The globular heads of myosin tie actin, framing cross-spans between the good and bad fibers. This development slides the actin fibers from the two sides of the sarcomere toward the M line, shortening the sarcomere and bringing about muscle withdrawal.
HELP ITS DUE SOOOOON
Answer:
True
Explanation:
Eukaryotic chromosomes are larger than that of prokaryotes. Prokaryotic chromosome contains a covalently closed circular DNA. Each eukaryotic chromosome contains a linear DNA with two ends. So this fact would be true.
Hope this helps :D have a great day :3
Predict what may happen to the population of pepper moths if they were relocated to a lush, green rainforest ecosystem. How would this impact natural selection and their struggle to survive
Answer:
The correct answer is - The population would decrease.
Explanation:
natural selection is a change of an organism that helps in surviving in an environment change that is unfavorable to it. If a population of pepper moths is relocated a lush, green rainforest ecosystem, it the environment could kill off the peppered moths due to their evolutionary characteristics will make them stand out to predators which decreases their population or kill them due to their diet.
Answer:
The Peppered Moth Population Will Decrease or be Completely Wiped Out.
Explanation:
The change would almost inevitably result in the extinction of peppered moths. They would become extinct, whether they were light or dark in color. Because of their color, they would be unable to blend in with their new lush environment. They would also suffer because their diets are different and contain certain animals than those available in the lush forest.
rly hope this helped! <3 c:
1. In your own words, what does it mean for a cell to be
specialized ?
Answer:
For a cell to be specialized it means that, even though the cells are similar, they differ in shape, size, function, and have a different role in our body. Every cell adapts to the function it has in the body.
Explanation:
Differentiation refers to the serial steps that a cell goes through to become mature. As the cell develops, it begins to show its own purpose and role in the human body, a process known as differentiation.
What type of information are text books good for obtaining? (multiple choice) theories experiments research basics scientific laws hypothesis fictions
Answer: theories, experiments, research basics, scientific laws, and fictions
Explanation:
Scientific theories are the explanation for a scientific phenomenon. It is verified by experimental trials. These can be obtained in text books.
Experiments are the methodologies which are followed to verify a scientific fact or theory. These can also be available in text books.
Research basics includes the steps that are to be followed while conducting a research and ethics oriented to research. These can also be included in text books.
Scientific laws are the description about a scientific phenomenon without explaining how did the phenomenon occurred. These can also be included in the text books.
Fictions are the stories or self constructed narrations which can be or cannot be based on true incidences. These can be available in text books.
Hypothesis is a supposed explanation of a particular phenomenon and it can be proved by using scientific methodology. It cannot be found in the text books as it is the original piece of research to be conducted and can be available as a part of research synopsis.
An aquifer is a non permeable layer of rock that contains or transports
4. The diagram below shows the procedures scientists use to clone a frog from the nucleus
of another frog's skin cell.
Skin cells in
culture dish
Nucleus in pipet
Inject nucleus
into egg
Tadpole
Young
embryo
Adult frog
Untertilized e99
mo
Destroy nucleus
by irradiation
The procedure is evidence that
A. The nucleus of a skin cell protects the frog.
B. Only skin cells can be used to clone a frog.
C. The skin cells are the reproductive cells in frogs.
D. The nuclei of the skin cells of the frog contain all the DNA needed to clone the
frog.
Answer:
D
Explanation:
the nuclei of the skin cells of the frog contain all DNA needed to clone the frog
The branch of science which deals with the study of a living being is called biology.
The correct option is D
The branch of biology which deals with living things along with technology is called biotechnology. In the question, the genes from the Skin cell of the frog are injected into the egg cell.
This experiment is done because scientist wants to inject the skin cell and pass this character to the new frog without fertilization.
Hence the correct option is D that is The nuclei of the skin cells of the frog contain all the DNA needed to clone the frog.
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how does a birds digestive system work?ФΔФ
Answer:
Birds have a two part stomach, a glandular portion known as the proventriculus and a muscular portion known as the gizzard. Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and starts the process of breaking down the structure of the food material.
What is one way that oceans affect the weather
Answer:
By storing solar energy, transporting heat and moisture all over the world, and driving weather systems, the ocean has an impact on weather and climate. Ocean water evaporates continually, raising the warmth and humidity of the surrounding air, resulting in rain and storms delivered by trade winds.
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2. Select the systems below that are affected by cystic fibrosis:*
A. Reproductive
B. Lymphatic
C. Respiratory
D. Gastrointestinal
E. Neuro
F. Integumentary
OOOO
Answer:
ACDFHope it helps youThe systems affected by cystic fibrosis are the respiratory, gastrointestinal, reproductive, and integumentary.
Cystic fibrosis is a condition that damages organs in the gastrointestinal system or digestive system and the respiratory system. It can lead to damages in:
The lungs (respiratory system)The pancreas (gastrointestinal system)This condition is caused by the accumulation of mucus on organs due to a defective gene. This accumulation leads to negative effects in these systems but also in other systems such as:
Frequent respiratory infection (respiratory system)Damage to the airways (respiratory system)Digestive problems such as diarrhea or constipation (digestive system)Infertility (Reproductive system)Yellowing of the skin (integumentary system)Thus, the systems affected are the respiratory, gastrointestinal, reproductive, and integumentary; while others such as the lymphatic or neurological are not affected.
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C. Suppose you catch 100 fish out of this pond. About how many of these fish would you expect to be
tagged? Explain.
Sot the Fish to catch to 100. Click Catch and check. How does the number of tagged fish shown
Answer:
C
Explanation:
For the animal you choose, briefly describe it (physical description, habitat, etc.). Then, list all the organ systems of the animal. From this list, choose one organ system to describe in detail. Describe how the whole system works and functions. Include the function of every organ involved in that organ system.
Answer:
he Axolotl, or the Ambystoma mexicanum, is located in the class amphibia and in the family of Ambystomatidae. They are a critically endangered species that resides in Mexico. More specifically, the walking fish is native only to Lake Xochimilco and Lake Chalco in central Mexico. These unique fish have many attributes that makes it different from other amphibians and fish found in lakes.
Axolotls are 9 inch "walking fish" that have the amazing ability to regenerate limbs. They can regenerate any lost limb, including their head. This salamander has a soft bodies with small "horns" sprouting from the sides of their head. These horns are actually gills, meaning that instead of having their gills located inside of their pharynx the frills are set on the sides of their head.
The spots commonly found on an axolotl are not unusual, it's part of an extremely advanced system called the lateral line system. This system consists of electroreceptive ampullary organs and mechanoreceptive neuromasts organized into lines across the creature's body. This system is connected to the nervous system, and it allows the axolotl to sense movement and vibrations in the water.
This can get you started, I didn't want to make it too easy on you! :) It has I believe 126 words, I hope you find it useful!
And pls mark brainlest!
Increasing the intensity of a stimulus may increase which of the following?
A. Firing frequency of individual neuronsFiring frequency of individual neurons.
B. Amplitude of individual action potentials in each neuronAmplitude of individual action potentials in each neuron.
C. Duration of individual action potentials in each neuronDuration of individual action potentials in each neuron.
D. Number of activated neurons.
Answer:
A. Duration of individual action potentials in each neuron
Explanation:
By leaving crop roots in the ground and stalks on the surface, no-till plowing helps prevent ____________________.
*edit* i now found the answer :) and if you are wondering what it is it soil erosion
i know its says biology but its just regular science on edge 2020
Answer:
Soil erosion.
Explanation:
No-till plowing can be defined as a farming method or technique which typically involves planting crops (seedlings) without tilling the soil rather the farmer would only open a narrow or very shallow trench of sufficient depth and width to cover up the seedlings. Thus, the no-till plowing makes crop residues to be left on the soil and by extension preventing soil erosion through the absorption of water by the crop residues.
Hence, by leaving crop roots in the ground and stalks on the surface, no-till plowing helps prevent soil erosion.
Additionally, the water retention ability of no-till plowing is usually a boon to farmers because it slows down evaporation and serves as a good protection for drought-stricken environments.
Answer:
i think weeds
Explanation:
plz correct me if im wrong
PLEASE HELP MEEEEE (AG)
Which of the following statements is true about photosynthesis and cellular respiration?
Both photosynthesis and cellular respiration occur in all living things.
Only cellular respiration occurs in all living things.
Photosynthesis occurs in the nucleus of the cell.
Only photosynthesis occurs in all living things.
Answer:
The answer is D.
Explanation:
Photosynthesis is the process through which plants utilize water and carbon dioxide to form glucose and oxygen.
3. What does the Earth's magnetic field reveal about the structure of the Earth's layers?
That the outer core is solid.
That the outer core is liquid.
That the mantle is solid.
That the mantle is liquid.
Answer:
The above answer is correct. The answer is That the outer core is liquid.
The Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.
What is the principle of magnetic field reveal about the earth?The principle of earth's magnetic field states the production of attraction by the motion of molten iron in Earth's core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.
The magnetosphere is the region that is located above the ionosphere that is defined by the extent of Earth's magnetic field in space. The Earth is composed of layers having different chemical compositions and different physical properties.
The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface.
Therefore, the Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.
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Use complete sentences or list form in order to describe the steps of replication. You must
use the following words and underline them:
Nucleus Helicase
Complementary strand
DNA Polymerase Ligase
Okasaki Fragments 5’ to 3’ Leading strand
Lagging strand
Answer:
Please find the description of the steps involved in DNA replication below. The terms listed in the question are written in BOLD.
Explanation:
DNA replication is the process by which DNA molecule is duplicated in the genome to produce two identical copies. DNA replication, which must occur prior to any cell division, involves the following steps:
- An enzyme called DNA HELICASE unwinds the double strand of DNA into a Y-shaped replication fork.
