01:04 An atom of carbon (C) forms covalent bonds with two atoms of axygen (O) to form carbon electrons of these atoms rearranged to form the bonds? dioxide. How are the valence

Answer:

If we talk about Andean states, they comprise a group of areas in  South America that are connected with each other through Andes mountain range. "Andean States" refers to seven countries that the Andes  mountain range runs through and the areas that share share languages, culture and cuisines.

These areas include Colombia ,Ecuador ,Bolivia, Venezuela  and Peru.

Landforms of Andean countries:

The Andes comprise longest range of mountains in the world and arc from northwestern South America to the western coast to Patagonia.

They also constitute major component of the Pacific Ring of Fire, that is a circle of volcanic centers near Pacific basins that comprise tectonic boundaries between continental and oceanic plates.

Andes are further sub-divided into two or three nonvolcanic  and volcanic folded mountain ranges that get separate by lofty plateaus.

Two of the highest peaks of the Andes Argentina’s 22,841-foot high peak and volcano Ojos del Salado astride that is 22,615-foot high.

The Andes, also contains glaciers in some parts of the ranges, arid heights and also ice-laced moving boulders that are commonly known as “rock glaciers.”

Shields are the highland areas and ancient parts of South American continent.  There are different shield areas like Brazilian Shield that covers huge portion of south America, The Guiana Shield  that is at north of Amazon Basin and contains big, isolated lands called “tepuis”.

Similarly, The Patagonian Shield that lies in the south region and contains streams and  draining off the mountains.

The basins are Massive sedimentary  lands that comprise the rest of the part of South America. These include the  Amazon, Orinoco and Chaco-Pampa.

The Orinoco comprises a tectonic lowland that is filled with  Caribbean coastal ranges. This is the basin from where Orinoco River emerges.

Amazon Basin is drained by the largest river of the world and contains world's almost twenty percent fresh water that it delivers to the seas and oceans.

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Answer:

cancer whooping I don't think its chickenpox tho

Explanation:

oit said that the vac for smallpox which is (chickenpox I think) is no longer used so int think its chickenpox

Usually cell growth in normal cells are controlled by genes that promotes cell proliferation and also inhibiting them. If a damage occurs in normal cell,the damage is either rectified or apoptosis is initiated. When these genes that control cell proliferation or apoptosis acquires mutations they lose their ability to control their cell division process thereby acquiring uncontrolled cell growth.

The uncontrolled growth in cancer is due to accumulated abnormalities.

It should be noted that the uncontrolled growth of abnormal cells that are in the body results in cancer. In this case, when the normal control mechanism in the body of a person stops working, then cancer will develop.

Therefore, the old cells will not due but rather, they'll grow out of control and result in abnormal cells. They will k then form a mass of tissue that's referred to as a tumor.

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It's C , The reason is because as the seafloor spreads, new rock is symmetrically distributed to both sides of the ridge, so the rock on each side has the same pattern of magnetic orientation.

The statement that provides evidence to support the theory of seafloor spreading is as follows:

Thus, the correct option for this question is C.

Seafloor spreading may be defined as the process of construction of fresh regions of oceanic crust which takes place through the uplifting of magma at mid-ocean ridges and its ensuing outward movement on either side.

When this process of seafloor spreading occurs, recently developed rocks are symmetrically distributed to both sides of the ridge, And due to this, the rock on each side has an identical pattern of magnetic orientation.

This magnetic orientation plays a major role in the movement of tectonic plates apart at a divergent boundary located at the mid-ocean ridge.

Therefore, the correct option for this question is C.

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The process of sexual reproduction includes fusion of female and male gametes coming from both the parents. In the process of sexual reproduction, a new individual is produced due to the combination of two haploid gametes, one from the female parent, and the other coming from the male parent.  

The importance of sexual reproduction:  

1. The joining of DNA from two distinct individuals results in the increase in the genetic variation in the offspring.  

2. This further results in diversity in the population that assists in natural selection.  

by growing tress and by putting down hydro mulch as needed

One positive choice someone can make to help their health would be to exercise if you are overweight. One negative choice someone can make that can worsen their health would be drinking any alcohol. Exercising when overweight can help your health by decreasing chances of heart diseases and drinking any alcohol to an excessive extent can harm your liver which can lead to death or a journey of pain and complications.

POSITIVE: a positive choice would include is if someone is gaining so much weight, they can start a diet or an exercise plan. Due to this they will control their weight and won't get diabetes(from junk food sugar candy etc.)

