Answer:
radiometric dating methods
Earthworms help farmers. Many farmers add them to their farmland because they help form rich soil to grow crops in.
Earthworms mix different layers of soil together by carrying humus from the surface down into the subsoil. Humus is a dark-colored substance made up of a variety of materials. Which two of the following are found in humus? NO LINKS OR WILL BE REPORTED ⚠
Answer:
I think it's A and D
Explanation:
I hope this is right ;)
Genetic Variation:Question 8
The process of meiosis results in four nuclei, each of which is
haploid and has a single set of unreplicated chromosomes. The
genetic composition of each single set of chromosomes differs from
the other sets of chromosomes due to the?
Answer: Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell.
Explanation:
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.
1) Identify 4 stimuli that cause a decrease in the number of producers, consumers, and decomposers living in an area.
2) What could be the effects in relation to the energy pyramid, population, and community of organisms within the environment.
Answer:
Temperature, humidity, food and water.
Explanation:
Temperature, humidity, food and water are the four stimuli that is responsible for the decrease in the population of producers, consumers, and decomposers living in that area. If the temperature is too high or too cold, the growth of the producer stops and the plants can't tolerate the temperature will die. The death of producers causes the death of consumers because consumers depend on these producers for food. The population of decomposer also decreases if the environment is too harsh because decomposers also requires suitable environment for growth and survival. There is adverse effect on the energy pyramid, population, and community of organisms within the environment if these stimuli are not present in suitable range.
Match the type of metamorphism to its cause. Impact ? Heat Contact ? Directed pressure Dynamic ? Meteorite Regional ? Surrounding pressure SUBMIT
Answer:
Contact Metamorphism - Heat
The heat is the main cause, cooling magma affects the rock adjacent to an intrusive body.
Dynamic Metamorphism - directed pressure
It takes place due to grinding two large blocks of rock in a fault zone which causes a directed pressure that leads to heat and the formation of these metamorphisms.
Regional - surrounding pressure
A heat and lithostatic pressure come from depth within the earth.
Impact - Meteorite
By collision of meteorite to earth very high amount of kinetic energy is converted instantaneously to heat and differential stress.
Question 11 (1 point) What prevents backflow of urine into the kidneys? O
the internal urethral sphincter
the angle of the ureter
the external urethral sphincter
the mitral valve
Answer:
There is an internal urethral sphincter at the meeting point between each ureter and the bladder to prevent the backflow of urine into the kidneys.
Explanation:
Answer: the angle of the ureter
Explanation: I took the test
_________ is a disease where patients cannot control their blood glucose levels
Answer:
Causes of type 1 diabetes: This is an immune system disease. Your body attacks and destroys insulin-producing cells in your pancreas. Without insulin to allow glucose to enter your cells, glucose builds up in your bloodstream. Genes may also play a role in some patients.
Explanation:
hope it helps
:D
the image depicts the anatomical structure of the forelimb of a dolphin and a bat, both mammals. Which hypotheses are consistent with the evolutionary relationship shown by this image? select ALL that apply.
a) bats are more closely related to birds than to dolphins do the similarity in flight
b) dolphins and bats share a common ancestor that is more recent than the one shared with birds
c) amino acid sequences for the cytochrome C analysis of these two species will also be similar
d) the dolphin in the back diverge under different selective pressures, which accounts for their differences
e) embryological comparisons of these two species will show homologies of each other than bats have with birds
Answer:
D. the dolphin in the back diverge under different selective pressures, which accounts for their difference
Explanation:
I hope this is helps you
Dolphins and bats share a common ancestor that is more recent than the one shared with birds.
Homologous bodiesHomologous organs are those that may or may not perform the same function, but have the same basic structure and the same embryonic development. This means, therefore, that individuals who have these organs have shared ancestry.
Whit this information, we can conclude that dolphins and bats share a common ancestor that is more recent than the one shared with birds.
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Which of the following best describes the function of the Golgi apparatus within plant and animal cells?
No links please!
Answer:
The Golgi apparatus
Explanation:
The Golgi apparatus packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination.
Which tissue also makes the glandular tissue in animals
Answer:
Epithelial cells
Epithelial cells often acquire additional specialisation as gland cells, which can secrete substances at the epithelial surface. Sometimes a portion of the epithelial tissue folds inward, and a multicellular gland is formed. This is glandular epithelium.
Forensics
Plastic bags used as evidence containers after fires can produce dangerous gases.
A. True
B. False
Answer:
A. True
Explanation:
I took it on a test it's correct!
Answer:
This is definitely true
Explanation:
Which cell structures are found in plant, animal and bacterial cells?
I think its the ribosome and the vacuole, as the two features are found in those 3 types of cells. Let me know if im mistaken!
