Answer:
E
Explanation:
True/False: In a neuron at rest, the concentration of sodium ions is 14 times higher outside the cell than inside the cell.
Answer:
true
Explanation:
The sodium and chloride ion concentrations are lower inside the cell than outside, and the potassium concentration is greater inside the cell. These concentration differences for sodium and potassium are due to the action of a membrane active transport system which pumps sodium out of the cell and potassium into it.
the skeletal system is not responsible for which of the following
Answer:
The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs. The skeletal system is the support system for the body. It gives the body shape, form, and mobility while providing protection for sensitive organs.
Explanation:
The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.
What is skeletal system?The main structural component of your body is the skeletal system. It is made up of bones and connective tissue, such as ligaments, tendons, and cartilage.
Vertebrates are creatures with a spinal column or backbone, including humans. They are supported by a strong internal framework that is built around a noticeable spine.
Our bodies' living bones use oxygen and release waste products throughout metabolism. They have functional tissues that require nutrients, blood flow, and the ability to remodel or change shape in response to changes in mechanical stress.
The skeleton, which is made up of bones, acts as a rigid framework to support and shield the body's soft organs.
Therefore, The body is supported by its skeletal structure. It gives the body form, motion, and shape while safeguarding delicate organs. The body is supported by its skeletal structure.
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Why would Humans would not be able to repair and grow your muscles without bacteria
Answer: the genes of those microbes are more responsible for human survival than the genes of our own human body! Not all of the bacteria in our bodies are bad. Just as we cannot live without air and water, we cannot live without our microbes. So, the cells that make our muscles function are not even our own body cells!
lizards on a small island are more likely to have to mate with close relatives. the form of microevolution is
Answer: the founder effect
Explanation:
In camellia plants, flower color is controlled by a single gene with codominant alleles. A camellia plants with red flowers (RR) is crossed with a camellia plant with white flowers (WW). What are the expected phenotypes of the offspring of this cross?
Answer:
All will have both red and white flowers because the incomplete dominance have two combined alleles given for the offspring with intermediate phenotypes. Then offspring will be pink coloured while in codominance all alleles are expressed in phenotype in the offspring together so the red and white flowers both will be shown.
Explanation:
which process is a plant incapablevof conducting in the dark why
Answer:
hiiiiiiiiiiiiiiiiiiiii
Answer:
During night hours, most plants switch from photosynthesis to the opposite process, respiration, in which carbon dioxide and water are produced rather than consumed.Explanation:
The kind of gene whose product interacts with other nucleotide sequences to affect their transcription or translation is a _____ gene.
Answer:
constitutive gene.
Explanation:
i went to 6th grade
As you hold a barbell and begin to flex your arm in a curl, your biceps brachii slowly lifts the weight by using more and more motor units. This phenomenon, which increases the strength of the contraction, is referred to as .
Answer:
Recruitment
Explanation:
The top strand of the DNA molecule was used as a template to transcribe the mRNA
Agree
Disagree
Why
Answer:
The upper strand of DNA is the "mRNA-like" strand. The lower strand is the strand that is complementary to the mRNA. The -35 region (TTGACA) and -10 region (TATATT) of the promoter sequence and the transcriptional start site (the A) is indicated on the coding strand.Name the 2 different types of endoplasmic reticulum and explain the function of each type endoplasmic reticulum to the cell . (ie - what does each one 'produce', or make for the cell)
Answer:
The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.
Explanation:
Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.
Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones.
have a darling weekend ^w^
Circle the letter of the phrase that best completes the sentence.
The cell theory was
a. first identified in 1665
b. the end result of many scientific investigations.
c. described by Rudolf Virchow.
d. Both (a) and (b)
Answer: D
Explanation: the cell theory took many years to fully learn about and publish and many different scientists, biologists etc had to investigate in order to finalise the hypothesis. Also, it was first identified in 1665 by Robert hooke.
Cara and Chuck were looking at pond water through a microscope. They saw this image. Cara wondered what it was. Chuck said it had to be a living thing because it was Question 1 options: green. Moving. Made of cells. Round throughout.
the small bones in the middle ear that transmit vibrations to the inner ear
Answer:
, yes..............
Explanation:
because the vibrations are transmitted to the inner ear after the bones amplify it
Ossicles are the body's tiniest bones. the malleus (hammer), incus (anvil), and stapes (stirrup). Ossicles amplify sound.
What are ossicles?Ossicles are very little bones; in fact, they are the tiniest bones in the entire human body. The malleus (hammer), the incus (anvil), and the stapes are the names of the three bones because of the forms they make (stirrup). The sound is amplified even further by the ossicles.
In order to reach the eardrum, sound waves must first enter the outer ear and then proceed via the ear canal, which is a very short conduit. The incoming sound waves cause the eardrum to vibrate, and the eardrum in turn transmits these vibrations to three very small bones located in the middle ear. The malleus, incus, and stapes are the names given to these three bones.
Hearing is dependent on a series of intricate steps that convert sound waves in the air into electrical impulses. These steps are necessary for hearing.
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What is the coloured ink indicator? Can anyone explain me its function? i really need help
Answer:
Bioindicators are species, groups of species or biological communities whose presence, abundance and biological conditions, in real ecosystems or through the use of laboratory toxicity tests, to make inferences about the quality of the environment.
How do consumers obtain energy and nutrients?
how do consumers obtain energy and nutrients
Answer:
They eat
Explanation:
Consume-er
Answer:
by eating other organisms.
hope this is right. Let me know:)
Explanation:
1. Where does the energy of food originally come from?
in the gel electrophoresis lab, you determined the ________ of three different dna samples.
In the gel electrophoresis lab, you determined the genotype of three different DNA samples.
Gel electrophoresis is a process that allows you to separate fragments of DNA based on size. You place different size fragments of DNA into a gel, then apply current to the buffer surrounding the gel, the DNA will travel through the gel but move at different speeds based on the different fragment sizes. Larger fragments of DNA will move slower than smaller fragment sizes.
Let consider two different alleles:
the bigger allele -- Athe smaller allele -- aThe bigger allele happens to contain a restriction site that is allowed to be cleaved by a restriction enzyme while the smaller allele has a mutation in the restriction site that means that it will not be recognized and cleaved by that same restriction enzyme.
Let us remember that the person will have two copies of this gene and can be:
H0m0zygous dominant AAh0m0zygous recessive aaheterozygous AaAn individual with h0m0zyg0us AA only have versions of the gene that will be cut by the restriction enzymes, each allele producing a small fragment of DNA and a medium-size fragment of DNA
An individual with the genotype aa only has the version of the gene that does not have the restriction site and therefore does not get cut by the restriction enzyme. The DNA sample from this individual will have a single larger fragment of DNA.
When you isolate DNA from heterozygous Aa, half of the DNA isolated has the allele with the restriction site that gets cut into two fragments while the other half will have the allele that does not have the restriction site and remains whole when a restriction enzyme is added.
Therefore, we can conclude that in the gel electrophoresis lab, you determined the genotype of three different DNA samples.
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HELP NEEDED!!!!!!!!!BIOLOGY
Answer:
Explanation:
isotonic - direction of osmosis is equal on both sides
hypertonic - direction of osmosis is outside of the cell
hypotonic- direction of osmosis is into the cell
High-energy electrons from NADH and FADH2, are passed into and along the____ The energy from the electrons moving down the chain is used to move H+ ions across the_____ H+ ions build up in the_____ space, making it_____ charged and making the matrix negatively charged. in the inner membrane. H+ ions move through channels of______ The ATP synthase uses the energy from the moving ions to combine ADP and phosphate, forming high-energy______
Answers:
High-energy electrons from NADH and FADH2, are passed into and along the electron transport chain .
The energy from the electrons moving down the chain is used to move H+ ions across the inner membrane .
H+ ions build up in the intermembrane space, making it positively charged and making the matrix negatively charged.
In the inner membrane, H+ ions move through channels of ATP synthase .
The ATP synthase uses the energy from the moving ions to combine ADP and phosphate, forming high-energy ATP .
A particular diploid plant species has 48 chromosomes, or two sets. A mutation occurs and gametes with 48 chromosomes are produced. If self-fertilization occurs, the zygote will have _____ set(s) of chromosomes.
Answer:
4 sets
Explanation:
Both gametes will each have 48 chromosomes (2 sets). So if fertilisation were to occur, two of those gametes (both with 2 sets each) the zygote will have 4 sets.
If self-fertilisation occurs, the zygote will have two set(s) of chromosomes.
What is self fertilisation?Self-fertilization, also known as self-pollination, is a type of sexual reproduction in which a hermaphroditic or monoecious organism fertilizes its own gametes. This means that the male and female reproductive organs are present in the same individual, allowing for self-fertilization to occur.
In plants, self-fertilization can occur through a variety of mechanisms, including self-pollination by wind or gravity, or by the transfer of pollen from the anther to the stigma of the same flower. Self-fertilization can also occur in animals that are hermaphroditic, such as some species of snails and slugs.
Self-fertilization can have both advantages and disadvantages for the organism. It can ensure reproduction in isolated or low-density populations, but it can also limit genetic diversity and increase the risk of inbreeding depression.
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What is the function of glycoproteins?
O to detect bacteria and other foreign bodies outside of the cell
O to actively carry specific ions or molecules into the cell
O to serve as identification for the cell
O to allow specific ions or molecules to pass freely
Answer:
Glycoproteins are molecules that comprise protein and carbohydrate chains that are involved in many physiological functions including immunity. Many viruses have glycoproteins that help them enter bodily cells, but can also serve to be important therapeutic or preventative targets.
Explanation:
this is the correct answer happy
Mention some of plant organs
Answer:
Root,stem,Leaf and flower
Answer:
Plants are made up of organs, including roots, leaves, the stem and reproductive organs.
Each organ has its own functions.
Together, the organs of a plant allow it to carry out the seven processes of life.
Explanation:
I need to know FAST
The failure of homologous chromosomes to separate properly during meiosis
s called
a. Hondisjunction
C. Autosomnes
b. Crossing Over d. Karyotype
Answer:
Nondisjunction
Explanation:
Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, resulting in an abnormal chromosome number.
Natural selection, mutation, genetic drift, nonrandom mating, and gene flow are all mechanisms of ______ and can change allele frequencies in populations.
They are all mechanisms of Evolution and can change allele frequencies in populations
Natural selection, mutation, genetic drift and gene flow are all capable of causing varying changes in allele frequencies in a population. and these changes leads to the violation of Hardy-Weinberg assumptions
Hardy-Weinberg assumption states that; for a population to experience an unchanged allele frequencies, certain conditions must be met by the population such as ; absence of natural, random mating , absence of migration and absence of mutation.
Hence we can conclude that Natural selection , mutation, genetic drift and gene flow are all mechanisms of Evolution and can change allele frequencies in populations
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Many bacteria exist as free-living cells until a critical number of cells have been produced. Once these large numbers of cells are present in an environment, they may begin to form a biofilm. What characteristic must these cells possess in order for a biofilm to be initiated
Answer:
I believe they need a suspended counterpart by generation of an extracellular polymeric substance.
Explanation:
Headlands are formed through wave deposition
True or False
Answer: True
Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.
which molecule is needed for photosynthesis to occur?
Answer:
Carbon dioxide and water
Explanation:
plants prepare their food in presence of these molecules to produce sugar and oxygen which we required for survive
PLEASE HELP ME IM TIMED!
Answer:
All living things are composed of single cells or multiple cells
Explanation:
The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life. The cell theory is so established today that it forms one of the unifying principles of biology.
1. What is photosynthesis?
Photosynthesis is a process in which...
Answer: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Explanation: During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Answer: photosynthesis is the process in which plants use sunlight , water and carbon dioxide to create oxygen and energy in the form of sugar .
Explanation: hope it helps you .
I need to know the answers to what the solutions are.
Answer:
honestly same.
Explanation:
I don't know this complex science