Diisopropylfluorophosphate (difp, another name for diisopropylphosphofluoridate, dipf) inactivates chymotrypsin by covalently modifying serine-195. this occurs because?

Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles

Explanation:

Answer:

All of the above.

Explanation:

Technically, all of the answers stated are true.

i hope this helps and good luck!

Answer:

v = 5 m/s

Explanation:

Given that,

The distance covered by a runner, d = 400 m

Time, t = 80 sec

We need to find the runner's average speed. It is equal to total distance covered divided by time taken. It can be given by:

\(v=\dfrac{d}{t}\\\\v=\dfrac{400\ m}{80\ s}\\\\v=5\ m/s\)

So, the runner’s average speed is 5 m/s.

If you are observing worms, ants, and caterpillars, you are studying a biological species. Thus, the correct option is B.

Biological species may be defined as a cluster of organisms that can reproduce with one another in nature and produce fertile offspring.

A Community may be defined as a group of individuals belonging to different species living in the same area. A Population may be defined as the number of the same species living in the same area at a particular time.

Here, worms, ants, and caterpillars are organisms of different species with different characteristics such as mode of nutrition, reproduction, and response to the environment.

The biological species are considered as an integral part or component of an ecosystem. The greater the biodiversity in an ecosystem, the greater the stability of the species within that ecosystem.

Therefore, if you are observing worms, ants, and caterpillars, you are studying a biological species. Thus, the correct option is B.

To learn more about Biological species, refer to the link:

https://brainly.com/question/985104

#SPJ5

The input energy converter is Student's digestive system and the two output energies involved in a student eats a hamburger are mechanical energy, thermal energy.

In the context of a pupil ingesting a hamburger, allow perceive the enter energy converter and output energies concerned with this technique.

The enter power converter on this scenario might be the pupil's frame, in particular the digestive system. The act of eating includes the conversion of capability power within the food into chemical strength thru the technique of digestion. The digestive device breaks down the complicated molecules inside the hamburger into much less difficult paperwork that may be absorbed and utilized by the body.

As for the output energies, actually one in every of them is mechanical electricity. When the student chews and swallows the hamburger, the digestive device converts the chemical power received from the meals into mechanical power to help in propelling the meals thru the digestive tract.

Another output power is thermal electricity. During digestion, the chemical reactions that stand up to break down the meals launch warmth power. This thermal electricity contributes to preserving the student's body temperature and is eventually dissipated into the surroundings.

To summarize:

Input energy converter: Student's digestive system

Output energies:

Mechanical energy - worried with the method of chewing and propelling food via the digestive tract.

Thermal energy - is launched as a byproduct of the chemical reactions for the duration of digestion, contributing to body temperature upkeep.

Read more about energy transformations at:

https://brainly.com/question/3111563

The true statement about Sertoli cells is that they provide structural support and nourishment to developing sperm cells. The correct answer is: None of the provided choices are true of Sertoli cells.

They are not directly involved in the movement of sperm, which is primarily facilitated by cilia and smooth muscle contractions in the ducts. The pressure of seminal fluid produced by the prostate also does not involve Sertoli cells.
Sertoli cells are essential for supporting spermatogenesis, providing nourishment, and creating a proper environment for the developing sperm cells.

They do not directly involve in passive flow of sperm due to gravity, movement of the sperm by cilia, peristaltic contractions of smooth muscle in the lining of the duct, or the pressure of seminal fluid produced by the prostate. Hence, none of the above option re correct.

To know more about  Sertoli cells refer here:

https://brainly.com/question/31449194

#SPJ11

The red pulp of the spleen is where the filtration and removal of old or damaged red blood cells and foreign particles from the blood occur. This process is known as phagocytosis and is performed by macrophages located in the red pulp. The red pulp also serves as a site for the storage of platelets and the production of new red blood cells in some animals. The white pulp of the spleen, on the other hand, is involved in immune functions, such as the production of antibodies and the activation of T-cells in response to infections or other foreign substances.

Answer:

C

Explanation:

something needs to be polar to diffuse through the plasma membrane, which the first aa is on the outside

Chromatin is made up of DNA, RNA, and protein, and it is the substance that makes up chromosomes. In cells, chromatin can be found in two different forms: euchromatin and heterochromatin.

Heterochromatin is the most highly condensed form of interphase chromatin. When chromatin is tightly packed, the DNA is compacted and inaccessible to the cell’s machinery, which can make it difficult for genes to be expressed.

Heterochromatin is a tightly packed, condensed form of chromatin that can be observed in the nucleus of eukaryotic cells during interphase. Heterochromatin is tightly packed and inaccessible to the transcription machinery, which makes it difficult for genes to be expressed. As a result, heterochromatin is typically associated with genes that are permanently silenced, such as those that are located at the telomeres or centromeres of chromosomes.

In contrast to heterochromatin, euchromatin is a less condensed form of chromatin that is more accessible to the transcription machinery.

Euchromatin is associated with genes that are actively transcribed and expressed. In general, heterochromatin is found in the nucleus of eukaryotic cells and is more highly condensed than euchromatin.The "beads-on-a-string" form of chromatin refers to the structure of DNA as it is packaged in chromatin. This structure is formed by wrapping DNA around histone proteins to form nucleosomes, which are often described as "beads" on a "string" of DNA. The "beads-on-a-string" structure is a less compact form of chromatin that is more accessible to the transcription machinery than heterochromatin.

To know more about Chromatin visit :

https://brainly.com/question/30938724

#SPJ11

A biologist wants to use this method for a population census of desert mice. This will work if the mice are recaptured in the same location using the same trapping methods.

Kangaroo rats, jerboas, and hopping mice can all endure in arid environments. They live in enormous burrows, have well-developed hind legs, and hardly ever consume water.

Pocket mice have adapted to live in dry climates with a variety of foods. By residing at night, they might be able to avoid the stifling desert heat. These mice spend the day in cool, underground tunnels and eat at night. Their sand-colored fur allows them to blend in with their surroundings and avoid predators.

Only once a year do desert mice breed, and they frequently have three young. Desert mice reach sexual maturity at the age of 10 weeks. Populations significantly increase after a fire, a good downpour, and increasing vegetation cover. The desert mouse inhabits all of Australia's semi-arid and arid regions.

Learn more about pocket mice:

https://brainly.com/question/31847210

#SPJ4

The complete question is:

Biologists often determine population density by capturing animals and marking them for later identification upon recapture. A biologist wants to use this method for a population census of desert mice. This will work if the __________.

Answer:

D. Some traits in certain embryos disappear as the embryo develops

Explanation:

I don't know how I would explain it, but I can list some of the things that disappear such as...  Gill slits, and tails. Hope this helped :D

Answer:

D. Some traits in certain embryos disappear as the embryo develops.

Explanation:

Embryology is the study of embryos. Embryos of different animals such as mammals, birds, fish, reptiles etc. look alike that is they are very similar. Many traits of one type of animal appear in the embryo of another type of animal.

Answer:

Cells provide six main functions. They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.

Explanation:

Answer: Explanation: Human behaviour is a social perspective and hence nurturing has a pivotal role in shaping the character of a human being. Nature however is more prominent in shaping physical characteristics of an individual.

HOPE THIS HELPS ❤✌

Nature (Genetics) of someone decide the higher and lower limit or the extremes of a characteristics and nuture (environment and upbringing) plays at intervals that limit to decide the particular characteristics.

Nurturing care not solely promotes physical, emotional, social and psychological feature development, it additionally protects young youngsters from the worst effects of adversity.

So, this can be why nurture plays nice role.

learn additional concerning nurture here:

https://brainly.com/question/26988071

#SPJ2

Answer:

temperature and precipitation

the mutation rate for this gene is 0.02%. This is because out of the fifty-million sperm that were examined, only 1000 had mutations in the specific gene.

To provide further explanation, mutation rate refers to the frequency at which mutations occur in a given population or gene. In this case, the mutation rate is calculated by dividing the number of mutations found (1000) by the total number of sperm examined (50 million) and multiplying by 100 to get a percentage. Therefore, the mutation rate for this gene is 0.02%.
that the mutation rate for this specific gene is 0.002%.


1. First, you have the total number of sperm examined, which is 50,000,000.
2. Then, you have the number of sperm with mutations found in the specific gene, which is 1,000.
3. To find the mutation rate, divide the number of mutations found (1,000) by the total number of sperm examined (50,000,000).
4. This results in 0.00002.
5. To express this as a percentage, multiply the decimal value by 100: 0.00002 * 100 = 0.002%.

So, the mutation rate for this specific gene is 0.002%.

To know more about mutation rate , visit

https://brainly.com/question/29423701

#SPJ11

Heat fixing kills the bacteria in the smear, firmly adheres the smear to the slide, and allows the sample to more readily take up stains.

Why is heat fixation necessary for straining ?
Heat fixation inactivates viral and bacterial pathogens and is compatible with downstream MALDI mass spectrometry tissue imaging - PMC.

In this method heat is used to help drive the primary stain into the waxy cell walls of these difficult-to-stain cells. The use of heat in this method has been the reason that this technique is called the “hot staining” method.

Heat fixing is used to kill the bacteria on the slide, so the bacteria does not spread. During the negative stain the cells are not stained, the background is so there is no need to kill the bacteria so they do not smear like they would on the direct stain that does stain the cells.

To learn more, heat fixation click the link below:
https://brainly.com/question/28222040

#SPJ4

Answer:

A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA and protein molecules required by an organism.

Random mutation is not an mechanism of evolution .

Five important factors for evolution mechanism are Natural Selection, genetic drift, gene flow, mutations, and non random mating. Through these process members of a population differs greatly in their traits.

Natural selection is the most important mechanism of evolution, other evolutionary mechanisms can also change the frequencies of traits in populations. These include mutation, genetic drift and migration. Natural selection have 5 basic and major components These are Variation (individual have variation in appearance and behavior ), Inheritance( traits are continuously passed on from parent to offspring), Selection, Time and Adaptation.

To learn more about Natural selection  , here

brainly.com/question/9830102

#SPJ1

Since it may dissuade or prevent larger fish from predation, the stickleback's spine is an adaptation that gives it an advantage in habitats with huge fish.

Sticklebacks have the ability to lift their spines when threatened, which makes it harder for a predator to consume the fish. The stickleback's chances of surviving and reproducing in habitats with huge fish and a high danger of predation can be improved by this protective mechanism.

The same adaptation, nevertheless, may be harmful in areas where dragonfly larvae are present. Sticklebacks are among the little fish that dragonfly larvae, which are aquatic predators, eat. The stickleback's spine adaption therefore depends on the particular habitat and the kinds of predators there, as well as whether it is advantageous or disadvantageous.

Learn more about stickleback's Visit: brainly.com/question/27631593

#SPJ4

The examples of environmental influences

There is speculation that environmental factors can affect behavior both directly and indirectly. The indirect causal mechanism illustrates how cognitions that are specific to a behavior play a mediating role in the influence of the environment on behavior. A direct influence shows how the environment automatically and unconsciously affects behavior.

Certain behavioral and personal characteristics are hypothesized to modify the causal pathway (i.e., inducing either the automatic or the cognitively mediated environment – behavior relation). The EnRG framework also uses an energy balance approach, which encourages an integrated investigation of factors influencing nutrition and exercise.

To learn more about Environmental influences :

https://brainly.com/question/503225

#SPJ4

The subdivisions of the autonomic nervous system are the parasympathetic  division and sympathetic  division.

In general, autonomic nervous system which is also known as visceral efferent nervous system. They helps to supply motor impulses to cardiac muscle and to glandular epithelium. Which is further subdivided into sympathetic and parasympathetic divisions.

Hence, two major divisions of the autonomic nervous system are classified as sympathetic division and the parasympathetic division.  Also, sympathetic nervous system helps to control body's reaction to fight or flight , on the other hand parasympathetic nervous system helps to control your body's response during times of rest.

