Which reflex is NOT controlled by the brain stem?

A. urination

B. vomiting

C. sneezing

D. swallowing

E. salivating

The atoms are going through decomposition.They are breaking apart into the elements they are made of.

In a chemical reaction, substances (reactants) interact and their atoms form or break bonds, resulting in new substances (products). This happens as atoms strive to reach a stable state by filling their outermost electron shell, often through sharing, donating or receiving electrons which results in chemical bonding. In the provided example, two Hydrogen atoms and one Oxygen atom react to form a water molecule.

In a chemical reaction, bonds between atoms are made or broken, forming different molecules. In the beginning, the entities involved are known as reactants (like the 2 Hydrogen atoms and an Oxygen atom in your example). During the reaction, these atoms interact, forming or breaking bonds, and once the reaction is complete, we have new substance(s) called products, in your example, H2O (water).

Chemically, this is happening due to the behavior of electrons in the participating atoms. All elements are most stable when their outermost shell is filled with electrons (according to the octet rule), and the reactions happen to help atoms achieve this stable state. They can donate, accept, or share their electrons in a process called bonding. For example, in the case of water formation, the Hydrogen atoms share their electrons with the Oxygen atom, resulting in a stable arrangement fulfilling the octet rule for Oxygen and the duet rule for Hydrogen.

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the pictures don't show bro

It can be classified in the phylum chordata.

Phylum : chordata

Sub-phylum: Vertebrata

Division: Gnathostomata

Superclass: pisces (respiration occurs typically by gills)

Answer:

correct answer is "Cnidaria"

Explanation:

Answer: Option A Y-linked

Explanation:

As can be seen from the question, the affected father is producing an affected son and no affected daughter, thus this inheritance is Y linked.

True! the placenta functions as a fetomaternal

To prevent the rejection of transplanted organ or graft the patient is advised to take immuno-suppressant drugs. These immuno-suppressants are necessary to prevent any immune reaction against the graft. Immune cells such as T-cell and B-cells may recognize the graft as foreign and act against the markers on the surface of transplanted organ leading to rejection. To minimize such response of immune system against the graft immuno-suppressants are given. Ex: Corticosteroid - prednisolone.

Answer:

The LAS determines who would benefit most from a transplant.

The LAS is based on age, oxygen requirement, pulmonary function and the distance walked in 6 minutes.

Explanation:

on edge

ANSWER: 6

A codon is a sequence of 3 nucleotides that corrosponds to a specific amino acid. In the given sequence 6 triplets are formed. So the number of codons in the given mRNA is 6.

AGC UUA GGC UAA GGC UAC

  1       2       3        4       5      6

Answer:

The correct answer is option B) high specific heat.

Explanation:

Water is present all over the globe and covered the whole earth. The specific heat of the water is the highest of any other liquid. Specific heat is the amount of heat, must be absorbed or removed by the one gram of a substance to 1 degree Celsius change in temperature.

The specific heat of the water plays an important role as it can absorb a lot of heat without a significant increase in the temperature.

Thus, the correct answer is option - B) high specific heat.

Final answer:

Water's (option B) high specific heat is the reason it takes a long time to heat up and cool down, leading to its role in moderating environmental temperatures and aiding in the thermal regulation of warm-blooded animals.

Explanation:

The slow change in water temperature is due to water's (option B) high specific heat. Specific heat is the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius. For water, this amount is one calorie, and because water has the highest specific heat capacity of any liquid, it takes longer to heat up and cool down compared to other substances like sand.

Water's high heat capacity plays a significant role in moderating temperatures in coastal areas compared to inland regions. This is because water absorbs or releases large amounts of heat with little change in its own temperature, acting as a natural temperature buffer for the environment.

Furthermore, this property is utilized by warm-blooded animals to distribute heat more evenly in their bodies, similar to how a car's cooling system works, maintaining a more stable internal temperature.

Answer:

The answer is DNA replication and crossing over.

Explanation:

Both meiosis and mitosis are reproduction processes taking place in humans. But there is some difference between these two processes. In meiosis, parent cell produces four daughter cells which are not identical to each other.

In meiosis, when DNA replicates it produces four haploid daughter cells in which the number of chromosomes in half. Moreover crossing over and separation of chromosomes also occurs to produce sperms and egg cells. While in mitosis crossing over and DNA replication is absent.

A

The Earths axis is tilted approximately 23.5 degrees (which is the reason the Earth experiences seasons).

I did this one time ANd Its A can you mark me as brainlest really need it

Answer:

the first one

Explanation:

For the Data and Observation refer the image attached.

Data Analysis:  

Calculate the percentage of the cell cycle spent in each stage.

Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage

Conclusion:

Be sure to answer the following reflection questions in the conclusion of your lab report:

Based on your data, what can you infer about the length of time spent in each stage of the cell cycle?

The most time is used in the cell cycle is in the interphase.

What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.  

The longest phase of the cell cycle is the Interphase. Most of the total time of cell cycle is spent in the Interphase.  The reason for this being is that the cell prepares itself for its division, and also in this phase, the necessary protein for the duplication of organelles occurs.

the numbers of cells will get less.

