Answer:
dystrophin
Explanation:
Dystrophin is the protein used to reinforce the sarcolemma and help transmit the tension generated by the sarcomeres to tendons.
What is Sarcolemma?The sarcolemma, which is the muscle cell's plasma membrane, is encircled by endomysial connective tissue and a basement membrane. The sarcolemma is a membrane that is excitable and has several characteristics in common with the membrane of neuronal cells. The sarcotubular system, which extends into the interior of the muscle fiber as T-tubules, is an invagination of the sarcolemma. Through this system, the sarcolemma's depolarization spreads throughout the muscle fiber's interior. The sarcoplasmic reticulum, a second tubular structure within the sarcoplasm, is directly in contact with the T tubules as they extend into the interior of the muscle fibers towards the junction of the A and I bands. A "triad" is a tight arrangement of one T-tubule that is bound by the sarcoplasmic reticulum on both sides. Around the myofibrils, the sarcoplasmic reticulum forms a fine plexus. Ca2+ is released from the sarcoplasmic reticulum and the myofilaments begin to contract as a result of stimulation of the sarcolemma and T tubules.To learn more about sarcolemma, refer to
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1. The process by which one type of bacteria is
changed into another type is called
a. transcription.
b. transformation.
c. duplication
d. replication.
Answer:
d
Explanation:
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Sylvite is the best for manufacturing plant use, because sylvite is a key component of fertilizers, hence option A is correct.
What are minerals?Usually created by inorganic processes, a mineral is a naturally occurring homogeneous solid with a specific chemical makeup and a highly ordered atomic organization.
About 100 of the known mineral species the so-called rock-forming minerals make up the majority of the known mineral species, which number in the thousands. On the basis of their chemistry and crystal shape, minerals are categorized.
Metallic and non-metallic minerals are the two categories into which minerals fall. Metallic minerals have luster in their look and are chemically composed of metals. These minerals can be mined to obtain them as a possible source of metal.
Therefore, option A is correct.
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Kalani is told that he is the father to both of Winnie's sons, Marcus and Kevin. Marcus has type A blood and Kevin has type O blood. Winnie has type B blood. Kalani takes a blood test and finds out that he has type AB blood. Is it possible that Kalani is the father of both Marcus and Kevin? Explain your answer.
.It is possible that Kalani is the father of Marcus but he can not be the father of Kevin.
What is genotype?Genotype has to do with the total number of genes that an offspring recieves from its parents. We are told that the parents here are Kalani (blood type AB) and Winnie (blood type B).
If this is the case, it is impossible to explain the fact that Kevin has blood group O.It is possible that Kalani is the father of Marcus but he can not be the father of Kevin.
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Organism that can be found in your locality
Answer:
earthworm
Explanation:
Simply earthworm are found in under the grass
earthworm helps in making soil fertilize
In what areas of the world is biodiversity the lowest?
tropical regions
polar regions
temperate regions
ocean regions
Answer:
Polar regions
Explanation:
Because plants don't survive in the extreme cold and ice that cover these regions year-round.
Due to their intense and harsh environmental circumstances, polar regions like the Arctic and Antarctica often have the lowest levels of biodiversity. So, the correct option is B.
What is Biodiversity?The term "biodiversity", which is short for "biological diversity", describes the range of living things and ecosystems that exist on Earth. It includes a wide range of species, genetic diversity within those species, a wide range of environments, and a range of ecological processes. Humans benefit greatly from biodiversity as it provides them with food, medicine and ecological services such as pollination and water and air purification.
Because of their intense and harsh environmental conditions, polar regions such as the Arctic and Antarctica often have the lowest levels of biodiversity. These regions have a relatively limited diversity of species because the cold and dry conditions make it difficult for many species to live. Furthermore, these areas often have low population density due to the severe environment and scarce resources.
So, the correct option is B.
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4. scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and decomposers (which consume dead things). which group or groups of organisms in the forest carry out photosynthesis?
Answer: Plants, animals, and decomposers (which consume dead things) are in a forest ecosystem. Scientists are studying photosynthesis in the forest. Which group or groups of organisms should they study? A jungle ecosystem has plants, animals, and decomposers (which consume dead things).
Explanation:
When does a zygote become an embryo?
