The image below shows one muscle cell. Please choose the name of the structure that is labeled A.
1. Myosin
2. Actin
3. myoglobin
4. troponin
Answers
The name of the structure labeled as A is 'myosin'. Moreover, the name of the structure labeled as B is 'actin'.
A sarcomere is the basic unit of muscle contraction. This unit is defined as the region between two Z-lines.
Band A is a central band composed of the thick filaments of myosin.
Moreover, the sarcomere also has two halves of a band known as I-band, which consists of thin filaments of actin.
Muscle contraction is caused by the interaction between actin and myosin protein filaments in the sarcomeres.
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Related Questions
Contrast primary succession and secondary succession. Give an
example of each.
Answers
Answer:
Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after fire, harvesting, logging, or abandonment of land or the renewal after a disease outbreak
¿Pueden los icebergs ser considerados como
un tipo de glaciar?
Answers
Answer:
La diferencia entre un iceberg y un glaciar es que el iceberg es la pieza de un glaciar que se desprende (o se rompe) cuando las temperaturas suben. Los glaciares están formados por una gran masa de mezcla de nieve y hielo que cubre el fondo del valle de una cadena montañosa.
Explanation:
List earth's layers from hottest to coldest.
Answers
Answer:
inner core, outer core, mantle, crust
Explanation:
inner core is hottest
crust is coldest
Answer:
Inner core, outer core, mantle, crust!
On the diagram below, what is the name of region B?
Answers
The placenta and umbilical cord act as a life support system. What role do they play in the healthy development of the fetus?
Answers
Answer:
It attaches to the wall of the mother's uterus, and the umbilical cord extends from it, connecting to the baby. It is the baby's life support system and breathing organ while in the womb. The placenta allows oxygen and nutrients to move from the mothers blood to the fetus' blood.
If an egg cell contains 4 chromosomes, how many chromosomes would a sperm cell of the same
species contain?
a. 4, b.8, c.16
Answers
what can a negative consequence of humans being hunter-gatherers?
A. they needed to stay in one location for food
B. Nate cultivated their own food
C. they had to move around to find food
D. they had to have large families to help on the farm
Answers
Answer:
C
Explanation:
A star has less mass than a galaxy and more mass than a planet.
True
False
Answers
Answer:
True
Please mark brainliest!
Answer: TRUE
Explanation:
these correctly compares the masses of different objects in the universe?
State one way by which Carbon Dioxide increases in the atmosphere
Answers
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
Answer:
pollution is the way by which carbon dioxide increases
Why does sperm development occur in an external
structure of the body?
to give sperm easier access to the urethra
to allow easier blood flow
to manage sperm's temperature
to keep it separate from the rest of the body
DONE
Answers
Answer:
To manage sperm's temperature.
Explanation:
Because the testicles can move depending on heat. They come closer to the body in the cold, farther out in heat.
Thank you to anyone who answers .
Answers
Answer:
D
Explanation:
Answer:
i think its D but im so sorry if it wrong my second answer would probably be A
Explanation:
i really hope this helps sorry if it doesn't
Which of the following is used as biochemical evidence for evolution? *
a. Similarities in bone structures
b. Similarities in DNA
c. Fossil record
d. Similarities in eye function
Answers
The unicellular organism sulphur bacterium is autotrophic, lives in a sulphur lake and is asexual. Can you describe its behaviours and features and classify it in the correct domain?
Answers
Answer:
bacteria
Explanation1 Bacteria. 2 Protists. Lab Comparing Algae and. Protozoans. 3 Fungi ... ways, and they can describe some of the internal structures of organisms related to ... Structure and Function Bacteria cells are ... Most eubacteria have been classified and identified based ... their lives as one-celled organisms and part of their lives as.
Missing: behaviours | Must inclu:
Bro help me please someone
Answers
Answer:
B
Explanation:
Answer:
B
Explanation:
coz it more direct in terms of thesis
Two insect groups vary genetically by two genes. When put together, they were able to reproduce and produce offspring that could also breed. Which best describes this insect population?
The insects experienced geographic isolation.
The insects experienced reproductive isolation.
The insects are different species.
The insects are the same species.
Answers
Answer:
The insects are the same species.
Explanation:
The insects are the same species because they interbreed with each other successfully. If the organisms belongs to the same species, they have the ability to interbreed with each other and produce fertile offspring while on the other hand, different species can't interbreed with one another. These two organisms have some genetic variations among each other due to environmental factors that leads to the differences between these two organisms.
The insects are the same species because they were able to reproduce and produce offspring that could also breed.
What are species?Species are a group of related organisms which are able to interbreed and produce reproductively viable offspring.
The species level of taxonomy is the closest relationship and has the fewest number of organisms.
Since, the two insect groups were able to reproduce and produce offspring that could also breed, they are of the same species.