- Another enzyme called DNA POLYMERASE attaches to the single strand of DNA to add nucleotides to the growing DNA molecule.
- An enzyme called DNA PRIMASE adds a short nucleotide sequence called PRIMER, which serves as foundation for DNA polymerase to act upon.
- The DNA polymerase adds nucleotides based on complementary base pairing rule i.e. A-T, G-C.
Nucleus Helicase
Complementary strand
DNA Polymerase Ligase
Okasaki Fragments 5’ to 3’ Leading strand
Lagging strand
A Mismatch occurs when:
A. organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new circumstances.
B. when an organism is well adapted to its environment
C. when an organism inherits a mutation that decreases its reproductive success
D. when a mutation increases the reproductive success of an organism
Answer:
A
Explanation:
A mismatch occurs when organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new changes in the environment. Hence, a trait that once confers an adaptive advantage becomes inimical due to the changes in the environment.
In order words, a mismatch occurs when a once adaptive trait becomes maladaptive or no longer confers an adaptive advantage to organisms due to a change in the environment but still persists in organisms.
For example, an organism with a body adapted to aquatic habitat suddenly finds itself in a terrestrial habitat due to climate change. The body that use to be adaptive to the environment would suddenly become maladaptive to the new environment.
The correct option is, therefore, A.
Please choose the correct letter option below
Complete oxidation of one acetyl CoA in Krebs cycle produces 1 ATP by substrate level phosporylation
True or false
Answer:
False
Explanation:
Two ATP molecules are required to start glycolysis (from glucose), and 4 are generated by substrate-level phosphorylation. An additional 2 NADH molecules are generated, which can be used to generate another 4–6 ATP molecules through the electron transport chain in the mitochondria.
Identify the examples of absolute words below (multiple answers may be chosen).
A Always
B Never
C Negative
D Only
Answer:
It’s A, B, and, C
Explanation:
Where do the calories in your food come from?
Answer: Calories are the amount of energy released when your body breaks down (digests and absorbs) food.
Explanation:
The more calories a food has, the more energy it can provide to your body. When you eat more calories than you need, your body stores the extra calories as body fat. Even a fat-free food can have a lot of calories
Please help me guys!!
What do you think would have happened to the deer on the island had wolves NOT been introduced? How do you predict this would affect the ecosystem?
If the wolves had not been introduced, the population of deers will increase which would cause the deers offspring to increase in ecosystem.
What do you mean by ecosystem?An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors.
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.
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Current ethanol production as fuel does not significantly reduce greenhouse gas emissions because:____.
Answer:
Explanation:no body knows
The water cycle can have an influence on
ATP Synthase is a channel for protons to pass from and area of High concentration to an area
of low concentration. This makes in an example of:
Active Transport
Filtration
Facilitated Diffusion
Osmosis
Exocytosis
Which of the following is not a risk factor for metabolic syndrome?
A. Hyperglycemia (high blood glucose)
B. Hypertriglyceridemia (high blood triglycerides)
C. Low LDL cholesterol
D. Excess abdominal fat
Answer:
The answer is C
Explanation:
Among the following is not a risk factor for metabolic syndrome is - C. Low LDL cholesterol.
A metabolic syndrome is a group of conditions that can result in cardiovascular diseases such as heart disease, diabetes, stroke, and other health problems. Metabolic syndrome is classified only if a person has three or more of the following risk factors:
High blood glucose or hyperglycemiaIncreased levels of LDL (“bad”) cholesterol in the bloodHigh levels of triglycerides in the bloodLarge waist circumference or “apple-shaped” body due to excess abdominal fatHigh blood pressureThus, the correct answer is - C. Low LDL cholesterol
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What is the role of ATP in photosynthesis?
The pedigree below shows two generations of individuals within a family. The pedigree shows
that a daughter has a genetic trait, even though neither of her parents nor her siblings have the
trait.
7. How can the daughter have the genetic trait if no one else in the family has it?
A. The trait is determined by a recessive allele.
B. The trait is not inherited.
C. The trait is determined by a dominant allele.
D. The trait is passed only from female to female.
Answer: B The trait is determined by a recessive allele
Please help me figure this out I don't understand this.
Answer: The big blue ball is the NUCLEUS, The things with The Rib looking things, Are the MITOCHONDRIA, The green circles are called the APICOPLAST, The outside is called the RBC, You might have to search the rest up because i don't know the rest!
Explanation:
There are 3 main components of biodiversity discussed in this class. Match the biodiversity component with
the correct definition example.
Genetic Diversity
Species Diversity
Ecological Diversity
1. Organisms within an ecosystem are
interconnected through food webs
2. In a forest, there are a number of different
species of trees that make up that ecosystem
Ecological Diversity
3. Within a species, there is variation within the
gene pool
Answer:
Genetic Diversity : 3
Species Diversity : 1
Ecological Diversity : 2
Explanation: