Answer:
it is false
Explanation:
it appears as light bands under microscope
Answer:
false
Explanation:
because dark band seen under the microscope in a skeletal muscle fiber are concentration of actin protein are known as A bands because they are anisotropic when viewed with polarized light
An area classified as a temperate deciduous forest begins to experience a lack of rainfall that lasts for many years. Given enough time, if the area continues to experience a lack of rainfall, it will eventually become:__________a. savanna.b. temperate rainforest.c. shrubland, grassland, or woodland.d. taiga.
Answer:
Savanna
Explanation:
Lack of rainfall over a period of time may convert a temperate deciduous forest into a Savanna.
Grasslands are characterized by a domination of grasses rather than large shrubs or trees. Savanna is a grassland with a few scattered individual trees. Savannas are always found in areas that are quite hot. The annual rainfall in a typical savanna may range from about 76.2-101.6 cm. Some savanna regions may receive as low as 15.24 cm -25.4 cm of rain in a year, followed by a long period of drought when fires can occur.
The ion composition of perilymph is like that of interstitial fluid; high sodium and low potassium levels. If someone ruptured the vestibular membrane, the membrane between the vestibular duct (Scala vestibuli) and the cochlear duct (Scala media), what would be the effect of such a rupture on the concentration of potassium in the endolymph in the cochlear duct
Answer:
The concentration of potassium will decrease
Explanation:
The cochlear ducts are composed of two distict types of fluids: 1-perilymph, rich in sodium (140 mM) and low in potassium (5 mM), and 2- endolymph, rich in potassium (1 mM) and low in sodium (150 mM). The perilymph fluid has a similar composition to the rest of the extracellular fluids, while endolymph present a unique ion composition that is not found in other fluids of the body. It is believed that the cochlea can regulate potassium flow without using energy (i.e., without use ATP), since potassium enters into the cells through passive pathways, while this ion ion leaves the cells by an active mechanism.
Which of the following is an example of a non-mendelian pattern of inheritance? A) all traits are inherited through patterns found by Mendel. B) when individuals with the genotype BB cross, all the offspring have brown fur. C) when pea plants that are hetero-zygous for a certain trait cross some of the offspring express both distinct versions of the trait. D) when horses that are homo-zygous for red hair are crossed with horses that are homo-zygous for white hair, the offspring have both red and white hair.
During cellular movement which filaments will be the ones that are responsible for attaching and pulling the other filaments along?
Answer:
Myosin
Explanation:
Myosin are the major components of both muscle and non muscle cells in striated muscles which is responsible for contraction or movement that convert chemical energy (ATP) into mechanical work thereby generating force and movement.
During cellular movement , myosin filament will be the ones that are responsible for attaching and pulling the other filaments along because Myosin binds to actin at a binding site on the globular actin protein,it also have ATP binding sites which hydrolyses ADP to ATP , ATP binding causes myosin to release actin, which make actin and myosin to detach from each other thereby causing attachment and contraction of other filaments
What makes up the backbone of a DNA molecule? nucleic acids RNA molecules sugars and phosphates ribose and deoxyribose
Answer:
sugars and phosphates
Explanation:
gradpoint
Please help me with these questions
I will mark the Brillianest
Answer:
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What is
FOOD & NUTRITON 1
Answer:
1 How food keeps us healthy. Food is needed for energy and nutrients to exist, it provides energy for work, and warmth for the body. Everybody also needs food to build, maintain and repair their body. It is also required for control of body processes and for protection against disease and infections.
Answer:
Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.
Nutrition is the biochemical and physiological process by which an organism uses food to support its life.
Highlight 4 usefulness of science
1. It is used to cure diseases that may harm or even kill us.
2. It is used to make transportation fast and easy.
3. It is used to understand the universe better to plan for the future.
4. It is used for fast and easy communication.
RNA polymerase is an enzyme that copies (1 point)
o DNA into DNA.
O RNA into mRNA
O mRNA into tRNA.
DNA into RNA
Answer:Copies DNA into RNA
Explanation:
Sustainable practices include all of the following except
-reducing waste.
-burning fossil fuels.
-recycling.
conserving resources.
Answer:
burning fossil fuels
Explanation:
Sustainable practices include reducing waste, recycling, and conserving resources. Therefore, the correct option is B.
Fossil fuel combustion is not considered a sustainable practice. Burning fossil fuels releases greenhouse gases into the atmosphere, which contribute to global warming and environmental damage. Moving away from fossil fuels and increasing reliance on renewable energy sources is critical to promoting sustainability. Individuals and organizations can support the long-term health of ecosystems and future generations by implementing sustainable practices such as waste reduction, recycling and resource conservation.
