Answer:
1.
Diverticular disease is treated with a high-fiber diet and bulk laxatives such as psyllium hydrophilic mucilloid (Metamucil). Fiber decreases the intraluminal pressure and makes it easier for stool to pass through the colon. Bulk laxatives do not manage diarrhea, anxiety or relieve gas formation.
Capsular hydrostatic pressure is the chief force pushing water and solutes out of the blood and across the filtration membrane. True or False
Answer:
True
Explanation:
Capsular hydrostatic pressure (CHP) is a back-pressure that opposes filtration. As the filtrate is forced into the capsular space, it meets 2 forms of resistance: the wall of the capsule and the fluid that has already filled the renal tubule.
This pressure drives fluid out of the capillary (i.e., filtration), and is highest at the arteriolar end of the capillary and lowest at the venular end.
The process of gene cloning involves the transfer of what between organisms?
Answer:
Part of DNA (genetic material)
Explanation:
DNA cloning, as a method in molecular biology, is used for the multiplication of gene (or other piece of DNA). It usually includes steps of DNA insertion into plasmid (prokaryotic circular piece of DNA). That plasmid is than introduced into bacteria via process called transformation.
One king dumb is not named in the graphic. It contains the most ancient bacteria that live in extreme environments. Examples include: halophiles and methane gems. To which kingdom do these belong ?
A. Fungi
B. Archaea
C. Bacteria
D. Archaebacteria
Answer:
B
Explanation:
halophiles are classified into the Archaea domain, there are also bacterial halophiles and some eukaryota
Answer:
Archaebacteria
Explanation:
I just did the USATestprep hope this helps
The chemical breakdown of hydrogen-containing compounds requires an input of energy. true or false
The answer is true if I am correct
Answer:
True
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Which materials preserve soft tissues in fossils? Check all that apply.
amber
minerals
permafrost
sediment
tar
Answer:
The answer is Amber, Permafrost, and Tar
Explanation:
Answer:
a c e
Explanation:
My boss isn't willing to increase the number of vacation days we get each year. that means she doesn't care about our health. it's wrong not to care about employees' health. she should be replaced with someone who cares about employees' health."
Talk to someone higher than her in status in the job?
Final answer:
Decisions about vacation policies involve various factors; it is not solely a measure of how much employers care about employee health. Supporting employees in work-life balance and understanding the implications of workplace health is becoming increasingly important in modern businesses. Engagement and support from supervisors are crucial in encouraging employees to take their allotted time off.
Explanation:
The assertion that a boss who is not willing to increase the number of vacation days does not care about employee health may not be entirely accurate. There are various factors influencing decisions around employee benefits beyond just caring for employee well-being. However, it is true that there is a growing understanding in the business community about the importance of employee health and work-life balance.
In 2015, according to Project Time-Off, 55% of U.S. workers did not use all of their paid vacation time and as a result, a staggering 658 million vacation days were lost. Businesses are beginning to recognize that unhealthy habits like smoking or being overweight increase health care costs, which in turn affect the company's bottom line. Companies seek to motivate employees to work hard, be productive, behave ethically, and stay healthy. Managers, like your boss, who seek suggestions to make it easier for employees to balance work and nonwork demands, are taking steps towards valuing employee health. The pressures of workload, job security, and affordability of vacations contribute to the hesitance to take time off.
The notion that someone should be replaced for not increasing vacation days is a matter of company policy and employee negotiation. It is important to note that the feeling of support from supervisors can significantly influence an employee's decision to take that much-needed time off.
For some traits (such as birth weight in mammals), natural selection favors individuals that are average and the extremes are selected against. this is known as
Answer:
Directional selection.
Explanation:
This type of directional selection is referred to as stabilizing section where the intermediate phenotypes are favored over those of the extreme. It is referred to as stabilizing selection because it maintains the mean phenotype of the population.