once the embryo forms a heart, lungs, and brain
a few minutes after the male and female gamete fuse
once the zygote enters a safe environment either inside or outside of their mother
once the zygote starts dividing by mitosis and cell differentiation occurs
Answer:
Explanation:
The transformation of a zygote into an embryo adheres both to nature and to nurture: not only genetics but also environment determines the outcome. This idea has assumed many forms. A territory in the early sea urchin blastula contains clones of founder cells, and each clone contributes exclusively to one territory (Cameron & Davidson, 1991). Both the lineage of a founder cell, i.e. its nature, and the position of a founder cell, which determines how it is nurtured, contribute to its fate. Fertilisation, the topic of the first Forum, fixes the genes; interblastomere communication, the topic here, regulates gene expression. Blastomeres communicate like any other cell – via ligand-receptor interactions and through gap junctions. Saxe and DeHaan review these mechanisms. The definition of ligands and receptors becomes broadened in this context, and cell adhesions as well as gap junctions enter into the story. In spite of these entanglements, it appears that nature uses the same sorts of mechanisms to get cells to specialise that she uses to keep them talking. Thus, neurons and glial cells signal to one another via glutamate receptors and gap junctions (Nedergaard, 1994). Likewise, we expect neurotransmitters (and neurotransmitter transporters) to help signal differentiation. The biophysicist may ask whether electrical properties also play a role, but that we reserve for another Forum. If gap junctions figure in development as fusion pores that pass small molecules and electrical signals between blastomeres, another parallel suggests itself. Brian Dale asked in the first Forum: How does a spermatozoon activate an oocyte? This question, which concerns gamete communication, has produced two schools of thought and remains controversial (Shilling et al., 1994). Do sperm activate oocytes via contact-mediated mechanisms or through fusionmediated mechanisms? Or do both mechanisms occur, as they appear to in development?
what type of cell are bacteria and archaea made of ?
Answer:
Bacteria are prokaryotes, lacking well-defined nuclei and membrane-bound organelles, and with chromosomes composed of a single closed DNA circle. They come in many shapes and sizes, from minute spheres, cylinders and spiral threads, to flagellated rods, and filamentous chains.
Explanation:
Answer:
Prokaryotes,both bacteria and archaea have prokaryotes, which means that the cells don't have a nucleus or other membrane-bound organelles in their cells. Like bacteria, the cells have a coiled ring of DNA, and the cell cytoplasm contains ribosomes for the production of cell proteins and other substances the cell needs.
Explanation:
hope this helps have a good day!Also can I have brainliest
If cortisol levels remain high for prolonged periods, the _____ may not function at an optimal level.
If cortisol levels remain high for prolonged periods, the immune system may not function at an optimal level.
I need help with this
C: The organelles are enclosed in membranes
1 it is a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
A. Reverse fault
B. Normal fault
C. fault
D. Earthquake
it is a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
The correct answer is letter D. Earthquake.
Earthquakes can be caused by movement of plate tectonics, eruption of volcanoes, and also man-made like huge explosions cause by explosive devices.
C-reactive protein is released into the bloodstream in response to.
Answer:
Inflammation
Explanation:
The embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception. t f
The statement embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception is false.
What do you mean by Embryonic stage?An embryonic stage may be defined as the period after implantation, during which all of the major organs and structures within the growing mammal are formed.
The first two weeks after conception are known as the germinal stage, not the embryonic stage. The third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.
Therefore, the statement embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception is false.
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Answer:
False
Explanation:
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In the dna isolation process, detergent was used to:.
In the DNA isolation process, detergent was used to:
--> facilitates homogenization. it allows the precipitate to form and stabilizes the DNA and it binds the negative ends of DNA.
Hope that helps!
Helper T-lymphocytes are also referred to as ______. Multiple choice question. CD4 cells CD8 cells CD6 cells CD2 cells
Answer:
Helper T-Cells are CD4 Cells.
Explanation:
Helper T Cells have a protein called CD4 that associates with the T-Cell receptor complex (or TCR).
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Which TWO locations are most likely to have both earthquakes and volcanoes?
O A. Transform fault zones
OB. Mid-ocean ridges
OC. Deep ocean basins
OD. Subduction zones
Answer:
the answer is C give brainliest if it's correct
The two locations are most likely to have both earthquakes and volcanoes are the plate boundaries which are very much prone to the conductance of Earth quakes. The answer to the question is option C.
What are the plates that are involved in the region of earthquakes ?
These are the tectonic plates that are involved for the same.
Both the volcanoes and the earthquakes are usually caused along the same boundaries of the tectonic plates that are due to their own movements along with the interactions. The movement in the narrow zones that are along the plate boundaries which causes most of the earthquakes.
The Ring of Fire that is also referred to the Circum-Pacific Belt which is a path passing along Pacific Ocean that is characterized by the active volcanoes and the frequent earthquakes . The major of Earth's own volcanoes and earthquakes usually take place only along Ring of Fire.
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To date, most of our natural antibiotics have been found to be produced by members of what genus?.
Answer:
streptomyces
Explanation:
Answer:
yes it's natural
Explanation:
100% natural to the century we are now so yeah
write two effect of Climate Change and write to one way to conserve environment?
1. Hotter temperatures, causing fires and making it harder to grow crops.
2. Air pollution causes lower air qualities, and makes earth hotter
One way : Carpool
What are some structural similarities between the bird wing and frog arm? (Struggling with an assignment haha)
Answer:
The wing of a bird and the arm of a human are examples of c. homologous structures. This is because they are structures which have a similar
In which form is most carbon dioxide transported in the blood?.
Answer:bicarbonate ions
Explanation:The majority of carbon dioxide is transported as bicarbonate ions. This is because erythrocytes have a high activity of carbonic anhydrase, an enzyme that catalyzes the reaction between carbon dioxide and water.
Assess It!
A disease has spread
amongst lily pads in a
pond ecosystem.
