Answer:
A. In plants, a new cell wall forms to split the cell
Explanation:
In animal cells, they don't have a cell wall. During mitosis, they just split the cell membrane in order to create 2 new cells. In plant cells, they have cell walls. During mitosis, they create a new cell wall and place it in-between the 2 cells to create 2 new cells.
Compare and contrast the characteristics of the ideal tissue forming the outer surface of the body with that forming the lining of the small intestine. How are they similar and different? What tissues fulfill these needs?
The tissue that forms the outer surface of the body is a stratified squamous keratinized epithelium. The surface layer of dead cells(stratum corneum) is made to keep things out of the body, protecting it. The tissue that lines the digestive tract(e.g. intestine). Is made from 1 layer of columnar cells that facilitate the absorption of nutrients. Both tissues are epithelia.
The tissue that forms the outer surface of the body is a stratified squamous keratinized epithelium.
It should be noted that the cells on the surface of stratified squamous keratinized epithelium are very flat. The surface layer of dead cells is vital for protecting the body.
The tissue that lines the digestive tract that is, the intestine is made from a layer of columnar cells that is important for the facilitation of the absorption of nutrients.
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why was an Archea considered as a prokaryote
Answer:
Archaea is prokaryotic because it doesn't have a nucleus, nor any membrane-bound organelles. The reason why Archaea is different from Bacteria is it is more prominent, most of them are extremophiles.
because they are composed of cell which doesn't have nucleus and other some cell organelles and also considered as incomplte cell.
Craig Mellow investigated RNA interference by injecting antisense and double-stranded RNAs into C. elegans. If the antisense and double-stranded RNAs were very similar, but not identical, to C. elegans mex-3, what would be the results of their experiment
Answer:
It is required that the seed region of the processed dsRNA molecule bind to the mRNA of mex-3 in order to inhibit its translation
Explanation:
Double-stranded RNAs are small interfering non-coding RNAs (about 20 nucleotides in length) that, after processing, can bind by complementary base pairing to RNAs and thus inhibit protein translation by a mechanism referred to as 'RNA interference' (RNAi). The base pairing is not always perfect; however, the guide strands of dsRNAs can conserve their ability to inhibit the translation if the complementarity is enough good to match target RNA sequences. The critical region in the dsRNA that is required to bind target RNAs is known as seed region, and consists of 6 to 8 nucleotides in length.
How is the top layer of the ocean different than the deepest layer
A the top layer is colder and doesn’t receive sunlight
B the top layer receives sunlight and is warmer
C the top layer is warmer and doesn’t receive sunlight
D the top layer is colder and receives sunlight
Answer:
B the top layer receives sunlight and is warmer
Explanation:
Answer:
B. the top layer receives sunlight and is warmer.
Different types of protists move in different ways. Describe how one type of protists you observed moves. Be specific.
Answer:
Euglena is a protist and it moves with the aid of structures called flagella
Explanation:
Flagella are known as locomotive cells which propels from the body parts of organisms . They are made of protein structures and formed in a helical manner.
They are whip like structures and usually helps in the movement of the protists through liquid surfaces through the whip like movement of the flagella.
What do you think might happen to tissues such as the intestinal lining if a disorder blocked mitotic cell division in all cells of the body
Answer:
This is what actually happens with chemotherapy for cancer. Drugs are given which inhibit cell division. Cells such as tumour cells, which are rapidly dividing are affected most, then other dividing cells such as the epithelial lining of the gut, which nedds cell division to repair itself. The result is ulceration and bleeding.
hope this answer is correct
There are two properties of phospholipids that affect how tightly they pack together: the length of the hydrocarbon chain and the number of double bonds. The degree of packing, in turn, influences the relative mobility of these molecules in the membrane. Which of the following would yield the most highly mobile phospholipid (listed as number of carbons and number of double bonds, respectively)?
(a) 24 carbons with 1 double bond
(b) 15 carbons with 2 double bonds
(c) 20 carbons with 2 double bonds
(d) 16 carbons with no double bonds
Answer:
Explanation:It’s d
Which best describes a person's carbon footprint?
O A. The amount of carbon dioxide he or she releases into the
atmosphere
B. The amount of carbon consumed by a person
C. The amount of carbon he or she absorbs from the environment
O D. The amount of nitrogen he or she fixes into carbon
A. The amount of carbon dioxide a person releases into the atmosphere
Answer:
Pretty sure its A if not sorry
Explanation:
Probiotics help to reinforce the integrity of the gastrointestinal tract by forming a network of proteins that blocks the movement of pathogens through its lining. If the integrity of the GI tract lining is compromised, pathogens can move more easily into the blood. This condition of compromised integrity of the GI tract is called
Answer:
The correct answer is "leaky gut".
