Answer:
Nucleus
Explanation:
Nucleus controls cells' activities by controlling the synthesis of proteins.
Golgi apparatus involves in the secretion and intracellular transport of a cell.
Ribosome helps the synthesis of proteins only.
Mitochondrion involves in respiration, generating energy for the cell.
Answer:
Explanation:
nucleus:)
Jenna began making a model to show the processes which resulted in the formation of oceans. Art shows three boxes connected with arrows. The label on the first box is 'Water fills the basins', second box is 'Segments of Earth's crust move',and the third box is labeled with a question mark. Which of the following would be the next step in the process? Crust is broken down Earth’s crust moves Earth’s plates meet Sea floor spreading
Answer:
Crust is broken down
Explanation:
In the formation os oceans, at first water fills the basins, in the second step segments of Earth's crust move and in the third step crust is broken down.
In the oceans when water fills the basin, it allows the Earth's crust to move which makes it folded or break apart. When the crust is broken down along with deep cracks, it is filled with water from streams and rainfall flowing in the ocean.
Hence, the correct option is "Crust is broken down".
Answer:
Earth's plates meet
Explanation: After Earth's crust formed, and water filled the basins, giant segments of the crust began to move. These segments are known as lithospheric plates or tectonic plates. The plates float on Earth's molten interior like rafts of rock. The plates move around, driven by convection currents from the Earth's mantle. The plates move over and under and past each other. Where the plates meet, Earth's crust is constantly formed and re-formed.
Feedback inhibition prevents cells from:____________.
a. the harmful effects of enzyme activation by covalent modification of unneeded enzymes.
b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.
c. irreversibly inhibiting critical enzymes.
d. destroying enzymes by proteolytic cleavage when they are needed in biosynthetic pathways.
e. accumulating unnecessary proteins.
Answer:
b. making products that are not needed by inhibiting the activity of enzymes in biosynthetic pathways allosterically.
Explanation:
The feedback inhibition is a method of cellular control were the active cellular enzymes is inhabited and it allows the cells to regulate how enzymes are needed to produce at the end. This feedback acts as a first enzyme amino acid production and is usually complete through the allosteric site. It changes the shapes and behavior of the active cell.Which hypothesis was Louis Pasteur trying to confirm through his work?
A. All organisms are made up of cells.
B. New cells come from preexisting cells.
C. Animal cells are different from plant cells.
D. Most plants are not unicellular organisms.
During an intramuscular injection procedure, the medication label should be checked:
Answer:
The medication label should be checked by comparing it with the MAR (Medication Administration Records or therapeutic documentation care plan TDCP).That is the label printed on the medication should be compare with the Medication Administrations records
Explanation:
Ideally this should be done three times, when it is removed from the medication cart,and before and after it was removed form the medication cart.
Besides,the date of expiration should be checked,and the regulations concerning administrations of multi-does vial should be taken into considerations.
The medications mode of storage should be taken into confederation,proper storage must be ensured.
Generally the application of medication through injection into the muscles for faster absorption into the blood streams for fast distribution is called IM. This is aided by the rich blood supply to the muscles.Therefore it is a faster mode of blood application than the subcutaneous routes.
Hemophilia is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Who has hemophilia in the pedigree that is shown? A)John and Ann B)Fred and Luke C)John, Charles, Jack, and Irene D)Ann and Marie
Answer:
B)Fred and Luke
Explanation:
On the pedigree, it is obvious that they suffer from hemophilia because they appear colored, but males(XY) need only one allele for hemophilia to be sufferers.
In hemophilia, it is x linked recessive disorder in males having X and Y chromosomes, so he need only one x chromosome in recessive manner, hence in pedigree analysis Fred and luke having has hemophilia, hence option b is correct
What is hemophilia?Hemophilia is a hereditary bleeding disorder in which the blood lacks to clot properly. This can occur for both spontaneous and post-injury or operative bleeding.
On the pedigree, it is observed that they suffer from hemophilia because it is x linked recessive disorder, they appear colored, but males (XY) need only one allele for hemophilia to be sufferers.
Blood contains several proteins known as coagulation factors that can assist in the prevention of bleeding. Although its rare, acquired hemophilia is a serious illness.
Therefore Fred and luke have hemophilia because males having chromosome XY, need only one allele for the disease, hence opton b is correct.
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Which activity does a local health department perform when providing health and environmental services?
Answer:
Explanation:
Local health department links up patient with adequate health care needed especially area where good health facilities is reduces and cannot be access, they prevent spread of disease by given immunizations.
