Bottom dwelling fish, sponges, and corals share common ecological interactions and relationships in marine ecosystems. Sponges provide shelter and nutrients to various species, including fish, while corals have symbiotic associations with algae called zooxanthellae. Bottom dwelling fish, like parrotfish, contribute to reef ecosystems through their feeding behavior, which aids in sediment production and nutrient cycling.
What is formed by the mixing of salty sea water and fresh river water
Meiosis creates genetic ______ in cells. (2 points) variety consistency similarities replicas
Faking your experimental results is called _____.
Answer:
scientific misconduct
Explanation:
The term “misconduct in research” applies to any action involving improper treatment of the subjects involved in research, or purposeful manipulation of experimental scientific results in a way that does not reflect the truth. Although relatively easy to conceptualize, it is often difficult to identify - especially in scientific publications.
There are numerous types of misconduct in research reporting. Among the most serious are falsification (alteration / misrepresentation) or the fabrication of data and images, as they distort the truth and lead to false assumptions, confusing clinicians and / or researchers.
Scientists can explore whether two different animal species have evolved from a common ancestor, using evidence
Explanation:
These are the answer choices they didn't put:
analysis of strands of DNA
studies of embryos during development
comparison of bones and muscles
comparison of experiences from each organism
Scientists can explore whether two different animal species have evolved from a common ancestor by looking for evidence of shared traits or features.
These shared traits, called homologies, can include anatomical features such as bones or body structures, as well as genetic or developmental similarities. For example, the wings of a bat and the arms of a human both share the same bone structure, indicating that they evolved from a common ancestor with that same bone structure.
Additionally, genetic studies can reveal similarities in DNA sequences or gene expression patterns between different species, further supporting the idea of a shared evolutionary history. By examining these and other types of evidence, scientists can reconstruct the evolutionary relationships between different species and gain a better understanding of how life on Earth has changed over time.
Learn more about homologies, here:
https://brainly.com/question/29936055
#SPJ2
A person can see clearly up close, but cannot focus on objects beyond 82.0 cm . she opts for contact lenses to correct her vision. part a part complete is she nearsighted or farsighted? is she nearsighted or farsighted? she is nearsighted. she is farsighted.
Paraquat is a general herbicide that kills most types of plants. in a population of ferns, it was found that 40% of the gametophytes showed resistance to paraquat (resistance is caused by a recessive allele). what is the expected frequency of resistant sporophytes in this population?\
Final answer:
Using the Hardy-Weinberg principle, the expected frequency of resistant sporophytes due to a recessive allele in a population of ferns, where 40% of the gametophytes show resistance to paraquat, is 16%.
Explanation:
If 40% of the gametophytes are resistant to paraquat and the resistance is due to a recessive allele, we can infer that these gametophytes are homozygous recessive for the trait (rr). Using the Hardy-Weinberg principle, we can calculate the frequency of the recessive allele 'r' in the population.
Let 'p' be the frequency of the dominant allele 'R' and 'q' be the frequency of the recessive allele 'r'. Since the gametophytes are haploid, the frequency of resistant gametophytes (rr) is equivalent to the frequency of the recessive allele 'q', so q = 0.40. After finding 'q', we can use p + q = 1 to find 'p'.
To find the expected frequency of resistant sporophytes, which are diploid, we need to calculate the proportion of rr individuals in the population. This is given by q² (the square of the recessive allele frequency).
Therefore, the expected frequency of resistant sporophytes in the population would be q² = 0.40² = 0.16, or 16%.
Which event describes how water cycles through living things? A. Waves crash down on a beach. B. Runoff eventually spills into the ocean. C. Humans sweat in a tropical heat. D. Rocks break off the side of a cliff.
it is C. Humans sweat in a tropical heat
Answer:
the answer is c
Explanation:
BECAUSE I SAID SO
Jon has been experiencing increased thirst, increased hunger, and an increase in the frequency of urination. Jon's doctor suspects uncontrolled diabetes and orders a urinalysis. From the symptoms and test order, what condition does Jon's doctor want to confirm?