NEGATIVE: a negative choice is to smoke which would cause lung problems. People smoke because they have an addiction, and they just can't stop. later on you can die due lung issues.

cant help you buddy.. we need to see the graph in order to help you with this

Scientists did not know how traits were inherited.

Answer: scientist didn’t know how traits were inherited

Explanation: a p e x

None of the groups listed in the given options (Viruses, Fungi, Bacteria, Parasite) include members from both Plant and Animal kingdoms. Each group belongs to its own distinct classification.

None of the options (Viruses, Fungi, Bacteria, Parasite) in the question include members of both the Plant and Animal kingdoms. These groups belong exclusively to their own categories. Viruses are not classified in any kingdom because they are not cells and they require a host to replicate. Fungi form their own kingdom, separate from plants, animals, and bacteria. Bacteria also have their own kingdom, separate from plants, animals, and fungi. Lastly, the term "parasite" refers to a way of life, and can involve organisms from various kingdoms, but it does not itself include members of both plant and animal kingdoms.

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None of the options Viruses, Fungi, Bacteria, or Parasites have members from both plant and animal kingdoms. These groups all fall into distinct biological classifications.

None of the options presented, namely Viruses, Fungi, Bacteria, and Parasites, includes members of both the plant and animal kingdom. Each of these groups fall into a distinct category of life. Viruses are non-living entities that are not part of any kingdom. Fungi and Bacteria are each a separate kingdom in the biological classification system, distinct from both plants and animals. Parasites can be animal or plant specie, but they cannot be classified as both.

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Q 1) How different are the wet and dry earwax genes?

Answer:

switch of a single DNA unit.

Explanation

There is a specific gene that is associated with the ear wax and determine whether the people will have dry ear wax or wet ear wax. This gene is known as "ATP-binding cassette C11 gene"

Dry wax type individuals are homozygous for the gene while wet wax type individual have a difference of only one base where adenine is replaced by Guanine.  While wet wax type individuals are heterozygous for the gene which means that wet wax type gene is dominant over dry wax type gene.

So we can say that the genetic difference between two genes i due to a mutation that occurred and changed only a single DNA unit base due to which two phenotypes dry and wet ear wax developed.

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2) Why is earwax important?

Answer:

It is like biological flypaper, prevents dust and insects from entering the ear.

Explanation:

Ear wax is also known as cerumen in medical terms which consists of orange, gray or yellowish waxy material. This material is secreted by  ear canal  in mammals including humans and this has very important role in human life.

The ear wax helps in the lubrication of ear which serves an important role to protect the ear against insects, fungi, water excess and bacteria.

If we see from outside, this ear wax is comprised of hair,skin cells and secretions from sebaceous  and ceruminous glands. The major part of ear wax are unsaturated and saturated  fatty acids, squalene, cholesterol and alcohols.

In severe cases, ear wax can also cause blockage of ears due to excessive deposition of wax which can lead to serious hearing disabilities.

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3) Those of us who tend to sweat a lot and have armpit odor probably have what type of earwax?

Answer:

Wet earwax

Explanation:

Studies have reported that individual with wet ear wax particularly have more armpit odor due to enhanced production of sweat.Research suggest that the less sweat or body odor was useful for Native Americans  and  East Asians who used to live in a cold environment and therefore they had dey ear wax. The mutation causing wet ear was specifically is prevalent area wise in more dry areas of the world like Ainu in Japan however as well as Yamato in Japan.

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Q 5: If a person with wet earwax had offspring with a person who had dry earwax and all 200 of their children had wet earwax, what would be the genotype of the parent with wet earwax?

Answer:

WW

Explanation:

As we just studied that wet ear wax trait is dominant over dry ear wax trait, it means that a single copy of dominant allele W is enough for the offspring to have wet ear wax. So is question, it asked that a person with wet ear wax married a women with dry ear wax and had 200 offspring. All the offspring had wet earwax, so it clealry means that their father was homozygous for wet ear was alleles.

Let us see how:

P1:                                 WW    x ww

Gametes:                      W         :  w

Offspring:                     Ww: Ww

So, it means that if all offspring had wet ear wax it means that both parents were pure breeding for respective wax types, dry and wet ear wax. Otherwise there would be some proportion of offspring having wet ear wax as well.

Hope it help!

Hello!

The one change that is made by a scientist is the independent variable while the dependent stays the same. They change the independent variable to see the results of what would happen if they moved their experiment somewhere else or etc.

Hope this helps! ~Pooch ♥

The correct answer is: C. a procedure that uses grapes left overnight in a high concentration of salt water

Osmosis is the passive process (no energy required) of solvent molecules movement through a selectively permeable membrane. The process is passive because the solvent (water) moves from the region of low solute concentration into a region of high solute concentration. This happens in order to equalize the solute concentrations on the two sides.  

In the case of grapes, water will move from the grapes into the high salt surrounding water.

The procedure using grapes left in salt water demonstrates cellular osmosis by showing water migration out of the cells due to the hypertonic environment, resulting in decreased turgor pressure and grape size.

The procedure that would best demonstrate cellular osmosis is the one that involves grapes left overnight in a high concentration of salt water. When grapes, which are cells surrounded by semipermeable membranes, are placed in a hypertonic solution such as salt water, the water inside the grape cells will move out to the salt solution. This is due to osmosis, the diffusion of water from an area of lower solute concentration to an area of higher solute concentration across a semipermeable membrane. The grapes will lose turgor pressure as they become dehydrated, and their size and weight will decrease after being immersed in the hypertonic solution.

Cell division helps for a-sexual reproduction in the unicellular organisms. So the the answer would be, B.

Interphase, mitosis, and cytokinesis. Would be the correct answer.

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Answer:

Yes they are identical.

Answer:

No they are not.

Explanation:

They’re antiparallel because the two strands are “built” in opposite ways: one runs from 3' to 5' while the other is a 5' to 3' direction, 3 and 5 indicating the number of carbon rings in the deoxyribose rings of the sugar-phosphate backbone. It has nothing to do with the coding itself.

The enzymes and acidic juices that initiate protein digestion in the stomach are known as pepsin. Pepsin breaks down proteins into peptides, with further digestion by other enzymes in the duodenum leading to amino acids that are absorbed in the small intestine.

The enzymes and acidic juices in the stomach that break down proteins into smaller molecules are known for their role in the digestion process. The main digestive enzyme responsible for this is called pepsin. Pepsin breaks down proteins into smaller peptides, or short chains of amino acids.

Further down in the digestive tract, specifically in the duodenum, other digestive enzymes such as trypsin, elastase, and chymotrypsin, which are produced by the pancreas, continue protein digestion by reducing peptides to even smaller peptides. Eventually, peptidases like carboxypeptidase, dipeptidase, and aminopeptidase break these peptides down to free amino acids. These amino acids are then absorbed into the bloodstream through the small intestine.

I can help you if you show the word bank

Solar radiation is light energy from the Sun. So you've got the Sun. Millions of kilometers away from the Earth it sits there with all sorts of nuclear reactions going on. It's constantly giving off a huge amount of energy and radiation.

The Sun's heat reaches Earth via radiation, which allows energy to travel through space as electromagnetic waves over the 150 million kilometer distance. The Sun generates this energy near its core at a temperature of about 15 million Kelvin through nuclear processes. This radiation can cause sunburns, showing the intensity of the Sun's energy output.

The heat from the Sun reaches Earth through a process known as radiation, which is the transfer of energy through space without the need for a physical medium. This is possible because the Sun emits a tremendous amount of energy, primarily in the form of electromagnetic waves, which can travel through the vacuum of space. The distance of approximately 150 million kilometers (93 million miles) does not inhibit the transfer of the Sun's energy to Earth. In fact, the energy distributed by the Sun is generated within about 150,000 kilometers of its core, where the temperature reaches about 15 million Kelvin, allowing for the production of vast amounts of energy through nuclear processes.

Once emitted from the Sun, the energy travels across space and reaches Earth, warming the planet and providing light. Despite the vast distances, the Sun's radiation is powerful enough to cause effects such as sunburns, highlighting just how much energy it emits. This entire process explains why we can feel the Sun's warmth and experience daylight on Earth despite the Sun being millions of kilometers away.

gene,chromosome,dna,nucleus, and cell

if you look it up you will get the following stated below

"nitrogenous base, nucleotide, codon, gene, chromosome, nucleus, and cell"\

an easy way to remember it will to be

the gene tells you what it would be you get one from mom and one from dad

you need genes to link and make chromosomes

chromosomes to link into strands of dna

there is dna in the nucleus and the nucleus in inside the cell.

hopefully this helps.

Final answer:

The correct order from the smallest to the largest is gene, DNA, nucleus, cell, which makes option 3 the correct answer.

Explanation:

To determine which of the following is in the correct order from the smallest to the largest, consider the hierarchical structure of genetic material within a cell. The correct order from smallest to largest is gene, DNA, nucleus, cell. Therefore, the correct option is (3) gene, DNA, nucleus, cell.

