The answer is;
The numbers of mussels would reduce
Planktons population would increase.
This is a phenomenon common in food chains where a reduction in predator population increases the prey population and vice versa. This is because the species population in a food chain/food web are interlinked and source energy from one another directly or indirectly.
Answer: B)
Explanation:ANSWERED ON USATEST PREP
The genetic code is based upon the reading of how many bases at a time?
Three codons code for an amino acid . genetic code is set of relationships between codons and amino acid that code protein. It is three bases at a time read in the genetic code.
While genes have potential to modify behavior, behavior can also modify genes. How do genes impact this process?A.Genes impact neuron functioning directly.B.Changes made to proteins lead to changes in behavior.C.Neurons are able to impact protein synthesis.D.Genes impact the DNA of a cell, leading to changes in behavior
The correct answer is: B. Changes made to proteins lead to changes in behavior.
Genes do not impact neuron functioning directly, but rather encode proteins that build and control the functioning of the brain through which behavior is expressed. Behavior is influenced by both, inheritance and environment. So, for example, social information (environmental influence) can impact brain gene expression via epigenetic modifications.
In what way are the humerus and the femur similar? An x-ray of the human body showing the humerus and femur bones A. They both attach their respective limbs to the axial skeleton. B. They both have similar joints at each end. C. They both are extremely strong and made only of compact bone. D. They both have hollow spaces filled with bone-generating cells. E. They both protect vital organs.
Answer:
The most appropriate answer would be option A.
The humerus and femur are the bones of the appendicular skeletal system.
They both attach their respective limbs to the axial skeletal.
The humerus is a long bone of the arms which connects it to the skeletal through scapula.
Similarly, the femur is a long bone of the thigh which connects the lower limb with axial skeletal through the pelvic joint.
The humerus and femur are similar in that B) they both have similar joints at each end, making them long bones that function as levers in their respective limbs.
Explanation:In what way are the humerus and the femur similar? The correct answer is B. They both have similar joints at each end. Both the humerus and femur are classified as long bones, which means they are cylindrical in shape, being longer than they are wide.
These bones function as levers and move when muscles contract. The humerus is the only bone in the upper arm, and it forms part of the shoulder joint at its proximal end where it connects to the scapula, and the elbow joint at its distal end.
The femur is the single bone of the thigh, forming the hip joint at its proximal end with the pelvis, and the knee joint at its distal end with the tibia. Both have epiphyses covered with articular cartilage and diaphyses with a marrow cavity.
Despite being different in terms of location and the specific movements they facilitate, the structural similarity as long bones with joints at each end is notable.
What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?
A.
deletion
B.
duplication
C.
insertion
D.
inversion
Answer:
C.
insertion
Explanation:
In general, due to the laws of physics, as magnification increases in a microscope, the field of view A) blurs. B) decreases. C) doubles. D) increases.
The answer is Decreases
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Which of the following statements are correct about the carbon cycle?
a)Matter and energy are recycled within the carbon cycle.
b)Matter is recycled within the carbon cycle, whereas energy flows through.
c)The carbon cycle includes the processes of mitosis and meiosis.
d)Matter and energy flow through the carbon cycle. Both will eventually be used up.
Drag each label to the correct location on the chart.
Describe the two fields of study.
compares the genomes
of different organisms
compares the limbs
of different organisms
compares fossilized
structures to living
organisms
compares cells of
organisms
Reset Next
The anatomy (Comparative Anatomy) chart contains the ones that say " compares the limbs of different organisms" and "compares fossilized structures to living organisms".
The cells (Molecular Biology) chart contains the ones that say "compares the genomes of different organisms" and "compares cells of organisms".
If this is for Plato there should be a chart that has one column for anatomy(Comparative Anatomy) and one for cells(Molecular Biology). Hope this helps.
The question involves two fields in biology: genomics, which compares the genomes of different organisms, and comparative anatomy, which compares physical structures in different organisms, including limbs and fossils.
The question pertains to two specific fields within biology: genomics and comparative anatomy.
Genomics is a field that focuses on the study and comparison of genomes or DNA sequences within and between species.
In this area, scientists compare the genomes of different organisms to identify key similarities and differences, which can provide insights into evolution, disease susceptibility, and other biological phenomena.
On the other hand, Comparative Anatomy is field concerned with the study of comparing structural differences and similarities in different species.
This may involve comparing the limbs of different organisms or contrasting fossilized structures to living organisms to gain insights into evolutionary processes and shared ancestry.
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Exposure to asbestos combined with ______ will increase the chance of developing lung cancer.
Exposure of asbestos combined with smoking could dramatically increase the chance of developing lung cancer.