They also help in avoiding spread of diseases and infections by working with other health agencies to create awareness.
In the environment, some of them ensure access to to good and clean water, they develop plans when emergency cases arises and during disaster.
Answer:
C
Explanation:
The local health departments make sure that the community's health is thoroughly assessed, thus, it is their role to oversee the day-to-day health issues in a country. For example, if there's an infectious disease, they prevent its spread by mandating some policies or protocols that people should follow. It is also their duty to respond to emergency situations that affect the health of the local people.
In order for translation to occur: Please choose the correct answer from the following choices, and then select the submit answer button. transcription must be occurring simultaneously. there must be large numbers of free amino acids present in the cytoplasm. the DNA must produce large numbers of free amino acids. replication must be occurring simultaneously. the nuclear membrane must first dissolve
Answer:
there must be large numbers of free amino acids present in the cytoplasm
Explanation:
In order for translation to occur, there must be a large number of free amino acids in the cytoplasm.
These free amino acids are usually carried by the transfer RNA which also carries the corresponding mRNA codon.
During translation, as the codons in the mRNA match their complements in the tRNA, the amino acid being carried by the tRNA is released and a peptide bond is formed between subsequent amino acids until the required polypeptide bond is formed.
Translation and transcription only occur simultaneously in prokaryotic cells where there is no barrier between the cell's genetic materials and the cytoplasm, unlike in eukaryotic cells where the genetic materials are housed in the membrane-bound nucleus.
Which of the following membrane-enclosed organelles contains several oxidases that are involved in oxidation of fatty acids and amino acids during normal metabolism and in detoxification of chemicals like alcohol in the liver?
a) peroxisomes
b) mitochondria
c) proteasome
d) ribosomes
e) lysosomes
Answer: The correct answer is a) Peroxisomes.
Explanation: This kind of membrane enclosed organelles has a mainly function that is the oxidation, this source manages to break fatty acids and during normal metabolism, they also has many enzimes like d-aminoacid oxidases, is another of their functions. Further, the catalase enzime (another enzime which is inside peroxisomes) manages the detoxification of chemicals like alcohol from alcoholic drinks (catalases transform the H2O2, which is toxic, into H2O to detoxificate the liver).
explain what is meant by emergent properties when explaining how a beaker full of chemicals is different than an animal made of that same mix of chemicals
Answer:
In biology, an emergent property is a property possessed by a collective and complex system of constituents, which is lacking in the individual component of the system
Emergent properties are therefore, an important aspect of biological system, for example, a beaker containing graphite (carbon) and ammonium ions in solution contains the same chemicals found in the human brain used to control movement and store memory whereas the chemicals in the beaker are idle.
Explanation:
omosexuality is seen only in humans. has been documented for only a few hundred years in only a few societies. likely reflects the input of a number of genes and environmental factors. is inherited from a mutation on the X chromosome. is only the result of environmental influences.
Answer:
Homosexuality likely reflects the input of a number of genes and environmental factors
Explanation:
Sexual orientation can be defined as the attraction that experiments an individual self-identified with a particular gender (either male or female) to other persons according to their sex, this orientation may be classified into three categories: heterosexual (attraction for people of opposite sex), homosexual (same-sex) and bisexual (either sex). In the last years, the mechanisms involved in sexual orientation have been subject to intense research. In this regard, the main part of the scientific community agrees that sexual orientation is the result of the complex interaction between genetic and environmental factors. This hypothesis is supported by the fact that genes whose expression is associated with particular human behaviors, including sexual orientation, have been recently identified and mapped. Moreover, it has been shown that environmental factors such as, for example, hormone exposure before birth (i.e., during fetal programming) may also determine sexual orientation.
which of these is the most ethical reason for using a simulation rather than an experiment with live animals
Answer these:
1) What is bone marrow?
2) Where is it located?
3) Can one live without a bone marrow?
4) What is bone marrow made of?
Kratika Please hurry and answer, you have always helped me.
Answer:
These are the answers:
1) Bone marrow is a spongy tissue inside some of our bones.
2) It is located at the ribs, bones of the pelvis and vertebrae,e.t.c.
3) Yes!, A person can live without a bone marrow only if they receive regular blood transfusions.
4) Bone marrow is made up of large bones.
Explanation:
A bone marrow is where new blood cells are produced.
Hope it helps.
Which definition best describes polygenic traits? A. traits that are carried on linked genes B. traits that affect several features C. traits that are controlled by multiple genes D. traits that express both alleles of a gene pair
Answer:
The answer is C.Traits that are controlled by multiple genes.
Explanation:
C. traits that are controlled by multiple genes
I JUST TOOK THE TEST AND GOT IT CORRECT!
What affect will adding sugar have on the viscosity of water? As a real-world application, how can this experiment be beneficial? What is the purpose of the lab?
Answer:
If you add more sugar to water than the viscosity will be more intense, The independent variable is the amount of sugar you add to the water, The dependent variable is the viscosity of water. The control variables are the source of water, the temperature of the water, and the amount of water.
Hope this helps, have a nice day!
Marissa is testing a hypothesis through experimentation. She believes that immersing ocean coral in carbonic acid will slow the coral’s growth. Which of these actions will prevent Marissa from introducing confounding variables into her experiment?
Answer:
The answer choices to this question are:
A) She releases cement particles into a random number of the coral samples.
B) She uses three different types of coral to establish her dependent variables.
C) She treats the coral samples identically with varying levels of carbonic acid.
D) She obtains her coral samples from coral reefs surrounding different continents.
Best Answer is:
A) She releases cement particles into a random number of the coral samples.
Theory:
It has been researched that ocean acidification caused by carbon dioxide emissions causes a decrement in the coral reef growth and this will keep slowing down unless steep and rapid reductions in greenhouse gas emissions are made. And the Coral reefs offered economic opportunities would advantage the surrounding communities from fishing and tourism.
i did this question so thats why i know the answer choices
hope this helpsss
Answer: C. She treats the coral samples identically with varying levels of carbonic acid.
Explanation: I just took the test and this is correct
Nancy Scheper-Hughes and Margaret Lock observed students at a teaching hospital trying to diagnose a woman's debilitating headaches. Students were impatient with the woman's description of her life circumstances, including an abusive husband and an ailing mother-in-law, but her description might BEST be termed as which of the following?
a. an illness narrative
b. a biomedical diagnosis
c. the human microbiome
d. alternative medicine
Answer:
The answer is option A.
Explanation:
An illness narrative is defined as "patients’ stories about their experiences of illness" on Oxford Medicine. According to the information given in the question, she is telling her experience in an autobiographical fashion with the environmental details, description and other things that may affect her situation, so her description can be best categorized as an illness narrative. The answer is option A.
I hope this answer helps.
Which of the following is a primary function of carbohydrates?
Choose ONE answer:
A. Acting as a long-term energy source.
B. Speeding up chemical reactions.
C. Storing genetic information.
D. Providing short-term energy storage.
Answer: For me providing short - term energy storage is C so whatever providing short - term energy storage is on yours that's the correct answer. :D have a nice day.
Explanation: Carbohydrates are the main energy source of cells.
They provide a quick energy supply for all types of cellular activities.
The correct answer is
Providing short-term energy storage
The correct answer is option D. Providing short-term energy storage.
What Do Carbohydrates Do to Your Body?Carbohydrates are the main source of energy for your body: they help fuel your brain, kidneys, myocardium, and central nervous system. For example, fiber is a carbohydrate that aids digestion gives you a feeling of fullness, and lowers blood cholesterol levels.
Carbohydrate Function
Energy supply and blood sugar regulation.Gentle use of protein to generate energy.Degradation of fatty acids and prevention of ketosis.Biological recognition process.flavors and sweeteners.fiber.Learn more about carbohydrates here: https://brainly.com/question/336775
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Which type of mutation occurs only in gametes? pick one only THANK YOU :D
A.germline mutation
B.somatic mutation
C.point mutation
D.frameshift mutation
To celebrate her recent weight loss, Lisa’s friends decide to take her out for a healthy dinner. Lisa doesn’t drink alcohol because she knows the empty calories will contribute to weight gain. One girlfriend at the dinner has four margaritas and an extra shot of tequila before the food arrives. Is this friend’s behavior considered binge drinking?
Answer:
Yes
Explanation:
In the scenario being described in the question it can be said that Yes, the friend's behavior would be considered binge drinking. This is due to the fact that consuming four drinks or more for women is considered binge drinking, and she had 5. Binge Drinking is defined as when a pattern of drinking that brings a person's blood alcohol concentration (BAC) to 0.08 g/dl or above, which for men is 5 or more drinks, and for women it is 4 or more drinks in less than 2 hours.
What event gave Darwin the idea for his theory of Evolution?
Answer:the idea that species change over time, give rise to new species, and share a common ancestor.
Explanation:
to better cope with environment
Natural selection gave Darwin the idea for theory of evolution where organisms produce more offspring which able to survive in their environment.
What is natural selection?Natural selection is an evolutionary mechanism. Lifeforms that are better adapted to their surroundings are more likely to flourish and pass on the genes that helped them thrive. Species alter and deviates as a result of this process.
Natural selection, Darwin proposed, is a mechanism for evolution in which heritable traits that help support life reproduce and survive become more prevalent in a population over time.
Darwin and a scholarly colleague, Alfred Russel Wallace, posited that evolution occurs as a result of a phenomenon known as natural selection. According to natural selection theory, organisms generate more offspring than can survive in their environment.
Thus, the answer is natural selection.
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What is hello in Estonian?
Answer:
Tere
Explanation:
e
Answer:
I think it's either Tere or Halloo
8. What type of chemical bond forms between positive and negative ions?
metallic
jonic
covalent
Answer:
and: option B) Ionic bond
As células são os componentes fundamentais de todos os seres vivos, não sendo encontradas apenas nos vírus. Algumas pessoas costumam dizer que as células são formadas por membrana plasmática, citoplasma e núcleo. Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de:
Answer:
Entretanto, nem todas as células possuem núcleo organizado, recebendo o nome de: células eucarióticas
Explanation:
As células eucarióticas são caracterizadas por possuir um núcleo definido, localizado no citoplasma. A diferença que tem com as células procarióticas é que o núcleo nelas está em uma região do citoplasma chamada nucleoide.
Além disso, as células eucarióticas têm um nível mais alto de complexidade em relação à sua informação genética, podendo realizar dois processos para replicar seu DNA: mitose e meiose
What did Chargaff discover while studying bases in the DNA of organisms?
Answer: The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.
Explanation:
Confirm if all of these are correct for 10 points + brainliest. If they are incorrect, please correct it.
Answer:
Correct
I am not sure.
Explanation:
Hope it helps you...
In this assignment, you will prepare a presentation about an endangered species found in your state. You will conduct research on the Internet to learn about the species and why it is endangered. With this knowledge, you will describe some possible solutions to increase the survival rate of the species.
Answer:
Were it not for the Act, scientists have estimated, at least 227 species would have ... just ripped apart the Endangered Species Act. We need your help fighting back. ... of all species listed in the northeastern United States, 93 percent are stable or ... of acres of critical habitat, which is crucial to species' survival and recovery.
Individuals in the __________ adulthood stage tend to feel more responsible, more capable, and more financially independent than adolescents, yet they feel less capable than adults. A. Older B. Middle C. Young D. Emerging
Answer:
D.) Emerging
Explanation:
Answer:
D
Explanation:
Areas on the moon called maria Select one: a. are seas of water. b. consist of basaltic lava. c. formed a million years ago. Clear my choice
Areas on the moon called maria consists of basaltic lava. Option B is correct.
The areas on the moon called maria are not actually seas of water, as option a suggests. Instead, they are large, dark, flat areas on the moon's surface. These areas were formed by ancient volcanic activity.
Maria are made up of basaltic lava, which is a type of lava that is low in viscosity and can flow easily. When volcanic eruptions occurred on the moon in the past, this lava flowed out onto the surface and covered large areas, creating the maria.
These volcanic eruptions and the formation of the maria took place billions of years ago, not just a million years ago as option c suggests. They are remnants of the moon's early history when volcanic activity was more prevalent.
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(Q030) All members of the nuclear receptor family Group of answer choices are cell-surface receptors. do not undergo conformational changes. are found only in the cytoplasm. interact with signal molecules that diffuse through the plasma membrane.
Answer:
interact with signal molecules that diffuse through the plasma membrane.
Explanation:
Nuclear receptors are responsible for recognizing steroids and other molecules. They interact with signal molecules that diffuse through the plasma membrane.
What are signal molecules?Signal molecules are responsible for transmission of information. Different signaling molecules are of different size, shapes, confirmations, etc.
Its example include acetylcholine, dopamine, epinephrine, glycine, etc.
These molecules interacts with nuclear receptors and helps in signal transmission to and fro from the cell.
Thus, option d is correct.
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In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. You have two
rattlesnakes, one rattlesnake has a mutation but can still produce venom. You compare his DNA to a normal rattlesnake. What type of
mutation has occurred?
Normal: AATCGCTACGCACGTCAG
Mutated: TATCGCTACGCACGTCAG
A. Deletion Mutation
B. Nonsense mutation
C. Silent Mutation
D. Missense mutation