Answer:
Having a similar dna makeup as one animal but our features and genetic makeup different than that one animal.
Explanation:
There is unity in having the same dna as one animal but diversity in our features
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Which statement best describes the step in muscle contraction when the sarcomere is the shortest?
A The sarcomere is contracted, and the actin and myosin filaments are partially overlapped.
B The sarcomere is relaxed, and the actin and myosin filaments are partially overlapped.
C The sarcomere is contracted, and the actin and myosin filaments are completely overlapped.
D The sarcomere is relaxed, and the actin and myosin filaments are completely overlapped.
Answer:
C The sarcomere is contracted, and the actin and myosin filaments are completely overlapped.
Explanation:
In rest, the tropomyosin inhibits the attraction strengths between myosin and actin filaments. Contraction initiates when an action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing calcium into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites. Myosin heads join the uncovered actin-binding points forming cross-bridges, and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament. Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.
In the sarcomere, which is the contractile unit of skeletal muscles, there are
Thick myosin myofilaments in the central region belonging to the A band. Thin filaments united to the Z lines, extending in the interior of the A band until they reach the border of the H band. Thin actin filaments composing the I band, which belong to two sarcomeres adjacent to a Z line.When the muscle contracts, the muscular fiber gets shorter and thicker due to the reduction in the length of the sarcomere. The H line and the I band get shorter. The Z lines get closer to the A band, meaning that they get closer to each other. A band keeps constant in length. This change is produced by movement mechanisms that involve a change in the relative position of actin and myosin filaments.
Answer:
C
Explanation:
edge 2021
Which method of waste treatment is LEAST harmful to the environment?
Answer:
c
Explanation:
because burning burying and landfill are all harmful
Because the cells of skeletal muscle are relatively large and cylindrical in shape, they are also known as
Answer:
fibers or tubules.
Explanation:
Importance of the water cycle
Answer:
because it ensure the availability of water for all livings, 95% of our world is covered with water but most of them are either forzen or under ground and also purifies water which can be ready for reuse.
The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the
[tex] {\bold{\red{\huge{\mathbb{QUESTION}}}}} [/tex]
The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the
[tex] \huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}[/tex]
The nephron loops of the juxtamedullary nephrons are surrounded by a looping, ladder-like blood vessel called the Peritubular Capillary network
This network is formed by the Efferent artiole to absorb the non waste martial which is flown out in the ultrafiltration of Glomerular capsule .
A teacher gave the lab group shown below an "unsafe practice" warning. What is most likely the basis for the teacher's warning?
1. the movement of water into area with high concentration of dissolved solutes in order to equal out the solute concentration is
a) concentration
b) diffusion
c) osmosis
d) blood oxygen level
Select which statements are a part of natural selection.
organisms better adapted to their environment tend to survive
organisms better adapted to their environment tend to reproduce and increase in number
organisms pass on their traits to succeeding generations.
over time, favorable traits become more common in a population
Answer:
organisms better adapted to their environment tend to reproduce and increase in number
Answer: *organisms better adapted to their environment tend to survive
*organisms better adapted to their environment tend to reproduce and increase in number
*organisms pass on their traits to succeeding generations.
*over time, favorable traits become more common in a population
Explanation: all of them are correct :)
How is an organic compound different from an inorganic compound?
Organic compounds contain carbon atoms bonded to other atoms.
Inorganic compounds contain oxygen atoms and hydrogen atoms.
Organic compounds come only from nonliving things.
Photosynthesis is responsible for organic compounds.
Answer:
The correct answer is
" organic compounds come only from nonliving things".
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Organic compounds contain carbon atoms bonded to other atoms. The correct option is A.
What are organic compounds?Any of a wide area of chemical compounds in which one or many carbon atoms are covalently connected to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.
Carbides, carbonates, and cyanides are among the few carbon-containing compounds that are not classified as organic.
The main distinction between organic and inorganic compounds is that organic compounds always contain carbon, whereas most inorganic compounds do not.
Furthermore, almost all organic compounds contain carbon-hydrogen or C-H bonds.
Organic foods are grown without the use of synthetic pesticides, fertilizers, or herbicides.
Organic meat, eggs, and dairy products are derived from animals that have been fed natural feed and have not been given hormones or antibiotics.
Thus, the correct option is A.
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If a person uses up his or her reserve supply of glycogen and still does not eat, the body will break down ____ to provide glucose for the brain.
Answer:
carbohydrates
Explanation:
this is because even though the person hasn't eaten he or she still has an amount of carbohydrates in the body that can be broken down and its end product glucose will be obtained
¿Cómo transformamos las fuentes de energía renovable en energía eléctrica necesarias para el desarrollo sostenible de nuestro país?
Answer:
Answer to the following question is as follows.
Explanation:
Natural energy is used to generate power in renewable technologies. Wind, wave, ocean, hydro, biomass, and solar energy are all potential sources of energy. ... A variety of technologies, such as floating offshore wind farms, biomass power plants, and hydroelectric systems, will be required to achieve this.
Renewable energy production and utilisation will enhance energy security, the environment, the economics, mechanical production, construction, transport, and industry, as well as assist in the creation of new employment. Solar, wind, and biomass energy can fulfil local energy demands while also helping to enhance environmental protection.
The water vascular system of echinoderms The water vascular system of echinoderms functions in locomotion and feeding. functions as a circulatory system that distributes nutrients to body cells. moves water through the animal's body during filter feeding. is bilateral in organization, even though the adult animal is not bilaterally symmetrical.
Answer:
The water vascular system of echinoderms functions in locomotion and feeding.
Explanation:
The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.
Cell replication is important for reproduction of body cells and reproduction of gametes. Which type of reproduction occurs only in gametes
Answer:
meiosis
Explanation:
meiosis occurs in reproductive organs
what is a tropic level? give an example
Answer:
Trophic Level Definition. A trophic level is the group of organisms within an ecosystem which occupy the same level in a food chain.
Examples of Trophic Level. Primary producers, or ”autotrophs”, are organisms that produce biomass from inorganic compounds
Explanation:
List in order the levels of classification,beginning with domain
Answer:
The answer is Domain, kingdom, phylum, class, order, family, genus, species.
Which organism in the food web below is found in the first trophic level of the
ecosystem?
A. Fungus
B. Strangler fig
C. Fruit bat
D. Sloth
Fungus is the organism in the food web displayed in the image in the first trophic level of the ecosystem.
What is trophic level?Trophic level is defined as the position of an organism in the food chain or food web.
The trophic level consists of organisms at different levels. The first trophic level is made up of producers that initiate the transfer of energy.
According to this question, an image showing a food web is given. The first trophic level in this food web is the fungus because it starts the energy transfer.
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A man with Type B blood has children with a woman with type A blood. Their children have the following blood types, A, AB, B, and O. What are the genotypes of the parents? What would be the genotypes of the parents if the offspring could only have type AB or A blood
the child has the blood type of Ab its obvious
Explanation:
only when both alleles is O, the blood group can be O. Thus both parents must have O as one allele
Thus man's genotype: BO or
[tex] { | }^{b} i[/tex]
Woman's genotype : AO or
[tex] { | }^{a} i[/tex]
When
the children can not have O blood
The children cannot have B blood
means the man have BO
[tex] { | }^{b} i[/tex]
and woman have AA
[tex] { | }^{a} { | }^{a} [/tex]
Because
if man have BB, and woman have AA
children can only have AB
if man have BB, and woman have AO
children can only have AB and B
Brainliest please~
What is the plural of drive-in? Use a dictionary if necessary.
O drives-in
O drive-ins
O both
if masquiteos have babys in water then can the have babbies in fog
Maybe, mosquitoes lay eggs in still water like a in pail or bucket
In addition to highly repeated DNA sequences and unique (single-copy) DNA sequences, a third class of DNA exists. What is it called, and what types of elements are involved in it
Answer:
long-read sequencing
Explanation:
a method of dna sequencing under active development
The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.
Answer:
some energy is transferred to the smaller organisms and the rest is stored in the bodies of larger animals
Select the correct locations on the image.
in which four locations do hurricanes occur?
Answer:
Explanation:
Hope that helps
which of the following structures helps our sense of balance
Answer:
D answer is correct
Explanation:
semi circular helps our sense of balance
Answer:
eardrum
Explanation:
The ear is a sensory organ that picks up sound waves, allowing us to hear. It is also essential to our sense of balance: the organ of balance (the vestibular system) is found inside the inner ear. It is made up of three semicircular canals and two otolith organs, known as the utricle and the saccule
Please help
Please answer correctly
Answer:
1 a
2 b
3 c
Explanation:
The theory of natural selection states that
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:
Which structure is represented by the letter C?
Choose 1 answer:
A
Chloroplast
B
Mitochondria
C
Vacuole
D
Nucleus
Answer:
A. Chloroplast
Explanation:
[tex]{correctmeifiamwrong}}[/tex]
Answer:
A chloroplast
Explanation:
in your own words, what is the definition for Anti-codon?
Answer:
Basically an Anti-Condon is a sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.
Explanation:
Codons are trinucleotide units that present in mRNA and codes for a particular amino acid in protein synthesis. Anticodon is trinucleotide units that present in tRNA. It is complementary to the codons in mRNA.
Hoped this helped :)
How did Newton map the orbits of the planets?
Answer:
Newton developed a mathematical formulation of gravity that explained both the motion of a falling apple and that of the planets. He showed that the gravitational force between any two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them
Explanation:
What is Science ???.........
Answer↷
Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.
➦I hope it seemed helpful to you!
Answer:
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2. Why are humans considered animals?
A. Their zygotes undergo changes to turn into a blastula.
B. Human cells have cell walls and are unable to move.
C. Humans can reproduce asexually when under stress,
D. Animals and humans are both uni-cellular organisms.
Answer:
It's A
Explanation:
Had it on a test
Humans are considered animals because as in animals zygotes after cell division turns into a blastula, hence option a is correct.
What are animals?More than any other species, humans are capable of learning new things. Indeed, the majority, but not fully, of what distinguishes us from other animals is anchored in language.
In addition, because we have a backbone, humans are considered to be members of the chordate animal phylum.
The zygote is split into the blastula after fertilization, three germ layers develop in the blastula, which in some species is a hollow ball of cells, during a process known as gastrulation.
Therefore, humans are classified as members of the primate order within the animal group and having the blastula stage, hence option a is correct.
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