Which is true about the
impact of this disease?
A Small fish that rely on lily pads for
protection will decrease in population
The large fish population will increase
C. The water temperature will decrease
D. The frog population will increase
Answer:
The small fish populus will decrease because they need the lilypads to hid them from the big fish.
Explanation:
One species of tree snail is found on a single island in the pacific. A storm knocks down one tree that contains 50 snails and it drifts at sea for a week before coming ashore at a nearby island. The snails make it to shore and over time evolve into a new snail species. This is an example of:.
Answer:
the theory of evolution is the answer
Without heat from the Sun, the water cycle would
A)reverse.
B)not work.
C)slow down
.D)not be affected.
Answer:
not work
Explanation:
Some things in the water cycle relie on the sun to produce things like flowers and the water can't do some stuff all on its own, just like some animal relie on the sun.
Hope this helps you friend :)
ehh I hope -_-
Describe an action that might result in less atmospheric carbon dioxide.
Answer:
Here are six options for removing carbon from the atmosphere:
1) Forests. ...
2) Farms. ...
3) Bio-energy with Carbon Capture and Storage (BECCS) ...
4) Direct Air Capture. ...
5) Carbon Mineralization. ...
6) Ocean-based Concepts. ...
The Future of Carbon Removal.
Explanation:
an avalanche in the top of the Andes Mountains drastically reduces the population of conifers and mountain goats in an area. This is an example of a _____ environmental change
An avalanche reducing the populations of conifers and mountain goats is an example of natural environmental change.
What is an environmental change?This refers to sudden and often unexpected modification in factors such as weather, access to resources, among others.
What are the types of environmental changes?These changes can be classified into categories such as:
Natural environmental changes.Human-cause environmental changes.Based on this classification, the avalanche is a natural environmental change considering this is a natural disaster.
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questions in the attached img. someone help me pls
Answer:
A. Medicine — Plasmids are used as an anti-stress medicine to cope with stress-related conditions. It is also used replicate proteins. It is also used in gene therapy.
B. Agriculture — It is used for metal resistances. It is also used for antibiotic resistances. It provide bacteria with genetic advantages.
Oxytocin secretion and milk release from the mammary glands of lactating female mammals are initiated by _____.
Answer:
oxytocin - Billie
Explanation:
Hemophilia is an X-linked recessive genetic disorder. A baby girl is found to have inherited the trait from her parents. What are the phenotypes of the parents?
X-linked genes are inherited. The affected girl's father is hemophilic (X-Y), and the mother might be either hemophilic (X-X-) or carrier normal (X+X-).
What are the X-linked genes?
These are the genes located in the X séx chromosome and not in the somatic ones.
Traits coded by these genes are inherited. This is, X-linked genes are transmitted from parents to children through generations.
According to this, X-linked genetic disorder will be inherited as well.
Men have a high probability of being affected since they only have one copy of the X chromosome. In women, the effect of the mutation might be musk in heter0zyg0us state.Hemophilia is a X-linked recessive genetic disorder.
Let us represent the recessive allele with the symbol -, and the dominant allele with the symbol +.
X- is the chromosome carrying the recessive allele X+ is the chromosome carrying the dominant alleleFor the affection to be expressed, the person must be either,
X-X- ⇒ woman/girlX-Y ⇒ man/boyIf the baby girl is found to have inherited the trait from her parents, then her genotype is X-X-. She must have received one X- chromosomes from each parent.
Her father provided the X chromosome, so he must be hemophilic (X-Y)Her mother provided the other X chromosome, but she can be either a carrier (heter0zyg0us, X+X-) or hemophilic (h0m0zyg0us recessive, X-X-).Options,
Cross 1) affected father x carrier mother
Parentals) X-Y x X+X-
Gametes) X- Y X+ X-
Punnett square) X- Y
X+ X+X- X+Y
X- X-X- X-Y
F1) 1/2 = 50% of the progeny is expected to be healthy (25% X+X- girls + 25% X+Y boys)
1/2 = 50% of the progeny is expected to be hemophilic (25% X-X- girls + 25% X-Y boys)
Cross 2) affected father x affected mother
Parentals) X-Y x X-X-
Gametes) X- Y X- X-
Punnett square) X- Y
X- X-X- X-Y
X- X-X- X-Y
F1) 100% of the progeny is expected to be hemophilic (50% X-X- girls + 50% X-Y boys)
the phenotype of the father ⇒ hemophilic (X-Y)the phenotype of the mother ⇒ normal carrier (X+X-) or hemophilic (X-X-)You can learn more about séx-linked genes at
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Take your pulse for one minute and record it. Then dim the lights, shut off any music, close the door, and close your eyes. Breathe slowly and deeply for five minutes. Concentrate on taking slow, even breaths. After five minutes, take your pulse for one minute and record it. Was there a noticeable decrease in your pulse? If so, what do you think caused the drop?
Due to the high pressure of blood flowing through this vessel, aneurysms are commonly found in the ______.
Answer:
aorta
Explanation:
The aorta is the largest artery of the body and carries blood from the heart to the circulatory system