Stabilizing selection is the process where natural selection favors individuals that are average within a population, reducing genetic variance and selecting against extreme phenotypes.
The phenomenon where natural selection favors individuals with the average phenotype while selecting against those with extreme variations is known as stabilizing selection. This form of selection is significant as it leads to a decrease in a population's genetic variance over time. An example of stabilizing selection is human birth weight, where infants who are neither too large nor too small have the highest survival rates. Similarly, in a population of mice living in a woodland, mice with fur color that closely matches the forest floor are favored by natural selection as they are less likely to be spotted by predators compared to mice with fur colors at the extremes.
What is the molecular formulas for penicillin, adenosine triphosphate, cholesterol, testosterone, and phenylalanine.
Answer:
Penicillin Molecular Formula: C16H18N2O5S
adenosine triphosphate Molecular Formula: [tex]C10H12N5O13P3^{-4}[/tex]
cholesterol Molecular Formula: C27H46O
testosterone Molecular Formula: C19H28O2
phenylalanine Molecular Formula: C9H11NO2
Explanation:
An inversion in a human chromosome often results in no demonstrable phenotypic effect in the individual. What else may occur?
Answer:
Some abnormal gametes may be formed
Final answer:
A chromosome inversion can result in a mostly unaltered phenotype if it doesn't disrupt gene sequences. However, in heterozygotes, it can cause meiotic issues leading to decreased fertility, while homozygotes typically do not experience such issues. Some inversions can contribute to species evolution.
Explanation:
When a chromosome inversion occurs, it involves the detachment, 180° rotation, and reinsertion of part of a chromosome. This type of genetic rearrangement generally does not affect the individual's phenotype if it does not disrupt a gene sequence. However, in the case of heterozygotes, this can lead to issues during meiosis, creating a significant number of unbalanced gametes, and consequently a decrease in fertility. On the other hand, homozygotes for the inversion do not experience these problems, as their chromosomes pair normally without the formation of loops. Additionally, certain inversions, such as the one found on chromosome 18, can contribute to the evolution of new species, marking their significance beyond the individual level.
During which year does one of the projections show the human population reaching carrying capacity?
A. 2045
B. 2020
C. 1960
D. 2080
A 2045 would be the year we would reach capacity
Answer:
The correct answer is option A. "2045".
Explanation:
Many environmental scientist have the projection that the Earth has a maximum carrying capacity of 9 billion to 10 billion people, which would mean that at the point the resources of the Earth would start to decline. By 2045 it is projected that global population will reach nine billion people, therefore, it is believed that by that year the human population would reach its carrying capacity.
WILL GIVE BRAINLIEST!!!
A serious eye disease was noticed in the common house finch. After investigation, researchers discovered that the bacterium, Mycoplasma gallisepticum, was found present in the affected birds. Design an investigation and describe how you would determine if the bacterium affected the population size of the house finch. Include in your explanation the data you would collect, what patterns you would look for as you analyzed the data, and the type of relationship that exists between the birds and the bacterium.
Microbes may be tiny, but that doesn’t stop some of them from causing major destruction. Even supervillains like Lex Luthor or Doctor Doom were never able to pull off as much devastation as the bugs that cause bubonic plague or malaria. It turns out it’s hard to find a good opportunity to study harmful, contagious diseases. It’s just not safe. One option is to study an epidemic that doesn’t affect humans—but then it’s hard to track the disease, since animals don’t check into hospitals.
The answer is Pathogenic parasites.
Relationship type that exists between the birds and the bacterium:
Microbes may be tiny, but that doesn’t stop some of them from causing major destruction. Even supervillains like Lex Luthor or Doctor Doom were never able to pull off as much devastation as the bugs that cause bubonic plague or malaria. It turns out it’s hard to find a good opportunity to study harmful, contagious diseases. It’s just not safe. One option is to study an epidemic that doesn’t affect humans—but then it’s hard to track the disease, since animals don’t check into hospitals.
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Mutations in which of the following genes lead to transformations in the identity of entire bodyparts?
A) segmentation genesB) inducersC) homeotic genesD) egg-polarity genes
The mutations in homeotic genes lead to transformations in the identity of entire body parts. The correct option is C.
What is homeotic gene?Homeotic genes are master regulator genes that control the growth of specific body segments or structures.
Body structures may develop in the wrong place if homeotic genes are overactivated or deactivated by mutations.
These genes responsible for animal structure are known as "homeotic genes," and they contain DNA sequences known as homeoboxes.
Homeobox genes code for protein transcription factors. Hox genes are a specific group of animal genes that contain homeobox sequences.
Homeotic genes control the development of organs in specific segments and parts of the body. Mutations in homeotic genes cause changes in the identity of entire body parts.
Thus, the correct option is C.
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What are the effects of soil pollution?
Direct contact with pollution soil can cause problems, respiratory problems, and _______
A) cancer B) hearing loss C) speech interference in human beings. ________ A) digging
B) mining C) drilling often contaminates the soil with harmful chemicals, affecting terrestrial life adversely.
Answer:
A) cancer
B) mining
Explanation:
Unfortunately the soils nowadays are very often contaminated. The contamination comes from multiple different sources, industry, mining, chemicals used in the agriculture etc. All of them cause serious damage to the living organisms, be it plants, animals, or humans. A direct contact with soil that has been contaminated with certain metals can even cause cancer. The mining is one of the biggest polluters of the soil. In the process of mining, lot of toxic chemicals are released in the surrounding area, mostly contaminating the soil and the water, and making them totally unusable for prolonged period of time.
Direct contact with polluted soil can lead to issues such as respiratory problems and A)cancer in humans. Additionally, B)mining often contaminates soil with harmful chemicals, adversely affecting terrestrial life.
Soil pollution occurs when the soil is contaminated by harmful chemicals, leading to significant health problems such as cancer, and negatively impacts the environment by reducing biodiversity and agricultural productivity. Mining is a common cause of soil contamination. These issues highlight the importance of preventing soil pollution.
Effects of Soil Pollution:
Human Health: Direct contact or secondary contamination (via polluted groundwater or food grown in contaminated soil) can cause serious health issues, including cancer.Environmental Impact: Soil pollution can result in loss of biodiversity, lower bird and insect populations, and reduce the ability of many organisms to thrive.Economic Consequences: Contaminated soil reduces agricultural productivity and can lead to increased healthcare costs and environmental cleanup expenses.“In a 2009 study, presented by the National Academy of Science, 97% of climate scientists agree that human activity is causing global warming." Which of the following statements is best supported by this study? a. Most climate scientists dispute the theory of human influence on global warming. b. Global warming is most likely alarmist propaganda based on false data. c. Global warming is definitely not caused by human influence on nature. d. Most climate scientists believe that there is evidence that explains global warming.
Answer:
d. Most climate scientists believe that there is evidence that explains global warming.
Explanation:
From the passage, we know that a whooping 97% of climate scientists agreed that human activities is causing global warming.
From this, we know that climate change is caused by human activities.
The study clearly shows that there is known cause of climate change and it is due to human activities.
a. Most climate scientists dispute the theory of human influence on global warming.
This is false and does not agree with the passage. Infact most climate scientists agree to the fact that humans contribute the most to global warming.
b. Global warming is most likely alarmist propaganda based on false data.
The paragraph shows a scientific study from which the conclusion was drawn
c. Global warming is definitely not caused by human influence on nature.
This is false
Answer:
d. Most climate scientists believe that there is evidence that explains global warming.
Explanation:
From the passage, we know that a whooping 97% of climate scientists agreed that human activities is causing global warming.
From this, we know that climate change is caused by human activities.
The study clearly shows that there is known cause of climate change and it is due to human activities.
a. Most climate scientists dispute the theory of human influence on global warming.
This is false and does not agree with the passage. Infact most climate scientists agree to the fact that humans contribute the most to global warming.
b. Global warming is most likely alarmist propaganda based on false data.
The paragraph shows a scientific study from which the conclusion was drawn
c. Global warming is definitely not caused by human influence on nature.
This is false
In which way is biomass similar to fossil fuels?
Answer:Biomass includes wood and food crops such as sugarcane and corn, and also byproducts such as agricultural waste
Fossil fuels (coal, oil and natural gas) have played and continue to play a major role in transforming the world from an agricultural society to the modern industrial world we live in today. Fossil fuels produce electricity, and fuels for heating and transportation. They also provide petrochemicals used in industrial products and plastics.
Explanation:
Answer:
the answer is corn
Explanation:
Hope this helps ap 3x
a layer of rock contains an index fossil that is 250 million years old. How old is another layer of rock with the same fossil 1,000 miles away?
A layer of rock contains an index fossil that is 250 million years old. The another layer of rock with the same fossil 1,000 miles away is 250 million years old.
What do you mean by index fossil?Index fossils are fossils used to define and identify geologic periods. Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.
There are some types of index fossils which include Ammonites, Brachiopods, Graptolites, Nanofossils and Trilobites. Ammonites: The fossil of ancient marine animals is said to be known as an ammonite index fossil.
Index fossils are used to define geological periods. These fossils can be defined as "commonly found, widely distributed fossils that are limited in time span." If one finds an index fossil in a given layer, then one has bounds on the age of the layer.
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Deep inside landfills, bacteria decompose organic wastes in a low oxygen environment. this anaerobic decomposition results in a mix of gases called landfill gas, which consists of about 50% ________.
Answer:
Methane
Explanation:
Methane is a greenhouse gas considered more potent than carbon dioxide in creating a greenhouse effect. Landfills also produce carbon dioxide gas. Therefore, measures are usually taken on landfills to prevent global warming. Such measure includes; capturing and collection of the gas and the use of methanotrophs bacteria on the soil over the landfills to convert the produced methane into organic compounds.
Answer:
During anaerobic decomposition, the composition of a the byproduct of this process called landfill gas is approximately 50 percent methane and 50 percent carbon dioxide with trace amounts (<1 percent) of nitrogen, oxygen, hydrogen sulfide, hydrogen, and nonmethane organic compounds
Explanation:
Landfill gases are produced when bacteria break down organic waste.
Landfill gas is a mixture of hundreds of different gases. By volume, landfill gas typically contains 45% to 60% methane and 40% to 60% carbon dioxide. Landfill gas also includes small amounts of nitrogen, oxygen, ammonia, sulfides, hydrogen, carbon monoxide and other gases.
Which statement is true?
Answer:
D
Explanation:
D
An opinion can be based on personal views, judgement and/or beliefs and may be incorrect. (It’s like saying that you think cucumbers are the best veggie but that’s just an opinion.)
Scientific theories change all the time based on new information (remember when people thought the sun revolved around us).
Scientists are constantly learning more about everything in the universe (I mean we literally just got a picture of a black hole like a month ago)
but facts can be scientifically tested and are in order to make sure that it is a fact because by definition a fact is “something that is known to be consistent with objective reality and can be proven to be true with evidence”
That makes D correct
Why are action potentials usually conducted in one direction?
A) The nodes of Ranvier can conduct potentials in only one direction.
B) The brief refractory period prevents reopening of voltage-gated Na+ channels.
C) The axon hillock has a higher membrane potential than the terminals of the axon.
D) Ions can flow along the axon in only one direction.
E) Voltage-gated channels for both Na+ and K+ open in only one direction.
Answer:
B) The brief refractory period prevents reopening of voltage-gated Na+ channels.
Explanation:
Refractory period is a period during which neuron cell cannot be stimulated (depolarized) and this is why action potential does not re-stimulate the adjacent membrane that was previously depolarized. This is also the reason action potential can only travel in one direction from the neuron body towards axon.
Refractory period occurs because of the inactivation of voltage-gated sodium channels (while action potential is at its peak) which cannot be open for a certain period of time. and membrane cannot be depolarized.
Action potentials in neurons are usually conducted in one direction because of the refractory period - a brief period when the sodium channels cannot reopen, preventing another action potential from being initiated at that point. This ensures that action potentials move from the cell body and down the neuron's axon.
Explanation:The action potentials in neurons are usually conducted in one direction because of the refractory period that follows the firing of an action potential. In simple terms, after the neuron fires, there's a brief period - the refractory period - when the sodium channels cannot reopen. This is option B: The brief refractory period prevents reopening of voltage-gated Na+ channels. Therefore, once an action potential has passed a certain point along an axon, that part of the neuron briefly cannot initiate another action potential. This ensures that action potentials move in one direction along the nerve fiber: from the cell body and down the axon.
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Which scenario will result in offspring that have the greatest genetic diversity? A. A bacterium divides every 20 minutes leading to exponential growth in its population. B. A piece of a sea sponge breaks off, attaches in a new location, and grows into a new organism. C. A single-celled amoeba splits into two separate cells, resulting in a new organism. D. A female salmon lays eggs that are fertilized by a male salmon and hatch into new fish.
Answer:
D
Explanation:
i got it right on study island
A protein may consist of as many as _____ amino acid molecules.
a)500
b)2,000
c)5,000
d)48
2000 is right answer if not sorry
A protein may consist of as many as 5,000 amino acid molecules.
Answer:c
The most primitive true animal belongs to the phylum ____.
Answer:
Porifera or Sponges
Explanation:
Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they don't have nervous, digestive or circulatory systems.
Some substances, such as oil and gasoline, will not dissolve in water because
a) they are organic compounds, while water is inorganic
b) they do not have any charges to which the water can adhere
c) their molecules are too large to mix and dissolve in the water
d) they do not ionize or dissociate when mixed into the water
Oil and gasoline do not dissolve in water because their molecules are too large and they have weak dispersion forces that are more attracted to themselves than to water. Like dissolves like, meaning substances with similar intermolecular forces can dissolve.
Explanation:Substances such as oil and gasoline do not dissolve in water because their molecules are too large to mix and dissolve in water. The attractive forces between the particles in nonpolar compounds are weak dispersion forces, and the nonpolar molecules are more attracted to themselves than to the polar water molecules.
This causes the liquids to separate into two layers when mixed. The general rule for dissolving substances is 'like dissolves like', meaning substances with similar intermolecular forces can dissolve in each other.
In the 1950s, what discovery revolutionized biotechnology?
A.) cloning sheep
B.) using electrons for microscopes
C.) splicing genes
D.) molecular structure of DNA
In the 1950s, the discovery of molecular structure of DNA revolutionized biotechnology.
Hope this helps chu
Have a great day
Answer:
Answer is option D - molecular structure of DNA.
Explanation:
James Watson and Francis Crick discovered the molecular structure of DNA and mark a milestone in the history of the molecular biology and revolutionized biotechnology. They presented double helix, the twisted-ladder structure of DNA in 1953 and won Noble prize for their discovery in 1962. Though DNA was discovered in 1869. The X-ray crystallography data they presented showed that it is a helix structure composed of two strands coiled together.
Knowing the type of food consumed by an organism helps to identify the role of the organism in the community. This role is known as its
Answer:
Niche
Explanation:
Niche refers to adaptive features of an organism, its activity pattern and consumption of resources in the system.
Niche of an organism refers to its habitat, activity role and functional position within system. It includes the resources such as food that it obtains from the habitat for its survival.
Bioinformatics includes all of the following except __________.
Answer:The correct option is C.
Explanation: The options attached to this question are given below:
A) Using computer programs to align DNA sequences.
B) Analyzing protein interactions in a species.
C) Using molecular biology to provide biological information to a system so that it gets expressed.
D) Development of computer-based tools for genome analysis.
E) Use of mathematical tools to make sense of biological systems.
Bioinformatic is an interdisciplinary field that deals with the collection and analyzing of complex biological information. Bioinformatic is useful for many reasons. For instance, in molecular biology, bioinformatic technique makes it possible for scientists to extract useful information from very large complex data. Bioinformatic techniques can be used to carry out all the processes given in the options with the exception of option C.
The energy that excites the photosystems is supplied by
Answer:Light energy enters the process of photosynthesis when pigments absorb the light. In plants, pigment molecules absorb only visible light for photosynthesis. The visible light seen by humans as white light actually exists in a rainbow of colors. Certain objects, such as a prism or a drop of water, disperse white light to reveal these colors to the human eye. The visible light portion of the electromagnetic spectrum is perceived by the human eye as a rainbow of colors, with violet and blue having shorter wavelengths and, therefore, higher energy. At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.
Final answer:
Light supplies the energy that excites chlorophyll molecules in photosystems during the process of photosynthesis. This energy transfer initiates electron excitation necessary for the light-dependent reactions, with electrons in Photosystem II being sourced from the splitting of water.
Explanation:
The energy that excites the photosystems is supplied by light. In the process of photosynthesis, light energy is captured by chlorophyll molecules within the photosystems. Specifically, photons are absorbed by chlorophyll, which then transfers the energy to the primary electron acceptor. This energy then excites electrons, which in Photosystem II are sourced from the splitting of water, resulting in the release of oxygen. In Photosystem I, the excited electron comes from the chloroplast electron transport chain. Both photosystems, which contain a light-harvesting complex and a reaction center, absorb different wavelengths of light and are involved in different stages of the light-dependent reactions of photosynthesis.
100 points and Brainliest! Complete this punnett square. In the punnett square list the possible genotypes and the percent probability for each one. In the punnett square what percent chance of have homozygous recessive.
Here's what the punnet square should look like:
T t
T TT Tt
t Tt tt
There is a 25% (or 1/4) probability the offspring will have the TT genotype
There is a 50% (or 2/4) probability the offspring will have the Tt genotype
There is a 25% (or 1/4) probability the offspring will have the tt genotype.
Homozygous means the offspring will have either TT genotype or tt genotype (The Tt genotype is heterozygous). Recessive means the offspring will have the recessive trait, marked with a lowercase letter.
In this case, the homozygous recesssive genotype is tt and there is a 25% probability that the offspring will have this genotype.
I hope this helps you!
the whole answer is the image attached
Hope this helps. :)
Driving too fast for conditions or exceeding the posted speed limit can kill you.
a. true
b. false
The answer is true
This driver error was the cause, 21 percent occurred from going too fast for road conditions. Speeding also increases the likelihood that a crash will result in injury. ... Teens driving 40 mph in a 30 mph zone may think they're “only” going 10 mph over the posted speed limit.
The answer is A true because you can get in a really bad accident
Why are birds that inhabit areas with high acid deposition more likely to lay eggs with thin shells?
a.acid deposition acts as an endocrine disruptor that interferes with reproductive hormones in bird species.
b.high rates of cancer due to acid deposition impact birds ability to form eggs.
c.in acidic soils calcium, an important nutrient for eggshell production, washes away and so less is available to birds in their diets
d.acid deposition increases the effects of ddt which has already been implicated in thinning eggshells?
Answer:
C
Explanation:
When it precipitates, the acid in the soil becomes dissolved forming an acidic solution. The low pH solution dissolves the calcium ions in the soil washing them away in runoffs and also leaching them deeper into the soil. This depletes the calcium ions hence making them unavailable to the birds. Calcium intake is important in birds because the ion is a significant component of eggs shells (makes them strong and not brittle hence the eggs don’t break easily)..