Which of the following best defines change in a species over time?
Development
Evolution
Cellular Respiration
Adaptation
Answers
Answer:
Evolution
Explanation:
Related Questions
Michael wants to classify an organism that she is studying in Lab the organism is multicellular and makes it on food and is unable to move around it’s environment the organism that Michael studying can mostly like likely be classified in kingdom
Answers
Which correctly lists the digestive system careers from the least amount of formal education to the most?
•dietitian, endoscopy technician, orthodontist
•gastroenterologist,
dietitian, colorectal surgeon
•orthodontist, colorectal surgeon, gastroenterologist
•endoscopy technician, orthodontist, gastroenterologist
Answers
Answer:
endoscopy technician, orthodontist, gastroenterologist
Answer:
endoscopy technician, orthodontist, gastroenterologist
Explanation:
took the test.
Crash course: ecology- links in the chain
I really need help fast because struggling on this since last week, and this week quarter is about to end. I’m giving a higher point if someone gets this correct to pass this year! move on as a junior :)
Answers
We can see here that the solution are:
1. A collection of living and nonliving things interacting in a specific place is an ecosystem.
2. Ecosystem ecology looks at how energy and nutrients come into an ecosystem, move around in it, and get spit back out.
3. Ecosystems have an edge.
4. Without producers, there are no animals.
What is an ecosystem?An ecosystem refers to a community of living organisms, including plants, animals, and microorganisms, interacting with each other and their physical environment. It encompasses both the biotic (living) and abiotic (non-living) components of a specific area or habitat
5. The total weight of living things in an ecosystem is its biomass.
6.In an ecosystem, energy means the ability to do work or cause a change.
7. Autotrophs gather energy from the environment and make it into cool stuff (organic compounds).
8. The size and scope of an ecosystem has a lot to do with the amount of things like available resources, habitat diversity, and connectivity.
9. If a cricket has 1 calorie of energy, it needed to eat 1 calorie of energy from lettuce or something.
10. Organisms only hold onto about 10% of the energy they ingest.
11. It's safest to eat lower on the food chain.
12. Things higher on the food chain can have HIGHER concentrations of toxins.
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what are 3 events that led to the civil war?
Answers
Answer:
Economic and social differences between the North and the South.
States versus federal rights.
The fight between Slave and Non-Slave State Proponents.
Growth of the Abolition Movement.
Dred Scott Decision.
The election of Abraham Lincoln.
Explanation:
.
What kind of reproduction dose most plants go through?
(i know the answer but do you)
Answers
Answer:
asexual
Explanation:
The organic compounds in living things are organized into groups: carbohydrates, lipids, proteins, and nucleic acids.
Which two macromolecules play a central role in Transcription and Translation?
lipids and nucleic acids
proteins and carbohydrates
carbohydrates and lipids
nucleic acids and proteins
Answers
nucleic acids and proteins
carbohydrates and lipids
Please help me with this
Answers
2. C
3. D
4. B
5. C
Hope this helps :)
Do you believe that the government should enforce automobile safety regulations?
Answers
Answer:
I do believe that the government should enforce automobile safety regulations
Explanation:
because if we look at the graph above, we can see that more people are saved from death by the safety regulations so I say yes, the government should enforce safety regulations.
Government should enforce automobile safety regulations to ensure the safety of drivers, passengers, and pedestrians on the roads.
What are automobile safety regulations?Automobile safety regulations are a set of rules and standards established by governments and regulatory bodies to ensure the safety of drivers, passengers, and pedestrians on the roads. These regulations cover various aspects of vehicle design, construction, and operation, including safety features such as seat belts, airbags, anti-lock brakes, and crash protection systems. They also cover other areas, such as emissions control, fuel efficiency, and the use of alternative fuels.
The purpose of these regulations is to reduce the number of injuries and fatalities resulting from automobile accidents, as well as to promote sustainable and environmentally friendly transportation. Compliance with these regulations is typically mandatory for automobile manufacturers and may involve regular safety inspections and testing.
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Which statement accurately compares the roles of radiation and conduction
in transferring heat on Earth?
A. Radiation transfers heat from the sun to the land surface, while
conduction transfers heat from the land surface to the
atmosphere.
B. Radiation transfers heat from the land surface to the atmosphere,
while conduction transfers heat within the atmosphere.
C. Conduction transfers heat from the sun to the land surface, while
radiation transfers heat from the land surface to the atmosphere.
D. Conduction transfers heat within the atmosphere, while radiation
transfers heat from the sun to the land surface.
Answers
Answer:d
Explanation:
o
Please answer the questions in the image.
Answers
Obligate anaerobes are organisms that lack the catalase E-Coli bacteria and superoxide dismutase (SOD) enzymes.
Microorganisms known as obligatory anaerobes are unable to tolerate or survive in the presence of oxygen. For their life, they are reliant on anaerobic (oxygen-free) settings. This is due to the environment that oxygen generates, which is poisonous to these species. Reactive oxygen species (ROS) such superoxide anions Mnin E- Coli, hydrogen peroxide, and hydroxyl radicals are more frequently produced in anaerobic environments. These ROS have the potential to harm cellular building blocks like proteins, lipids, and DNA, which could result in cell death.
In order to protect cells from the destructive effects of reactive oxygen species, the enzymes superoxide dismutase (SOD) and catalase transform ROS into less dangerous molecules. Superoxide anions are changed by SOD into hydrogen peroxide, which catalase then breaks down into water and oxygen. Obligate anaerobes are extremely vulnerable to ROS damage because they lack these enzymes (Cu-Mn).
In Eukaryotic cells Obligate anaerobes can be found in many different settings, such as soil, water, and animal gastrointestinal tracts. They are crucial to numerous ecological processes, including the decomposition of organic materials, nitrogen fixation, and carbon cycling. However, some obligatory anaerobes have a crucial role in medicine because they can infect people with impaired immune systems and contribute to the development of specific diseases.
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What are the six main things that happen in the boil?
Answers
The six main things that happen in the boil are sanitization, hop addition, evaporation, coagulation of proteins, maillard reactions, and extraction of sugars and other compounds.
In sanitization, the boil kills off any harmful bacteria or microorganisms present in the wort, ensuring a clean fermentation process. Hop addition are added at various stages during the boil to provide bitterness, flavor, and aroma to the beer. Water evaporates during the boil, which concentrates the wort and helps achieve the desired original gravity for the beer.
In coagulation, proteins in the wort coagulate and form clumps called "trub," which can be removed after the boil to promote clarity and stability in the finished beer. Maillard reactions are the chemical reactions between amino acids and reducing sugars occur during the boil, contributing to the color and flavor development in the beer. Sugars and other compounds from the malt are extracted and dissolved into the boiling water, creating the basis for the final beer's body, color, and flavor profile.
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Which is a renewable resource?
petroleum
wood
iron
coal
Answers
Answer:
wood :)
Explanation:
Renewable resources are restored by natural processes faster than they are consumed by humans. Option 2 is correct. Wood is a renewable resource.
What is a renewable resource?Renewable resources are those that can be restored by nature constantly. This is achieved through natural processes that occur faster than the human consumption rate.
However, if they are over exploded, their restoration capability is at risk because there is not enough time for processes to complete before being used.
What is a unrenewable resource?These are natural resources that can not be replaced for new ones once human consumes them. They are not restored, or they last too much in being restored.
Unrenewable resources exist in a limited and concrete quantity, such that if the consumption rate is too high, they will end by disappearing.
Among the options,
petroleum ⇒ unrenewable resourcewood ⇒ renewable resourceiron ⇒ unrenewable resourcecoal ⇒ unrenewable resourceThe correct option is number 2. Wood.
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what type of speciation is driven by character displacement, especially when that characteristic opens up a new food supply and is often referred to as adaptive radiation?
Answers
The type of speciation that is driven by character displacement, especially when that characteristic opens up a new food supply and is often referred to as adaptive radiation is called "sympatric speciation".
What is Sympatric Speciation?Sympatric speciation is a process of evolution that leads to the emergence of new species from a single ancestral species, without geographic isolation. This type of speciation occurs when populations of a single species live in the same geographic location but evolve in different ways due to factors such as genetic mutations, chromosomal changes, or differences in ecological niches.
Over time, these differences accumulate and lead to reproductive isolation, creating new species.
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why were many important scientists drawn to universities during the scientific revolutions?
Answers
Answer:
universities allowed scientist to investigate what they thought even if they were contradicted catholic teachings.
Which ones are true or false?
