about one-half of leukocytes are __________.

Answers

Answer 1

About one-half of leukocytes are Neutrophils.

In humans, neutrophils (one half of the leukocytes), also known as neutrocytes or heterophils, comprise up 40% to 70% of all white blood cells and are the most prevalent form of granulocyte. They are a crucial component of the innate immune system, and depending on the species, they serve varied purposes.

Neutrophil-killer and neutrophil-cager subpopulations are differentiated from stem cells that are produced in the bone marrow. They have a short lifespan and are very mobile because they may access tissues that other cells or chemicals cannot. Segmented neutrophils and banded neutrophils are two types of neutrophils (or bands). They are a member of the family of polymorphonuclear cells (PMNs), along with basophils and eosinophils.

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Related Questions

using the terms homologous and analogous, identify which group of structure provides evidence for a common ancestor. explain

Answers

Answer:

Homologous structures.

Explanation:

Homologous structures provide evidence for common ancestry because the organs are similar in position, structure, and evolutionary origin in homologous but different in their function, while on the other hand, the analogous structures indicates that similar pressures on organisms can produce similar adaptations among organisms. so we can say that homologous structure provides evidence for a common ancestor of different organisms.

A segment of dna/chromosome containing the instructions for building a protein which will result in a trait is called a ___

Answers

Answer: A segment of dna/chromosome containing the instructions for building a protein which will result in a trait is called a GENE.

Explanation:

CHROMOSOMES are made up of two threads called chromatids joined at a point called the centromere.

In the chemical nature of chromosomes, each is made up of a protein framework which has a long molecule of DNA (deoxyribonucleic acid) coiled round it. A segment of DNA containing the instructions for building a protein which will result in a trait is called a GENE.

The GENES in the cell of a diploid organism contain all the necessary instructions for building up the organism.These instructions are written on a molecular scale.. Most genes contain information to direct the synthesis of specific proteins. Each such protein takes part in the development of a particular character.

A protein is made up of one or more chains of amino acids known as polypeptides. The sequence of bases in a DNA molecule determines the type of amino acid and the sequence in which they are arranged in a polypeptide chain.

A gene therefore is a sequence of triplets of the four bases which specifies the structure of a protein

help please!!!!! i need help!!

Answers

The answer should be A

Which of the following is not a consequence of lack of conservation?
A)
cost of additional wastewater treatment facilities
B)
water contamination from overirigation
C)
availability of land for use
D)
destruction of wildlife habitats

Answers

Answer:

C. ) availability of land for use

Explanation:

Not conserving water would not increase the amount of land available for use

Which statement best distinguishes aerobic from anaerobic respiration?
A. Only aerobic respiration involves fermentation.
B. Only anaerobic respiration occurs in the mitochondria.
C. Only aerobic respiration requires oxygen.
D. Only anaerobic respiration produces carbon dioxide.

Answers

Answer:

C. Aerobic respiration

Explanation:

Aerobic respiration occurs when oxygen is present

Anaerobic respiration occurs in the absence of oxygen. Anaerobic respiration is usually associated with fermentation process (eg Alchohol production)

The main difference between aerobic and anaerobic respiration is that aerobic respiration needs oxygen to occur, while anaerobic respiration does not. Option C. Only aerobic respiration requires oxygen.

What is cellular respiration?

Aerobic and anaerobic respiration occurrence depends on the presence or absence of oxygen. Option C. Only aerobic respiration requires oxygen.

Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.

What is Aerobic Respiration?

This type of respiration occurs in the presence of free oxygen. It involves a series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.

Aerobic Respiration occurs in mitochondria, and takes place in two steps or stages: Krebs cycle and electron transporter chain.

Glycolysis and Krebs cycle produce electrons. These electrons then travel along the electron transporter chain while releasing energy, and ATP is produced.

What is Anaerobic Respiration?

This is the type of respiration that occurs in the absence of free oxygen.

It is also a series of reactions by which the cell produces 2 ATP molecules by using pyruvate (product of glycolysis).

Anaerobic respiration can occur in two ways: lactic fermentation and alcoholic fermentation.

Lactic fermentation produces lactic acid and 2 ATPAlcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂

The whole anaerobic process occurs outside the mitochondria.

Options:

A). Only aerobic respiration involves fermentation. FALSE.

