Answer:
The counter-current multiplier or the countercurrent mechanism is used to concentrate urine in the kidneys by the nephrons of the human excretory system. The nephrons involved in the formation of concentrated urine extend all the way from the cortex of the kidney to the medulla and are accompanied by vasa recta.
Name the chemical signals which ants use to send messages to other ants.
Answer:
The most important way that ants communicate with other colony members is through unique chemicals called pheromones. Using their antenna to “smell” the pheromones, ants can communicate everything from colony activity to where food is located.
Explanation:
How does exhaling remove waste from the body? Explain the systems that make this happen, using complete sentences.
Answer:
THERE IS A SYSTEM OF BODY CALLED THE EXECTORY SYSTEM
Explanation:
The organs of this system get rid of a certain waste. The skin gets rid of sweat. The lungs get rid of carbon dioxide and water vapor. The liver gets rid of bile, which, in addition to breaking down fats, is partially made up of the breakdown of red blood cells. The kidneys get rid of toxins from the blood. The large intestine gets rid of undigested food. in this way the Dermal, Respiratory, Lymphatic, Urinary, and Digestive Systems work together to get rid of wastes.
1 point
*
What is the domain?
Archaea
Bacteria
Eukaryota
Explanation:
Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell.
What is a normal distribution of phenotypes
Answer:
ima be honest i did not know so i had to look it up so i hope this helps?
Explanation:
Terms in this set (9)
normal distribution the frequency is highest for the the middle, or mean phenotype, and lowest for the ends, or extreme phenotypes
what phenotype has the greatest frequency in a trait that follows a normal distribution? ...
microevolution the observable change in the allele frequencies of population over time
what is a function of cardial muscle
2) Nichelle was wearing a bright red shirt in a very dark room. What color
did her shirt appear to the people with her in the room?
-0)
A) green
B) black
C) purple
D) dark read
Evolution of a species acts on the of the species, not the .
Answer:
population.
Explanation:
hope this helps
Answer:
1- Population 2- Individuals
Explanation:
"Evolution of a species acts on the-
✔ population
of the species, not the-
✔ individuals." (Correct on edg)
(I added both since it's a two-part question on edg. The answer to your question is population)
True or False: All antibiotics work the same by attacking the cell membrane of bacteria.
A. True
B. False
Answer:
True
Explanation:
Many antibiotics, including penicillin, work by attacking the cell wall of bacteria. Specifically, the drugs prevent the bacteria from synthesizing a molecule in the cell wall called peptidoglycan, which provides the wall with the strength it needs to survive in the human body.
What differences would you expect to observe between an igneous intrusion into sedimentary rock and an igneous rock where sedimentary rock had formed on top of it?
(that is the question- there are no ABC answers. this isn't on eguenity)
I'm not sure, sorry.
I would recommend asking a trusted adult or teacher.
Let p represent the dominant allele for a trait and q represent the recessive allele for that trait. If the frequency of q is 0.2, then what would be the frequency of the heterozygotes in the population
The frequency of the heterozygotes in the given population is 2pq which is O.32, where p represents the dominant allele for a trait and q represents the recessive allele for that trait.
What do you mean by Heterozygotes?The heterozygotes may be defined as the presence of two different alleles at a particular gene locus.
In the given population, the frequency of the q allele = 0.2.
Then, according to Hardy-Weinberg genetic equilibrium, the frequency of the p allele = 1 - 0.2 = 0.8.
∴ The frequency of heterozygotes, 2pq = 2×0.8×0.2 = 0.32.
Therefore, the frequency of the heterozygotes in the given population is 2pq which is O.32.
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The maximum plasma concentration of a substance that can be carried in the blood without eventually appearing in the urine is called the
Answer: renal threshold
Explanation:
The maximum plasma concentration of a substance that can be carried in the blood without eventually appearing in the urine is called the renal threshold.
The renal threshold refers to the maximum concentration of a substance in the blood plasma that can be filtered by the kidneys without being reabsorbed and eventually appearing in the urine. It is a critical concept in renal physiology and is specific to each substance.
