The answer is C) The fluorescent cells can help track the movement of cells.
Explanation:
Fluorescent animals such as rabbits have been created by using the GFP gene that is the Green Fluorescent Protein, which occurs naturally in the Aequorea Victoria jellyfish. In this way, the protein was extracted from jellyfish and used in mammals, including rabbits. This particular use of genetics does not only make animals glow in the dark but also helps geneticists to study cells as it makes visible how cells move, develop or change. Thus, the correct answer is C.
Which of these lymphoid organs destroys bacteria before it can breach the intestinal wall and generates "memory" lymphocytes for long-term memory?
Answer:
Peyers patches
Explanation:
Peyers patches are group of lymphoid follicles found in the ileum of the small intestine.
This part of lymphatic system form part of immune system that help to control bacteria population in the small intestine and prevent the growth of pathogenic bacteria in the small intestines. It plays an important role in immune surveillance where it recognises pathogenic bacteria and destroy the bacteria.
It is a lymphoid organs destroys bacteria before it can breach the intestinal wall and generates "memory" lymphocytes for long-term memory because it form the part of the immune system which help to fight infection or foreign substances in the body, also by generating lymphocytes which is a white blood cells of the immune system which generate long term memory of foreign pathogens and destroying it.
3. List the molarities at which water exited the potato strips. Why did water move out of the potato strips? Were these solutions hypotonic, hypertonic, or isotonic?
Answer:
The water came out of the strips of the potatoes because a process of balance and oxygen balance called osmosis occurs.
Explanation:
The potato was subjected to a hypertonic environment and it is considered hypotonic, that is why the water seeks to go out to the outside in order to generate that it finds a balance in relation to a solvent solvent.
After the centromeres separate during mitosis, the sister chromatids, now called _______, move toward opposite poles of the spindle.
Answer:
(E) daughter chromosomes
Explanation:
I don't know how to edit my original question, so I am resubmitting it. I have attached a photo with my question. I had it attached it last question too. I'm not sure if it isn't showing up. I really need help. The instructions are to label the arrows in the slide image below with the appropriate stage of the cell cycle.
Answer:
The correct answer is -
A: Prophase (top left)
B: Cytokinesis (top middle)
C :Interphase (top right)
D :Telophase (bottom left)
E: Metaphase (bottom middle)
F: Anaphase (bottom right)
Explanation:
A. prophse - the first stage of mitosis, in this pahse the chromatin which is DNA and proteins, condenses in nucleus.
B. Cytokinesis - It is the physical sepration or dividion of cytoplasm of the parental cell.
C. Interphase - This phase have no change in cell except its size as it grows and enlarges itself.
D. Telophase - formation of a nuclear membrane around chromosome set to separate the genetic material from the cytoplasm.
E. Metaphase - visible chromosomes, removal of nucleus and chromosomes present in cytoplasm.
F. Anaphase - replicated chromosomes are separated and move towards opposite poles.
A pharmaceutical company is working on a drug to slow the spread of Ebola. Which of the following should be the company's focus?
a. Sanitizing the drinking water
b. Protecting the food supply
c. Person-to-person contact
d. Killing the insect vector
Answer:
C
Explanation:
Although Ebola isn't transferred by the air and through touch. Bodily fluids like sweat, saliva, urine, breastmilk, semen, and vomit all transmit the disease, if a person gets it in a cut or is directly introduced by it (sexual intercourse.)
The endosymbiosis or endosymbiont theory is meant to explain the origin of two specific organelles found in eukaryotic cells.
1. Name the two organelles.
2. Provide two pieces of evidence that support this theory.
Evidences that supports this theory
70s Ribosomal RNAnon membrane bound DNAHow many more phases occur during meiosis than during mitosis?
none
two
four
six
Answer:
there are 4 more phases that occur during meiosis than mitosis
Answer:
The answer is.....
Explanation:
C. Four
A plant is a
A one-celled eukaryote
B one-celled prokaryote
C multicellular eukaryote
D multicellular prokaryote
the answer should be c hope this helps:)
Answer: A plant is a multicellular eukaryote
Explanation:
Animals plants, fungi and protists are eukaryote. All multicellular organism are eukaryote. Eukaryotes may also be single-celled.
What is one way to classify mud found in an ecosystem? organism population biotic factor abiotic factor
Answer:
abiotic factor
Explanation:
Mud, while hosting many multicellular and unicellular organisms, simply refers to the combination of water and dirt, neither of which are living.
Answer:
abiotic factor
Explanation:
b. (state a differences between blood and inter cellular fluid
help asap giving branlist
Answer:
symbiotic relationship
Explanation:
describe how a cell acquires the O2 the cell needs for its metabolic processes and how a cell gets rid of the CO2 that is doesn't need and can actually be harmful to the cell?
Answer:
Cells absorb oxygen and release CO2 via the bloodstream. Please find below detailed explanation
Explanation:
Oxygen and carbondioxide (CO2) are the major gaseous substances involved in celluar respiration. Aerobic celluar respiration, which is the process by which cells obtain energy, requires oxygen to occur. The oxygen initially gets breathed in as a constituent of air, which later passes through air sacs and gets attached to hemoglobin in red blood cells. Hemoglobin transports oxygen throughout the cells of the body.
After the process of celluar respiration is done, carbondioxide (CO2) is released back into the bloodstream, which carries it to the lungs. The CO2 is released when we breathe out.
why the swimmer push the water backward
Answer:
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Explanation:
Swimmers push water backwards to propel forwards. In other words, swimmers push their hands and legs against water to move forward. This is stated in the third law of motion, for every action, there is an equal and opposite reaction.
Drag each tile to the correct box. Lucia is walking barefoot in her yard. She accidentally steps on a nail. How will her nervous system work to generate a reaction? Arrange the events chronologically. Interneurons relay the impulse to motor neurons in the spinal cord. She immediately moves her foot. The sensory neuron generates an impulse. Receptors in her toe receive stimuli. Motor neurons signal the leg muscles. ↓ ↓ ↓ ↓
Answer:
In order of steps we have
Receptors in her toe receive stimuli
The sensory neuron generates an impulse.
Interneurons relay the impulse to motor neurons in the spinal cord
Motor neurons signal the leg muscles.
She immediately moves her foot.
Hope this helps you
1. One important feature of DNA is that it can be accurately copied and inherited from one generation to the next. Imagine if DNA was NOT accurately replicated. What errors could occur and how would they affect the offspring in the next generation
Answer:
Explanation:
If DNA is not accurately replicated it can lead to mutation. Mutation is a genetic disorder that occur when a change occur and affect the genome of an organism. It can be result in frameshift mutation shifting nucleotide arrangement.
When DNA is not accurately replicated, it could lead to formation of an entirely new protein different from the original which has a different function this could lead to a form of disorder in the offspring. The effect of this disorder depends on it severity.
whats 20x20? thank you
Answer:
400 yayyyyyy
Explanation:
yvhjghkkkkhhh
Answer:400
Explanation:
20
x20
_____
00
+400
--------
400
How are vascular tissues arranged in dicot stems?
Which of the following techniques involves hybridizing a cDNA sample to a chip containing thousands of single-stranded DNA sequences, allowing one to study the expression of thousands of genes simultaneously?
A) PCR
B) Southern blot
C) FISH
D) Agarose gel electrophoresis
E) DNA microarray
Answer: Option E.
DNA micro array.
Explanation:
DNA microarray is a technique that involves hybridizing cDNA into a chip that contains thousands of single stranded DNA sequences. This technique enables one to study expression of thousands of genes at the same time.looks for extra (duplicated) or missing (deleted) chromosomal segments, sometimes called copy number variants (CNVs).
DNA microarrays are microscope slides which are printed with thousands of tiny spots in specific different positions, and each of the spots contain a known DNA sequence or gene.
primary use of DNA microarrays is transcriptional profiling.
The basic principle behind the DNA microarray is “ nucleic acid hybridization.
Would any of these genotypes affect your species’ survival in its natural habitat? Explain why or why not.
Hello. You did not enter the answer options, but I can help you by saying that a genotype would affect the survival of a species in its natural habitat if that genotype establishes a disadvantageous characteristic for that habitat.
For example: We know that the Arctic foxes have genotypes that allow them to have a white color very advantageous for their natural habitat. That's because the white color, makes the fox camouflage itself in the environment surrounded by snow and equally white. This allows the fox to go unnoticed by possible predators, that is, its genotype favors the survival of the species. On the other hand, if the arctic fox genotype established a red color in the animal, it would affect its survival, in relation to its natural habitat. This is because it had not allowed the animal to camouflage itself in the environment, leaving it exposed to predators.
Match the following terms and definitions.
1
chlorophyll-bearing organisms lacking true stems, roots, or
leaves
kelp
fucoxanthin
2. a brown pigment of the algae
any one of certain large, tough, brown seaweeds; the source
3.
of potassium, iodine, algin, and sodium carbonate
4 a red pigment found in red algae and in a few cyanobacteria
algae
phycoerythrin
Answer:
match the following from definition
first chloro peak bearing organism lekin truls rate root all leaves have frock so thin second a brown pigment of the algae or one of the container
chlorophyll-bearing organisms lacking true stems, roots, or leaves - Algae
a brown pigment of the algae - fucoxanthin
any one of certain large, tough, brown seaweeds; the source of potassium, iodine, algin, and sodium carbonate - kelp
a red pigment found in red algae and in a few cyanobacteria - phycoerythrin
Which of the following could be discovered by studying the gross anatomy of a cadaver?
The function of cells within the body
The types of cells within each organ
The function of the body's organs and systems
The structure of the body's organs and systems
Answer:
The structure of the body's organs and systems
Explanation:
In medicine, a cadaver is a dead human body dissected in order to study its anatomical structure. It is employed by medical students and other medical practitioners to study the structure of the human body.
Anatomy is a branch of science that has to do with the study of the structure of living organisms. Relating anatomy to cadaver, these dead bodies are dissected in order to view and study the structure of the different compartments of the body e.g organs, systems etc.
An example of genetic recombination is shown in the diagram. An example of genetic recombination is shown. 2 cells are connected but each have their own D N A. A structure is stretching from one cell to another. Which type of bacterial reproduction is depicted in the diagram? binary fission transduction conjugation transformation
Digram is not given in the question, so, the required diagram is attached below:
Answer:
conjugation
Explanation:
Conjugation is defined as a sexual process in which two organisms of the same species share their nuclear material or DNA with each other and form a new organism.
Binary Fission is defined as the process in which one organism divides into two daughter cells to form a new organism.
Transduction is the process in which a foreign DNA is transferred into a cell with the help of a vector.
Transformation is the process of genetic alteration in which a cell acquires genetic material from its surroundings.
Hence, the diagram is showing the process of "conjugation".
Answer:
the answer is C-conjugation
Explanation:
Each statement below describes either the bacteriophage lytic cycle, the bacteriophage lysogenic cycle, or applies to both the lytic and lysogenic cycles. Drag each statement to the correct bin.
1) Phage DNA is replicated along with the bacterial chromosome during cell
2) Phage attaches to host cell Bacterial chromosome is degraded.
3) Phage injects its DNA into the host cell. division.
4) Phage DNA is integrated into host cell Bacterial cell survives and divides.
5) Phage DNA is packaged into phage heads. chromosome
6) Phage DNA is transcribed and translated to make new phage particles.
7) Bacterial cell lyses, releasing phage particles
8) Phage chromosome circularizes
A. Lytic cycle
B. Lysogenic cycle
C. Both the lytic and lysogenic cycles
Answer:
The correct statements are sorted under respective life cycles below:
Explanation:
A. Lytic cycle:
Bacterial chromosome is degraded.
5) Phage DNA is packaged into phage heads.
6) Phage DNA is transcribed and translated to make new phage particles.
7) Bacterial cell lyses, releasing phage particles
B. Lysogenic cycle
1) Phage DNA is replicated along with the bacterial chromosome during cell division.
4) Phage DNA is integrated into host cell, and Bacterial cell survives and divides
C. Both the lytic and lysogenic cycles:
8) Phage chromosome circularizes
2) Phage attaches to host cell
3) Phage injects its DNA into the host cell.
Fill in the blanks.
1. The phylum contains most common animals you are familiar with su
as eagles, dogs, foxes, and frogs.
2. While the earth is home to many members of this phylum, earthworms are
a member of
3. The most successful phylum on earth is which contains insects,
spiders, and crustaceans.
4. An animal that molts it exoskeleton is called a(n).
5. are cells that have the potential to become any type of cell; they hav
not yet received their genetic programming.
6. All members of the animal kingdom are multicellular, heterotrophic and
7. A starfish is a bilaterian deuterostome with symmetrical adults.
8. Complete the chart by describing what kinds of organs or tissues each type
germ layer becomes:
Moi
Answer:
1. chordata
2. nematoda
3. arthropoda
4. ecdysozoan
5. stem Cells
6. eukaryotic
7. radically
Chart answer:
Endoderm = Lungs, liver, pancreas, lining of gut organs
Mesoderm = Bone, muscle, heart, circulatory system
Ectoderm - Brain, nervous system, skin
Explanation:
Answer:
1. chordata
2. nematoda
3. arthropoda
4. ecdysozoan
5. stem Cells
6. eukaryotic
7. radially
8. Endoderm… Mesoderm becomes… Ectoderm becomes…
Lungs, liver, pancreas, lining of gut organs
Bone, muscle, heart, circulatory system
Brain, nervous system, skin
Explanation:
what is the importance of autotrophic organisms for other organisms?
Answer:
the importance of autotrophic organisms with respect to energy flow and nutrient cycling in ecosystems. Primary producers usel solar or chemical energy to manufacture their own food and they use this energy through cellular respiration and growth and reproduction--energy used for NPP.
Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group? species, genus, family, order, class, phylum, kingdom, domain domain, kingdom, phylum, class, order, family, genus, species species, genus, family, class, order, phylum, kingdom, domain domain, kingdom, phylum, order, class, family, genus, species
Answer:
The correct answer is B.) domain, kingdom, phylum, class, order, family, genus, species.
Explanation:
domain, kingdom, phylum, class, order, family, genus, species make the most sense in this question
I also did the test and got it correct
:)
The series that correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group is: domain, kingdom, phylum, class, order, family, genus, species.
What is taxonomic order?Taxonomic order refers to the systematic arrangement of organisms into a hierarchy of groups based on their shared characteristics and evolutionary relationships. Taxonomy is the science of identifying, describing, and naming species, and it helps to organize the diversity of life on earth into groups that reflect their evolutionary history.
The taxonomic order starts with the broadest category, the domain, and narrows down to the most specific category, the species. Each category represents a level of classification that shares certain characteristics, and the categories are nested within each other, forming a hierarchical structure.
The eight main taxonomic levels in order, from broadest to most specific, are domain, kingdom, phylum, class, order, family, genus, and species. This hierarchical system of classification helps scientists to better understand the relationships and diversity of organisms in the natural world.
Learn more about taxonomic classification, here:
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why the tropics have more species than the poles of the Earth
Answer:
the tropics have more species because of the more humid enviroments because not many warm blooded animals can live near the poles. because of the abnormally cold temperatures, not many animals can survive unlike in tropical areas where there is a more vaste amounts of food and plant species, also shelter.
Pine trees that are too tall or too short do not do as well as pine trees that are average in height. The short trees do not get as much light as tall or average trees. The tall trees are more likely to break off in storms. Tell how this is an example of stabilizing selection. Be sure to define stabilizing selection in your answer.
Answer:
Median height is selected
Explanation:
Stabilizing selection is a particular type of natural selection where the mean of the trait in the population stabilizes on non-extreme phenotypes, thereby favoring intermediate phenotypic variants. At genetic level, stabilizing selection is shaped by selective forces that push the distribution of the trait in the population toward the average (median trait), it is a condition that may happen when a population is completely adapted to its environment. Thus, stabilizing selection acts to purge the extreme phenotypic variants via purifying selection. Stabilizing selection is considered to be one of the most important mechanisms controlling the distribution of different phenotypes after many cycles of artificial selection, it s for that reason that breeders believe that this type of natural selection is the most common in nature.
What common features do eukaryotic mRNA share? Please use one of these features to describe how you can isolate eukaryotic mRNA from the cell extract. (limit your answers in 4 lines)
Answer:
A common feature in mRNAs that allow extraction from the cell is the 5' cap region which has a Guanine nucleotide attached to the mRNA in an atypical five prime to five prime triphosphate linkage.
Explanation:
The 5' cap structure serves to protect the mRNA against damage from RNA phages and an extraction protocol an be used to isolate the mRNAs from the cells. Reagents such as Dichloromethane, sodium hydroxide and diethyl ether in aqueous solution helps separate the organic layer, a silica-gel column can be used to further isolate the mRNAs
how many lactobacillyus present in 1 lire of curd packet
A genus of gram-positive, microaerophilic, rod-shaped bacteria occurring widely in nature. Its species are also part of the many normal flora of the mouth, intestinal tract, and vagina of many mammals, including humans. Pathogenicity from this genus is rare.
hope it helps