Genes are segments of DNA that code for specific proteins and represent the functional units of heredity. DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions. A nucleus is an organelle within eukaryotic cells that contains the DNA. Finally, the cell is the smallest unit of life, encompassing the nucleus and other organelles.

Answer:

B

Explanation:

The organism would not have to find a partner in order to reproduce.

1. Asexual reproduction does not have genetic diversity. With sexual reproduction, this has been a man advantage since mixing a gene pool can produce diversity.

2. There is less variation produced with the offspring. The organism becomes less adapted to certain environmental changes. The entire communities of the genetically identical organisms might not survive such changes.

3. Asexual reproduction usually leads to struggle for existence as well as overcrowding.

The main distinction of asexual reproduction from sexual reproduction is that there is no need for two parents as well as special cells to reproduce. It means that special mechanisms have been essential to combine sex cells and allow fertilization are no longer required. This form of reproduction process has been simply mitosis. This results to copying of a parent organism. Most of the time, plants are thought to undergo reproduction. However, you have to know that there are also several kinds of animals that can reproduce asexually. By simply learning about the advantages and disadvantages of asexual reproduction, it will be easier for you to take care of other organisms around you.

Answer:

A.

Explanation:

Im a few years late but an answer is an answer.

Answer: cedar tree.

Explanation:

Deciduous trees are trees that shed off their leaves seasonally and regrow them during spring.

Examples are maple, hickory,beech, mangoe e.t.c.

Cedar is an evergreen tree. Evergreen tree maintain their leaves in all seasons. Cedar maintain it's leaves in all seasons, it doesn't shed it leaves.

Answer:

Had scientists been skeptical but not open minded about the idea,it would not have become scientific consensus.

Explanation:

The germ theory of diseases was logically proposed by Louis Pasteur and  between the 1860 and 1864 he performed series of experimentation to prove the relationship between diseases and germs.

Main postulate of germ cell theory:

The main postulate of germ cell theory was this that infectious diseases are caused by microbes or small organisms that invade the organisms and make him sick.

Was it accepted at once by scientists?

The germ theory was not accepted at once by all scientific communities because there were contemporaneous of this theory. Some scientists said that inner condition of a person’s cellular body actually determines whether he will suffer from disease or not. Others said that Every disease is associated with a particular condition or the diseases are caused due to unhealthy life style and many others.

How was it accepted:

It was by the middle of 1800s when the germ theory started getting acceptance from majority of scientists worldwide. This was because several experimentation were made around the world which proved that physical existence of germs is mandatory agent for the spread of diseases. During 1890s, viruses were also discovered and therefore a "golden period" of bacteriology started, which led to the approval of germ theory by scientists around the word and it became an accepted theory.

Coming towards the answer of question:

If the scientists always stayed skeptical and not open minded about the germ theory, it would never have gained acceptance and scientific consensus.

Hope it helps!

It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.

Answer:

B) it enters the citric acid cycle and associates with a four carbon molecule form is citric acid and then through redox reactions jet regenerates the four carbon molecule.

Explanation:

Acetyl CoA enters the citric acid cycle and reacts with a four carbon compound, that is, oxaloacetate. The reaction forms citric acid (6 carbons) which in turn undergo redox reactions to regenerate the oxaloacetate and the released electrons are accepted by NAD+ and FAD+. The final products of citric acid cycle are CO2, H2O, NADH and FADH2.

The correct answer is Eutrophication.

When a body of water become enriched with nutrients and minerals and induces growth of algae and plants is referred to as eutrophication.

The process of eutrophication can result to water body depletion.

When there is increase in nutrient levels there is increase in phytoplankton in the water body.

Discharge of nitrates which contain sewage, fertilizer, and detergents in aquatic system may induce the eutrophication.

The biological sciences and astronomical sciences both have their own challenges when it comes to the research. However, these challenges faced during the research differs in both these field of sciences as the method used for any research vary far too much.

In biological science researches, the researchers have the ability to control the environment and other parameters around their subject and be in touch with the concerned researched subject. However, things are not so easy in astronomical sciences, as the researcher is not able to control the parameters like temperature, and humidity when conducting an experiment and making observations.

Moreover, the observations cannot be made at the researcher's will in astronomy as he cannot taste or smell his subjects, but in biology such intimate observations are possible.

Answer:

A) A biologist uses microscopes; an astronomer uses telescopes.

B) A biologist researches living organisms; an astronomer does not.

D) A biologist explores things on Earth; an astronomer explores celestial bodies like stars and planets.

Explanation:

It's right on edge

I think it is probably an Embryo.

the answer is

an Embryo.