When the plasma concentration of a substance exceeds its renal threshold, it surpasses the kidney's capacity to reabsorb it, resulting in the substance being excreted in the urine. Below the renal threshold, the substance is effectively reabsorbed by the renal tubules and remains in the blood.
The renal threshold varies depending on the substance and can be influenced by factors such as renal function, hormonal regulation, and overall health. Monitoring the renal threshold of certain substances can be clinically relevant in assessing kidney function and diagnosing certain conditions, such as renal tubular disorders or diabetes.
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Nonspecific chemical defenses of the human host include all of the following EXCEPT ______. multiple choice 1 antibodies lysozyme lactic acid hydrochloric acid
Nonspecific chemical defenses whose main function is to prevent the entry of pathogens include all except antibodies.
What are antibodies?It is a protein that reacts against an antigen in an animal-like organism, that is, they adhere to a specific antigen.
Specific antibodies can neutralize toxins, viruses or enzymes as part of the immune response.
Therefore, we can conclude that nonspecific chemical defenses whose main function is to prevent the entry of pathogens include all except antibodies.
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the combination of two forces exerted in opposite direction is what
A. sum of the two forces
b. difference between the two forces
c. product of the two forces
d. ratio of the two forces
Answer:
difference between the two forces option B is the correct answer of the statement
PLEASE HELP 20 POINTS DUE
Answer:
bacteria
Explanation:
The world resources simulation center is intended to address both current and future resource problems. please select the best answer from the choices provided t f
The world resources simulation center being intended to address both current and future resource problems is True.
What is World resources simulation center?This is referred to as a visualization facility where you can see the trends, issues and how their the relate with one another.
The consequences of such relationships is also seen which is why it helps to address both current and future resource problems.
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Answer:
True!
Explanation:
Got a 100%!
How is the dormant form of rickettsia rickettsii activated?.
Answer:
The bacteria are activated through exposure to acids in the gut of the Dermacentor tick. The bacteria are activated after the tick feeds on a host for several hours. The bacteria are activated when the tick reaches its adult stage.
Explanation:
25. A nerve fiber that conducts impulses toward muscles and glands is called a __________ fiber. A nerve that conducts impulses toward the brain and spinal cord is called a __________ fiber.
Answer:
A nerve fiber that conducts impulses toward muscles and glands is called a _____motor_____ fiber. A nerve that conducts impulses toward the brain and spinal cord is called a ______afferent____ fiber.
A nerve fiber that conducts impulses toward muscles and glands is called a motor neuron fiber. A nerve that conducts impulses toward the brain and spinal cord is called a sensory nerve fiber. Both are important for the proper functioning of the body.
What are sensory and motor nerve fibers?The sensory nerve fibers send the stimulus in the form of an impulse from the sensory organs to the spinal cord, where the sensory organs can be skin, eyes, etc. An example is when a person sees a dog coming towards them, and the sensory nerve fiber that is associated with the eye sends the signal from the eye to the spinal cord. The spinal cord takes proper action by sending the motor nerve fibers to the effector organ, which is the leg muscle. In this case, the individual will run.
Hence, A nerve fiber that conducts impulses toward muscles and glands is called a motor neuron fiber. A nerve that conducts impulses toward the brain and spinal cord is called a sensory nerve fiber.
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.In a population of a reptile species bred in captivity, a gene that controls a particular observable trait has only two alleles. The p allele expresses complete dominance over the q allele. If q is artificially selected against through selective breeding, which of the following best represents how the frequencies of p and q would change over time?
Answer:
d
Explanation:
In what form does oxygen travel in the blood? What form
of carbon dioxide?
Answer:
Oxygen is carried both physically dissolved in the blood and chemically combined to hemoglobin. Carbon dioxide is carried physically dissolved in the blood, chemically combined to blood proteins as carbamino compounds, and as bicarbonate.
Explanation: hope this helped :)
What is the name of the structure indicated by the question mark on this transverse cut of the developing embryo
The name of the structure indicated by the question mark on this transverse cut of the developing embryo is the neural tube. This is further explained below.
What is a neural tube?Generally, The neural tube is simply defined as the facilitator of the central nervous system
In conclusion, the neural tube is the brain and the spin.
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What is this suffering ? ( Think back to the gospels ( see Luke 22:47-23:49))
Answer:
While he was still speaking a crowd came up, and the man who was called Judas, one of the Twelve, was leading them. He approached Jesus to kiss him, 48 but Jesus asked him, “Judas, are you betraying the Son of Man with a kiss?”
49 When Jesus’ followers saw what was going to happen, they said, “Lord, should we strike with our swords?”(B) 50 And one of them struck the servant of the high priest, cutting off his right ear.
51 But Jesus answered, “No more of this!” And he touched the man’s ear and healed him.
52 Then Jesus said to the chief priests, the officers of the temple guard,(C) and the elders, who had come for him, “Am I leading a rebellion, that you have come with swords and clubs? 53 Every day I was with you in the temple courts,(D) and you did not lay a hand on me. But this is your hour(E)—when darkness reigns.”(F)
The principle hormones produced by the thyroid gland are:.
The principle hormones produced by the thyroid gland are:. T3 (tri-iodothyronine) and T4 (thyroxine).
What is thyroid gland?Thyroid gland is two globular structure present in the neck. This gland produce growth hormone. It is an endocrine gland.
The thyroid hormone helps in regulating the use of energy by the body. These hormones help in growth and development of the body.
Thus, the hormones are T3 (tri-iodothyronine) and T4 (thyroxine).
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Can you identify the structures of the human digestive system?.
Answer:
The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver. Here's how these organs work together in your digestive system.
explain the theory of evolution by natural selection
Answer:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Explanation:
Why is water wet?
And what happens after we die?
Prime here ready to answer your question <3
Answer:
Water is wet because its viscosity is low
second We dont know what happens when we die
Explanation:
Yw, have a great day
-prime
Water is wet because its viscosity is low.
What is viscosity?Viscosity is a metric for a fluid's flow resistance. It speaks of the internal friction of a fluid in motion.
A fluid with high viscosity resists motion due of high internal friction caused by its molecular structure. Low viscosity fluids flow freely because their molecular structure causes little to no friction when they are in motion.
The thickness of a fluid is another name for viscosity. You can picture honey and low-viscosity water (high viscosity). However, when considering fluids with varying densities, this concept can be unclear. The interaction of the various molecules in a fluid results in viscosity at the molecular level.
Therefore, Water is wet because its viscosity is low.
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When is ozone considered a pollutant? a. in the stratosphere b. in the mesosphere c. in the troposphere d. in the thermosphere please select the best answer from the choices provided a b c d
Answer:
in the troposphere
Answer:
c. in the troposphere
Explanation:
correct ed2022
The components of an environment that support its organisms are called its ____________ , and include light, water, food, mates, and ____________ .
Why tomatoes are red in colour??
Answer:
The color of a tomato begins to change as it ripens, from green to yellow, and ultimately to red. This is due to the breakdown of chlorophyll, which results in the formation of lycopene, a red carotenoid (a pigment group). When the tomato is fully ripe, the carotenoid becomes the predominate color, which is red.
Which of the following is most likely to cause antibiotic-resistant infections on a farm?
Not using antibiotics.
Under-using antibiotics.
Changing antibiotic brands.
Overusing antibiotics.
Answer:
D: Overuse of antibiotics
Explanation:
Bacteria reproduce and evolve quickly, if you use too much antibiotics, a few of that bacteria would be resistant to it, and reproduce quickly, whilst the non-resistant bacteria would be killed off.
Of the four classes of tissues______tissues are the most abundant, widely distributed and histologically variable of the primary tissues.
Epithelial tissues are the most abundant, widely distributed, and histologically variable of the primary tissues.
What is epithelial tissue?The epithelium is a type of tissue that is present in the covering on all internal and external surfaces of your body and also present in glands.
So we can conclude that epithelial tissues are the most abundant, widely distributed variable of the primary tissues.
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