Learn more about sustainable practices, here:
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on terms of genetic similarity, which list is ordered from most similar to least similar b. cousin, uncle, mother, non twin sibling, identical twin
Answer:
Identical Twin, non twin sibling, Mother, Cousin, Then Uncle
Explanation:
Which hormone released by the highlighted structure stimulates the release of TSH from the anterior pituitary (adenohypophysis)? Which hormone released by the highlighted structure stimulates the release of TSH from the anterior pituitary (adenohypophysis)? TRH CRH GHIH GHRH
Answer:
Explanation:
hypothalamus release thyrotropin releasing hormone(TRH) which stimulate the pituitary gland to release TSH
The activity of the thyroid gland is regulated by thyroid-stimulating hormone (TSH), also called thyrotropin. TSH is released from the anterior pituitary in response to thyrotropin-releasing hormone (TRH) from the hypothalamus.
How do you stimulate TSH production?Eating a portion of Essential Fats at every meal which includes extra olive oil, flaxseed oil, raw unsalted nuts and seeds, avocados, and oily fish, will improve thyroid hormone levels as our cell receptors become more able to take up thyroid hormone.
Learn more about thyroid-stimulating hormones here: brainly.com/question/9251938
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Help .....plz help....me
Answer:
B
1. Evaporation
2. Condensation
Explanation:
water cycle sorry I can’t do the rest because I got go dinner hope helper
Explanation:
Evaporation
Condensation
Initiation codon in eukayotes is ______
Answer:
AUG is the only initiation codon in eukaryotes.
Explanation:
Initiation codon in eukayotes is ___AUG___
The main function of a cell membrane is to allow substances to enter and leave the cell. Which is a correct description of transport through a cell membrane
Answer:
The question is incomplete, below is the completed question:
The main function of a cell membrane is to allow substances to enter and leave the cell. Which is a correct description of transport through a cell membrane ?
a. Diffusion, or passive transport, occurs when molecules diffuse from a lower concentration to a higher concentration.
b. Facilitated transport occurs when proteins that extend through the cell membrane provide a channel through which certain substances can diffuse more rapidly than by passive diffusion.
c. The lipid bilayer opens up and allows the ions or molecules to enter the cell, then closes.
d. Active transport occurs when molecules diffuse from a higher concentration to a lower concentration.
Answer:
b. Facilitated transport occurs when proteins that extend through the cell membrane provide a channel through which certain substances can diffuse more rapidly than by passive diffusion.
Explanation:
Transport through cell membranes can be broadly classified as active transport or passive transport.
Active transport requires energy in the form of ATP for the transportation of substances across the cell membrane.
Option b correctly describes facilitated diffusion, which is a passive-mediated diffusion process, where channels in the cell membrane mainly composed of proteins called transmembrane integral proteins, allow for the movement of certain molecules (mostly polar/hydrophilic) molecules that will not otherwise be transported through simple diffusion because of the hydrophobic nature of the cell membrane.
The other options are wrong because:
a. diffusion or simple transport involves the movement of substances from regions of higher to a lower concentration not lower to higher as suggested here.
c. The lipid bi-layer does not allow ions or hydrophilic molecules because it is hydrophobic in nature, and it is not a channel, so it does not open and closes
d. In active transport, transfer of molecules is from regions of lower to higher concentration and not higher to lower concentration as suggested here.
What does a botanist study
Answer:
Botany is the scientific study of plants—how plants function, what they look like, how they are related to each other, where they grow, how people make use of plants, and how plants evolved.
I HOPE THIS WILL HELP YOUHAVE A GREAT DAY :)
What organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system?
Answer: cellular metabolism
Explanation:
Cellular metabolism is chemical reactions that takes place in living organisms so that they will be able to maintain life. Cellular metabolism is made up of thousands of genes, metabolites and proteins.
Cellular metabolism is affected by the sympathetic nervous system but is not affected by the parasympathetic nervous system.
What does the hydrosphere include? fish dust plants rivers
Answer:
La hidrosfera incluye océanos, mares, ríos, lagos, agua subterránea, el hielo y la nieve. ... El agua dulce representa 3 % del total y de esta cantidad aproximadamente 98,2 % está congelada, de ahí que solo se tenga acceso al 0,08 % de toda el agua del planeta
Explanation:
Answer:
the answer is rivers
Explanation:
The hydrosphere is the combined mass of water found on, under, and above the surface of a planet, minor planet, or natural satellite. Although Earth's hydrosphere has been around for about 4 billion years, it continues to change in shape. And i got this answer right on the test, hope this helps!
If an experimenter wants to use the GFP method but needs to detect the presence or absence of several proteins at the same time, he can take advantage of mutational variants of GFP that emit what light?
Answer:
different colors
Explanation:
The green fluorescent protein (GFP) is a type of protein widely used in molecular biology laboratories because this protein can be used to detect the expression of proteins and to identify cellular structures. This protein displays green fluorescence when it is excited by blue light and, in the last years, many variants of the GFP protein have been developed. The altered GFP proteins react to distinct wavelengths of light, thereby emitting light to different colors. The mutants forms of the GFP protein are produced by genome engineering techniques that generate modifications capable of altering the folding of the normal GFP protein.
What is the only source of energy production for RBCs?