Anaerobic respiration involves fermentation.

B). Only anaerobic respiration occurs in the mitochondria. FALSE.

Aerobic respiration occcurs in mitochondria and anaerobic respiration occurs in the cytoplasm.

C). Only aerobic respiration requires oxygen. TRUE

Anaerobic respiration does not need oxygen.

D). Only anaerobic respiration produces carbon dioxide. FALSE

Alcoholic fermentation produces CO₂ too.

The correct option is C. Only aerobic respiration requires oxygen.

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can someone tell me if this is right plzz

Answers

Answer:

Maybe but double check

Explanation:

Earth’s largest ecosystems are the?

Answers

Answer:

The World Ocean

Explanation:

The World Ocean is the largest existing ecosystem on our planet. Covering over 71% of the Earth's surface, it's a source of livelihood for over 3 billion people.

^Hope this helps, Hazel^

The following diagram represents the reaction of methane with oxygen gas to form carbon dioxide and water.


The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs?
A.
The total number of particles in the system increases.
B.
The total number of particles in the system decreases.
C.
The total mass of the particles in the system stays the same.
D.
The total mass of the particles in the system increases.

no middle schooler awnser my questions

Answers

Answer:

C.

The total mass of the particles in the system stays the same.  sorry if i am wrong

Explanation:

_____ are proteins found on the surface of cells.
Histamine
Antibodies
Antigens
Leukocytes

Answers

Answer:

Histamine

Explanation:

Histamine works by binding to histamine receptors on the surface of cells.

Albinism is a lack of what protein ?

Answers

Angelman syndrome to be sure

Answer: Tyrosinase

Explanation: It's an enzyme that contains melatonin.

Erica uses a door knob to open a door. A door knob is an example of a wheel and axle. The knob of the door is the wheel and the shaft is the axle. As Erica turns the knob, the shaft is also turned, and the door opens. The knob of a door always has a larger radius than the shaft so that the distance over which the force is applied _______ in order to _______ the effort force needed to open the door.

A. Decreases, decrease
B. Increases, increase
C. Decreases, increase
D. Increases, decrease​

Answers

Answer:

D

Explanation:

The knob of a door always has a larger radius than the shaft so that the distance over which the force is applied increases in order to decrease the effort force needed to open the door. Thus, the correct option for this question is D.

What is Force?

A force may be defined as an instance of pushing or pulling on an object with mass. This causes an object to change its velocity. It is an external agent capable of changing a body's state of rest or motion. It has a magnitude and a direction, so it is a vector quantity.

According to the context of this question, a door knob is an example of a wheel and axle. The force that is applied on the knob of the door may effectively increase when it is operated by a person. This stimulates a reduction in the effort through which force is needed to open the door.

Therefore, the correct option for this question is D.

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4. Determine the phenotype for each genotype below if purple flowers are 1
dominant to white flowers: PP *
Purple
White
Pink

Answers

Answer:

Pw

Explanation:

If double P is dominant then Pw is dominan to white

What is the relationship between a cheetah and a deer

Answers

Answer:

prey-predator relationship: a cheetah trying to capture a deer so it can eat it.

Explanation:

hope this helps!

-lei

What is the key to most Al challenges?

Answers

Answer

In a general term, AI refers to computational tool that are able to substitute for human intelligence in the performance of certain tasks. This technology is currently advancing at the breakneck pace, much like exponential growth experienced by database technology in the late twentieth century. Databases have grown to become the core infrastructure that drives enterprise-level software over the coming decades is expected to be driven, at least in part, by AI

Explanation:

what are density dependent limiting factors? provide examples and describe how they affect a population.​

Answers

Answer:

china world was large puplation of ther country and dencity was multiple

Answer:

Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.

Which can be prevented with vaccines: bacteria,
viruses, or both?

Answers

Answer:

Both

Explanation:

But not all viruses can be stopped by vaccines as there are retro viruses which are impossible to stop

A sample of water containing somehow and bacteria was kept in a container. After some days it was observed that only snowball existed. What is the reason for the disappearance of the bacteria?

Answers

Answer:

LACK OF FOOD AND AIR FOR GASEOUS EXCHANGE

Explanation:

body cell wall consisting of two germ layers​

Answers

Germ layer, any of three primary cell layers, formed in the earliest stages of embryonic development, consisting of the endoderm (inner layer), the ectoderm (outer layer), and the mesoderm (middle layer).

