write a 1 paragraph explanation on how the Big Bang is the start of the universe.

We know very little about the mantle because-

For humans, creating a picture of the mantle is very challenging. It is difficult to send a robotic or human mission to the mantle (Earth's core) to observe and gather additional evidence in order to further our understanding of its existence because of the mantle's extreme temperature.

A mantle is a layer inside a planetary body bordered below by a core and above by a crust. Typically the thickest and most massive layer of a planetary body, mantles are composed of rock or ice. Planetary bodies that have undergone differentiation by density are known to have mantles. Mantles are found on all planetary moons, all terrestrial planets (including Earth), and a number of asteroids. Silicate rock makes up the Earth's mantle, which lies between the crust and the outer core. Its 4.01 x 1024 kg mass is 67% that of the Earth. It makes up about 84% of the Earth's volume and has a thickness of 2,900 km (1,800 mi). Although it is mostly solid, in geological time it behaves like a viscous fluid.

To learn more about Mantle with the help of given link:

https://brainly.com/question/10758534

#SPJ9

Answer:

All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.

Answer:

Segmented body, Open circulatory system.

Explanation:

During an a-fib occurrence, the P wave and PR interval differ from the normal ekg.

The atria, the upper chambers of the heart, beat erratically and chaotically during atrial fibrillation, which causes the ventricles, the heart's lower chambers, to beat out of time Shortness of breath, weakness, or a rapid, hammering heartbeat which causes the ventricles,

But as Gahanna pointed out, there are a variety of factors that might cause A fib, including alcohol, strenuous activity, dehydration, stress, and eating a lot of food to beat out of time Shortness of breath.

To know more about a-fib event visit :

https://brainly.com/question/13715769

#SPJ4

Answer:

Incomplete dominance occurs when the dominant allele did not completely mask the effect of the recessive allele so that, the recessive allele could manifest some of its  traits.Therefore the offspring exhibits some phenotype which reflects the blends of the two traits.( four O'clock flower)

However, in co-dominance(e.g AB blood group) none of the dominant allele is completely dominant over one another.That is the two allele of the same gene are present in the same offspring.Therefore the alleles shows their dominating effects, in the offspring, but no blend of the alleles as in the incomplete allele.

Explanation:

Answer:

groundwater

Explanation:

because rain......

The pollution from the acid rain and factory could potentially end up in any of the listed options depending on the specific circumstances of the virtual lab.

Acid rain is rain that is more acidic than normal due to the presence of high levels of sulfuric and nitric acids. These acids form when certain pollutants, such as sulfur dioxide and nitrogen oxides, are released into the air and react with water, oxygen, and other chemicals in the atmosphere. Acid rain can occur naturally, but it is most commonly caused by human activities, such as the burning of fossil fuels (such as coal and oil) and the use of certain industrial processes.

Acid rain can have negative impacts on the environment, including damage to forests, lakes, and other ecosystems, and it can also have harmful effects on human health. Acid rain can be reduced by reducing the emission of pollutants that contribute to its formation, such as through the use of cleaner technologies and the implementation of emissions controls.

Learn more about acid rain, here:

https://brainly.com/question/22143130

#SPJ5

Answer:

A. mutation accumulation

Explanation:

I took the test.

Answer:

a

Explanation:

- modern classification is based on figuring out evolutionary relationships using evidence from living species, the fossil record, and molecular data. - the evolutionary history for a group of species. ... - each species in a clade has some traits that have changed from its ancestors over evolutionary time.

Hope This Helps! can i get brainliest lol

Answer: D. Budgeting is an important skill for teenagers to develop and practice before leaving home.

(It's correct on edge)

I hope this helped!

Good luck <3

Answer:

D.) Budgeting is an important skill for teenagers to develop and practice before leaving home.

Explanation:

Edge 2022

Answer:

A : Nondisjunction during meiosis

Answer:

Nondisjunction during meiosis, resulting in uneven distribution of chromosomes

Explanation:

I took the test and got it right good luck!

Answer:

greek word atomos which means invisible a- means not and -tomos means cut

Explanation:

Explanation:

Greek philosophers such as Democritus and Epicurus suggested that matter is made up of tiny indivisible particles called atoms. The word atom is derived from the Greek word atomos, which means indivisible or uncut.

A person that is homozygous recessive (cc) for the gene will have the illness. A person who is heterozygous (Cc) will be a carrier, but will be healthy. A person who is not a carrier and is healthy is homozygous dominant (CC) for the gene.

In the context of cystic fibrosis, the allele for the illness is represented by the lowercase letter 'c', while the allele for not having the illness is represented by the uppercase letter 'C'. Inheritance of the disease follows an autosomal recessive pattern, where an individual needs to inherit two copies of the recessive allele (cc) to have the illness.