Explanation:
"Leaky gut", also known as "intestinal permeability", is a term used to describe a condition of the gut's mucosal lining at which it becomes permeable as a result of suffering from damage. This is a serious condition since undigested food particles, toxic waste products or pathogens can move more easily into the blood. This contributes to suffer from different diseases, which can become chronic if the condition gets unattended.
Describe an additional hypothetical situation that illustrates the "use it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why more bone is present under these circumstances. Also, describe an additional hypothetical situation that illustrates the "lose it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why less bone is present under these circumstances.
which type of research study compares disease rates among population groups?
Answer:
Epidemiological
Explanation:
Epidemiology compares disease rates among population groups, and attempts to identify related conditions or behaviors.
Answer: Epidemiological studies
Hormones are chemical molecules produced by endocrine glands. One such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. Which two statements describe the probable reason for the function of the hormone? A)The cells in the heart have specific receptors that allow for the intake of hormones. B) The heart and the endocrine glands have the exact same types of cells. C)All cells make the same types of hormones. D)Thyroid hormones show their effect on the heart by means of specialized cells. E) Thyroid cells and cardiac cells have different DNA.
Answer:
i think option d is correct answer because it helps in the management of heart beat , blood pressure etc.
g What term refers to probes that will hybridize only with a complementary sequence and not with other sequences that may vary by as little as one nucleotide
Answer: Here are the options which are not given.
A) generation-specific probes
B) short, variable repeats
C) VNTRs
D) microsatellites
E) allele-specific oligonucleotides (ASOs)
E) allele-specific oligonucleotides (ASOs)
The correct Option Is E.
E) allele-specific oligonucleotides (ASOs)
Explanation:
Allele-specific oligonucleotides is a small synthetic DNA that proves which will hybridize with a only a complementary sequence of DNA and not with other sequence that may be different even with a nucleotides.
The DNA probe must be single stranded so that the desired Gene segment will be located.
The probe attach to the segment of DNA which has nucleotides complementary to its own.
Allele-specific oligonucleotide hybridization, or dot blotting, is a technique use to test known mutations.
A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that
the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?
Height is affected by multiple pairs of genes on different chromosomes.
The alleles for tall height and short height are codominant.
The allele for being tall is dominant to the allele for shorter heights.
There are three alleles for height that demonstrate incomplete dominance.
Answer:
Height is affected by multiple pairs of genes on different chromosomes.
Explanation:
The height is a quantitative trait, it is a phenotypic feature that presents a continuous range of variation in the population. The cumulative effects of many genes and the environment produce a normal distribution bell-shaped curve when they are drawn, this being a characteristic of quantitative genetic traits. Examples of quantitative traits include, among others, height, metabolic rate and weight.
The student could use their graph as evidence to support the argument that "The alleles for tall stature and short stature are codominant."
What is a Codominant gene?Codominant: Autosomal codominant inheritance is the condition in which the heterozygote has the characteristics determined by both alleles (dominant and recessive).
What is allele?Allele genes are those that occupy the same locus on homlogous chromosomes and are involved in determining the same character.
With this information, we can conclude that the genes alleles of the students in this class are codominant.
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Eggs and sperm are examples of _____. zygotes somatic cells diploid cells gametes
Answer:
gametes
Explanation:
gradpoint
Based on what you know of bone features, what do you think this canal is for? Why would we need a hollow space in this area of this bone?
Answer:
The mandibular canal, also referred to as the Inferior Alveolar Canal (IAC), sits within the mandible. It serves the purpose of housing the inferior alveolar nerve which is responsible for supplying sensation to the lower teeth.
This canal also houses the inferior alveolar vein - a dental vein whose function is to (with the assistance of the posterior alveolar artery) drain blood from the lower teeth and jaw.
A picture of the mandibular canal is attached.
Cheers!
Construct at least two possible hypotheses for the student’s experiment
Answer:
OFFICIAL SAMPLE ANSWER (Do not copy verbatim):
Hypothesis 1: The natural nutrients in compost will cause the tomato plants to grow at a faster rate than they grow when given artificial fertilizer.
Hypothesis 2: The artificial fertilizer is formulated specifically for tomato plants, so it will cause the plants to grow at a faster rate than they grow when given compost.
Explanation:
If questioned for situation below.....
"Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops.
A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer.