1: Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example of prokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.

2: Eukaryotes represent a domain of life, but within this domain there are multiple kingdoms. The most common classification creates four kingdoms in this domain: Protista, Fungi, Plantae, and Animalia. The four kingdoms of living organisms are unique in their own way. You can go to a wikipedia page for more about this.

3: animal, human, bacteria, amoeba, and mushroom. (May be wrong)

4: organelle, cells, tissues, organs, organ systems.

5: In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, order, class, phylum, kingdom, domain, etc.

Hope this helps!

Prokaryotic cells are simple and small with DNA in a nucleoid, while eukaryotic cells are larger and complex with a  nexus and organelles. The four  fiefdoms of Eukarya are Animalia, Plantae, Fungi, and Protista, with Protista being  specially different. Taxonomy is the bracket of life forms, and there are four  situations of association from cells to systems.    

Comparison of Prokaryotic and Eukaryotic Cells  

Prokaryotic organisms include bacteria and archaea, which are simple, small, and warrant a  nexus and membrane- bound organelles. Eukaryotic organisms include  creatures,  shops, fungi, and protists they've complex cells with a  nexus and organelles. Prokaryotic cells are structurally simpler and  lower than eukaryotic cells. In prokaryotes, DNA is located in a region called the nucleoid, which is not enclosed by a membrane.

The Four fiefdoms of sphere Eukarya  The four  fiefdoms within sphere Eukarya are Animalia, Plantae, Fungi, and Protista. Kingdom Protista is special because it's a different group of eukaryotic organisms that aren't  shops,  creatures, or fungi, and can be unicellular or multicellular. They  frequently serve as a catch- all  order for eukaryotic organisms that don't fit into the other  fiefdoms.  

situations of Organization  Cellular  position- The  introductory unit of structure and function.  Towel  position- Groups of  analogous cells working together.  Organ  position-Multiple apkins working together as a unit.  System  position- Organs working together in systems.  situations of Organization for a Liver Cell  Liver Cell( Hepatocyte)  Liver Towel  Liver( Organ)  Digestive System  

What Is Taxonomy?

Taxonomy is the  wisdom of classifying organisms to construct internationally participated bracket systems reflecting their  connections and  furnishing information about participated characteristics. The  situations of bracket, from broadest to most specific, are Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

Answer:

The correct answer y C).

Explanation:

Chromatin is the association between DNA and proteins called histones.

Heterochromatin is highly condensed because in that state  the union between DNA and proteins is very strong and they are very close.

Euchromatin is less compact because in that state the union between DNA and proteins is weak and they are less stuck together.

Heterochromatin is not transcribed, whereas euchromatin is transcribed because when the union between DNA and histones is very strong, DNA is in a very compact state and the transcription machinery (RNA polymerase, transcription factors, etc.) cannot access the DNA to be able to transcribe it.

Chromatin, a complex of DNA and proteins, exists in two forms: heterochromatin, which is highly condensed, and euchromatin, which is less compact and actively transcribed.

The statement which most accurately describes chromatin is C) Heterochromatin is highly condensed, whereas euchromatin is less compact. Chromatin is a complex of DNA and proteins within the cell nucleus, and can be found in two different forms: euchromatin and heterochromatin. Heterochromatin is a form of chromatin that is densely packed and often associated with areas of the DNA that are not being actively transcribed into RNA. On the other hand, euchromatin is less condensed and represents regions of DNA that are actively being transcribed. So, heterochromatin is highly condensed, while euchromatin is less compact.

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i would have to say the answer is C. gill slits

Just like a Lego house is made of bricks, proteins are made up of lots of tiny building blocks. These building blocks are called amino acids. To build a protein, first the amino acids are connected into long chains.

Sorry if this doesn't help or if its wrong.

Credit: Google Search

Answer:

Option (1) and (3)

Explanation:

The ocean covers a large portion of earth and the temperature of the ocean rises due to the high absorption of heat. This is because of the higher amount of incoming solar radiation and the increasing green house gases in the atmosphere of the earth.

This increasing temperature of the ocean has certain negative effects.

Due to the increasing ocean temperature, the ocean water will become warm that will enhance the temperature of the polar water, as a result of which the glaciers and ice caps of the polar region will melt.

The increasing ocean water temperature will lead to the evaporation of water into the atmosphere, which will eventually cause rainfall. This will cause flooding in the low-elevated coastal areas. There occurs increasing frequency of major storms.

Thus, the correct answers are options (1) and (3).

Answer:

the flooding of low-lying coastal areas

option b

Explanation:

edge 2024!

False! Greywater is easier to treat and process than blackwater.

It is a false statement that "Blackwater is cheaper and easier to process than greywater."

The term black water refers to waste water that emanates from the sewers such as from bathrooms, kitchens, toilets etc. Grey water is water that is obtained from sinks and from the washing machine which is less in pathogen content.

It is easier to treat grey water than black water since grey water contains less microbial load than grey water.

