In the past, decreasing fertility rates were associated with decreasing poverty levels
a. True
b. False
Answers
B.False. This recent reduction in fertility could simply be a transitory reaction to high unemployment rates, or it could indicate a longer-term decline in lifelong fertility.
Most recessions, which typically last two to five years, have only had small effects on fertility rates. Recessions typically have an impact on when women become fertile, but not on how many children they will ultimately have in their lifetimes. 2 Longer-term patterns in fertility are influenced by more general socioeconomic issues, such as marriage trends, economic development, cultural standards, and women's access to education, employment, and contraception. The birth rate had been falling during the 1920s a decade of great economic growth even if fertility rates peaked during the Great Depression as more couples utilised contraception to reduce family size.
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Related Questions
Where is energy storef in living systems
Answers
WILL GIVE BRAINLYIEST JUST PLEASE HELP Which of the following is NOT an example of a trait?
A)
eye color
B)
ear shape
C)
species
D)
body height
Answers
Answer: I believe it would be ear shape.
The __________ perspective focuses on how people process, store, and use information. A. behavioral B. sociocultural C. cognitive D. biological
Answers
The cognitive viewpoint demonstrates how effectively people can utilize their mental toughness to concentrate on knowledge, how readily they can use it whenever needed, as well as how they can retain important references for better use.It stresses the mind's entire purpose throughout the mental processes and how well it stores, uses, as well as processes the data.
Thus the response above is right.
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Answer:
D) Cognitive
Explanation:
edge 2023
exercising regularly increases the body's ability to deliver oxygen to its tissues which reduces the formation of cancer-enhancing free radicals.
Answers
Regular exercise improves oxygen delivery, creating a healthier cellular environment and reducing the formation of cancer-promoting free radicals, aiding in cancer prevention.
The influence of regular exercise on cancer prevention is just one of the many advantages it has been found to have for general health. Its capacity to improve the body's oxygen transport to tissues is a significant benefit. The heart pumps more effectively when you exercise, which increases blood flow and cell oxygenation. This oxygen-rich atmosphere is essential because it lessens the production of free radicals, which can promote cancer. Free radicals are unstable chemicals that have the potential to harm DNA and other biological components, which could result in the development of cancer. Regular exercise improves oxygen delivery, which helps to produce a better cellular environment and lowers the chance of the creation of free radicals that can cause cancer, helping to prevent the disease.
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What pharmaceutical products can be produced by genetically modified plants?
Answers
Mammalian antibodies, and vaccines are the products produced by the genetically modified plants.
Transgenic (GM) plants are genetically modified using the recombinant DNA technology. This is to express genes that are not native to the plant or to alter endogenous genes. A protein encoded by a gene confers a particular trait or characteristic on that plant. Corn is the most widely grown crop in the United States, most of which he GMOs. Most GMO corn is made to resist pests or withstand herbicides. Bacillus thuringiensis (Bt) corn is a GMO corn that produces proteins that are toxic to certain pests but not humans, pets, livestock, or other animals.
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4. Sara always seems to take control in group projects and always participates in class discussions. What intelligence is most likely Sara's strongest?
OA People
OB. Body
OC. Word
OD. Nature
Answers
Sara always seems to take control in group projects and always participates in class discussions. The people intelligence is most likely Sara's strongest.
People intelligence is all about using strategy, technology, and actions to learn more about a specific group of people -- like, say, a company's employees or candidates hoping to work there -- and implementing the tools and processes needed to address issues your data analysis may have uncovered.
People Intelligence is the combination of strategies and technologies used by organizations for statistical and data-driven analysis of performance, productivity, and business information.
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What is the function of the smooth endoplasmic reticulum in the animal cell
Answers
Answer:
It produces lipids and hormones.
What molecule is required each time the myosin head detaaches from one site and reattaches to another
Answers
Answer:
The adenosine triphosphate (ATP) molecule
Explanation:
The actin filaments are often associated with myosin to produce muscle contraction. These myosin filaments are considered to be 'molecular motors' capable of converting the chemical energy contained in the ATP molecule to mechanical energy, thereby producing cell movement. Myosin heads bind to actin filaments in order to generate a power stroke. When the adenosine triphosphate (ATP) molecule binds to myosin, the myosin head detaches to the actin filament. During this process, the ATP molecule is broken down and then the released energy is used by the myosin filament to return to its original position.
Label the diagram of the enzyme substrate complex:
Answers
Answer:
1. active binding site
2.starch
3. amylase
4. sugar
Explanation:
enzyme can be reused it won't change it shape in catabolism. so 3 is amylase
starch is bigger then sugar
Explain why humans lose more water on a hot day then on a cold day
Answers
Answer:
the body tends to release more waste products in liquid form.
Explanation:
on a hot day, the human body releases sweat more than on a cold day. this is due to a difference in the temperature.
Hemophilia is a genetic blood disorder where normal clotting of the blood at the site of a wound or injury does not occur. Tom (III-1) has hemophilia, but neither of his parents have it. However, his mother’s father (I-1) (Tom's maternal grandfather) does have it. In fact, no females have ever displayed the trait in Tom's family, but several males have been affected. The inheritance pattern is shown here in a pedigree. What best describes this inheritance pattern?A)sex-linked on the YB)dominant trait on the XC)sex-linked recessive on the XD)dominant trait on an autosome
Answers
Hemophilia is caused by a recessive allele found in the X chromosome, so if a male has the defective gene, he will present the disease, because it's the only copy of the gene that he has.
How do scientists use recombinant DNA biotechnology to alter a cell's protein production?
They create duplicates of the cell's genome within its nucleus.
They insert a gene from another organism into the cell's genome.
They remove genes for certain proteins from the cell's genome.
They introduce other proteins into the cell to teach it.
Answers
Scientists use recombinant DNA biotechnology to alter a cell's protein production by inserting a gene from another organism into the cell's genome. Hence, option B is correct.
What is recombinant DNA?Recombinant DNA technology entails changing genetic material outside of an organism to produce living things or products with improved and desired traits. With the help of the right vector, this approach includes inserting DNA fragments from various sources with desired gene sequences.
Recombinant DNA is used in the production of various antibiotics, vaccines, transgenic plants, and transgenic animals.
With the help of the right vector, this approach includes inserting DNA fragments from various sources with desired gene sequences. Thus, option B is correct.
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One of the scientists is shown gathering hair samples from an uncontaminated wolf den. Why would these samples be useful in studying animal life in the exclusion zone?
Answers
As the hair sample contain DNA of the particular organism, this can help in studying animal life in the exclusion zone.
What is exclusion zone?An exclusion zone is a location or activity that people are not permitted to enter or perform, for example, because it would be dangerous.
Hair DNA is genetic material that is used to build our hair. "Our hair follicle contains nucleic acid DNA, while our hair shaft contains mitochondrial DNA."
The hair follicle and the hair shaft are the two parts of hair from which DNA can be extracted and isolated.
Because the hair sample contains genetic information means DNA from the specific organism, it can aid in the study of animal life in the exclusion zone.
Thus, the DNA can give all the genetic information regarding the wolf.
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1. Estuaries result from increased sedimentation due to low wave energy.
True (OR) This statement is not true because:
2. Plant dominated ecosystems can result from high or low wave energies.
True (OR) This statement is not true because:
Answers
1. This statement is not true because estuaries are actually formed by a combination of factors, including tides, currents, and river flow, not just increased sedimentation due to low wave energy.
2. This statement is true. Plant-dominated ecosystems, such as salt marshes and mangroves, can thrive in areas with both high and low wave energies, depending on the specific conditions and adaptations of the plant species present.
when a cluster of cells in the ovum splits off within the first two weeks after fertilization and forms two nearly identical zygotes, the result is .
Answers
Monozygotic twins occur when a single zygote or fertilized egg splits apart in the first two weeks of development.
In monozygotic twins, the blastocyst then splits and develops into two embryos. Zygotic splitting occurs between second and sixth day when the zygote divides, in two parts, each zygote then develop into an embryo, leading to identical twins .
Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into two parts. Factors that increase the chance of twins include are dependency on high amounts of dairy foods, crossing the age of 30, and conceiving while breastfeeding.
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The transfer of electrons from the primary electron acceptor of photosystem II to the P700 chlorophyll a molecules of photosystem I is
Answers
The photosystems are sets of chlorophyll molecules and other pigments and transmembrane proteins packed in the thylakoids, the transfer of electrons from the primary electron acceptor of photosystem II to the P700 chlorophyll a molecules of photosystem I is called photophosphorylation.
What is photophosphorylation?It is the global process of transformation of the energy stored in the electron of the reactive center excited by light, in a pyrophosphate bond of an ADP molecule.
When a photon is absorbed by one of the pigments of photosystem II, it quickly bounces off the other molecules until it reaches chlorophyll a in the reaction center.
The electron, after leaving photosystem II, reaches the reaction center of photosystem I, where chlorophyll P700 is, the pigments absorb light and the electron reacquires a high level of energy.
Therefore, we can conclude that when this molecule absorbs light energy, an electron is thrown up to a higher energy level and transferred to another molecule, a primary electron acceptor.
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It is advantageous for a predator to prey exclusively on a single prey species.
Answers
Answer:
Assuming this is a true/false question, the answer would be false.
If a predator only preyed on one species, it would be at a disadvantage if the prey it feeds on gets wiped out in that region.
Therefore, your answer is False.
Animal Cell: When removed, the cell is unable to divide.
Answers
Answer:
asymmetrical
Explanation:
cannot be divided into any shape
The celiac ganglion ________. Group of answer choices is located near the base of the superior mesenteric artery arises from the greater splanchnic nerve projects postganglionic fibers that innervate the small intestine and the kidney and urinary bladder arises from the lesser splanchnic nerve arises from the lumbar splanchnic nerve
Answers
Answer:
The correct answer is ''arises from the greater splanchnic nerve''
Explanation:
The greater splanchnic nerve or great adrenal nerve, originates in the thoracic sympathetic chain from vertebral levels T5 to T9 (T10). It runs over the bodies of the thoracic vertebrae and as it descends it becomes more anterior. It enters the abdomen crossing the diaphragmatic pillar and ends at the celiac plexus. The upper part of each celiac ganglion continues with the greater splanchnic nerve. The collateral or prevertebral ganglia innervate the abdominal and pelvic organs and viscera. The celiac ganglion receives preganglionic fibers from T5 to T12 and innervates the stomach, liver, pancreas, gallbladder, small intestine, spleen, and kidneys.
How can thermal energy transfer (aka: heat) be regulated to maintain a consistent interior temperature?
(30 points)
(this is about housing)
Answers
The internal energy of a system as a result of its temperature is referred to as thermal energy.
Thus, The molecules that make up a substance move more quickly as it is heated, gaining thermal energy via the transmission of heat. The term "heat" refers to the thermal energy being transported from a hotter system to a cooler one.
Temperature is used to assess the degree of "hotness" or "coldness" of an object. There are three methods that thermal energy can be transferred: conduction, convection, and radiation.
Conduction is the transfer of heat energy between adjacent molecules that are in touch with one another.
Thus, The internal energy of a system as a result of its temperature is referred to as thermal energy.
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Study this image of space. A cloud of gas and dust. What object is shown in this image? a nebula a red giant a supernova a neutron star
Answers
Answer: The image to be studied is missing from the question,so I attached it to my answer,please click on the attachment provided to view the image being studied.
The correct answer to the question is option A.
NEBULA
The object shown in the image is known as a nebula.
Explanation: A nebula is found in interstellar space,it has a form of a giant cloud of dust. When some stars goes into dying process,they explode throwing out gas and dust which forms a nebula.(a supernova remnants nebulae).
Some nebulae(singular form of nebula) are also found where new stars are being formed.
Nebula are the basic building blocks of the universe,they are made up 90% hydrogen,10% helium and other heavier elements in trace amounts from which stars and other solar systems are made.
Nebula exist in 5 distinct types namely;
Emission nebulae, Reflection nebulae,Dark nebulae, Planetary Nebulae and supernova remnants Nebulae.
Answer:
AAAAAAAAAAAAAAAAAAAAAAA!
Explanation:
1. Ask Questions Starting with winter wheat as an example, research the role of epigenetic changes in other organisms. Use the "agouti mutation" in mice as a specific example.
Answers
How do epigenetic changes affect the growth and development of winter wheat and other crops?
What is the specific role of epigenetics in regulating gene expression in mice with the agouti mutation?
Can epigenetic changes be used to enhance the nutritional content or resistance to pests and diseases in crops?
How do environmental factors, such as temperature and moisture, influence epigenetic changes in organisms?
What are the potential long-term effects of epigenetic changes on the health and survival of organisms?
Answer:
What are epigenetic changes and how do they occur in organisms?
How does winter wheat utilize epigenetic changes to adapt to its environment?
Can epigenetic changes be inherited by offspring?
How does the agouti mutation affect the phenotype of mice and what is its mechanism of action?
Are there any other examples of epigenetic changes in animals that have a significant impact on their phenotype?
Screening is: O Treatment of the disease
O Identification of symptomatic disease O Identification of asymptomatic disease O All the answers are correct
Answers
Screening refers to the identification of a disease or health condition in a population before the onset of symptoms or when the disease is still in its early stages. Therefore, the correct answer is "Identification of asymptomatic disease."
Although treatment of the disease is an important aspect of managing and controlling its impact, it is not part of the definition of screening. Similarly, identification of symptomatic disease may be important for individual diagnosis and treatment but it is not the primary focus of screening. Therefore, the answer "Identification of symptomatic disease" and "Treatment of the disease" are not correct.
Hence, the correct answer is "Identification of asymptomatic disease."
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What does Homologous mean?
Answers
having the same relative position, value, or structure
Do you label a container before or after putting a substance in the container?
Answers
Answer:
yes so you don't get confused on what the substance is
Explanation:
eg 2021!!!!!
how can we predict solar activity impacts and protect earth?
Answers
In order to protect earth it is required to predict or forecast them in advance and shut down systems before it hits.
In general scenario the scientists believe that the effective way to protect anything against solar storms is to anticipate or forecast any news in advance and shut down the important systems before it hits. Scientists are also working for ways to improve these forecasts to release warnings a few hours in advance.
Hence, for predicting these storms, forecasters use to closely watch the Sun for solar flares and coronal mass ejections. Solar flares are considered as the massive explosions on the Sun's surface. They often occurs near sunspots and release photons such as X-Rays, visible light, and ultra-violet light.
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2. Apply Scientific Reasoning Your teacher
has prepared a solution by stirring sodium
thiosulfate into hot water in a beaker. After
it has cooled, she drops a small crystal of
sodium thiosulfate into the beaker. The small
crystal quickly grows very large. Explain
what happened.
sodium thiosulfate into the beaker. The small crystal quickly grows very large. Explain what happened
Answers
Answer: heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. ... Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
What is sodium thiosulphate?The inorganic compound sodium thiosulfate, sometimes known as sodium thiosulphate, has the formula Na2S2O3.xH2O.
It can be found as the pentahydrate which is white or colorless. The solid is a crystalline efflorescent (quickly loses water) substance that readily dissolves in water.
Gold mining, water purification, analytical chemistry, the creation of silver-based photographic film and prints, and medicine all make use of sodium thiosulfate.
The treatment of cyanide poisoning and pityriasis are among the medical applications of sodium thiosulfate. It is among the safest and most useful medications required in a healthcare system.
Therefore, Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
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3. the basal ganglia are thought to elicit movement via . group of answer choices a. direct excitation of the primary motor cortex b. direct excitation of the premotor cortex c. disinhibition of thalamic neurons (va/vl) d. direct excitation of thalamic neurons (va/vl)
Answers
The basal ganglia are thought to elicit movement via disinhibition of thalamic neurons (va/vl).
The term "basal ganglia" describes a collection of subcortical nuclei that play a variety of tasks, including motor learning, executive behaviors, and emotions in addition to their primary job of controlling movement. The putamen, globus pallidus, caudate nucleus, subthalamic nucleus, and substantia nigra are the other four pairs of nuclei that make up the basal ganglia. For a very long time, it has been considered that thalamic neurons fire in burst mode during sleep and unconsciousness and in tonic mode during perceptive states. However, new research indicates that bursts could also be important for the encoding of sensory data. The clusters of tightly packed neuronal cell bodies that make up the thalamus are known as thalamic neurons. Just above the brainstem in the middle of the brain, the thalamus is an oval, paired gray matter structure.
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What is the difference between species richness and evenness?
Answers
The quantity of different types of species in an ecosystem is measured by species richness. A high number of different species in a habitat indicates greater species richness and a more diverse ecosystem.
Species evenness is a measure of each species' relative abundance. The total number of species is referred to as species richness. Species evenness describes how evenly dispersed the species are within a given community.
The quantity of distinct species is measured by species richness, whereas species evenness indicates whether the environment has a dominant species or has equivalent abundances of all species. The single most significant component of species diversity is species richness. Another important factor is the consistency of species relative abundances.
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What is the volume of this fish tank?
I= 50 cm h=12 cm w=20 cm
please help
Answers
Answer:
12,000 cm
Explanation:
To find volume, you multiply length times width times height. Therefore, your answer is 12,000. Hope this helps! :D