Agglutination will most likely occur if a recipient with Type B blood receives Type AB blood from a donor.
Large veins require their own blood supplied by smaller blood vessels called microvasa.
Parathyroid hormone decrease blood calcium levels by stimulating osteoblasts and increasing calcium in the urine.
Most lymphocytes circulate continuously in the bloodstream.
Insulin is secreted by alpha cells of the pancreas in response to elevated glucose levels following a meal.
Basophils release histamine and are phagocytic
Metastasized cancer cells cannot enter the lymph system because of the continuous basement membrane surrounding lymphatic capillaries.
Eosinophils are derived from the myeloid stem cell line
When compared with erythrocytes, leukocytes are smaller and have a nucleus.
Answers
1. True: Agglutination will most likely occur if a recipient with Type B blood receives Type AB blood from a donor.
2. False: Large veins receive blood supply from smaller blood vessels called vasa vasorum.
3. False: Parathyroid hormone increases blood calcium levels by stimulating osteoclasts and reducing calcium in the urine.
4. True: Most lymphocytes circulate continuously in the bloodstream.
5. False: Insulin is secreted by beta cells of the pancreas in response to elevated glucose levels following a meal.
6. False: Basophils release histamine but are not phagocytic.
7. False: Metastasized cancer cells can enter the lymph system, as the basement membrane surrounding lymphatic capillaries is not continuous.
8. True: Eosinophils are derived from the myeloid stem cell line.
9. False: When compared with erythrocytes, leucocyte are larger and have a nucleus.
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which finding provides evidence that opioid drugs enhance the brain reward system in animal models?
Answers
Answer:
Opioids are currently the most effective pain relieving pharmaceuticals. However, they are also rewarding and their repeated use can lead to dependence and addiction. In fact, addiction to opioid analgesics is a growing socioeconomic and health problem with potentially serious consequences documented by a rise in deaths due to overdose [1, 2]. A critical CNS locus for opioid reward is the ventral tegmental area (VTA, glossary, vide infra). Recent work indicates that there is great anatomical and pharmacological heterogeneity in VTA neurons and that there are numerous opioid
[Please HELP] Two populations of squirrel became separated by a large canyon. When scientists introduced members of one population into the other, they would no longer interbreed. Because of this, the squirrels were classified as two different species. What have these two populations of squirrels undergone?
A. Succession
B. Speciation
C. Biomagnification
D. Genetic engineering
Answers
Question 8 options: kills bacteria but does not affect endospores. does not affect non-enveloped viruses. is used in gaseous form. is very good for use on heat
Answers
Gaseous sterilization kills bacteria, but not endospores or non-enveloped viruses, and is suitable for heat-sensitive items.
Gaseous sterilization is a method that effectively kills bacteria but doesn't affect endospores or non-enveloped viruses. This technique is particularly useful for heat-sensitive materials, as it avoids the high temperatures required in other sterilization methods.
The process involves using chemicals like ethylene oxide or hydrogen peroxide in a gaseous form, which penetrate items and eradicate microorganisms.
This method is widely used in medical settings, such as sterilizing surgical instruments and medical devices.
However, it's essential to ensure proper ventilation and adherence to safety protocols, as these gases can be hazardous to human health.
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10. Are the other phases of mitosis equal (or close)? Suggest a reason for any differences in the timing of mitosis phases.
Answers
The other phases of mitosis are not equal in duration. The time spent in each phase can vary depending on the cell type, the stage of development, and other factors.
Explanation:
For example, the duration of prophase can vary widely depending on the complexity of the chromosome structure, the degree of chromatin condensation, and the presence of any DNA damage or repair mechanisms. Metaphase is usually a relatively brief phase, lasting only a few minutes, as the spindle fibers align the chromosomes at the equatorial plate. Anaphase, on the other hand, can be relatively long, as the sister chromatids are separated and pulled towards opposite poles of the cell. Telophase is generally shorter than prophase or anaphase, as the spindle apparatus disassembles and the nuclear envelope reforms.
The timing of mitotic phases can be influenced by various factors, including the nature of the signal that triggers cell division, the availability of nutrients and growth factors, and the presence of DNA damage or other cellular stresses. Additionally, the rate of mitosis can vary depending on the cell type and the developmental stage, with rapidly dividing cells such as embryonic cells and cancer cells typically exhibiting shorter cell cycles than non-dividing cells.
Compare and contrat exocrine and endocrine gland. Provide an example of an exocrine gland, an exocrine ecretion, an endocrine gland, and an endocrine ecretion
Answers
The primary distinction between the two types is that endocrine glands secrete substances directly into the bloodstream, whereas exocrine glands deliver their products through a ductal system to an epithelial surface. Exocrine secretions originate in the acinus, a modest cell cluster at the start of glandular ducts.
What is exocrine and endocrine glands ?A gland that produces bodily fluids such saliva, milk, tears, sweat, and digestive juices and releases them through a duct or other orifice to a body surface. Sweat, lacrimal, salivary, mammary, and digestive glands in the intestines, stomach, and pancreas are a few examples of exocrine glands.
The circulation receives hormones from endocrine glands. This enables the hormones to reach cells in different regions of the body. The endocrine hormones aid in the regulation of mood, growth and development, organ function, metabolism, and reproduction. Each hormone's release rate is controlled by the endocrine system.Learn more about Exocrine and endocrine glands here:
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what are the similarities between an open-type split-phase motor and a capacitor-start motor?
Answers
The open-type split-phase motor and the capacitor-start motor are two types of single-phase induction motors. They have similar characteristics such as operating at low speeds and requiring a starting mechanism.
Single-phase induction motors are used for many applications in homes and industries. There are different types of single-phase induction motors, including the open-type split-phase motor and the capacitor-start motor. These two motors have the following similarities.
Speed: The open-type split-phase motor and the capacitor-start motor operate at low speeds.
Starting mechanism: Both motors require a starting mechanism to initiate motion. The starting mechanism in the open-type split-phase motor is a centrifugal switch, while the capacitor-start motor uses a capacitor.
Construction: The construction of both motors is similar, with a stator and a rotor. The stator has a winding, and the rotor has a squirrel cage.
Efficiency: Both motors have very low efficiency as compared to the other types of motors.
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Which hormone released by the highlighted structure inhibits the secretion of fsh only inhibin?
Answers
Inhibin hormone released by the highlighted structure inhibits the secretion of FSH only.
What is inhibin hormone?A protein called inhibin is secreted by the granulosa cells in women and the Sertoli cells in men. It decreases the amount of LH-releasing hormone in the hypothalamus and prevents the pituitary gland from producing and releasing follicle-stimulating hormone.Inhibin is a factor in the feedback control of FSH secretion in both males and females going through puberty. Follistatin suppresses FSH-subunit expression like inhibin, whereas activin enhances it, which in turn influences FSH production and secretion.Inhibin A is secreted by the corpora lutea and dominant ovarian follicles in women, which helps to explain why levels are so high during the late follicular and luteal stages. During the late luteal and early follicular phases of the menstrual cycle, inhibin B is reciprocally raised.Learn more about inhibin here:
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Disclaimer: The question given in the portal is incomplete. Here, The complete question.
Question: Which hormone released by the highlighted structure inhibits the secretion of FSH only?
the ____ root of the spinal cord contains only sensory nerve fibers.
Answers
All of the spinal cord's dorsal root's nerve fibers are sensory. One of the two roots that arise from each spinal segment and come together to form a spinal nerve is the dorsal root.
Dorsal rootFrom the body to the spinal cord, the dorsal root transmits sensory data such as pain, temperature, touch, and proprioception. The dorsal horn of the gray matter in the spinal cord is where the sensory fibers enter and connect with interneurons, which transmit the information to other neurons or the brain.The ventral root, in contrast, solely has motor nerve fibers, which transmit spinal cord impulses to the body's muscles and glands. The spinal nerve, which connects the spinal cord to the peripheral nervous system, is made up of the dorsal and ventral roots and leaves the vertebral column through an intervertebral foramen.There are three primary categories of sensory nerve fibers:
A-delta fibers are myelinated nerve cells that communicate information regarding localized, sharp pain, changes in temperature, and mechanical stimuli. Compared to C fibers, they are quicker and have a smaller diameter.Unmyelinated nerve fibers called C fibers communicate information about itching, temperature fluctuations, and dull, agonizing pain. Compared to A-delta fibers, they are slower and have a bigger diameter.A-beta fibers are myelinated nerve cells that communicate information regarding vibration, pressure, and touch. Of all the sensory fibers, they are the biggest and swiftest.learn more about dorsal root here
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The back bone of DNA and RNA is composed of _____. DNA is double stranded due to interactions between adenine,cytosine,guanine, and thymine, which are ____ Uracil is a
Answers
The backbone of DNA and RNA is composed of sugar phosphate. DNA is double-stranded due to interactions between adenine, cytosine, guanine, and thymine, which are nucleotide bases. Uracil is a pyrimidine nucleotide base.
DNA is the hereditary material of humans and almost all organisms. It carries genetic information. DNA is deoxyribonucleic acid and RNA is ribonucleic acid. DNA is double-stranded while RNA is single-stranded. Both DNA and RNA are protein derivatives. The base is formed of sugar phosphates. Both these carry nucleotide bases on them. Adenine, guanine, cytosine, uracil, thymidine, etc are examples of nucleotide bases. Among that adenine and guanine are purines. Cytosil Uracil and thymidine are pyrimidines.
For more details on purines and pyrimidines, see this question.
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How is active transport different
from facilitated diffusion?
A. Facilitated diffusion does not use protein
channels.
B. Active transport requires energy.
C. They are very similar processes.
Answers
Answer:
B
Explanation:
active transport requires energy (ATP) where as facilitated diffusion is a passive process meaning it doesn't require energy.
I hope this helps
Active transport requires ATP which is energy whereas facilitated diffusion doesn’t not.
Hope this helps and please like:))
Please help I’ll make as brainliest.
Answers
Answer:
its the second one because genetic engineering is somelike fake
Answer:
B
Explanation: It could be C but Im pretty sure its b
a. brainstem ventilation area b. brainstem rhythmicity area c. medullary ventilation area d. medullary rhythmicity area
Answers
As the dorsal group receives impulses from the vagus and glossopharyngeal nerves as well as from peripheral chemoreceptors and is in charge of producing inspiratory motions, the medullary respiratory center serves as the primary center for inspiration.
Three primary groups—two in the medulla and one in the pons—make up the respiratory center. The ventral respiratory group and the dorsal respiratory group are the two groups in the medulla. The pneumatic center and the apneustic center are the two components of the pontine respiratory group in the pons. The medulla oblongata's respiratory center regulates breathing on a minute-by-minute basis. Respiratory rhythm is not produced by a homogeneous population of pacemaker cells like the cardiac system.
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TAFs ____ and ____ make contact with the DPE.
a. 4 and 9
b. 6 and 9
c. 12 and 4b
d. 1 and 5
Answers
The correct answer is b. 6 and 9. TAFs (Terminal Aerodrome Forecasts) are official weather forecasts for specific airports that are valid for a period of 24-30 hours.
These forecasts provide important information to pilots, including visibility, cloud cover, wind direction and speed, and precipitation. DPE (Designated Pilot Examiner) is a qualified pilot who is authorized by the FAA to conduct practical tests for pilots seeking certification or ratings. When a pilot is scheduled for a practical test, they will need to make contact with the DPE to confirm the details of the test, including the date, time, and location. In this case, TAFs 6 and 9 are likely the forecasts for the airports where the practical test will be conducted, and the pilot will need to contact the DPE to confirm the details and ensure that the weather conditions are suitable for the test.
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Chemotherapeutic treatment for breast cancer depends on the absence or overexpression of the __________ gene(s).
Answers
Chemotherapeutic treatment for breast cancer depends on the absence or overexpression of the HER2 gene(s).
The absence or overexpression of the HER2 gene(s) helps to decide the chemotherapeutic treatment for breast cancer. When a tumor has a gene called human epidermal growth factor receptor 2 (HER2), it is defined as HER2-positive cancer. Breast cancer that is HER2-positive is likely to develop more quickly and aggressively than breast cancer that does not have this gene.
The medications Herceptin and Perjeta are examples of targeted therapy medications that are often used to treat this type of cancer. These medications focus on the HER2 protein, which is a protein that is produced by the HER2 gene.
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what can happen if the nerves in your spinal cord get damaged
Answers
Answer:
You may experience paralysis
Explanation:
Spinal nerves are responsible for transmitting signals to all parts of the body, so if they are damaged, some messages may not get through, thus not being able to control the body part. (Paralysis)
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