Footprints are found at the crime scene. Investigators take note of the scalar quantity of the footprints. Analyzing the scalar quantity of the footprints can give them clues about everything except
direction
length
speed
energy
Answer:
energy
Explanation:
Scalar quantities are numerical values, like mass, distance, or speed.
I’m marking as brainliest! Answer the correct answer !
Answer: B
Explanation: took the test 3 days ago and teacher went over the correct answer and i got it right hoped this helped :) PS: i think its the same test as mine is the second question . In humans, the first seven pairs of rib bones are connected to the sternum (breastbone) by cartilage. Which of the following statements describes the main reason why cartilage is important in these bone-to-bone connections?
What changes were caused by the breakup of Pangaea?
a) change in climates as landmasses moved closer or further from the equator
b) new oceans formed
c) all of these were changes caused by the break up of Pangaea
d) new mountain ranges formed
Answer: Option C. All of these things happened
Answer:
A
Explanation:
Greenhouse climate conditions that enveloped the Earth for long periods in the deep past millions of years before humans added their current substantial contribution were caused by the break-up of the supercontinent Pangaea.
Use the information gathered in the A Three Point Test Cross animation to answer the question. Genes H and K are linked and are known to be 3.5 m.u. apart on the same chromosome. What is the recombination frequency between H and K
Answer:
3.5 percent (3.5%)
Explanation:
In genetics, crossing over or 'recombination' refers to the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis I. The map units (m.u.), also known as centimorgans, represent a measure of genetic linkage between genes/loci located on the same chromosome. One map unit (1 m.u.) is equal to a 1 percent chance that two gene/loci (in this case, genes H and K) will be separated during meiosis by recombination. In the example above, it means that among their progeny, 3.5 percent (3.5%) will be recombinant for the two genes (H and K), and 96.5 percent (96.5%) will have the parental combination of these genes.
Muscle Name Adjacent Bones Adjacent Muscles
Deltoid
Biceps brachii
Triceps brachii
External oblique
Gastrocnemius
Quadriceps femoris
1. Deltoid: The deltoid muscle is located in the shoulder region. It attaches to the scapula (shoulder blade), clavicle (collarbone), and humerus (upper arm bone).
It works in conjunction with the trapezius and rotator cuff muscles to facilitate shoulder movements and stability.
2. Biceps brachii: The biceps brachii is a muscle in the upper arm. It attaches to the radius (one of the forearm bones) and the humerus. The brachialis and brachioradialis are adjacent muscles that also contribute to forearm and elbow movements.
3. Triceps brachii: The triceps brachii is located at the back of the upper arm. It attaches to the humerus and ulna (one of the forearm bones). The anconeus and brachialis are adjacent muscles that assist in elbow movements.
4. External oblique: The external oblique is one of the abdominal muscles. It attaches to the ribs and the iliac crest, which is part of the hip bone. It works in conjunction with the internal oblique and rectus abdominis muscles to provide trunk rotation and lateral flexion.
5. Gastrocnemius: The gastrocnemius muscle is situated in the calf region of the leg. It attaches to the femur (thigh bone) and the calcaneus (heel bone).
It forms the prominent part of the calf and works with the soleus and plantaris muscles to flex the foot and assist in movements like walking, running, and jumping.
6. Quadriceps femoris: The quadriceps femoris is a group of muscles in the front of the thigh. It attaches to the femur, patella (kneecap), and tibia (shin bone).
The hamstrings (biceps femoris, semitendinosus, semimembranosus) and sartorius are adjacent muscles that have an antagonistic relationship with the quadriceps, helping to flex the knee and extend the hip.
These muscle names, along with their adjacent bones and adjacent muscles, provide a basic understanding of their anatomical relationships and functional roles in the body.
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How is the nervous system different from the endocrine system? *
It is faster and depends on chemical messenger (hormone
It is slower and depends on neurotransmitter
They are the same systems
It is faster and depends on neurotransmitter
Answer:
It is faster and depends on chemical messenger (hormone
I guess this one is right, to be sure ask from someone else 2
Explanation:
One of the most significant differences between the nervous system and endocrine system is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.
the transfer of energy by the movement of fluids or gases with different tempratures is called
Answer: Thermal energy can also be transferred by a method called convection.
Explanation:Convection is the transfer of thermal energy in a fluid by the movement of warmer and cooler fluids from one place to another. A fluid is a substance that can flow. It can be a liquid or a gas
Cree usted que las diferencias anatómicas entre los individuos de la humanidad surgieron como respuestas a acondicionamientos ambientales
Answer:
no, la selección natural opera sobre los fenotipos seleccionando aquellos que mejor se adaptan a su medio ambiente. En consecuencia, el medio ambiente actúa como agente selectivo pero no es el disparador de los cambios fenotípicos/anatómicos
Explanation:
Jean-Baptiste de Lamarck fue un naturalista francés el cual propuso que los individuos se adaptaban para sobrevivir a su ambiente, y que estos cambios fenotípicos/anatómicos eran transmitidos a la progenie. Por otra parte, Darwin propuso la teoría de la evolución por selección natural la cual establece que aquellos individuos mejor adaptados a su ambiente tiene más chance de sobrevivir y reproducirse, y con lo cual también tienen más chances de trasmitir sus rasgos anatómicos/fenotípicos a la siguiente generación. Hoy en día, la teoría de la evolución de Darwin es ampliamente aceptada por la comunidad científica y permite explicar la variación existente entre individuos. De este modo, de acuerdo a la pregunta planteada, las diferencias anatómicas/fenotípicas entre los individuos de la humanidad no surgieron como respuesta al acondicionamiento ambiental: el ambiente funciona como agente selectivo, seleccionado aquellos individuos mejor adaptados a sobrevivir en cada ambiente en particular.
What benefit did land plants offer as they became more abundant ?
Paramecium are:
mammals
protozoa
monotremes
reptiles
Answer:
protozoa(b)
Explanation:
protozoa(b)
recall what microorganism are
Answer:
very very .. tiny tiny tiny organisms
Answer:
a microscopic organism, especially a bacterium, virus, or fungus.
Explanation:
The main difference between the gravitational force and electrical force is that
1. Gravitational force can only push
2. Gravitational force can pull and push
3. Electrical force can only pull
4. Electrical force can pull and push
The difference between the gravitational force and electrical force is that the electrical force can pull and push while the gravitational force is only attractive which means it can only pull.
What do you mean by Gravitational force?Gravitational force may be defined as a conservative force by which the earth allures other objects by mass.
The basic difference between both two forces is that the gravitational force can only attract masses, while electrostatic force either attracts or repel when two charges of the same sign are gathered.
Therefore, the correct option for this question is D.
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help..................................................
Option F. It is moist and cool with decaying debris.
Answer:
F. It is moist and cool with decaying debris.
Explanation:
I know this because an earth room always needs their supplement from the dirt in order to stay moist and wet during any weather.
Help! ASAP, this is due tomorrow and I’m struggling as this isn’t what they taught us. The question is: Explain why the bacteria shown (E. coli) have a second membrane outside the
peptidoglycan.
The second membrane protects e.coli (Gram-negative bacteria) against a harsh environment.
The outer membrane indirectly helps stabilize the inner membrane as peptidoglycan layer in Gram-negative bacteria is relatively thin than gram positive bacteria ( they have multilayer pepdtidoglycan )
The second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
What is an outer membrane?A double membrane is present in gram-negative bacteria, and it provides both protection and nutrition for survival.
The outer of these membranes is known as the outer membrane (OM), and it comprises a variety of completely integrated membrane proteins that carry out a number of crucial cellular processes, including nutrition absorption, cell adhesion, cell signaling, and waste export.
Several of these outer membrane proteins (OMPs) for pathogenic strains also function as virulence factors for nutrition scavenging and evading host defense systems. OMPs are distinct from other membrane proteins in that they have a -barrel fold and can vary in size from 8 to 26 strands while still carrying out a wide range of cellular activities.
Although these OMPs play crucial roles in cell viability and pathogenicity, the precise mechanism behind their synthesis into the OM is still largely unclear.
However, during the past ten years, there has been a tremendous advancement in our understanding of the routes and processes that shape a nascent polypeptide into a functioning OMP within the OM.
Here, we will go through a few of these new discoveries that have improved our knowledge of how Gram-negative bacteria produce OMPs, from their production in the cytoplasm to their folding and insertion into the OM.
Therefore, the second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
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state what action muscles can complete
Answer:
Flexion
Extension
Abduction
Addiction
Explanation:
hope it helps
What are the two stages of cellular respiration
Answer:
animal cell.
Explanation:
plant cell.
Ian is an 18-year-old gymnast training at a private gym with many other male and female gymnasts. he is competing at an advanced level and is likely to make the next Olympic team. Lately, he has found that some of his balance and strength moves on the rings and parallel bars have become more difficult. He has gone through a bit of a growth spurt and gained approximately 5 pounds over the last year. He suspects the weight gain is causing his performance difficulties. He decides to try a weight-loss program that will help him lose weight before his next big competition in 6 weeks. He is not sure how many calories to consume and therefore arbitrarily decides to eat 1,500 calories per day.
1. Which assessments are required to determine whether Ian needs to lose weight?
2. What type of diet and exercise plan would you recommend for Ian?
3. What additional concerns do you have for Ian's health and sport performance?
Answer:
Explanation:
(1.)