To learn more about autonomic nervous system , here

brainly.com/question/28432269

#SPJ4

Answer:

You have a trait (plant color) and you have two possible outcomes for it (purple and white). You know that some alleles for white were present in one of the parent plants, so you know they must be present in the offspring too. But they're expression is covered up by the purple alleles from the other plant, so you know that purple is dominant to white.

c:

Answer:

right on Plato/ Edmentum

Explanation:

vagina               urethra

egg                   sperm

ovary                 testis

fallopian tube    vas deferens

The correct reproductive structure is based on their function and the system to which they belong are:

In both males and females, a reproductive system is a group of internal and external organs that cooperate to allow for reproduction. The organs, glands, and tissues involved in childbirth (children).

The ovaries, fallopian tubes, uterus, cervix, and vagina are all parts of the female reproductive system. It includes the pen-is, prostate, and testes in men.

Therefore, the correct option is

To learn more about the reproductive system, refer to the below link:

https://brainly.com/question/7464705

#SPJ2

The cellular function of carbohydrates and lipids which should be placed in the shared section of the Venn diagram is that they store energy.

This is defined as the ability to do work and the major biomolecules which store energy are carbohydrates and lipids.

This shared property between the two molecules is why it should be placed in the shared section of the Venn diagram.

Read more about Energy here https://brainly.com/question/13881533

#SPJ1

There is lag phase before growth occurs at a level that is visible in the broth.

Slack stage is the most ineffectively perceived development stage, basically in light of an absence of information that depict the hidden physiological and sub-atomic cycles.

It has been expected that slack stage permits the variation expected for bacterial cells to start to take advantage of new natural circumstances. This interaction could incorporate the maintenance of macromolecular harm that collected during fixed stage  and the blend of cell parts vital for development.

In any case, these stay speculative conceivable outcomes, as the accessible physiological information essentially show that slack stage microscopic organisms are metabolically dynamic. Thusly, there are presently no physiological or biochemical models to characterize slack stage.

Learn more about Lag phase here:

https://brainly.com/question/14306164

#SPJ1

Answer: From carbon dioxide and water

Explanation:

Glucose is a type of carbohydrate which is produced as a product of the biochemical reaction that is photosynthesis. Carbon dioxide and water are the reactants used for the synthesis of glucose. The carbon dioxide is obtained from the atmosphere and water from the roots. Carbon, hydrogen, and oxygen are the elements that are present in the carbohydrate through reactants named carbon dioxide and water.

Without bacteria, which are unicellular creatures with cell walls but no organelles and an ordered nucleus, including those that might spread illness, they would not be able to create muscle.

A single cell makes up a unicellular creature, also referred to as a single-celled organism, as opposed to a multicellular organism, which is made up of numerous cells. Prokaryotic and eukaryotic organisms are the two broad categories into which all organisms fall.

The majority of prokaryotes are unicellular and divided into the groups of bacteria and archaea. While most eukaryotes have many cells, others do not, including protozoa, single-celled algae, and single-celled fungi.

While certain prokaryotes are specialized cells with unique tasks, they do not always live in colonies. Together, these organisms must carry out all necessary life activities for each cell to survive. However, even the most basic multicellular creatures have cells that depend on one another.

Therefore, Without bacteria, which are unicellular creatures with cell walls but no organelles and an ordered nucleus, including those that might spread illness, they would not be able to create muscle.

To learn more about bacteria, refer to the link:

https://brainly.com/question/30004230

#SPJ1

Answer:

UUAGUACCU

Explanation:

A ---> U

T ---> A

C ---> G

it's been a while since I did this stuff but I'm 99% sure it's correct

The replicate strand of the given strand of DNA is TTAGTACCT as per the complimentary base pairing in DNA.

DNA is a hereditary material  which is present in human beings as well as all other living organisms.  Every cell which is present in an organism's body has DNA  which is the same. Most of the DNA is situated in the cell's nucleus  and small amount of it can be found in the cell's mitochondria as well.

Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.

DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate  sugar are together called as nucleotides.

Learn more about DNA,here:

https://brainly.com/question/23575193

#SPJ2

Birds, like airplanes, must be lightweight as well as powerful. They can fly only because evolution slimmed down their entire anatomy from their reptilian ancestors. Over time, the bones of birds have become lighter and, in the case of many "finger bones," some have disappeared altogether.