"
1. compost pits and manure use, bio gas can be produced
2. using natural compost replenishes the soil fertility in the long run unlike the chemical fertilizers are two possible hypotheses for the student’s experiment
What are the basics of experiment ?The basics of experiment is to test the hypothesis what we set previously and it is a foundation of the scientific method, types of experiments include controlled experiments, field experiments, and natural experiments.
The key steps taken in scientific method are observations, ask a question, making of hypothesis, design and conduct experiment, result, accept or reject or repeat the hypothesis from result.
The most important parameter taken in an experimental set up is variable which can be dependent, independent and controlled variables where the independent variable is something which can not influenced by other factor.
A dependent variable can be changed by the influence of independent variable and Control variable can be used to check bias of experiment.
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 What is the most likely explanation for how speciation occurs?
A. It occurs by more than one method.
B. It occurs by gradual changes.
C. It occurs only by geographic isolation.
D. It occurs only by natural selection.
Answer:
The answer is (C) geographical isolation
Explanation:
Speciation is most likely to occur when populations become geographically isolated from one another, and come to inhabit environments that differ significantly from one another.
List the functions of proteins
Answer:
Growth and Maintenance.
Causes Biochemical Reactions.
Acts as a Messenger.
Provides Structure.
Maintains Proper pH.
Balances Fluids.
Bolsters Immune Health.
Transports and Stores Nutrients.
1.
behavior is inherited and
2. When a deer hears a sound in the forest, such a
then bolts through the bushes. This is an examp
3. Mating rituals or displays can be very complex
4. When animals fight and one wins and one subm
This means that one animal (the winn
behavior is used to intimidate other an
baring teeth or growling.
Answer:
Behavior is inherited in many animals which helps them to survive.
Explanation:
When animals fight with one another and one wins. This means that one animal (the winner) behavior is used to intimidate other. Two deer fight each other in order to show dominance over each other and to impress the female deer. The winner deer will be the leader and also mate with the females of the group. This is a type of behavior which is inherited in animals through genetics is called instincts.
Jessica weighs 125 pounds. She rode a bike at 17mph for 25 minutes. What is the calorie cost of this activity?
a. 185 calories
b. 178 calories
c. 180 calories
d. 190 calories
e. 188 calories
Answer:
b. 178 calories
ok so 17mph is 0.57 weight/min
so what were going to do is multiply 125 times 0.57 which is 7.125
then multiple that answer by 25 mintues: 7.125 x 25 = 178.12...etc
now if we round this up it stays as 178!
What energy carrier molecules are produced by glycolysis
Answer:
"Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy"
Explanation:
Glycolysis | Boundless Biology - Lumen Learning
The Investigation
It’s your first day shadowing a detective, and already it’s been interesting…if you can call the murder of a young woman interesting. You’ve been trying to detach yourself by reading the file, but you have interviews later this morning and you’re nervous. Going back to the file, you jot down some notes on what you know so far.
Melissa was a 35-year-old nurse-midwife with over ten years’ experience delivering babies both in hospitals, as well as in homes when risk for complications were low. She was healthy; her only medical condition was an allergy to bee stings. The body was discovered by her boyfriend when he came over for a planned dinner. The dinner – spaghetti – was laid out, but no cooking had begun. There was also a plate of cupcakes, with a bite out of only one of them. The boyfriend said Meleea had not mentioned feeling unwell when they spoke earlier in the day. She was, however, tired, and understandably upset about a long birth she had assisted with where a mother had died in childbirth.
The medical examiner did not have results yet, so you sketch out some questions you have for the interviewees.
1. Who would you interview, and what would you ask?
2. Do you have any hypotheses about what happened to Meleea? Write at least one or two possibilities.
1. I would interview the boyfriend and family members of the mother who died in childbirth. I would ask where they were at time time of death and if they have an alibi.
2. There could have been something put in the cupcakes, since only one bite was taken from a single one.
Which shows the most direct path that carbon can take through the carbon cycle? plant ® atmosphere ® animal animal ® plant ® atmosphere plant ® animal ® atmosphere atmosphere ® animal ® fossil fuel
The most direct path that carbon can take through the carbon cycle is: plant ---> atmosphere ---> animal.
What is the carbon cycle?The carbon cycle refers to the various processes by which carbon flows through the ecosystem.
The carbon cycle involves processes which remove carbon and other processes which release carbon into the atmosphere.
The most direct path that carbon can take through the carbon cycle is plant ---> atmosphere ---> animal.
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Answer:
The answer is C) plant ® animal ® atmosphere
Explanation:
Which of the following best describes how ACh changes the ion permeability of the sarcolemma?
A) ACh activates acetylcholinesterase.
B) ACh entry into the axon terminal causes neurotransmitter release.
C) ACh binds to receptors in the junctional folds.
D) ACh entry into the muscle fiber causes Ca2+ to be released by the sarcoplasmic reticulum.
Answer:
C) ACh binds to receptors in the junctional folds.
Explanation:
The statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).
The sarcolemma is the plasma membrane of the muscle cells.
Moreover, acetylcholine (ACh) is a neurotransmitter that is released by motor neurons during muscle contraction.
After release, ACh binds to specific (nicotinic) receptors in the sarcolemma at the neuromuscular junctions (i.e., junctional folds).
These receptors are also called chemical-gated and/or ligand-gated channels because they are known to modify the ion permeability of the sarcolemma.
In conclusion, the statement 'ACh binds to receptors in the junctional folds' best describes how ACh changes the ion permeability of the sarcolemma (Option C).
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What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2? a = 5, b = 4, c = 2 a = 5, b = –4, c = –2 a = –4, b = 5, c = –2 a = 4, b = –5, c = –2
Hey there! :)
Answer:
The 3rd choice. a = -4, b = 5, c = -2.
Explanation:
Rearrange the quadratic equation given into the form 0 = ax² + bx + c:
0 = 5x - 4x² - 2 --> 0 = -4x² + 5x - 2
The corresponding coefficients for the a, b and c values are:
a = -4
b = 5
c = -2.
The given quadratic equation must be first rearranged in the form ax2- bx-c. From this, we can find the values of a= -4, b= 5, and c= -2
How can a quadratic equation be defined?Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared. It is also called quadratic equations. The general form of the quadratic equation is ax² + bx + c = 0.
Quadratic equations are commonly used in situations where two things are multiplied together and they both depend on the same variable. For example, while working with the area, if both dimensions are represented in terms of the same variable, you use a quadratic equation.
Throwing a ball, shooting a cannon, diving from a platform, and hitting a golf ball are all examples of situations that can be modeled by quadratic functions.
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. Some people have developed allergies to animal insulin. Explain why the immune system would be able to distinguish animal insulin from human insulin
Answer: Difference between animal and human insulin and/or not being properly purified.
Explanation:
Insulin is a hormone that regulates the metabolism of secreted by the β-islet of Langerhans cells of the pancreas. It that allows blood sugar, known as glucose, to pass into cells. Glucose comes from the food and drinks and it is the body's main source of energy. So, insulin plays a key role in maintaining proper blood glucose levels.
Animal insulin is produced by the pancreas of animals, usually cows and pigs. Then, the insulin is purified to reduce the chance of the insulin user developing a reaction to the insulin.
Each organism has its own genetical identity and any foreign particle is treated as an antigen. And, there is small chemical difference between insulin produced in animals and insulin produced in humans. That difference, caused by a different sequence of peptides, can be recognized by the immune system as something foreign and as such can be a threat to the body. And that would trigger an immune response. Also, the response can be because it hasn't been properly purified and contains other compounds or proteins that are also foreign.
Why are the seminal vesicles important for human reproduction
Answer:
Seminal vesicle secretion is important for semen coagulation and may promote sperm motility, increase stability of sperm chromatin, and suppress the immune activity in the female reproductive tract.
Explanation:
Copy and paste the paragraph into Google, and you will get an article on the topic.
A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland?
Answer:
Explanation:
Based on this information it can be said that this formation between the islands and the mainlands will most likely cause an increase in gene flow between the bird populations. Since the islands and the mainland are now connected birds from both these two different habitats will begin mating and producing progeny, thus causing gene flow to increase between these species.
Answer:
An increase in gene flow between the birds population.
Explanation:
A microbiologist would like to use a noncompetent genus of streptococcal bacteria, Enterococcus faecalis, as a cloning host to express genes from Streptococcus pneumoniae, which is naturally competent. Is this possible? Group of answer choices
Answer:
Yes, with the assistance of electroporation the bacteria Enterococcus can be made competent, and afterward, the Streptococcus bacterial genes can be presented within the Enterococcus with the help of a cloning vector.
The electropermeabilization or electroporation refers to a microbiology technique in which the permeability of the cell membrane is enhanced with the application of the electric field. This permits drugs, chemicals, or DNA to get presented within the cell.
The procedure of electroporation is generally used in the field of microbiology to transform yeast, bacteria, or protoplasts of plants by presenting novel coding DNA.