Answer:
Anaerobic oxidation of glucose
In humans, insulin is manufactured in the pancreas, insulin is a peptide hormone that causes the body’s cells to take up glucose. The blueprint for the polypeptide chain that is insulin is found in the — of specialized pancreatic cells.
Answer:
In type 1 diabetes the immune system erroneously attacks the beta cells that produce insulin in your pancreas. It causes permanent damage, leaving your pancreas unable to produce insulin. Exactly what triggers the immune system to do that isn't clear. Genetic and environmental factors may play a role.
Explanation:
Nucleic acids
Composed of Carbon, Hydrogen, Oxygen, Nitrogen and phosphorous.
DNA
The universal code that stores genetic information in all organisms
Semi
conservative-Bases in original strand split and new nucleotides complementary base pair to form two new strands
Mutations
Any change to the DNA sequence
Gene mutation
Permanent change in the DNA sequence that makes up a gene.
Transcription
The process of copying a nucleotide sequence of DNA to form a complementary strand of mRNA
Translation
Process by which mRNA is decoded and proteins are made.
Codon
Three nucleotide bases
tRNA
Reads the codon on the mRNA using anticodons and the complimentary base pair rules and delivers the amino acids
What would be the replicated DNA strand for the following DNA sequence?...GCGTATG
CGCATATC
What would be the mRNA and tRNA be for the following DNA sequence?...AGGTTA
mRNA...UCCAAU. tRNA...AGGUUA.
The process of converting the genetic message from DNA into ____ is called transcription.
mRNA
How many amino acids are in the human body and what do we call the bond that holds them together?
20; Peptide bond
A single strand of DNA contains the following nine nucleotides in order ACTTATGGA. What sequence of bases will be present on the complementary strand of DNA?
TGAATACCT
In humans, insulin is manufactured in the pancreas. Insulin is a peptide hormone that causes the body's cells to take up glucose. The blueprint for the polypeptide chain that is insulin is found in the __________ of specialized pancreatic cells.
DNA
Given the sequence of DNA nucleotide bases TTAGCCTTG, give the complementary mRNA produced during transcription.
AATCGGAAC
Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make.
DNA...messenger RNA...transfer RNA...Protein
Why is DNA replication considered semiconservative?
Each half of the old DNA strand serves as a template for the new growing strand causing the copied DNA to half new and half old.
What is a CAFO? Spell out what the acronym stands for. Briefly describe what the animals experience there. How does the way they are treated also affect us?
Answer:
Concentrated Animal Feeding Operation
Explanation:
CAFO stands for Concentrated Animal Feeding Operation.
CAFO helps in the efficient care of the animals. They are provided with good food sources and also help provide a standard shelter for their optimal production.
It affects us as there is a high probability on the presence of cheap and high quality livestock products such as egg, meat etc due to the efficiency in animal care carried out.
g Riboswitch is a mechanism of gene activity regulation by mRNA conformation. Riboswitch can regulate ______.
Answer: c. both transcription and translation
Explanation:
Riboswitchs are mRNA elements that influence the activity of genes certain genes by regulating same and are found in other organisms apart from humans such as bacteria, plants and fungi.
They regulate activity by binding to specific small molecules known as ligands thus causing a structural rearrangement that enables either transcription or translation to be modulated in the gene.
For lions how can we determine who the father is
The data shown above is a life table for the female Belding ground squirrel in the Sierra Nevada
Mountains.
Calculate the mortality rate (per thousand) between the ages of 1-2.
You must show your work in order to receive credit for your answer!
Answer:
377
Explanation:
you plus 252and 125 together and you will get 377
I need help FAST!! U have too match the letters with the #.!
8 B
9 B
10 D
11 C
12 C
13 B
14 A
15 A
16 C
17 A
18 A
19 D
20 A
21 D
22 D
which word of the poem are an example of a simile
Answer:
I don't know what exactly you are asking so
A simile is comparing 2 thing using "like" or "as"
Example: Her cheeks were red as a rose
Which philosopher believed that the soul operated on three levels: reason, will, and desire? A. Socrates B. Plato C. John Locke D. Hippocrates Please select the best answer from the choices provided A B C D
Answer:
B. Plato
Plato was known as a renowned philosopher in Athens, Greece. He believed that the soul operated on three levels which include Reason, Will and Desire.
Plato was of the notion that the soul was tripartite as a result of it having three levels of operation. He also believed that the soul can never die and will still be in operation and thought even after a person dies.
Answer:
Which philosopher believed that the soul operated on three levels: reason, will, and desire?
A. Socrates
B. Plato
C. John Locke
D. Hippocrates
Celluose is a type of
1 lipid
2 carbohydrate
3 protein
4 grass
Answer:
cellulose is a type of carbohydrate. hope it help you.
Answer:
2.Carbohydrate
Explanation:
Thank you✌️❣️✌️
All of the following are functions of the central nervous system except it interprets signals from the external environment it translates signals from the internal organs it receives messages from the peripheral nervous system it sends messages directly to muscles and glands hint: its not A or B
Explanation:
It sends message directly to muscles and glands