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In which division phase is the nucleolus formed and spindle fibers broken down?
anaphase
metaphase
prophase
telophase
Answers
I need help please I’m on the last question on my ixl and I don’t want to mess up
Answers
Answer:
top one is mountain range
Explanation: I think
the bottom one is Continental crust
I NEEEDDD HELP PLEASE
Answers
GIVING BRAINLIEST AND EXTRA POINTS!!
The octopus can change its coloring to blend into its environment, and the sweet pinesap plant appears to look like dead leaves on the ground. How do these adaptations help the plant and animal survive?
A) They protect them from predators.
B) They protect them from the environment.
C) They allow them to stand out.
D) They allow them to reproduce.
Answers
What beak shape do you think will be best for finding food in a period of abundant rainfall?
Answers
Answer:
Shorter beaks will be best for finding food in abundant rainfall.
An individual who exhibits a mixture of schizophrenic symptoms most likely has undifferentiated schizophrenia. Please select the best answer from the choices provided OT OF
Answers
Answer:
True
Explanation:
An individual who exhibits a mixture of schizophrenic symptoms most likely has undifferentiated schizophrenia.
The most likely diagnosis for someone who displays a variety of schizophrenic symptoms is undifferentiated schizophrenia. The aforementioned is therefore True.
What is schizophrenia?The illness that impairs a person's capacity for clear thinking, feeling, and behaviour is schizophrenia. Although the precise origin of schizophrenia is unknown, it is thought that a mix of genetics, environment, and changes in brain chemistry and organization may be at play.
Schizophrenia is characterized as disorganised speech or behaviour, depressed participation in daily tasks, and ideas or experiences that appear disconnected from reality. Memory loss and attention problems could also be present.
Therapy is typically ongoing and frequently consists of a mix of prescription drugs, psychotherapy, and well-coordinated specialty care services.
So, the given statement is True.
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The Rio Grande River separates Mexico from Texas.
What most likely created the riverbed?
A.glaciers
B.plate collisions
C.volcanoes
D.water erosion
Answers
Answer:
d I think or b?
Explanation:
water could cause it to form a river and spread over time
mutations in dna may or may not result in a change in the phenotype of an organism. in which of the following situations will a mutation appear in the phenotype of an individual
Answers
The type of mutation which may not result in any chage to the penotype of an organsim is called a silent mutation.
What are mutations?Mutations refers to the changes that occur in the DNA of an individual organism. These chages may or may not change the appearance (phenotype) of the orgamsim.
The type of mutation which may not result in any chage to the penotype of an organsim is called a silent mutation.
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How do doctors use humans DNA to improve humans health?
Answers
Answer:
The medical and scientific visionaries who planned the Human Genome Project Already, doctors can better categorize some cancers by examining the outside of the protein-coding regions of our DNA, for example in the robust medical informatics tool that healthcare providers can readily use to
Explanation:
2. High-pressure systems usually are associated with are associated with A. Clouds and precipitation, fair weather B. The jet stream, fronts C. Fair weather, clouds and precipitation D. Fair weather, fair weather
Answers
Answer:
Correct Answer ( A.) High pressure usually are associated with fair weather and low pressure systems are associated with clouds and precipitation
Explanation:
High pressure systems are usually are associated with ___________ and low-pressures systems are associated with _____________.
Humans, and other animals, exhale
A. oxygen
B. natural gas
C. carbon dioxide
D. cytoplasm
Answers
Answer:
C
Explanation:
Humans,and other animals,exhale carbon dioxide and inhale oxygen.
Answer:
c: humand and animals exhale carbon dioxide
Write the complementary sequence for this strand of DNA:
ATTCGCAT
Answers
Answer:
TAAGCGTA
Explanation:
HELPS
(THIS PART IS TO GET EXTRA CHARACTERS, DONT PAY ATTENTION TO IT)
Answers
Answer:
C. Sex cells
Explanation:
The process shown in the figures is Mitosis, which is the division of cells that end in 2 identical daughter cells. Sex cells, however, do not go through mitosis as their offspring are genetically different; they go through a process called meiosis. The other cells listed are all somatic and therefore go through mitosis, so C must be correct.
Answer:
D. Muscle Cells because my sister is a 6th grader she told me the answer
Explanation:
Describe the role of DNA helicase, DNA polymerase and DNA ligase in DNA replication.
Answers
Answer:
a DNA helicase) has seperated two orginal strands of DNA, the polymerase moves along the template strand and polymerizes free nucleotides into a new antiparallel strand. ... DNA ligase joins pieces of DNA together, mainly joins Okazaki fragments with the main DNA piece.
Someone please bro me !!
Answers
Answer:
i think the answer is b.
Explanation:
tell me if this is incorrect
Answer:
The second one
Explanation:
A thesis statement is usually at the end of an introductory paragraph. The sentences that precede the sentence will introduce it, and the sentences that follow will support and explain it.