Answer: C. polyuria
Explanation:
17. Biologists have hypothesized that echinoderms are closely related to chordates because both groups are deuterostomes.
Answer:
True
Explanation:
15- happens daily
16- courtship
Unit seven: lab questions the jungle search for viruses <- your first lab link 1. where did aids/hiv originate? how did it move to humans? 2. why is it important for human health to study viruses at the "viral chatter" stage? 3. how might people come into contact with viruses that could jump to humans? 4. why have risky behaviors for zoonotic diseases continued even though we know that some of these diseases can infect humans? 5. why is the global tracking of zoonotic diseases important? genetically engineering the avian flu <- your second lab link 1. why is avian flu a concern? 2. how does the virus get into a cell? what happens once the virus gets in? 3. what would make it possible for the avian flu to be transferred from human to human? 4. why are scientists looking at the 1918 flu?
HIV attacks human's immune
system just like SIV (the Simian Immunodeficiency Virus)
attacks chimpanzee's immune systems. Scientists found similarities in these virus and they believe that HIV had origin in chimpanzees and then crossed to humans that were hunting them.
2)why is it important for humans to study the "viral chatter" stage?
The viral chatter stage it's when the virus is moving from animals to humans it's very important for humans to study this stage because it could lead to earlier diagnoses before it reaches the human stage.
3. contact with viruses that could jump to humans:What are the "pieces of bread" on either side of the "sandwich generation?"?
The drug dideoxycytidine (used to treat certain viral infections) is a nucleotide made with 2',3'-dideoxyribose. this sugar lacks –oh groups at both the 2'and 3' positions. explain why this drug stops the growth of a dna chain when added to dna.
Dideoxycytidine, a type of dideoxynucleotide, disrupts the process of DNA synthesis because it lacks the crucial 3' hydroxyl group needed to form phosphodiester bonds, which connect the nucleotides in a DNA chain. Once it is incorporated into the DNA chain, no further nucleotides can be added, thereby terminating the growth of the DNA chain.
Explanation:The drug dideoxycytidine is a type of dideoxynucleotide (ddNTP), which is similar in structure to a deoxynucleotide (dNTP), but is missing the 3′ hydroxyl group (indicated by the shaded box). This lack of a 3' hydroxyl group means that when a dideoxynucleotide is incorporated into a DNA strand, DNA synthesis stops. Deoxynucleotides, which are the regular building blocks of DNA, have a hydroxyl group (-OH) at the 3′ position of their sugar component (deoxyribose). This hydroxyl group is crucial for the formation of the phosphodiester bonds that link nucleotides together to form the DNA chain.
However, the dideoxycytidine molecule has neither a 2' nor 3' hydroxyl group, which means that once it gets added to the growing DNA chain, no additional nucleotides can be added because the necessary 3′ -OH group required for forming the next phosphodiester bond is not available. In this way, dideoxycytidine stops the growth of the DNA chain when added to DNA. This is known as the dideoxy chain termination method.
Learn more about dideoxy chain termination method here:https://brainly.com/question/15199202
#SPJ3
Of the components that make up one's total energy expenditure, which is controlled by the person?
Total daily energy expenditure (TDEE) represents calories burned vs calories consumed or the total number of calories you burn for energy each day. It consists of three main components:
1. Resting metabolic rate (RMR) or Basal metabolic rate (BMR)- It is the energy which is associated with the maintenance of major body functions.
2. The thermic effect of activity (TEA) or Activity thermogenesis- It is the energy expenditure due to physical work, muscular activity or physical exercise and it is controlled by a person.Scientists discovered fossil evidence of mesohippus, an ancestor of the modern horse. Mesohippus lived in North America about 40 million years ago. Mesohippus was about two feet tall, ran on hooves with three toes, and had large, grinding teeth. It is believed that these early horses lived in the thick forests. What may have helped horses change over the last 40 million years?
Answer:
Option C
Explanation:
Please see thee attachment
When an animal loses a lot of blood, what do baroreceptors tend to signal to the animal?
Bruce is experiencing sudden, rhythmic waves of pain in his groin area. he has noticed that, although he is consuming fluids, his urine output has decreased. from what condition is bruce suffering? how is it treated? how can he prevent future episodes?
Final answer:
Bruce's symptoms suggest he is suffering from renal colic due to kidney stones, and he may need medication, increased fluid intake, and possibly medical interventions. Preventative measures for kidney stones include staying hydrated and dietary adjustments. It is crucial for him to seek medical attention for a proper diagnosis and to determine if related conditions like BPH or a UTI may be present.
Explanation:
Bruce is likely suffering from renal colic, which is a condition typically associated with kidney stones. Kidney stones can cause sudden, rhythmic waves of pain in the groin area and can lead to a decrease in urine output, perhaps due to obstruction. Treatment for kidney stones often includes pain relief medication, hydration, and possibly medical procedures if the stones are too large to pass naturally. To prevent future episodes, Bruce can stay hydrated, reduce salt intake, and maintain a diet low in oxalate-rich foods.
Additionally, given Bruce's symptoms and past health history, the possibility of a urinary tract infection or prostate issues, such as benign prostatic hyperplasia (BPH), should not be ruled out. BPH treatment varies from medication to potentially surgery for severe cases. It is vital for Bruce to see a healthcare professional for an accurate diagnosis and appropriate treatment.
The centrosome and centrioles are crucial for the process of cell division in animal cells. During cell division, two centrioles come together with some other special proteins and form the centrosome. As mitosis progresses and chromosomes line up at the equator of the cell, the centrosomes are responsible for what occurrence in the dividing cell? A) They help the cell's nucleus replicate DNA. B) They are responsible for pinching the single nucleus into two at the end of mitosis. C) They are responsible for the production of the proteins that reform the nuclear membrane. Eliminate D) They produce microtubules that attach themselves to the chromosomes and aid in separating them.
Answer:The answer is D) They produce microtubules that attach themselves to the chromosomes and aid in separating them.
Explanation:
All plants produce _______ by mitosis and _______ by meiosis. select one:
a. spores; gametes
b. gametes; gametes
c. gametes; spores
d. spores; spores
e. spores; gametes and spores
Answer:
gametes;spores
What is lanugo? very fine, soft hair on the face and arms of people with anorexia nervosa a sudden drop in blood pressure from excessive dieting a side effect of liposuction surgery a supplement claimed to increase metabolism 1 points?
What property of light allows a mirror to show your image?
Light reflection is the property that enables a mirror to show your image.
Light exhibits the property of reflection that allows a mirror to show your image. When light hits a mirror, it follows the law of reflection, where the angle of incidence equals the angle of reflection, creating a virtual image behind the mirror.
A flood kills most of the population of ants that live near a river. after the flood, the ant population increases, but its allele frequency is different. what type of situation is this?
Answer:
C) bottleneck
The complete question is:
A flood kills most of the ants that live near a river. After the flood, the ant population increases, but its allele frequency is different. What type of situation is this?
a. genetic drift
b. mass extinction
c. bottleneck
d. founder
Explanation:
There are two most common forms of DNA drift:
Genetic drift is a naturally occurring shift in the frequency of an allele. In contrast, a bottleneck effect occurs when the population decreases rapidly. A flood reduced the ant population in this region, demonstrating a bottleneck effect that results in genetic drift.
Over time, this might alter a population's genetic makeup, making them more vulnerable to environmental hazards or illnesses. The flood significantly impacted the ant population. The abrupt decline in population due to the bottleneck effect may have genetic repercussions.
The situation described in the question, where a flood kills most of the ant population near a river, and the allele frequency in the population changes afterward, is an example of the bottleneck effect.
Event Occurs: A flood, which is a natural disaster, randomly reduces the ant population near the river. This sudden decrease in population size is what initiates the bottleneck effect.
Random Sampling: The surviving ants are a random sampling of the original population. This means that the survival of these ants is not necessarily related to their genetic traits but more related to chance.
Change in Gene Pool: The alleles (different versions of a gene) carried by the surviving ants become the entire genetic pool for the post-flood population. Since these surviving ants may not be genetically representative of the original population, the allele frequencies can change significantly.