Learn more about homozygous recessive

https://brainly.com/question/30434975

#SPJ4

Answer:

Here are the steps of primary succession in the correct order:

Exposed bare rock due to volcanic eruption or glacier

Pioneer species arrives (like lichen)

Small plants start to grow

Soil starts forming and mosses begin growing

Deciduous trees move in

Evergreen trees start growing

The heating in the Benedict's test and Millon test is carried out in a water bath to maintain a constant and controlled temperature. This ensures accurate and reliable results by minimizing external factors that could influence the reactions taking place.

The Benedict's test and Millon test are both chemical tests used to detect the presence of reducing sugars, such as glucose, in a given solution. These tests involve a reaction between the reducing sugar and a reagent, which undergoes a color change in the presence of the sugar.

Heating is an essential step in both tests because it helps to facilitate the reaction between the reducing sugar and the reagent. By applying heat, the rate of reaction increases, allowing for faster and more reliable results. However, it is crucial to maintain a consistent and controlled temperature throughout the reaction to ensure accuracy.

A water bath is used for this purpose. A water bath consists of a container filled with water that is heated to a specific temperature, typically around 70-100 degrees Celsius, depending on the test being performed. Placing the test tubes containing the reaction mixture into the water bath allows the solution to be heated uniformly and consistently.

The water bath provides a stable and controlled environment, preventing sudden temperature fluctuations that could affect the reaction rate and, consequently, the test results. It helps to maintain the reaction at the desired temperature for a specified duration, ensuring optimal conditions for the reaction to occur.

By carrying out the Benedict's test and Millon test in a water bath, scientists and laboratory technicians can achieve reliable and reproducible results, allowing for accurate identification of the presence of reducing sugars in a given solution.

For more such questions on temperature, click on:

https://brainly.com/question/30489532

#SPJ8

Answer:

A starches and proteins are both polymers.

According to the research, the correct answer is Option A. The statement "Bile contains enzymes for digestion." is incorrect regarding bill.

It is the product of hepatic secretion and is made up of bile salts, cholesterol, phospholipids and bilirubin, acting as an emulsifier for fatty acids.

In this sense, it is collected by the hepatic duct and in interdigestive moments it is stored in the gallbladder.

Therefore, we can conclude that according to the research, bile is secreted by the liver and is made up of water, composed of bile salts, proteins, it doesn't contain enzymes for digestion.

Learn more about bile here: https://brainly.com/question/29598028

#SPJ1

Answer:

Sanity and Temperature

Explanation:

They both determine the density of ocean water and density influences the circulation.

Answer: Salinity and temperature

Explanation:

Answer:

Vestigial Structures: Picture on top right (the ostrich)

Anatomical Evidence: Picture in the middle (the multiple animal legs)

Molecular Evidence: Picture on bottom left (the DNA)

Embryological Development: Picture on bottom right (the creature developing and growing)

Fossil Evidence: Picture on top left (the bones)

The process in the cell cycle that occurs before the nuclear membrane disassembles is the prophase. The cell cycle is the process that cells undergo to replicate themselves, leading to the formation of two daughter cells. The cell cycle has four stages: G1, S, G2, and M. The G1, S, and G2 phases are collectively known as interphase.

The cell undergoes the mitotic phase (M-phase) after the interphase, and this phase involves mitosis and cytokinesis. Mitosis is the process of dividing the nucleus, and cytokinesis is the process of dividing the cytoplasm. The nuclear membrane begins to disassemble during prophase, which is the first stage of mitosis.In the prophase stage of mitosis, the chromatin condenses into chromosomes, and each chromosome consists of two identical sister chromatids that are held together at the centromere.

The centrosomes move to the poles of the cell and begin to produce spindle fibers that attach to the centromeres. The nuclear membrane begins to disassemble, and the nucleolus disappears.The next stage is metaphase, during which the chromosomes line up in the center of the cell. During the anaphase, the sister chromatids separate and are pulled to opposite poles of the cell by the spindle fibers.

During telophase, the spindle fibers disassemble, and the nuclear membrane reforms around the two groups of chromosomes. The nucleolus reappears, and the chromosomes begin to uncoil back into chromatin. Finally, cytokinesis occurs, resulting in the formation of two daughter cells.

For more such questions on cell cycle

https://brainly.com/question/7196669

#SPJ8

Single nucleotide polymorphisms, often called SNPs (pronounced “snip”), are the most common type of genetic variation in humans. Each SNP that represents the difference in a single DNA building that block called as nucleotide.

A single nucleotide polymorphism occurs when a single nucleotide (the building block of DNA) is replaced by another nucleotide. These changes can cause disease and affect how your body responds to bacteria, viruses, drugs, and other substances. Also called SNPs. STR is useful genealogically to determine who you matched within a recent timeframe, say, the last 500 years or so. SNPs define haplogroups that go back far into the past. An example of a SNP is the substitution of G for C in the nucleotide sequence AACGAT to create the sequence AACCAT. Human DNA may contain many SNPs. This is because these variations occur at a rate of 1 in 100-300 nucleotides in the human genome.

To know more about single nucleotide polymorphism visit:

https://brainly.com/question/29022729

#SPJ1

The sequence of nucleotides that represents the primer sequence is  5' ACGUUAGG3'.

