receptors, tactile receptors, and proprioceptors. Tonic receptors characterize by their slow adaptation to the stimulus. The first discharge is maximal when the stimulus is received and then it progressively decreases. They send a continuous signal to the CNS.

c. The three layers that the retina is made of: photoreceptors, bipolar cells, rod cells. FALSE. There are in fact three layers in the retina: photoreceptors, bipolar cells, and ganglion cell layers. NOT rod cells.  

d. The sense of smell uses phasic receptors which continuously fire as long as the stimulus is present. FALSE. Olfactive sense uses phasic receptors, but not continuously. These receptors shoot when they receive the stimulus, and then cease if the stimulus keeps constant.

what types of interactions regulate gene expressions

Answers

Answer: Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.

I hope it helps u um.. can I pls have brainliest

Explanation:

Answer: Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.

Explanation:

how much is 14 pennies?

Answers

Answer:

14 cent

Hope this helps :)

Answer:

14 cents

Explanation:

$0.14

As water temperature __________ the amount of O2 dissolved in water _____.

Answers

Answer:

Explanation:

As water temperature increases, the amount of O2 dissolved in water decreases.  

The graph looks something like this (though not exactly. It just has the same sort of shape.)

wich of the following ingredients produce a heterogeneous mixture when mixed together ?
a.oil and water
b.sugar and water
c.salt and vinegar
d.molten copper and zinc​

Answers

Answer:

the answer is A

oil and water

Which group is allowed to unionize but NOT strike? *
farmers
federal employees
factory workers
professional athletes

Answers

Answer: The answer is federal employees

Explanation:

I'LL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Which of the following statements about cell organelles is NOT true?


A. Chloroplasts contain chlorophyll and are the site of photosynthesis.


B. Many of the same organelles are located in both plant cells and animal cells.


C. The nucleus in an animal cell has a different primary function than in a plant cell.


D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.

Answers

Answer:

C. The nucleus in an animal cell has a different primary function than in a plant cell.

Nucleus has the same function in a plant & animal cell.

1. Mitosis is a nuclear division that ?
the chromosome number

Answers

The nuclei resulting from a mitotic division are genetically identical to the original. They have the same number of sets of chromosomes:one in the case of haploid cells, and two in the case of diploid cells
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