New Allele Frequency: The new population will have different allele frequencies compared to the original population. Some alleles might be lost completely, while others may become more common.
Genetic Drift: The small population of surviving ants is then subject to genetic drift, which can further alter allele frequencies randomly over time, potentially reducing genetic diversity even more.
true or false: the only predictable thing about a drug is that it will make you sick.
Question 47 Unsaved
The area of land on which all runoff, sediment, and water-soluble substances flow to a single surface water outlet (like a river or stream) is called
1)
recharge zone
2)
aquifer
3)
buffer strip
4)
watershed
The correct answer is option 4, that is, watershed.
Watershed refers to the area of land, which channels snowmelt and rainfall to the streams, creeks, and rivers, and finally to the points of outflow, like the bays, reservoirs, and the ocean.
The size of a watershed, also known as a catchment or a drainage basin is illustrated on many scales, considered to as its hydrological unit codes, on the basis of its geography, which is most relevant to its particular region. A watershed can be small, like as a single county or modest as an inland lake.
Cellular respiration in animals is necessary to transfer the chemical energy from sugar obtained from their food into ATP for use throughout the body. Which two systems work together to transport the sugar from food to the cells in the organism’s brain?
Final answer:
The digestive system and the cardiovascular system work together to transport sugar from food to the cells in the organism's brain.
Explanation:
The two systems that work together to transport sugar from food to the cells in the organism's brain are the digestive system and the cardiovascular system.
In the digestive system, food is broken down into glucose, a simple sugar that is then absorbed into the bloodstream.
The cardiovascular system, consisting of the heart and blood vessels, transports the glucose-rich blood to the brain and other cells in the body where it can be used for cellular respiration.
Field research does not take place at _____. a toxic waste dump the ocean floor a laboratory the rain forest
A laboratory is the answer.
____ is a group of cells that work together to perform a specific function? Need answer asap
Explain the characteristics of Archaebacteria?
Which of these is a disadvantage of using renewable resources, such as wind energy and sunlight, instead of using renewable resources?
A) Renewable resources are widely available.
B) Renewable resources can be impacted by weather.
C) Renewable resources produce less waste materials.
D) Renewable resources must be imported from other countries.
Answer:
The Correct Answer is B.
Explanation:
Renewable energy also depends on weather for its sources of power.Hydro generators required rain to fill dams to supply flowing water.It is difficult to produce that much electricity as we can produce by the traditional methods by using fossil fuels.Wind turbines need wind and solar energy need a clear sky and sunny day to collect heat and produce electricity.
Renewable resources can be impacted by weather because it is present in open environment.
Factors affecting renewable energyRenewable energy technologies are highly dependent on climatic factors such as sunlight, wind speed and water availability. Due to direct interaction with environment, the renewable resources can be affected by weather conditions so we can conclude that renewable resources can be impacted by weather because it is present in open environment.
Learn more about renewable resources here: https://brainly.com/question/79953
A body of water, located near Fresh Kills, is highly polluted because rain washes toxic materials from Fresh Kills into the water. This process is known as _____.
Index fossils allow geologists to _____.
Index fossils enable geologists to determine the geological ages of fossils and calculate the rate of speciation of early organisms, which provides an insight into the history of evolution on Earth.
Explanation:Index fossils play a crucial role in geology by allowing researchers to determine the geological ages of the fossils. This information is used to calculate the rate of speciation of early organisms. Index fossils are typically sought in horizontal rock layers, across a variety of rock types, and they are particularly valuable when they are abundant within these layers.
The investigation and categorization of these fossils aid in creating a layout of the biological history on Earth, displaying the timeline and progression of evolution. For instance, the similarities in morphology between the appendages of whales, birds, and mammals is suggestive of these species sharing a common ancestor.
Thus, the process of studying index fossils is intricate, demanding careful excavation techniques, and detailed documentation in order to provide the most accurate picture of our planet's geological and biological past.
Learn more about Index Fossils here:https://brainly.com/question/14988327
#SPJ12