A primer for RNA is added. In RNA, U's are found where T's would typically be. The template strand is complementary to the RNA primer. T and U are complementary to A, but C and G are mutually exclusive. The complementary primer for the template strand from the second T from the 3' end is 5'-ACGUUAGG-3'.

A primer is a short nucleic acid sequence that acts as the starting point for the production of DNA. Primers are made of short RNA strands in living things. Primase, a subtype of RNA polymerase, is an enzyme that produces a primer before DNA replication can occur.

To learn more about Primer visit: https://brainly.com/question/15064573

#SPJ4

Answer:

Negative (Fourth Choice)

Explanation:

According to the question, it says "The flow of electrons is electricity." if the question talks about the electrons, then they are negative, because electrons are negatively charged.

the major difference between the position of producers and primary consumers in the food chain-

Primary consumers make up the second level of the food chain, while producers make up the third level of the food chain.

Primary consumers make up the last level of the food chain, while producers make up the first level of the food chain.

Primary consumers make up the first level of the food chain, while producers make up the last level of the food chain.

Primary consumers make up the second level of the food chain, while producers make up the first level of the food chain.

To know more about ( producers ) visit- https://brainly.com/question/14616889

#SPJ9

Answer:

Stroma.

Inner membrane.

Outer membrane.

Thylakoid membrane.

Intermembrane Space.

and Chlorophyll

Answer:

Israel borders Egypt, Jordan, Lebanon, Syria, and the Palestinian territories of West Bank and the Gaza Strip; it shares maritime borders with Cyprus.

Explanation:

yayy boom

Ingestion and degradation of extracellular antigens followed by their presentation by MHC class I molecules leads to a process called cross-presentation or cross-priming.

Cross-presentation is a crucial mechanism by which cells of the immune system, particularly dendritic cells, present exogenous antigens to CD8+ T cells, also known as cytotoxic T lymphocytes (CTLs). Normally, MHC class I molecules present endogenous antigens derived from intracellular pathogens or self-antigens. However, in certain situations, exogenous antigens from pathogens, tumors, or self-antigens can be taken up by antigen-presenting cells (APCs) and processed for presentation on MHC class I molecules.

The process of cross-presentation involves several steps. First, the extracellular antigen is engulfed by the APC through receptor-mediated endocytosis or phagocytosis. Once inside the APC, the antigen is degraded into smaller peptides by proteases in the endosomal or lysosomal compartments. These peptides are then transported into the cytosol, where they can bind to MHC class I molecules.

The binding of antigenic peptides to MHC class I molecules in the cytosol is facilitated by a specialized protein transport machinery. The peptide-MHC class I complex is then transported back to the cell surface, where it can be recognized by CD8+ T cells. This interaction triggers the activation of CTLs, leading to the immune response against the specific antigen.

In summary, ingestion and degradation of extracellular antigens followed by their presentation by MHC class I molecules is known as cross-presentation. This process enables the immune system to generate CD8+ T cell responses against exogenous antigens and plays a crucial role in immune surveillance and defense against pathogens, tumors, and self-antigens.

know more about extracellular antigens click here;

https://brainly.com/question/31214859

#SPJ11

The morphological types of viruses illustrated in Figure 13.1 are ultimately determined by A) the nucleic acid.

Viruses are the smallest infectious agents, consisting of an outer capsid and an inner core of nucleic acid (either DNA or RNA). Some viruses are surrounded by an envelope made up of phospholipids and glycoproteins, whereas others lack an envelope. The classification of viruses is done based on their shape. Several viruses can cause disease, and different kinds of viruses can cause different illnesses. Although they vary in size, shape, and complexity, all viruses have one thing in common: they need to invade a host cell to reproduce.

The figure mentioned above, Figure 13.1, shows different morphological types of viruses, including helical viruses, icosahedral viruses, enveloped viruses, and complex viruses. They are distinguished based on their shape and structure. Helical viruses, for example, have a spiral shape, whereas icosahedral viruses have 20 faces and 12 corners. The nucleic acid inside the capsid is what determines the ultimate shape and structure of a virus, as well as whether or not it has an envelope. Hence, the correct option is A: nucleic acid.

Know more about Morphological here:

https://brainly.com/question/30969679

#SPJ11

During fertilization, each parent contributes genetic material to the offspring. The genetic expression in the offspring that validates the genetic contribution by a parent is the presence of specific traits or characteristics that are inherited from that parent.

Genetic expression refers to the manifestation of genes in an individual's physical or observable traits. These traits can be influenced by both genetic factors and environmental factors. When an offspring inherits specific traits or characteristics that are known to be present in one of the parents, it validates the genetic contribution from that parent.

For example, if a child inherits their father's eye color or their mother's hair texture, these observable traits serve as validation of the genetic contribution by the respective parent. The expression of genetic traits in the offspring provides evidence of the inheritance of genetic material from each parent during fertilization.

To know more about genetic expression, visit:

https://brainly.com/question/30337899#

#SPJ11