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What time period lasted for more than half of the hypothesized history of the Earth?

d. Precambrian

Your awnser in D] Precambrian. Hopefully i could help :)

Carrying capacity is as the maximal load of a particular environment.  

population density: the number of individuals per unit area or volume

Final answer:

Carrying capacity is the maximum size of a population that can survive using available resources, while population density refers to the number of individuals per unit area. Carrying capacity can vary, while population density describes how individuals are distributed within an area.

Explanation:

Carrying capacity refers to the maximum size of a population that can survive using the available resources, while population density refers to the number of individuals per unit area. Carrying capacity can vary up or down depending on the availability of resources, whereas population density describes how individuals are distributed within a given area. For example, a population of deer in a forest may have a carrying capacity determined by the amount of food and shelter available, while population density would describe how closely the deer are distributed throughout the forest.

E is the  correct answer or its b

The substance composed of multiple globular molecules polymerized to form long chains or filaments is Actin. It is one of the key structural proteins in living cells.

The answer to the question, '________ is composed of multiple globular molecules polymerized to form long chains or filaments' is Actin (Option A). Actin is a multi-functional protein that plays a vital role in various cellular functions. Actin is a family of globular proteins found in cells, playing a vital role in various cellular processes, especially in muscle contraction.

Actin filaments are a key component of the cytoskeleton, providing structural support to the cell and enabling cell movement.

Actin filaments are involved in cell division, cell shape maintenance, and intracellular transport.

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The correct answer is option D, that is, they both contain genetic material.  

HIV or human immunodeficiency virus refers to a retrovirus, this signifies that it comprises of single-stranded RNA as its genetic substance in comparison to the double-stranded DNA carried by human cells.  

The bacteriophage refers to a virus that infects bacteria and at certain times destructs them by the process of dissolution or lysis. The phages or bacteriophages comprises a head formed of protein, an inner core of nucleic acid, which can be either RNA or DNA, and a hollow protein tail.  

All you need to do is write adout why you look,sound and act the way you do.

In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of speech.

In cases of head injuries, the cerebrum, which is the largest part of the brain responsible for higher cognitive functions, may be affected. This type of injury can cause a loss of or impaired speech.

Speech impairment can manifest in different ways depending on the severity and location of the injury. Some possible speech-related issues that may arise from cerebrum injury include:

1. Difficulty in finding the right words or forming coherent sentences: Damage to specific areas of the cerebrum, such as Broca's area, can lead to difficulties in speech production. This can result in a person struggling to express themselves clearly or finding it challenging to speak fluently.

2. Problems with understanding or comprehending language: Damage to areas like Wernicke's area can affect a person's ability to understand spoken or written language. They may have difficulty processing and interpreting words, leading to confusion or misunderstanding.

3. Slurred speech or changes in speech patterns: Injury to the cerebrum can impact the muscles involved in speech production, leading to changes in speech patterns. This can manifest as slurred or distorted speech, making it hard for others to understand the person.

It's important to note that the cerebrum is responsible for many other functions besides speech, such as memory, attention, and perception. Therefore, head injuries affecting the cerebrum can have a wide range of effects beyond speech impairment.

In conclusion, a head injury affecting the cerebrum can cause a loss of or impaired speech due to damage to specific brain areas responsible for language processing and production. It's crucial for individuals with such injuries to seek medical attention for proper diagnosis and treatment.

Based on a soil texture triangle, the kind of soil present in the sample is loamy sand.  

Loamy sand refers to soil comprising majorly of sand, silt, and a smaller portion of clay. Loamy is very fine sand comprising 50% or more of very fine sand. This soil is smooth to touch because of the predominance of extremely fine grains. All the kinds of loamy sands vary from sandy loams as loamy sands comprise more silt separates and smaller constituents of clay and sand.  

Cells require energy to power their biochemical processes such as transcription and translation processes. The nutrients taken in by cells are broken down and the energy in these bonds is used to create ATPs, the energy currency of the cells.

During the breakdown of these nutrients for energy, in a process called cellular respiration, the byproducts produced need to be excreted from the cell. This is because the accumulation of these byproducts may be toxic to the cell.

The correct answers are:  

3) Smoke coming out of the top of it

When a volcano starts erupting there is a mix of mostly water, carbon dioxide, and sulfur gases that come out from it; this is called "smoke"

4) The ground swells or vibrates

Before an eruption, a material called "magma" moves beneath the volcano to a zone called a "magma chamber"; these movements create seismic vibrations and ground swelling.

Although there is an increased emission of heat and gas from the volcano, the temperature of the water may not be an assured sign of an eruption.

The first one is correct because all of the other definitions give an example of a change in the environment not the animal in question.

Hello there! The answer is A trait that helps an organism survive and reproduce in its environment.

An adaptation is something an animal develops naturally to better live in its environment, making A your best option.

It's not B or D because adaptations are the animal's changes, not the environment. It's not C because although how they obtain food may be part of it, it is not the full thing.

I hope this was helpful and answered your question, have a great rest of your day!

im pretty sure it is true

Answer:

it is TRUE!!!!!

Explanation: