What’s the following have contributed to historical increases in the global human population?
A.) increases in the number of deaths
B.) unavailability of clean water
C.) decreases in the birth rate
D.)Advances in hygiene

Answers

Answer 1

Answer:

D

Explanation:

people take it into account that the environment is fine for growing children hence giving birth


Related Questions

If the complex cholesterol- HRP would not be commercially available, use the knowledge you learnt and internet to determine an alternative way for detecting cholesterol.

Answers

Answer:

Classical chemical methods, enzymatic assays, gas chromatography (GC), liquid chromatography (LC), and mass spectrometry (MS)

Explanation:

Classical chemical methods, enzymatic assays, gas chromatography (GC), liquid chromatography (LC), and mass spectrometry (MS) are the alternate methods used for the detection of cholesterol. These methods are used when HRP would not be commercially available for the analysis or detection of cholesterol in the patient's body so these methods can be used for the purpose of detection of cholesterol.

It was found that the C4 protein promotes synaptic pruning during brain development in the teenage years. This is a normal process in brain development that is important for removing unnecessary connections between neurons and establishing a mature brain structure. However, high expression levels of a certain allele of C4 can lead to too much pruning, which may promote the onset of schizophrenia. The variation observed at the C4 gene which leads to the greatest increase in risk was found to cause a 25% increase in the risk of developing schizophrenia. The baseline risk in the population is 1%. What is the risk of an individual with this variant developing the condition?a. 0.25%.
b. 1.25%.
c. 25%.
d. 26%.

Answers

Answer:

b. 1.25%

Explanation:

Variations observed in C gene has increase in risk of 25% to develop schizophrenia. It is a kind of an abnormality in which a person interprets reality unrepresentative. The baseline risk in population is 1% then there is 1.25% risk associated with an individual to develop this condition.

Antibacterial sprays are often used when cleaning kitchen counter tops. If the same antibacterial spray is used continuously, why will some bacteria survive and reproduce?

A) Bacteria have developed resistance to the spray
B)The spray only prevents the bacteria from multiplying.
C)New species of bacteria are formed when the spray is used.
D)Most of the sprays are designed to kill only one type of bacteria.

Answers

Answer:

A

Explanation:

D) most of the sprays are designed to kill only one type of bacteria

Which is not a kingdom in the Eukarya domain?
O A. Animalia
O B. Bacteria
O C. Plantae
O D. Protista​

Answers

Answer: b bacteria

Explanation:

Answer:

Protista

Explanation:

Protists are uni-cellular and don’t consist of a nucleus which makes them prokaryotic, not eukaryotic.

When you pushed the diaphragm up what change occurred in chest cavity pressure? Explain how this change in chest cavity pressure affected the lungs.

Answers

Answer:

positive pressure

Explanation:

Exhalation is a passive process during which the intercostal muscles and the diaphragm relax. The ribs move downward and inward, while the diaphragm rises. This movement causes the chest to decrease in size and positive pressure to build inside the chest cavity. The positive pressure pushes air out of the lungs.

Which is not true regarding the mammalian cardiac cycle

Group of answer choices

both atria contract at roughly the same time, and then the ventricles

relaxation, or filling, phase is called diastole

the semilunar valve is the usual pacemaker

contraction, or pumping, phase is called systole

Answers

the semilunar valve is usual peacemaker

What is the role of an indicator? Predict how the glucose test strips and iodine would react with the following foods:

Grape
Tomato
Summer squash
Orange
Bell pepper

Answers

Answer:

Tomato

Explanation:

The density of protists living in the hay infusion is ______________ than the regular pond water.

a. significantly lesser
b. lesser
c. about the same
d. greater
e. significantly greater

Answers

Answer:

a. significantly lesser

Explanation:

The density of protists living in the hay infusion is significantly lesser than the regular pond water because protists likes to live in aquatic or any water bodies. Some protists float on the surface of the water making their own food like plants by using the process of photosynthesis. Aquatic environments are ideal environment for protists, which have cilia and flagella that allows them to move in the water in search of food..

WILL MAKE BRAINLIEST

Fill in the blank below with the word that best completes the sentence.
Natural selection leads to____
a process of change in a population over time.

Answers

Answer:

it is evolution

hope it helps

the answer is evolution

Match the organelle (1-4) with the correct description (5-8). 1) mitochondrion 5) synthesizing molecules 2) centriole 6) liquid in cell 3) endoplasmic reticulum 7) provides cell with energy 4) cytosol 8) aids the formation of the spindle apparatusA) 1 and 5, 2 and 6, 3 and 7, 4 and 8 B) 1 and 7, 2 and 6, 3 and 8, 4 and 5 C) 1 and 7, 2 and 8, 3 and 5, 4 and 6 D) 1 and 8,2 and 5, 3 and 6, 4 and7 E) 1 and 6, 2 and 8, 3 and 5, 4 and7

Answers

Answer:

C) 1 and 7, 2 and 8, 3 and 5, 4 and 6  

Explanation:

1 and 7: 1) mitochondrion; 7) provides the cell with energy

The mitochondrion is the organelle that produces the energy that the cell needs for its functions. It synthesizes adenosine triphosphate (ATP), which storages large quantities of energy in its bonds.

2 and 8: 2) centriole; 8) aids the formation of the spindle apparatus

The centrioles have a crucial role during mitosis. They form the spindle apparatus that attaches to the chromosomes, moving them to the opposite poles of the cell.

3 and 5: 3) endoplasmic reticulum; 5) synthesizing molecules

The endoplasmatic reticulum is a continuous membrane connected to the nuclear membrane. There are two types, the Rough Endoplasmatic Reticulum (RER) and the Smooth Endoplasmatic Reticulum (SER). The first one synthesizes proteins, while the second one synthesizes lipids.

4 and 6: 4) cytosol; 6) liquid in the cell

The cytosol is the liquid that is inside the cell. It is mostly water, but it also has ions and molecules. It is important for the transport of substances.

The correct match between organelles and their description is - Option C.  1 and 7, 2 and 8, 3 and 5, 4 and 6.

In the cell, there are many organelles that perform different and specific functions essential for the cell to survive. These organelles help in synthesizing molecules, energy production, cell division, and many others.

Mitochondrion: it is a cell organelle that is the site of cellular respiration, which is a process that breaks the sugar molecule and releases a high amount of energy in the form of ATP. Therefore, it is known as the powerhouse of the cell. Thus, correctly matches with 7) provides the cell with energyCentriole: It is organelles that help to form the spindle during the cell division in the cell that makes the region at the poles where spindle fibers form. Thus, it correctly matches with 8) aids the formation of the spindle apparatus.Endoplasmic reticulum: It is organelles that synthesize various molecules such as hormones and other protein molecules, Rough ER has ribosomes attached to it that synthesize proteins. Thus, correctly matches with 5) synthesizing moleculesCytosol: It is a semi-fluid-like substance made up of a lot of water, dissolved ions, smaller minute molecules, and proteins. It has filled in the interior cellular space. Thus, the correctly matches with 6) liquid in the cell.

Thus, the correct answer is - Option C.

Learn more about cell organelles:

https://brainly.com/question/17994377

9.5 What are the similarities and differences between reproduction in amoeba and reproduction in hydra?​

Answers

Answer:

similarities: 1 they both reproduce asexually

Differences: 1 hydra reproduce through a process called budding whereas                              amoeba reproduce through a process called binary fission.

                    2 budding in hydra-  results in symetric division.

                       binary fission in amoeba- results in unsymetrical division.

Explanation:

Amoeba reproduces by a process known as binary fission in which parent cell divides into two equal daughter cells. Whereas in hydra reproduction occurs by budding. In budding, the bud is formed from the parent individual whereas in binary fission no bud formation occurs

( PLEASE ANSWER IT FAST) Label the Organelles of a Cell
Identify the organelles in the cell to the right.

Answers

i think i'm too late to help D:

Answer:

A-vacuole

b- chloroplast

c-cell membrane

d- golgi

e- endoplasmic

f-cell wall

Explanation:

What is socialization​

Answers

As this question as biology at the top,socialization is a social process with strong biological components that interact with social and cultural frameworks and factors

The breeds of dogs are all
one species, but they have
incredible genetic diversity.
Who first realized that
variation mattered, even
though he didn't know the
exact mechanism?
A. Lamarck
B. Aristotle
C Darwin
D. Griffith

Answers

Answer:

C Darwin

Explanation:

Charles Darwin, the father of evolution theorised that within any population, there exists variation in traits which help the animals adapt to their environment and help them survive.

In the same vein, he believed that the breeds of dogs are all one species, but they have incredible genetic diversity.

Therefore, Charles Darwin first realized that variation mattered, even though he didn't know the exact mechanism.

Are lizards reptiles or amphibians?

Answers

Answer:

Reptiles are turtles, snakes, lizards, alligators and crocodiles. Unlike amphibians, reptiles breathe only through their lungs and have dry, scaly skin that prevents them from drying out

Amphibians are frogs, toads, newts and salamanders. Most amphibians have complex life cycles with time on land and in the water. Their skin must stay moist to absorb oxygen and therefore lacks scales. Reptiles are turtles, snakes, lizards, alligators and crocodiles.

Besides oxygen exchange, the respiratory system also functions to eliminate (Click to select) . Too much of this gas can cause a(n) (Click to select) in blood pH, compromising homeostasis.

Answers

Answer: Carbon dioxide, decrease

Explanation:

Cellular respiration is a set of reactions by which organic compounds (sugars) are degraded by oxidation to inorganic substances. This process provides energy in the form of ATP and to achieve this, many reactions occur in which electrons are passed from one molecule to another, called redox reactions. In the case of aerobic respiration, the final electron acceptor is molecular oxygen, which is reduced to water.  Oxygen, like any gas, crosses the plasma membrane and then the mitochondrial membrane, and in the mitochondrial matrix it binds electrons and protons, forming water. It is in this final oxidation and in previous processes that energy is obtained. The reactions that extract energy from sugars such as glucose are catabolic reactions since a large molecule is broken into smaller molecules. For example, when glucose is broken down in the presence of oxygen, six molecules of carbon dioxide (CO2) and six molecules of water are obtained. Both CO2 and water are eliminated by lung exhalation.

In the event that this carbon dioxide is not completely eliminated, something called respiratory acidosis occurs, which is one of the disorders of the acid-base balance due to a decrease in the frequency of respirations or hypoventilation. The increase in the concentration of carbon dioxide in the blood causes the pH value to decrease. This scale is a measure of the degree of acidity or alkalinity of a substance or solution. A pH value of less than 7 means it is more acidic, and a pH value of more than 7 means it is more alkaline. Carbon dioxide is constantly produced as the body metabolizes energy, which will accumulate in the circulation rapidly if the lungs do not remove it properly. Alveolar hypoventilation thus leads to an increase in arterial CO2 partial pressure. The increase in pressure in turn decreases the ratio of bicarbonate (HCO3) to bicarbonate pressure with a consequent increase in acidity or decrease in blood pH. The body's metabolism rapidly generates a large amount of carbonic acid (H2CO3) and non-volatile acid. The lungs normally excrete the volatile fraction through ventilation without accumulation of acid in the blood but in this case this is not possible and this accumulation of carbonic acid causes the pH to rise. This disrupts homeostasis, a form of equilibrium that is achieved through a network of feedback control systems that constitute the self-regulatory mechanisms.

Pleasssee helepppppp

Answers

THE NASAL CAVITY IS A HOLLOW SPACE WITHIN THE NOSE AND SKULL THAT IS LINED WITH HAIRS AND MUCUS. THE FUNCTION INTO WARM, MOISTURIZE, AND FILTER AIR ENTERING THE BODY BEFORE IT REACHES THE LUNGS

4.Differentiate between digestion and assimilation.
5.Name the secretions of stomach which help in digestion of food.
6.Name the three digestive glands and their role in digestion.
7. Animals like cows cannot chew their food properly at the time they take it in. Explain.

Answers

Answer:

do it yourself fffffffff

What process in biology requires energy from a cell?

Answers

Answer:

I would assume you are talking about just basic general biology, in which case it's probably just looking for cellular respiration.

Explanation:

Metabolism is a combination of chemical reactions that are spontaneous and release energy and chemical reactions that are non-spontaneous and require energy in order to proceed. Living organisms must take in energy via food, nutrients, or sunlight in order to carry out cellular processes.

Which refers to the distance from the midpoint to the highest point for a transverse wave?

Answers

Amplitude. The distance from a midpoint to the maximum point (crest) or the minimum point (trough) of a wave.
Amplitude. Definition. The distance from the midpoint to the maximum point (crest) or to the minimum point (trough) of a wave.

which molecule is a saturated fat?

Answers

Answer:

Option B is the correct option

what are the qualities of woollen fabric that makes it suitable for winter​

Answers

Answer:

Heat conductivity

Explanation:When wool fibres are exposed to heat, moisture, and strain, they interlock and contract. Felting is aided by the scale-like exterior of the fibres. Heat conductivity: Since wool fibre is a weak conductor of heat, fabrics made from it are best suited for winter wear

Discuss who is impacted by desertification including which continents are impacted and the role of an increasing population.

Answers

Answer:

Africa and Asia.

Explanation:

Africa and Asia are the most affected regions in the world which is greatly affected by desertification. The climate change and human activities has a great impact in these areas which causes desertification as compared to other areas in the world. The increase in population increase the rate of depletion of natural resources which causes more pollution in the environment that leads to desertification in these areas.

How does a mutation in a sex cell differ from a mutation in a non-sex cell?
O
A. Mutations in sex cells can be passed on to children.
O
B. Mutations in sex cells are chromosomal mutations.
О O
C. Mutations in sex cells are more deadly.
О O
D. Mutations in sex cells are silent mutations.
SUBMIT

Answers

Answer:

A.

Explanation:

Mutations that happen in sex cells during meiosis are able to pass onto offspring.

"Mutations in sex cells can be passed on to children." Therefore, option (A) is correct.

What is mutation?

A mutation in a sex cell differs from a mutation in a non-sex cell in that mutations in sex cells can be passed on to children. Sex cells, such as eggs and sperm, carry genetic information that is passed on to the next generation during fertilization.

If a mutation occurs in a sex cell, it can be transmitted to the offspring and can potentially affect the genetic makeup of future generations. On the other hand, mutations in non-sex cells, such as skin cells or liver cells, cannot be passed on to offspring because they do not contribute to the genetic material of the next generation.

Learn more about mutation, here:

https://brainly.com/question/24152269

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If two haploid sperm fertilize a single haploid ovum, the resulting zygote would be considered a ________.

Answers

the answer:
triploid

ments
Assignment 1 - Provide a narrative for the following scenarios. Use complete
sentences and be careful with spelling and grammar. 20 Points (5 points each)
1. The physician orders urine C&S on a patient. The patient asks why it is
necessary to do this test. How would you, the medical assistant, clearly
explain this to the patient?
2. A patient is asked to bring in a first morning urine specimen for testing.
You, the medical assistant, provide the patient with a container for the
collection and explain that it needs to be refrigerated if they cannot bring
it to the office right away. How do you explain to the patient the need
for a first morning specimen and the request to refrigerate?
3. A patient is being treated for diabetes. This patient asks you, the
medical assistant, why it is necessary a urine specimen is collected each

Answers

Answer:

1.Urine culture and sensitive is used to identify the microorganism that is causing the infection, and to identify the antibiotics, sensitive to the microorganism, if the urinary tract is not treated promptly it can lead to recurrent urinary tract infection.

2. First urine sample of the morning is more concentrated form as urine is present in the bladder for almost 8 hours. It contains an increased number of protein or urinary casts. The sample is placed in the refrigerator to get refrigerated as holding it at room temperature and if infected with bacteria present in the urine it uses the glucose and alter the results.

3. diabetic ketoacidosis is one of the many complications if you are having diabetes. Another complication is diabetic nephropathy inorder to check the urine acetone as well as protein in urine we advise for urinalysis each time you visit.

After mitosis, the number of chromosomes is ______ as/of the parent cell.

After meiosis, the number of chromosomes is _____ as/of the parent cell.

Answers

Answer:

meiosis 4

mitosis 2

Explanation:

Answer:

For mitosis - the same

The number of chromosomes at the end of mitosis are [THE SAME] as the parent cell.

________________

For meiosis - half

The number of chromosomes at the end of meiosis are [HALF] as much as the parent cell.

Explanation:

Trust me, this is correct. Tried it myself.

Explain the importance of nitrogen-fixing bacteria?​

Answers

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Nitrogen-fixing bacteria fix atmospheric nitrogen to ammonia, which can then be taken up by plants.

The process is called biological nitrogen fixation.

Rhizobium, Azotobacter, cyanobacteria are some examples of nitrogen-fixing bacteria, which may be free-living or symbiotic.

When the belt is moving at a high speed, 350 pills can be coated per hour. How many minutes would it take to coat all the pills in this batch at a high speed?

Answers

Answer:

6 pills are coated in one minute time.

Explanation:

There are 350 pills can be coated in 60 minutes due to high speed of belt movement which means that 6 pills are coated in one minute time period so if there are 60 pills so the belt takes 10 minutes to complete the coating of the pills. If there are 200 pills to be coated then we used the equation i.e.

6 pills -------- 1 minute

200 -------- x

By cross multiplication we get,

6x = 200 x 1

x = 200 / 6

x = 33.3 minutes

This means that in 33 minutes the belt can coated 200 pills.

examples of c3 and c4 plants​

Answers

C3 vs C4 Plants
C3 Plants C4 Plants
Examples include rice, wheat, oats, barley, cotton, peanuts, tobacco, sugar beets, soybeans and spinach Examples include Maize, Sugarcane, pearl millet, sorghum.
Leaves of these plants DO NOT show Kranz anatomy. Leaves of these plants show Kranz anatomy.
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