A(n).........measures and records earthquakes.

Answers

it’s a seismograph ! ♡

What TYPE of nucleic acid is found in the Ebolavirus?​

Answers

Answer:

virion nucleic acid

The virion nucleic acid of Ebola virus consists of a single-stranded RNA with a molecular weight of approximately 4.0 x 10(6).

Explanation:

plzzz helpppp!!!! and answer the question ​

Answers

Answer:

DNA is being transcribed into mRNA

Explanation:

2) Choose the best answer.
An organelle where amino acids are joined to make proteins is a ___________.
A. cytoskeleton
B. lysosome
C. mitochondria
D. vacuole
E. ribosome

3) Choose the best answer.
The ________ provides structure and support to the cell.
A. vacuole
B. cytoplasm
C. cytoskeleton
D. lysosome
E. mitochondria

4) Choose the best answer.
An organelle which is involved in photosynthesis is the _________.
A. chloroplast
B. vacuole
C. cytoskeleton
D. ribosome
E. lysosome

Answers

Explanation:

2) E) ribosome .

3) c) cytoskeleton: The cytoskeleton is a series of fibers made from proteins. It provides structure to the cell and gives it its shape it its shape.

4) a) chloroplast

100 points

I do not get this at all any help would be nice


Assignment

Calorie Counting and Expenditure Exploration

Total Score: ____ of 30 points

Instructions: Use the data table that shows the estimation of the daily resting energy expenditure (REE) to explore how calorie requirements change as a person gets older. Follow the steps to calculate the REE for a person over time. Record your calculations in the table.

Decide to calculate the REE for a male or female.

Choose an adult weight.

Calculate the REE for the adult from age 18-29, 30-60, and over 60. Assume the adult maintains the same body weight at each age.


(Score for Question 1: ___ of 1 point)

Male or female

Answer:

(Score for Question 2: ___ of 1 point)

Weight

Answer:

Table

(Score for Table: ___ of 18 points)

Use the Table of the Estimation of the Daily Resting Energy Expenditure (REE) to determine the calculation used for each age range.

Age Range

Calculation from Table

Resting Caloric Expenditure

18-29



30-60



60+




Questions



(Score for Question 1: ___ of 5 points)

How does the REE change as a person ages?

Answer:

(Score for Question 2: ___ of 5 points)

What do these results indicate about how the body's metabolism changes over time?

Answer:

Answers

The way the REE changes how a person ages is through the reduction in fat-free mass.

What is resting energy expenditure?

This refers to the metabolism of the body that occurs when the body is at rest, due to homeostasis and biological equilibrium.

Hence, other factors that can lead to the aging process of a person based on this resting energy expenditure (REE) are the decrease in muscle mass, in relation to FFM and also the decrease in tissue metabolic rates.

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Where is the cerebellum located in the brain?

Answers

Answer:

The cerebellum (back of brain) is located at the back of the head. Its function is to coordinate voluntary muscle movements and to maintain posture, balance, and equilibrium.

Explanation:

- Eijiro <3

Answer:

The cerebellum (back of brain) is located at the back of the head. Its function is to coordinate voluntary muscle movements and to maintain posture, balance, and equilibrium.

Explanation:

What is DNA, Example of DNA, Why is DNA important to our life

Answers

Answer:

DNA is pivotal to our growth, reproduction, and health. It contains the instructions necessary for your cells to produce proteins that affect many different processes and functions in your body. Because DNA is so important, damage or mutations can sometimes contribute to the development of disease.

Short for deoxyribonucleic acid. The nucleic acid that is the genetic material determining the makeup of all living cells and many viruses. ... An example of DNA is the chain of basic materials in the chromosomes of the human cell.

Explanation:

brainliest?

DNA is deoxyribose nucleus acid. It’s the building block of what makes us who we are. Essentially it is a genetic code that decides how tall we are what color skin we have, what color hair, and eyes. Without dna we wouldn’t be the people we are it is what gives us our unique qualities

Describe two ways in which RNA differs from DNA.

Answers

Answer:

RNA contains the sugar ribose, while DNA contains sugar deoxyribose  type of ribose that lacks one oxygen atom) RNA has the nucleobase uracil while DNA contains thymine.

Explanation:

RNA- Sugar ribose, nucleobase uracil

DNA - Sugar deoxyribose, thymine

Difference between DNA and RNA:RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom).RNA has the nucleo base uracil while DNA contains thymine.DNA is functional is the transmission of genetic information. It forms as a media for long-term storage while RNA is functional is the transmission of the genetic code that is necessary for the protein creation from the nucleus to the ribosome.

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3
How did scientists determine Earth has layers?
OA. through the use of earthquake waves
OB.
through deep core drilling
Oc. through x-ray analysis
OD. through the use of magnetometers
Reset
Next

Answers

Answer:

The correct answer is - A. through the use of earthquake waves.

Explanation:

The interior of the earth can not be studied or seen by digging the hole, for that scientist normally use the movement of seismic waves, from earthquakes or nuclear test explosions, are reflected, slow down, sped up bent by passing through the different layers.

Waves behave differently as they move in different layers and their material helps scientists to learn and study the layers and their constituents. It explains that the Earth's interior has a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core.

Which of these statements is true of ecosystems? a animals do not travel from one ecosystem to another ecosystem b the total amount of energy in an ecosystem does not change c air cannot be used by organisms once the air moves out of the ecosystems d matter lost by one ecosystem is gained by the surrounding environment

Answers

Answer:

I think the answer is B. I think energy decreases as it moves up tropic levels when it is lost as the organisms from one level consume the organisms in the other.

Explanation:

It can't be A because animals do travel from one ecosystem to another. It's migration. It's not C because air can be used by organisms as once as the air moves out of their ecosystem because air is everywhere and the organisms need air to breathe and to live. D is definitely incorrect because matter can't be created or destroyed. Remember that an ecosystem is the organisms physical environment. I hope this answers your question.

D, matter lost by one ecosystem is gained by the surrounding environment

Explanation: Here's an explanation for why D is right and all the other ones are wrong.
D- when matter is lost from one ecosystem, it is often gained by another nearby ecosystem. For example, when leaves fall from trees in a forest, they decompose and release nutrients into the soil. These nutrients can then be taken up by plants in the same ecosystem or be transported by water runoff to other ecosystems, such as rivers or lakes. This process of matter transfer ensures the cycling of nutrients within and between ecosystems.
A- animals can and do travel from one ecosystem to another. Birds migrate between different habitats, and some animals spread seeds or pollinate flowers in multiple ecosystems. B- the total amount of energy in an ecosystem does change over time. Energy enters an ecosystem through photosynthesis, where plants convert sunlight into chemical energy. This energy is then passed on to other organisms through the food chain. However, energy is lost as heat during these transfers and eventually leaves the ecosystem, resulting in a decrease in the total amount of energy available. C- organisms rely on air for respiration, and the exchange of gases, like oxygen and carbon dioxide, occue between organisms and the air in the environment. While air moves in and out of ecosystems, organisms continuously utilize the air for their survival.

Due to its location, Hawaii does not have very many land birds. The Hawaiian honeycreepers are a favorite for many ornithologists. There are over 50 species of honeycreepers that can all be traced back to one ancestor. The level of diversity in an ecosystem can be determined by the frequency of speciation and extinction.

a) Describe speciation and identify two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to speciation.
b) If the Hawaiian honeycreepers became extinct, explain how the newly available niches could lead to speciation.

Answers

Answer:

In speciation, organisms evolved with the passage of time.

Explanation:

Speciation is the evolutionary process in which populations of species evolve with the passage of time to become different species from the original one.  Temporal isolation and gametic isolation are two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to occur speciation. The newly available niches could lead to speciation of that organisms that tolerate the Hawaiian climatic conditions when the extinction of Hawaiian honeycreepers occurs. The new organisms used the available resources such as food and space etc and increase its population.

What is the function of the Turbine in a power plant using fossil fuels?
O A. To recycle the steam back into water.
B. To generate the steam to turn the generator.
OC. To burn the fossil fuels, generating heat.
OD. To spin the generator using steam.

Answers

Answer:

D

Explanation:

The function of the Turbine in a power plant using fossil fuels is to spin the generator using steam.

What is a turbine?

Turbines are mechanical devices that are used to extract energy from fuel or air. These are the fans that run by the water or air and generate electricity. They are large fans and that move very fast.

Thus, the correct option is D.

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