A cross-country skier who prefers high elevation but flat terrain is looking for a ski vacation destination.
Which location would be the best destination for the skier?
the Black Hills
the Great Plains
the Bridger Mountains
the Yellowstone Plateau
✿ The Cross-Country Skier prefers High Elevation but Flat Terrain
✿ It means he is looking for Plateau
✿ The Best Destination for the Skier would be : Yellowstone Plateau
A cross-country skier who prefers high elevation but flat terrain is looking for a ski vacation destination,the best destination for the skier, the Yellowstone Plateau.
How do erosion form sand dunes unit test?Waves cause erosion with coastlines and deposit sand take far from the shore. Erosion cause as surface water carrying sediment and the sediment is deposited pass oceans and lakes.
Thus, the Yellowstone Plateau is correct.
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True or false? A mating between a tetraploid individual and a diploid individual produces biologically fit offspring.
A cross between a diploid individual and a tetraploid individual produces triploid offspring. There are many species of plants that are triploid, but those come from crosses between two triploid individuals. In those cases, the chromosomes from one parent match up with the chromosomes from the other parent just fine. The same is not true with a cross of a tetraploid and a diploid. In that case, one third of the chromosomes are unmatch, causing many offspring to die, to be sterile, or to be generally unfit. Long story short, the answer you seek is False.
A cross between two plants that have pink flowers produced plants that have red , pink, or white flowers. What is the most likely explanation for these results
That species has genes that yield red, pink or white flowers. The pink gene is dominant. All hybrids contain red/white genes, but they are recessive. Thus, the cross can unite red/white genes in hybrids with no pink, yielding red/white flowers.
The genes of that species can produce flowers that are red, pink, or white. There is a dominant pink gene.
What is the importance of incomplete dominance?It explains how phenotypes from two different alleles can coexist, imperfect dominance has genetic significance.
Mendel also discusses the Law of Dominance, which states that only one allele can be dominant over the other and that it can come from either parent.
Red/white genes are present in all hybrids, although they are recessive. In hybrids without pink, the cross can therefore combine red/white genes to produce red/white flowers.
Both alleles will express equally in the heterozygote because neither is dominant over the other in codominance.
Therefore, incomplete dominance is most likely explanation for these results.
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Answer:
Commensalism
Explanation:
Commensalism is when one organism benefits and the other doesn't benefit and is also not harmed. The tree is helping the orchid and the orchid isn't benefiting or harming the tree.
Ocean waves contain nerdy that is transferred to them by moving across the surface
Ocean waves are generated by wind energy transferring to the water surface, creating waves that travel through the water as oscillating particles.
Surface Waves, sometimes called gravity waves, are waves that eventually break on the beach. These waves are generated by wind blowing across the ocean surface, transferring energy to the water. The energy transfer from the wind to water causes waves to form and move as oscillating particles of water.Correct Question Ocean waves contain energy that is transferred to them by moving across the surface.please.....please....please...pleaseeeeee help me !!!!!!!! :(
generally the last organism to return to a habitat through succession
a.......die
b.......are tall, strong tress
c.......shrubs
Merry Christmas!
Answer:
C. shrubs
Explanation:
The reason I say this is because the other options don't make sense because are tall strong tress's is a lock of women's a hair and die is not part of succession. Option b is part 2 of the secession stage.
Can someone help me answer these? Thanks!
1- Answer : B (AUG AAA CGU CCU)
2- Answer : B (TAC AAA AGA GGG)
3- Answer : C (GGCGATACG)
Labrador retrievers are black, brown, or yellow. In a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies.
These results indicate which of the following?
A) Brown is dominant to black.
B) Black is dominant to brown and to yellow.
C) Yellow is dominant to black.
D) There is incomplete dominance.
E) Epistasis is involved.
Final answer:
In Labrador retriever fur color genetics, black is dominant to brown, and yellow is a result of epistasis where the ee genotype masks the expression of the B allele.
Explanation:
In the cross of a black female Labrador retriever with a brown male Labrador, the possible results of all black puppies, half black half brown puppies, or three-quarters black to one-quarter yellow puppies indicate that epistasis is involved (E). This is because Labrador retriever's fur color is controlled by two alleles, E and B. Dogs with the ee genotype will be yellow regardless of the B allele, while B_E_ genotype will lead to black labs, and bbE_ genotype will lead to chocolate labs. This represents a case where one gene (E, stands for extension) masks the expression of another gene (B, for black). Therefore, black fur color is dominant to brown, and yellow fur color is the result of epistasis, where the E allele's expression is hidden by the ee genotype.
A dog with the ee genotype develops into a yellow lab, while B_E dogs become black labs and bbE_ dogs become chocolate labs. Therefore, the results of the cross can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies.
During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. Most of the trees on the island are now short trees and produce seeds that grow into short trees. What concept is shown in this example?
Question 5 options:
Natural Selection
Artificial Selection
Genetic Engineering
Gene Splicing
The correct answer is option A, Natural Selection
In all the three options namely Artificial Selection , Genetic Engineering and Gene Splicing there is involvement of human beings in gene modification. While in the case of natural selection genetic modification occurs through the evolutionary process through several hierarchical orders.
In which sealed container with the organisms be able to continuously cycle o2 and co2 gases
A. A terrarium with a frog and pool of water
B. An aquarium with fish and plastic pants
C. An aquarium with water plants and a snail
D. A terrarium with mice and wood shaving
the answer is C. hope this helps
An aquarium with water plants and a snail will enable a continuous cycle of O2 and CO2 due to the natural gas exchange between the aquatic plants during photosynthesis and the respiration of both plants and snail.
In which sealed container would organisms be able to continuously cycle oxygen (O2) and carbon dioxide (CO2) gases? The answer is C. An aquarium with water plants and a snail. This setup allows for a natural exchange of gases between the organisms involved. During the day, water plants absorb CO2 and release O2 through the process of photosynthesis, providing oxygen for the snail. At night, plants consume O2 and release CO2 through respiration, while the snail also respires, consuming O2 and releasing CO2. This creates a balance and allows for a sustainable exchange of gases within the container. Unlike an aquarium with plastic plants where there's no photosynthesis, or terrariums with animals that do not have a complete set of producers and consumers for the gas exchange, this aquarium supports a simple but effective ecosystem.
Which scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?
a.
Martha Chase
b.
Oswald Avery
c.
Frederick Griffith
d.
Alfred Hershey
The answer for this question is b Oswald Avery
Final answer:
Oswald Avery conducted initial tests on bacterial extracts, but the definitive proof that DNA is the genetic material in bacteria came from the experiments conducted by Alfred Hershey and Martha Chase in 1952, who demonstrated this using the T2 bacteriophage and E. coli.
Explanation:
The scientist who conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA is Oswald Avery. However, it was the work of Alfred Hershey and Martha Chase in 1952 that provided confirmatory evidence solidifying DNA as the genetic material. Their landmark experiments involved the use of a bacteriophage known as T2, which infects Escherichia coli (E. coli) bacteria. By separately labeling the DNA and proteins of the T2 bacteriophage with radioactive isotopes, Hershey and Chase were able to observe that only the DNA entered the bacterial cells during infection, confirming that DNA is the genetic material responsible for producing new phage particles and not the protein.
The first person to isolate the material that came to be known as nucleic acids was Friedrich Miescher, not Frederick Griffith. This set the stage for future research that would eventually lead to the identification of DNA's role in heredity.
please help me on this
Dad: TtBb
Mom: ttbb
You have to use distribution for dihybrid crosses. Meaning, the first allele of each trait has a equal chance of being paired with the other allele of the other trait. So for example with Dad, I will number the traits:
T(1)t(2)B(3)b(4)
To set up the possibilities from Dad, it would be 13, 14, 23, 24: TB, Tb, tB, tb. Same idea goes for Mom, except since all alleles are the same, you only need to make one column for Mom, since if you did all 4, the other 3 would just be repeats of the 1.
Cross:
tb
TB TtBb
Tb Ttbb
tB ttBb
tb ttbb
The phenotypic ratio is 1 Tall Brown: 1 Tall Blue: 1 Short Brown: 1 Short Blue
After glycolysis occuers,the products may enter the krebs cycle.Which major products result from these reactions?
The major products that result from the Krebs cycle are NADH, FADH and ATP in that order.
An 11-year-old male is newly diagnosed with type 1 dm. which classic symptoms should the nurse assess the patient for? recurrent infections, visual changes, fatigue, and paresthesias vomiting; abdominal pain; sweet, fruity breath; dehydration; and kussmaul breathing weakness, vomiting, hypotension, and mental confusion polydipsia, polyuria, polyphagia, and weight loss
The correct answer is polydipsia, polyuria, weight loss, and polyphagia.
The classic signs of type I diabetes mellitus comprise polyuria, polydipsia, weight loss, and polyphagia. The recurrent infections and visual changes are the signs of diabetes. Weakness, hypotension, and mental confusion are the signs of hypoglycemia. Abdominal pain, vomiting, and sweet breath are the sign of diabetic ketoacidosis.
What do you do if you're stuck in a rip current?
Float or tread water until you can swim out of the current. Your instincts may be to fight the current and swim directly back to shore. However, that’s the most dangerous thing you could do. Instead, focus on keeping your head above water until the current has weakened and you're able to swim through its boundary.
Most rip currents weaken about 50 to 100 yards (46 to 91 m) from shore. Once the current has begun to subside, you’ll have an easier time swimming out of it.
Even the strongest swimmers can’t fight a rip current. Trying to swim against it can lead to exhaustion and drowning.
Remain calm. If you get caught in a rip current, don't panic. You'll have a better shot at getting out of the situation if you stay calm. Keeping your cool can help you conserve energy and think clearly.
Tips for Staying Calm
Try to control your breathing. Keep your head above the water and take slow, deep breaths.
Think positive, calming thoughts. Tell yourself “Don’t panic. You can make it out of this rip current. Don’t fight it, conserve your energy, and look for breaking waves at the edge of the current.”
Remind yourself that a rip current does not drag you underwater. Rip currents only pull you away from the shore. Worrying that the current will pull you underwater could lead to panic.
Call for help if you’re not a strong swimmer. Escape involves floating with the current, then swimming parallel to the shore to cross the current's edge. If you can’t swim, call for help and wave your arms to get the attention of a lifeguard or other people on the beach.
If you know how to swim, you should be able to escape and swim back to shore at an angle away from the current. However, if you have any doubt about your ability to break free of the current, call and wave for help.
If stuck in a rip current, do not swim directly against it. Instead, call for help, swim parallel to the shore to escape the current, then swim back to shore at an angle. If unable to escape, float or tread water until out of the current.
What to Do If You're Stuck in a Rip Current
When caught in a rip current, it's crucial not to panic. Rip currents are powerful, narrow bands of water moving away from the shore. Attempting to swim back to shore directly against a rip current can be extremely exhausting and is not recommended. The following steps should be taken:
Call for help immediately, signaling to lifeguards or bystanders on the shore.
Swim parallel to the beach in order to escape the narrow current.
Once out of the current, swim at an angle away from the current and back toward the shore.
If you're unable to swim out of the rip current, try to float or tread water calmly until you're out of the current, then head back to shore. Awareness and understanding of rip currents are vital for beach safety, and noticing warning signs can prevent such situations.
Two parents have the genotype Gg for a genetic disorder cause by a recessive allele. What is the chance that any of their children will inherit the disorder
Answer: The correct answer is 25%.
As per the question, genetic disorder is caused by recessive allele. This means that that genotype of the person having the recessive disorder is gg.
A dominant allele ( depicted by capital letter like G in this case) always masks the expression of recessive allele.
A recessive disorder will only be caused when the person is homozygous for the recessive allele ( like in this case gg is the genotype that will cause the disease.
In the given question, genotypes of parents is Gg and Gg.
The chances that their children will inherit the disorder is 25%. Refer punnett square.
Therefore, any child of two Gg parents has a 25% chance of inheriting the disorder.
When both parents have the genotype Gg for a genetic disorder caused by a recessive allele, each child has a specific probability of inheriting the disorder. The parents' genotypes can be represented as follows:
- G (dominant, healthy allele)
- g (recessive, disorder-causing allele)
The possible combinations of alleles that a child could inherit from these parents can be determined using a Punnett square:
- GG (inherits a G from each parent)
- Gg (inherits a G from one parent and a g from the other)
- gg (inherits a g from each parent)
The Punnett square shows that each child has:
- A 25% (1 in 4) chance of inheriting GG (healthy, no disorder)
- A 50% (2 in 4) chance of inheriting Gg (carrier, no disorder)
- A 25% (1 in 4) chance of inheriting gg (affected by the disorder)
The cross bridge cycle starts when _________. Select the best answer. View Available Hint(s) Select the best answer. ATP binds to troponin and is hydrolyzed to ADP and Pi Ca2+ from the sarcoplasmic reticulum binds to troponin acetylcholine diffuses away from the synaptic cleft Ca2+ is actively transported into the sarcoplasmic reticulum Ca2+ from the sarcoplasmic reticulum binds to tropomyosin
The cross bridge cycle in a muscle contraction begins when calcium ions (Ca2+) bind to the protein troponin. This triggers the exposure of myosin-binding sites on actin, allowing myosin to bind and create cross-bridges, causing contraction. ATP plays a key role in breaking these cross-bridges and re-cocking myosin heads for the next cycle.
Explanation:The cross bridge cycle in a skeletal muscle contraction starts when Ca2+ (calcium ions) from the sarcoplasmic reticulum binds to troponin. This triggers a conformational change in tropomyosin, exposing the myosin-binding sites on the actin filament. This allows myosin heads to bind to these sites, creating cross-bridges. While bound, the myosin heads perform a power stroke, pulling the actin filament towards the center of the sarcomere. An ATP molecule then binds to the myosin head, leading to the detachment of the cross-bridge, and the breakdown of ATP to ADP and Pi, effectively 'recocking' the myosin head, making it ready for a new cycle once more Ca2+ becomes available, and the myosin-binding sites on actin get exposed again.
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what is the general term for any carbohydrate monomers
The general term for any carbohydrate monomer is a monosaccharide.
Ex: glucose and fructose
Answer:
The correct answer is monosaccharide.
Explanation:
The carbohydrates, which are generally known as polysaccharides are formed of monomers known as monosaccharides. The monosaccharides are the basic sugar as it comprises one sugar unit, which cannot be dissociated further into simpler forms. Monosaccharides are the fundamental unit of carbohydrates. They are sweet in taste and are formed of oxygen, carbon, and hydrogen atoms.
What would the result be when identifying a fish with a single dorsal fin, no fin on its back near the tail, and a tail that is asymmetrical?
The characteristics show that the given fish is a sturgeon.
Sturgeon is a general name for the twenty-seven fish species belonging to the family Acipenseridae. Their origination dates back to the Triassic, that is, about 245 to 208 mya.
The sturgeons are late developing, and long-lived fishes with different features like a heterocercal caudal fin identical to that of sharks, and an elongated spindle-like body, which is scaleless, smooth-skinned, and armored with five lateral rows of bony plates known as scutes.
Answer:
It has a single fin on its back near its tail.
It is covered in spots.
It has a forked tail fin.
Explanation:
edge 2020-2021
Explain why baleen whales are more efficient feeders in the ocean food web.
Answer:
Baleen whales, are largest mammals on earth. These whales use specialized structures which is known as baleen to capture it's prey. A baleen functions as a sieve to filter out prey from water. Numerous baleens are present in the upper jaw of the whale. Baleens are flexible structural appendages made from the protein keratin present in the place of tooth in toothless baleen whales. A baleen whale opens it's mouth to consume water from the ocean. This water contains large amount of prey population. It then partly shuts the mouth and presses the tongue against the upper jaw. The water passes off from the sideways by baleens. The prey is then swallowed by the whale. A baleen whale is able to capture zooplanktons such as krills and copepods and small fishes from the food chain because of these specialized structures.
A baleen whale does not hunt for it's prey as it exhibit specialized structures to capture the prey. Therefore, it is the most efficient feeder in the ocean food web.
Where do clouds form? Check all that apply. at the ground in the upper atmosphere near the Earth’s surface where the air has very low humidity where the atmosphere contains few particles
Clouds form when air reaches the dew point and condenses around particles in the atmosphere; they can form near the Earth's surface or in the upper atmosphere but not in areas with low humidity or few particles.
When the air in the atmosphere reaches the dew point and contains enough particles like dust or smoke to provide condensation nuclei, condensation occurs and clouds are formed. Clouds that form at the ground level are known as fog. It is incorrect that clouds form where the air has very low humidity because clouds require a certain level of humidity to maintain the water droplets or ice crystals that make up the cloud. Furthermore, without particles in the air, there would be nothing for the water vapor to condense around, so clouds typically do not form in areas with very few particles.
Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On what evidence did she base this hypothesis? Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for darker skin in these environments. On what evidence did she base this hypothesis? the melanin in darkly pigmented skin protects circulating folate from being destroyed by UV radiation, and folate is important in human reproduction the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer people of African descent all have the same version of the MC1R gene, indicating that this gene was under selection she discovered that people of African descent have less folate circulating in their blood and that folate is important for human reproduction
Dr. Nina Jablonski's hypothesis on the prevalence of darker skin in high-UV areas is based on the protective role of melanin against UV radiation, the importance of folate for human reproduction, and the observation that people of African descent have the same version of the MC1R gene.
Explanation:Dr. Nina Jablonski based her hypothesis regarding the prevalence of darker skin in high-UV areas on several pieces of compelling evidence. Firstly, she noted that the melanin in darkly pigmented skin acts as a protective layer, shielding DNA from harmful UV radiation, which is known to cause skin cancer. Secondly, she found that melanin also plays a crucial role in preserving folate levels in the body, by preventing this essential nutrient from being destroyed by UV radiation.
The importance of folate for human reproduction is well-documented, and its degradation due to UV radiation could potentially lead to a decrease in reproductive success. Lastly, Dr. Jablonski observed a genetic aspect - all individuals of African descent have an identical version of the MC1R gene, which suggests that this gene was under selection pressure.
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