Assessments needed to reduce Ian’s body weight:
A weight-loss program should allow the loss of weight should be fat loss, and the increase of weight should be body muscle mass. Weight reduction should be accompanied by an acceptable exercise regimen (both strength and conditioning). A well-balanced diet with sufficient energy (calories), carbohydrates, protein, and fat should be part of every weight-loss regimen. Excessive exercise resulted in weight loss. Using anorexic medications, laxatives, insulin, diet tablets, stimulants, diuretics, dietary products, or any lawful or illicit drugs and/or nicotine should be banned at all levels.
(2)
type of Diet:
Every day, Ian must eat three meals and just a snack. A fiber-rich cereal with skim milk and fresh fruit can be a better way to start the day.
After that, have a bologna sandwich on the whole bread with fruit or a big vegetable-rich salad together with a small turkey sandwich in addition to a cup of skim milk for lunch.
Poultry hen should be served with potatoes (baked), mixed vegetables, and skim milk for dinner. An early workout snack of a small butter muffin or yogurt combined with cereal should also be included.
Exercise Plan:
i) Bodyweight fat recovery can be supported by proper and secure aerobic activity.
ii) The right kind of aerobic exercise is extremely beneficial for weight loss.
3. Gymnastics is a visually appealing discipline that necessitates speed, strength, and coordination. Most high-level gymnasts eat less than the recommended amount of calories and certain nutrients for their age and training load, according to dietary tests. Young gymnasts, in particular, must absorb enough energy and nutrients to satisfy the demands of growth, exercise, performance, and tissue conservation. Poor energy supply, disordered eating habits, and eating disorders are all factors that can damage a gymnast's long and short-term health. Some gymnasts cross the line into extreme, treatable eating disorders by dieting and using infective weight-loss strategies.
In light of these considerations, Ian should pay attention to his health and diet. Ian should limit his consumption of added sugar intake and increase his fiber intake to help him achieve his body fat targets. Gymnasts can consume at least 1.4–1.8 grams of carbohydrates each pound (3–4 g/kg) per day. Increased protein consumption helps to reduce the amount of muscle lost over a weight-loss cycle. Per day, gymnasts can eat 0.8–1.2 g/lb (1.8–2.7 g/kg) of protein.
Ian would be able to shed weight and prevent an eating disorder in this manner.
. A researcher studies the evolutionary relationships between influenza viruses by comparing the genomic sequences of the viruses found in pigs, ducks, and humans in a given year. When evaluating the viruses that had infected these hosts the previous year, she identifies a cross-species transfer from humans to pigs. This information supports the hypothesis that cross-species transfer leads to more severe disease if during the previous year _______ suffered a severe influenza pandemic.
Answer:
pigs
Explanation:
Influenza is an infectious disease caused by influenza viruses, which can be divided into four types A, B, C and D. In humans, influenza A and B viruses are known to cause epidemics, while A viruses are known to cause pandemics. Influenza viruses are also found in birds and mammals (e.g., dogs, cats, cattle pigs and horses). Cross-species virus transmission refers to the transmission process of infectious viruses between hosts from different species. Several viruses that may cause severe diseases in humans have originated from animal species, e.g., avian influenza A virus that can be transmitted to humans through an intermediate host (e.g., pigs). Other examples of cross-species virus transmission include the Ebola virus and Hantaviruses. It has been suggested that cross-species transmission is a common phenomenon in rapidly evolving viruses.
Under normal conditions, hyperventilation will eventually lead to unconsciousness because Group of answer choices blood pH drops significantly. it leads to respiratory alkalosis. there's too much carbon dioxide in the blood. Two of the answers are correct. very high PO2 leads to an excess of ATP production and neural inhibition.
Answer:
The correct answer is ''it leads to respiratory alkalosis.''
Explanation:
Respiratory alkalosis is defined by pH values> 7.45, and is characterized by an increase in pH and a decrease in pCO2. The most frequent cause is alveolar hyperventilation. Alveolar hyperventilation causes respiratory alkalosis, presenting a decrease in ionic calcium and in some cases tetany. To compensate for this increase in pH, renal HCO3 excretion is increased, but this process requires 24-48 hours. Respiratory alkalosis - primary or compensatory - is defined by hypocapnia, a finding that involves alveolar hypoventilation. The symptoms of acute respiratory alkalosis, the "hyperventilation syndrome," vary only in intensity from those of any alkalosis - most notably disturbances in neuromuscular function (eg, paresthesias, tetany, tremor). A constellation of symptoms have been described with respiratory alkalosis, including increased intracranial pressure, decreased consciousness, tachycardia, hypertension, carpopedal spasm, anxiety, dizziness, and a feeling of vertigo.