Fish have a lateral line system which gives them the ability to detect small vibrations or currents.
The body tissue that connects the muscle to the bone is called
Answer:
The answer is: Tendons.
Explanation:
Tendons are fibrous connective tissue that joins muscles to bones. They can also attach muscles to structures such as the eyeball. Tendons serve to move the bone or structure, while the ligaments are the fibrous connective tissue that joins the bones together and generally their function is to join structures and keep them stable.
The answer is: Tendons.
Why does incomplete dominance not support the blending theory of inheritance?
What process powers the movement of tectonic plates?
Which does not affect the quality or pattern of cloth as it is woven on a loom?
speed of weaving
type of thread used
how the loom is threaded
Which one of these are not an example of intracellular communication
1. a muscle cell maintains homeostasis
2. a nerve cell stimulates a muscle cell to contact
3. a muscle sell is coordinated
4. a signal is translated to cause muscle contraction
What property of water results from the high cohesion between water molecules?
Surface tension
Low density as a solid
Low vapor pressure
High heat capacity< not this
Answer: Surface tension
Explanation:
Surface tension is the net downward force acting on the surface of liquids due to the cohesive nature of liquids.
Water molecules are bonded by strong hydrogen bonding between the hydrogen atom and the electronegative oxygen atom. Thus water molecules present on the surface are strongly attracted by the molecules present below the surface and thus act as a stretched membrane.
The surface acquires a minimum surface are and thus acquire a spherical shape.
Heat capacity of water is high due to strong hydrogen bonding between water molecules.
Thus surface tension of water results from the high cohesion between water molecules.
In a food web, arrows poinet in just one direction beacsue the show what?
why do plants need both chloroplasts and mitochondria
Plants need both chloroplasts and mitochondria because chloroplasts are responsible for photosynthesis, while mitochondria are the site of cellular respiration. Chloroplasts convert sunlight into chemical energy, specifically glucose, whereas mitochondria break down glucose to release energy for the plant's activities.
Explanation:Plants need both chloroplasts and mitochondria because they play complementary roles in the plant's energy metabolism. Chloroplasts are responsible for photosynthesis, the process by which plants convert sunlight into energy-rich molecules like glucose. Mitochondria, on the other hand, are the site of cellular respiration, where glucose is broken down to release energy for the plant's activities.
Chloroplasts contain pigments like chlorophyll that capture sunlight and convert it into chemical energy. This energy is used to produce glucose through the process of photosynthesis. The glucose is then stored as starch or used immediately by the plant for growth and other metabolic activities.
However, glucose alone cannot provide all the energy needed by the plant. This is where mitochondria come in. Mitochondria are known as the powerhouse of the cell because they produce more energy in the form of ATP through cellular respiration. They break down glucose and other organic molecules to release energy that is used by the plant to perform various functions like reproduction, growth, and repair.
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Plants need both chloroplasts and mitochondria because they serve different functions in the cell: chloroplasts carry out photosynthesis to produce glucose, while mitochondria carry out cellular respiration to convert glucose into ATP. These two processes work together to provide plants with energy.
Explanation:Plants need both chloroplasts and mitochondria because they serve different functions in the cell. Chloroplasts are responsible for carrying out photosynthesis, a process that converts light energy into chemical energy in the form of glucose. On the other hand, mitochondria are responsible for cellular respiration, a process that converts glucose into ATP, the energy currency of cells. These two organelles work together to provide plants with the energy they need to grow and carry out essential metabolic processes.
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I only have two questions, thank you! One difference between a point mutation and a chromosomal mutation is that ____
A. A point mutation affects the DNA of more genes than a chromosomal mutation
B. A point mutation can involve a insertion or deletion, but cannot result in a frameshift.***
C. A chromosomal mutation can change the number of chromosomes in a cell.
D. A chromosomal mutation is more likely to be passed on to offspring or daughter cells.
A mutation that involves one or a few nucleotides is called ____.
A. A mutagen B. An inversion C. A point mutation*** D. A translocation Thanks so much for your help! Happy Holidays! :)
Answer:
1. The most appropriate answer would be an option C.
A point mutation refers to the mutation or change that occurs at only one or a few nucleotides of the DNA.
Usually, a single nucleotide is substituted with the wrong nucleotide due to which only a single codon is affected.
However, it can cause frame shift mutation if insertion or deletion of nucleotide takes place.
In contrast, in chromosomal mutation long segment of DNA is involved. It may involve one or more genes. It mainly includes insertion, deletion, translocation, and inversion.
In addition, chromosomal mutation can cause change in the number or sets of chromosomes such as poliploidy, aneoploidy et cetera
2. The correct answer would be C. A point mutation
A point mutation refers to the mutation or change that occurs at only one or a few nucleotides of the DNA.
one way organisms interact is through competition what do organisms compete for
Domestic cats can begin reproducing as young as 6 months of age. Each female cat can produce two litters per year, containing multiple cats that can also begin reproducing early. What prediction can you make about an ecosystem in which cat populations are not controlled?
A. A predator for the cats would rapidly appear to match the population growth.
B. Small game would initially suffer but then quickly develop survival skills.
C. Within a few years, the population of cats would increase slowly, level off, and stabilize.
D. Within a few years, there would be many starving cats. ...?
If cat populations in an ecosystem are not controlled, they will likely experience rapid growth leading to overpopulation, resource depletion, and widespread starvation as the environment's carrying capacity is surpassed. Therefore the correct option is A.
Explanation:In an ecosystem where domestic cat populations are not controlled, we can make a solid prediction that, within a few years, there would be many starving cats. Cats reproduce at a high rate with a female cat being able to produce multiple litters each year, starting as young as 6 months of age. In the absence of natural predators or human control measures, cat populations undergo a geometric progression, quickly leading to overpopulation. This rapid increase eventually surpasses the carrying capacity of the environment leading to depleted resources, including food. Starvation and increased competition for resources can lead to high mortality rates, poor health, and a natural decline in population growth.
In natural ecosystems, population size is regulated by food availability, predation, disease, and environmental conditions. Without a corresponding rise in the number of predators or a significant increase in mortality factors, such as diseases or accidents, the unchecked growth of cat populations would likely result in resource exhaustion. Overpopulation issues, including starvation and increased competition, are known to occur in various species when they exceed the environmental carrying capacity.
There is a concept in biology known as the logistic model of population growth, which suggests that after a period of exponential growth, a population will start to level off as it reaches the carrying capacity of its environment. However, before this point is reached, overpopulation can result in negative outcomes such as widespread hunger, which in turn may cause the population to crash.
Final answer:
An uncontrolled domestic cat population within an ecosystem would experience exponential growth, initially impacting prey species before facing resource limitations leading to many starving cats. This aligns with option D, predicting dire consequences due to overpopulation and lack of natural controls.
Explanation:
Regarding the ecosystem impact of uncontrolled cat populations, it is important to consider the reproductive traits of domestic cats and the ecological balance. Domestic cats can begin reproducing at a young age, often around six months, and can produce multiple litters per year, each containing several kittens. When such reproductive rates are combined with the fact that these offspring can themselves reproduce within months, cat populations can grow exceptionally fast, leading to a phenomenon known as a geometric progression.
Without controls such as predation, disease, or limitation of resources, the cat population in an ecosystem could explode exponentially. Initially, this could cause a significant decline in prey species (such as small game) that cats hunt. Over time, the cat population would likely face resource limitations, particularly food scarcity, resulting in many starving cats. This answer aligns with option D: Within a few years, there would be many starving cats due to overpopulation and the associated stress on the ecosystem's resources.
When errors occur in dna what activity do checkpoint controls inhibit
When bacterial cells participate in conjugation, the bridge between the cells through which dna passes is
why is the smooth muscle cell shaped the way it is? ...?
When the cell excretes sodium from within, against the natural tendency of matter, it is performing
Imagine a population of rabbits with fur color that ranges from black to white. If this population were put in an area that has dark rocks that camouflage the black rabbits, as well as light stones that hide the white rabbits, what would most likely happen to the gray rabbits?
Gray rabbits would blend into either environment.
Gray rabbits would adapt to have black fur.
Gray rabbits would be eliminated by predators.
Gray rabbits would mutate to white fur.
The correct answer is option (C) Gray rabbits would be eliminated by predators.
Camouflage is an adaptation by organisms allowing them to blend with the environment. This helps them in surviving or escaping from their predators. It can be throught coloration or developing a particular pattern or mimicry.
The example given above is a type of camouflage through concealing coloration. Concealing coloration includes having a fixed camouflage and changing the camouflage depending on the environment. Grey rabbits cannot exhibit camouflage as the backgroud is dark rocks and light stones. As a result, these rabbits are clearly visible to the predators and get elimiated by them.
Gray rabbits in an environment with dark and light stones for camouflage would likely be at a disadvantage and potentially eliminated by predators over time. In a hypothetical situation where gray rabbits blend well, they might survive through diversifying selection.
If a population of rabbits with fur that ranges from black to white were put in an area with dark rocks and light stones, creating camouflage for the black and white rabbits respectively, the gray rabbits would likely be at a disadvantage. Since they do not blend in as well with either the dark rocks or the light stones, their intermediate color would provide less camouflage, making them more susceptible to being spotted by predators. This selective pressure could potentially lead to the gray rabbits being eliminated by predators over time.
However, in a hypothetical population where gray and Himalayan (gray and white) rabbits are better able to blend with a rocky environment than white rabbits, the presence of diversifying selection might favor the survival of these gray variants. In reality, the outcome would depend on the specific environmental conditions and the ability of the rabbits to hide or adapt.
Some studies have indicated that our eyes naturally travel from bottom left to top right, so putting the diagonal along that path can take advantage of our eye patterns.
True ort False?
Answer:
True
Explanation:
I just got 100% on this quiz
Gradpoint
5.0 ⭐⭐⭐⭐⭐
What is the endosymbiotic theory? (Cells)
The large intestine absorbs most of the ________ from the food and some vitamins and minerals.
water im [pretty sure because when i answered nutrients it was wrong
Select the FALSE statement below about the structure of myoglobin.
a. The O2-binding pocket of myoglobin contains several nonpolar amino acid sidechains that can interact favorably with a nonpolar molecule of O2.
b. The polypeptide of myoglobin provides a pocket for O2 to fit, and stabilizes the bound O2 via hydrogen bonding with the distal His.
c. The polypeptide of myoglobin protects the heme iron from oxidation.
d. The active site of deoxy myoglobin is 5-coordinate with a histidine occupying one axial position while the other axial position is left open for oxygen binding.
e. Myoglobin has a single polypeptide chain so it has 1o, 2o, 3o and 4o structure.
How was the the Hershey chase blender experiment conducted?
Final answer:
The Hershey-Chase blender experiment led by Hershey and Chase involved radiolabeling T2 bacteriophage DNA with 2P and proteins with 5S. They demonstrated that DNA, not protein, is the genetic material as radioactive DNA was found inside bacterial cells and the genetic information was used to produce new viruses.
Explanation:
The Hershey-Chase blender experiment was a crucial study in molecular biology, conducted by Alfred Hershey and Martha Chase, to determine whether DNA or proteins were the genetic material responsible for heredity. Hershey and Chase used T2 bacteriophage, a virus that infects bacteria, for their experiments. They grew the viruses in cultures containing radioactive isotopes: 2P for DNA and 5S for proteins, since DNA contains phosphorus but no sulfur and vice versa for proteins. The viruses thereby incorporated these isotopes into their DNA or proteins, respectively.
Two separate sets of E. coli bacteria were then infected with the radiolabeled phages. After allowing the phages to attach to the bacteria, the mixtures were placed into a blender to separate the phage coats from the E. coli cells. The mixtures were then centrifuged, so the heavier bacteria formed a pellet, and the lighter phage particles and detached coats remained in the supernatant. In the set with 5S-labeled proteins, the radioactivity was found in the supernatant, indicating that the protein did not enter the bacteria. Conversely, in the set with 2P-labeled DNA, the radioactivity was detected in the pellet, indicating that the DNA entered the bacteria and therefore was the material responsible for directing the production of new phage particles. Thus, Hershey and Chase concluded that DNA is the molecule that carries genetic information.
What happens when a sound wave moves from water to air?
In the air, the sound coming from water will slow down.
The sound travels by the vibration of the molecules and particles present in the medium. The water is dense medium and the molecules present in water are closely packed as compared to the air.
Due to close packing in the water molecules, the sound travels faster as compared to the air, as the molecules in the air are quite apart. So, the speed of sound coming from water to air would be slow down.
There are many methods used to obtain energy for use in our daily lives. Some of these methods have possible environmental consequences to rivers, groundwater, and organisms. One type of pollution involves excess carbon dioxide being released into the air. Some of the carbon dioxide reacts with water to form acid rain. Which energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere?
Answer: Coal,petroleum
Explanation:
he process that we call "burning" actually is chemical reactions with oxygen in the air. For the most part, the carbon combines with oxygen to form carbon dioxide (CO2), and the hydrogen combines with oxygen to form water vapor (H20).
Some of the carbon dioxide reacts with water to form acid rain, and the energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere through the burning of fossil fuels, coal, oil, etc.
What is the significance of burning fossil fuels?Carbon dioxide, which is also considered a "greenhouse gas," and other greenhouse gases in the atmosphere trap heat from the sun but never let the heat pass through the earth's atmosphere and make the earth hot. This is caused by the combustion of fossil fuels and causes air pollution, which can be harmful to human health and the earth.
Hence, some of the carbon dioxide reacts with water to form acid rain, and the energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere through the burning of fossil fuels, coal, oil, etc.
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Which of the following statements about seafloor spreading is false?
A. Continents move as the seafloor spreads along a mid-ocean ridge.
B. The oldest crust is closest to the mid-ocean ridge.
C. Magma rises through the mid-ocean ridge, forming basalt.
B. The oldest crust is closest to the mid-ocean ridge.
Explanation;Seafloor spreading refers to the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge. Seafloor spreading occurs at the mid-oceanic ridge where the divergent boundaries cause two plates to move away from each other resulting to the spreading of the sea floor.As the divergent plates move apart, new materials wells up and then cools at the edge of the plates. Seafloor spreading is important as it helps explain the continental drift in support of the theory of plate tectonics.what does the Krebs cycle produce?
The Krebs cycle produces CO2, NADH, FADH2, and ATP (or GTP) for each acetyl-CoA that enters the cycle. It turns twice for each glucose molecule that initiates glycolysis, resulting in doubled yields of these products.
Explanation:The Krebs cycle, also known as the citric acid cycle or the tricarboxylic acid cycle, is a key component of cellular respiration. In this cycle, each pyruvate molecule from glycolysis is first converted into a two-carbon molecule known as acetyl-CoA. The acetyl-CoA then enters the Krebs cycle and is further processed, leading to the production of CO2, and high-energy molecules such as NADH, FADH2, and ATP or GTP (equivalent to ATP in some organisms). During one turn through the cycle, the main outputs are:
Two molecules of CO2 (carbon dioxide)Three molecules of NADHOne molecule of FADH2One molecule of ATP or GTP through substrate-level phosphorylationAs the Krebs cycle turns twice per glucose molecule entering glycolysis, the eventual yield is doubled. Overall, the cycle plays an essential role in cellular energy production by transferring electrons to the electron transport chain, where most ATP is generated.
Experiments in warmer waters have reported as much as a 50% decline in biomass in habitats that experienced
A. a 6-degree Celsius decrease in water temperature.
B. a 6-degree Fahrenheit decrease in water temperature.
C. a 6-degree Celsius increase in water temperature.
D. a 6-degree Fahrenheit increase in water temperature.
Answer:
C. A 6-degree Celsius increase in water temperature.
Explanation:
Took the Module 1 Exam.
Organisms use different types of adaptations to aid in their survival.Which of the following is an adaptation that would not help a lion to catch its prey? a. group hunting b. hyoid bone adapted for roaring c. camouflage d. keen eyesight
Answer;
B. hyoid bone adapted for roaring
Explanation;
Many organisms are well adapted to their living and non living factors due to physiological, behavioral or structural adaptations which increases the organisms chances of survival and reproduction.
Behavioral adaptations are responses made by an organism that help it to reproduce or survive.Physiological adaptations are body processes that helps an organism to survive or reproduce Structural adaptations are features of an organism’s body that helps it to survive or reproduceIn our case, Lion has many adaptations that help it survive and help it catch its prey, these include, group hunting, camouflage and keen eye sight, however, presence of hyoid bone adapted for roaring does not help it in catching its prey.
What is the main source of energy that drives the water cycle?
The sun is the primary source of energy that drives the water cycle. It provides the heat necessary for evaporation, the initial phase of the water cycle, and influences all subsequent stages of the cycle including condensation, precipitation, and surface runoff.
Explanation:The main source of energy that drives the water cycle is the Sun. The sun's energy warms the oceans and other surface waters, which leads to the evaporation or sublimation of liquid or frozen water into the atmosphere. This water vapor then condenses into clouds, leading to precipitation that brings the water back to Earth's surface again, completing the water cycle.
Evaporation and sublimation are critical first steps in the water cycle. These processes involve the transformation of liquid water or ice into water vapor due to the Sun’s heat.
The water, now in a gaseous state, ascends into the atmosphere where it eventually condenses to form clouds due to lower temperatures at higher altitudes. This is referred to as condensation and it's often followed by precipitation, the process where water is returned to the Earth’s surface as rain, sleet, hail, or snow.
Upon reaching the surface, the water can take several paths. It can flow on the surface, leading to surface runoff, or it can seep into the soil contributing to subsurface water flow. Some of the water ends up in rivers and streams, referred to as streamflow, and eventually makes its way back to the ocean again, completing the cycle.
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How are natural selection and microevolution illustrated in this scenario?
Tsunamis are caused by _______. a. underwater volcanoes b. El Niño c. underwater earthquakes d. global warming