Why is the tunica intima, the innermost layer of arteries and veins, made of epithelial cells?

The genetic makeup of an individual

Answer: D.Specific enzymes break down starch into simple sugars.

Explanation:

The digestion of food in animals and in humans begins with mouth. In the mouth the teeth grind and mix the food contents with the saliva. The saliva is a fluid which contains enzymes such as salivary amylase which breaks down the starch into simple sugar molecules. Hence, facilitates in the digestion process.

Starch digestion begins in the mouth with the enzyme salivary amylase breaking starch down into maltose. This process continues in the small intestine, where pancreatic amylase further breaks it down into glucose or simple sugars.

Starch digestion begins in the mouth where the enzyme salivary amylase, present in saliva, starts the breakdown of starch into maltose, a simpler sugar. This is known as the process of starch digestion. Thus, the correct answer to your question is 'Specific enzymes break down starch into simple sugars' (Option D). Digestion continues in the small intestine where another enzyme, pancreatic amylase, continues this process turning the maltose into glucose, the simplest form of sugar that the body can use for energy.

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Answer:

Which evidence supports the endosymbiotic theory?

Mitochondria and chloroplasts have a separate, simpler DNA from the nucleus DNA of a eukaryotic cell. These organelles' DNA resembles the DNA of prokaryotic cells.

Mitochondria and chloroplasts self-replicate by a cell division process similar to binary fission, which is the way prokaryotes divide.

The way mitochondria and chloroplasts synthesize proteins within the eukaryote cell is more similar to prokaryotes than to eukaryotes.

There are living examples of prokaryotes, like cyanobacteria, that share similar features with both mitochondria and chloroplasts of eukaryotic cells.

Observations of prokaryotic cells engulfing other prokaryotic cells and the engulfed cells becoming the organelles have been recorded.

Answer:

Equinoxes are important in marking for change in the season.

Explanation:

The equinox is a marking for change in the seasons. The moment is important because it is the time of year when the day and the night are of almost exactly the same length. It's the starting of autumn or spring, that marks the starting of that season. It takes place twice a year around September 23 and March 21.

Thus, Equinoxes are important in marking for change in the season.

c is the answer

plato

The process of joining nucleotides to build a new strand of DNA is carried out by an enzyme called DNA polymerase. DNA polymerase plays a central role in DNA replication, repair, and synthesis during processes like DNA transcription and DNA repair.

During DNA replication, DNA polymerase catalyzes the formation of phosphodiester bonds between adjacent nucleotides, thereby linking them together to form a new DNA strand complementary to the template strand. This process occurs in the 5' to 3' direction, meaning that nucleotides are added to the growing DNA strand at the 3' end.

DNA polymerase requires several components and cofactors for its activity. These include a template DNA strand, a primer (a short strand of RNA or DNA complementary to the template DNA), deoxyribonucleotide triphosphates (dNTPs) as substrates, magnesium ions (Mg2+) as cofactors, and other accessory proteins that assist in the replication process.

The mechanism of DNA synthesis by DNA polymerase involves several steps:

1. Initiation: DNA polymerase binds to the primer-template junction, forming a complex known as the DNA polymerase-DNA complex.

2. Elongation: DNA polymerase adds nucleotides to the 3' end of the primer strand in a stepwise fashion, using the template DNA strand as a guide. Each incoming nucleotide forms base pairs with the complementary nucleotide on the template strand, and DNA polymerase catalyzes the formation of a phosphodiester bond between the 3' hydroxyl group of the last nucleotide in the growing strand and the α-phosphate group of the incoming nucleotide.

3. Termination: DNA polymerase continues synthesizing the new DNA strand until it reaches the end of the template strand or encounters an obstacle. Once replication is complete, the newly synthesized DNA strand dissociates from the DNA polymerase-DNA complex.

DNA polymerases are highly accurate enzymes, with built-in proofreading mechanisms that help to maintain the fidelity of DNA replication by correcting errors in base pairing. However, errors can still occur, leading to mutations. In such cases, other DNA repair mechanisms come into play to correct the errors and maintain the integrity of the genetic material.

In summary, DNA polymerase is responsible for joining nucleotides to build a new strand of DNA during processes like DNA replication, repair, and synthesis. Its ability to catalyze the formation of phosphodiester bonds between nucleotides is essential for the accurate transmission of genetic information from one generation to the next.

The complete question is:

Which item is responsible for joining nucleotides to build a new stand of DNA?

Answer:

The domain is the least specific level of classification.

Explanation:

The levels of classification for life, or taxonomic rank, ordered from least specific to most specific, are:

We can remember the sequence of these terms using a mnemonic device (a memorable sentence, in which the first letter for each word corresponds with a level):

Did King Philip come over for gremlin soup?

There three domains are:

Bacteria and archea are both prokaryotes, meaning they do not have a membrane-bound nucleus.

Eurkarya, which includes the animal kingdom (and thus the human species), have a membrane-bound nucleus.

In biological taxonomy, the 'Domain' is the least specific level of classification. It covers a broad range of organisms, while 'Species' is the most specific level, referring to a certain kind of organism.

The least specific level of classification in biological taxonomy is Domain. Here's an explanation to help you understand:

Biology classifies all living things using a hierarchical system starting with the broadest categories and ending with the most specific. The order from least specific (broadest) to most specific (narrowest) is: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. So, a Domain includes a large number of different organisms, while Species refers to a specific type of organism. For example, in the 'Domain' category, you might have 'Eukarya' which covers all organisms with eukaryotic cells, including plants, animals, fungi, and protists. But in the 'Species' level, you get to a specific type, like 'Homo sapiens' (human beings).

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Answer:

Aerobic Cellular Respiration

Explanation:

Aerobic cellular respiration is the stepwise breakdown of glucose into CO2 and H2O through glycolysis, Kreb's cycle and The released energy is stored in the form of NADH and FADH2. These reducing powers drive the process of oxidative phosphorylation to produce as many as 36-38 ATPs. Hence, aerobic cellular respiration gives a long lasting supply of ATPs.

Most stars are main sequence stars as they spend about 90% of their lifetimes in this phase, which is confirmed by H-R diagram observations.

A is correct

The correct statement regarding the main sequence stars is: A) most stars are main sequence stars. Astronomical data confirms that about 90% of the stars observed in the sky are on the main sequence of an H-R diagram, which makes sense considering that stars spend the majority of their life in this phase, undergoing hydrogen fusion.

This is evidenced by the fact that stars are found in various spectral types ranging from O (most massive and most luminous) to M or L (least massive and least luminous) all aligned along the main sequence, representing different stellar masses.

Answer:

If your using science to sovle problems that means you used scientific method like testing, conclusions, or hypothesis

Explanation:

Solving problems with science means that to solve the problem the scientific method is used. This method includes observing, research, hypothesis , test and conclusion with a help of lot high level theory.

Without science there is not strict process to follow in order to resolve the problem end get to a solution.

Answer:

A

Explanation: