Answer:
The basic difference between SEM and TEM is that TEM generates an image with the assistance of radiation that goes through the specimen, while the images generated by the SEM take place with the assistance of electrons getting released from the surface of the specimen.
SEM is primarily used to examine the composition of the surface, with the help of SEM one can study the microbes present in the ecological niche like in the lining of the gut and human skin. Due to its great depth, it is considered the electron microscope analog of a stereo light microscope. It helps in providing complete images of the cells present on the surface, which are not easy to get with the help of TEM. Due to its enhanced functionality, it can also be used for size determination and particle counting, and also for process control.
Which option identifies the major method scientists use to share their research findings with other scientists?
(Select all that apply)
newspaper articles
peer-reviewed journals
conference presentations
Internet videos
The option that identifies the major method scientists use to share their research findings with other scientists is peer-reviewed journals. The correct option is B.
What is peer-reviewed journals?A scholarly publication is another term for a peer-reviewed publication. The peer-review process is used to ensure academic scientific quality by subjecting an author's scholarly work, research, or ideas to the scrutiny of others who are experts in the same field.
Peer review is intended to assess the validity, quality, and, in some cases, originality of articles submitted for publication.
Its ultimate goal is to protect scientific integrity by filtering out invalid or poor articles.
Peer review research is not particularly well-developed, particularly as part of the broader issue of research integrity also it frequently produces contradictory, overlapping, or inconclusive results depending on scale and scope and it appears to suffer from biases similar to the rest of the scholarly literature.
Thus, the correct option is B.
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Heredity is
A. The passing of acquired traits from parents to offspring
B. The complete analysis of the fossil record
C. The passing of traits from parents to offspring
D.The relationship between humans and bacteria
In mutualism, both organisms participating benefit from the relationship.
True or False?
Answer:
true
Explanation:
What percent of the organisms genetic information is the same as the genetic information of the parent PLEASE HELP FASSTTTTT
Answer:
Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes, which is less than one percent of the total are slightly different between people.
Explanation:
Brendan made a diagram to compare and contrast the benefits of two types of social behavior.
The diagram shows 2 overlapping circles labeled Flocking and Herding. There is a z in Herding.
Which description belongs in the area marked "Z"?
reproduction
protection
foraging
hydrodynamic efficiency
please help this is an exam and its timeddddd
Answer:
Which description belongs in the area marked Z? Protection.
Explanation:
Have a great summer.
Herding is refer to as the act of bringing individual animals together into a group, maintaining the group, and moving the group from place to place or any combination of those. The description belongs in the area marked "Z" is foraging. Thus, the correct option is C.
What is flocking?A flocking is refer to as the large number of birds, especially those gathered together for the purpose of migration. For example, a large number of animals, especially sheep or goats kept together and migrate.
Foraging behavior includes all the methods by which an animal acquires and utilizes sources of energy and nutrients. This also includes the location and resources consumption, as well as their recapture and storage, within the context of the larger community.
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proteins are made where in the cell
Answer:
Ribosomes
Explanation:
16. Which process has most likely occurred when new traits appear in a species?
Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms. ... Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Mutations in genes produce new or altered traits, that leads to heritable differences (genetic variation) between organisms.
What is heredity?Heredity is defined as the sum of all biological processes through which particular characteristics are transmitted from parents to their offspring.
Evolution occurs when these heritable differences become more common in a population, either non randomly through natural selection or randomly through genetic drift.
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Imagine you are protesting against global warming. What would you protest sign say?
Answer:
My sign would prob say "Pretect the earth and the earth will pretect you"
Explanation:
This is not copy wright so pls don't copy mine
Community ecologists study the factors that determine the abundance of different species. The Abundance of three algae species (in mg/mL) is quantified in two different lakes before and after an unusually hot summer. The coordinates of these four samples inR3are (i) Lake A: (97,84,43)and (100,80,50) before and after summer, respectively, and (ii) Lake B: (23,59,22) and (20,63,15)before and after summer, respectively.(a) How does the magnitude of the change in algal community compare between the two lakes
Answer:
Explanation:
Given that:
The abundance of three algal species in Lake A is now represented by the vectors:
[97, 84, 43] and [100, 80, 50]
Now if we look at Lake A, the change occurring in the vector of algae species can be determined as:
a = [100 -97, 80 - 84. 50 - 43]
a = [3, -4, 7]
Thus, the magnitude of that change is:
[tex]|a| = \sqrt{(3)^2 +(-4)^2+(7)^2}[/tex]
[tex]|a| = \sqrt{9+16+49}[/tex]
[tex]|a| = \sqrt{74}[/tex]
[tex]|a| =8.6 \ mg/mL[/tex]
The abundance of three algal species in Lake B is now represented by the vectors:
[25, 59, 22] and [20, 63, 15]
At Lake B, the change occurring in the vector of algae species can be determined as:
b = [20 -23, 63 - 59. 15 - 22]
b = [-3, -4, -7]
Thus, the magnitude of that change is:
[tex]|b| = \sqrt{(-3)^2 +(4)^2+(-7)^2}[/tex]
[tex]|b| = \sqrt{9+16+49}[/tex]
[tex]|b| = \sqrt{74}[/tex]
[tex]|b| =8.6 \ mg/mL[/tex]
Hence, for both Lake A and B, the magnitude of change is the same.
146. The ATP/CP Pathway is best for which of the following activities? A. Running a marathon B. 100m sprint C. 30 minutes steady state cardio D. - Tabata workout
Answer:
100m sprint
Explanation:
The ATP/CP Pathway is best for in 100m sprint activity.
what is ATP ?Adenosine Triphosphate (ATP) is the energy carrier in every living organisms on earth which capture and store energy metabolized from food and light sources in the form of ATP.
ATP is broken down through hydrolysis during energy required by a cell, The high energy bond is broken and removal of a phosphoryl group occurred.
The energy released from this process is used to drive various cellular processes.
ATP is constantly participates in biological reactions and central to the health and growth of all life, transfer energy from one location to another,.
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Please answer only if you know this is a final 
Answer:
ecosystem
Explanation:
What is happening in these images?
Which statement is true? (1 point)
O Fossils cannot provide information about relatedness of life forms.
O Fossils can provide information about when life forms existed.
O Fossils cannot provide information about life cycles and behaviors.
O Fossils can provide information about the entire evolutionary process of life forms.
Please help! I will give you Brainly !
Answer:
1. fossils can provide information about when life forms existed
2.3
3.they can show false relationships between organisms that are not reflected in the DNA
4.Living things have adapted and changed over time for specific, discoverable reasons
5.This suggests that all of these species share a common ancestor
Explanation:
Fossils give us information about how animals and plants lived in the past.
Fossils can provide information about when life forms existed.
Fossils can provide information about the entire evolutionary process of life forms.
What are Fossils?Fossil of an animal or plant has been preserved in Earth’s crust. It is the primary source of information about the history of life on Earth.Fossils are the undecayed remains of the living organisms. These remain preserved inside the lining of sediments.Thus, we can conclude that the correct options are A and D.
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How is waste (and the accumulation of it) not only harming wildlife, but ourselves?
Receptor binding motifs such as RGD have highly selective recognition for cell adhesion. Outline a strategy for incorporating a cell adhesive recognition domain to a biomaterial. Address the problems surrounding domain quantity, type, and affinity in your discussion.
Answer:
Explanation:
RGD stands for Arginine Glycine Aspartate and is a three-amino-acid peptide. It is the most extensively utilized adhesive peptide for adhering diverse cell types to a variety of biomaterials. Integrins, fibrinogen, osteopontin, fibronectin, and bone sialoprotein, as well as collagens and laminins, all include an RGD primary binding domain. As a result, the synthetic (artificial) peptide RGD may bind to a wide range of integrin types. The artificial RGD retains its functioning through the sterilizing and processing processes of biomaterial creation because of its recognition advantage. This feature denotes the immune reactivity and pathogen transmission during xenograft.
Affinity can be modulated by the conformation of artificial RGD. The efficacy of RGD is also determined by the in vitro deposition of cells on the surface of the material sample.
The molecular processes unravel its effectiveness throughout its use as a scaffold foundation in in-vivo models. The fact that artificial RGD cannot work well in isolation is now a major aspect that defines its activity.
It has been discovered that cells release a variety of integrin-binding proteins that are more effective in activating integrin signalling than pure RGD. As a result, most biomaterials will bind and adsorb these proteins rather than RGD. As a result, a serum-free medium is employed in the majority of in vitro research.
As a result, biomaterials are supplied with RGD as well as quasi polymers such as polyethylene glycol to reduce the variance produced by native proteins. The addition of additional amino acids to RGD based on natural sequences can increase its biological activity, which can aid in the development of new tissues and the stimulation of cellular responses and signalling.
The amino terminal endpoint of the peptide, as well as the carboxyl group of the material surface, establish a covalent connection, which binds the peptide to just the surface of its biomaterial. Cell adhesion biomaterials are made from a variety of cell adhesion materials, including poly-L-lysine, mussels adhesive protein (MAP), and outer membrane (extracellular matrix) proteins.
Because MAPS are high in Dihydroxyphenylalanine and lysine, RGD is coupled with either of these to boost its cell adhesion capability. As a result, they can also aid in the attachment to damp or moist surfaces. It may also firmly adhere to glass, metals, and plastics. The addition of thiol groups to a peptide can also aid in its orientation and boost its stability.
The gap and density of this peptide sequence and structure on the biomaterial surface may be adjusted using a micro and nanotechnology (nanoscale patterning) method, which also improves ligand binding accuracy. Cellular reactions and cell activity are also under its control. Integrin receptors have been shown to be between 9 - 12 nm in size, therefore nanoscale surface patterning is crucial.
As a result, the above methods serve as a strategy for incorporating a cell adhesion recognition domain into a biomaterial while taking into account all of the technical intervention affecting its quantity, type, and affinity to the top layer for cell adhesion as a functioning tissue rather than a monolayer.
its also nice to keep a _______ in my purse
Answer:
its also nice to keep a __phone_____ in my purse
Explanation:
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant over the white allele (b). Two heterozygous guinea pigs are crossed. Draw a genetic diagram with the genotypic, phenotypic and ratio information of the P₁ and F ₁ generations of this cross.
Answer:
B b
B BB Bb
b Bb bb
Genotype:
ratio - 1:2:1
1 BB = 25%
2 Bb = 50%
1 bb = 25%
Phenotype:
ratio - 3:1
3 Brown: 75%
1 White:25%
HOpe this helps
Based on your knowledge of roots and affixes which is most likely definition of the word microscopic?
Explanation:
Microscopy is the science of investigating small objects and structures using a microscope. ... Microscopic means being invisible to the eye unless aided by a microscope.
In a grassland ecosystem, what advantages does a burrower have over an animal that does not burrow?
HELP PLSSS, IM SO CONFUSED
How is editing the genetic code different from artificial selection?
A It enables humans to influence the inheritance of DNA
B It enables humans to directly change DNA
C It can only be used on animal DNA
D It is not yet possible to edit the genetic code
Answer:
Option B
Explanation:
Artificial selection is influencing of inheritance of any trait . in this limited options are given to allow a species to mate and produce offspring
In genetic code editing directly genes are edited.
Hence, option B is correct
PLS HELP FAST NO LINKS!
If you live in a region that has hot, dry summers, and cool, wet winters, what climate might you live in?
A. arid
B.temperate
C.tropical
D.Mediterranean
Answer:
Mediterranean climate
what arebthe importance of nomenclature for advancement of science
Every recognized species on earth (at least in theory) is given a two-part scientific name. This system is called "binomial nomenclature." These names are important because they allow people throughout the world to communicate unambiguously about animal species.
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Help please! The question is in the image below
Answer: A. The cells produced sugar and oxygen during photosynthesis
Explanation: Plants today make use of this same trait, absorbing the sun's energy and air to create food (sugar) and oxygen (as a by-product)
Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included both dark, rocky lava outcrops and light, rocky, granite areas. They recorded substrate color, and coat-color frequencies for each location. Each site was separated from any of the others by at least eight kilometers. The researchers trapped a total of 275 mice. Their data are summarized below:
Collecting Site Substrate Color Number of Mice Phenotype
Light Dark
1 Dark 22 3 19
2 Light 80 74 6
3 Light 22 19 3
4 Dark 28 3 25
5 Light 58 25 33
6 Dark 65 9 56
Required:
a. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on light-colored substrates.
b. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on dark-colored substrates.
c. Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the light, rocky, granite substrate. For genotype frequencies use three decimal places and for calculations using the allele frequencies, you must round the allele frequencies to two decimal places.
Complete question
Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included both dark, rocky lava outcrops and light, rocky, granite areas. They recorded substrate color, and coat-color frequencies for each location. Each site was separated from any of the others by at least eight kilometers. The researchers trapped a total of 275 mice. Their data are summarized below (numbers have been slightly modified for the purposes of this worksheet).
Field Data Summary
Collecting Site Substrate Color Number of Mice Phenotype Light Dark
1 Dark 22 3 19
2 Light 80 74 6
3 Light 22 19 3
4 Dark 28 3 25
5 Light 58 25 33
6 Dark 65 9 56
1. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on light-colored substrates. [to 3 decimal places]
2. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on dark-colored substrates. (to 3 decimal places)
3. Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the light, rocky, granite substrate. For genotype frequencies use three decimal places and for calculations using the allele frequencies, you must round the allele frequencies to two decimal places.
4. Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the dark, rocky lava substrate. (to 3 decimals). For genotype frequencies use three decimal places and for calculations using the allele frequencies, you must round the allele frequencies to two decimal places.
5. Which fur color seems to have the greatest overall selective advantage? Use data collected from both dark-colored and light- colored substrates to support your answer.
6.What environmental change gave a selective advantage for one coat color over another?
7. In a separate study, 76 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Arizona. The other three were in New Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three New Mexico locations were slightly darker than the dark-colored mice from the Arizona population. The entire Mc1r gene was sequenced in all 76 of the mice collected. The mutations responsible for the dark fur color in the Arizona mice were absent from the three different populations of New Mexico mice. No Mc1r mutations were associated with dark fur color in the New Mexico populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases. How does this study support the concept that natural selection is not random?
8. To determine if the rock pocket mouse population is evolving, explain why it is necessary to collect fur color frequency data over a period of many years.
Answer:
1)
frequencies of light-colored mice ≅ 0.74 frequencies of dark-colored mice ≅ 0.262)
frequencies of light-colored mice ≅ 0.13 frequencies of dark-colored mice ≅ 0.873)
p² ≅ 0.02 q² ≅ 0.74 2pq ≅ 0.244)
q² = 0.13 p² = 0.4 2pq = 0.465) The dark-colored fur seems to have the greatest overall selective advantage
6) Dark lava changed the color of the substrate, from light to dark.
7) Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color.
8) To see if the mice population is evolving. If it is, there will be a change in the allelic and genotypic frequencies over the years. If it is not evolving, the frequencies will keep equal through the years.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
definition of human rights
The graph shows atmospheric carbon dioxide levels over time.
Which two observations are most useful for explaining the trends in the data? Select two answer choices.
A. Photosynthesis and cellular respiration have opposite effects on carbon dioxide levels.
B. Carbon is stored in solid form in shells, rocks, and sediments.
C. Atmospheric carbon dioxide may dissolve in ocean water.
D. The burning of fossil fuels adds carbon dioxide to the atmosphere.
E. Activities that produce or take up carbon dioxide vary with the seasons.
Answer:
the answer is A and D
Explanation:
because yes
Cellular respiration and photosynthesis are significant carbon cycle processes. The processes via which carbon is recycled in the biosphere are known as the carbon cycle. Thus, option A, D is correct.
What is the effect of carbon dioxide to the atmosphere?
Unlike cellular respiration, which releases carbon dioxide into the environment, photosynthesis eliminates carbon dioxide from the atmosphere.
When fossil fuels are burned, a greenhouse gas called carbon dioxide is massively released into the atmosphere. Greenhouse gases, which trap heat in our atmosphere, are to blame for global warming.
Therefore, Photosynthesis and cellular respiration have opposite effects on carbon dioxide levels and the burning of fossil fuels adds carbon dioxide to the atmosphere.
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Gametes contain how many copies of each chromosome?
Answer:
Explanation:
each gamate carries 22 ordinary chromosome and one sex chromosome,altogether they carry 23 chromosome each.
Our hair and nail contain
Α. Protein
B Calcium
C Chlorine
D Phosphorus.
Answer:
protein
Explanation:
our hair and nail contain option ( D) protein.nails and hairs of one body's made up of follicles and matris.
The probability of a white chicken and a black chicken having a checkered chicken is ________
and is an example of ________
A- 50% incomplete dominance
B- 100% co-dominance
C- 100% incomplete dominance
D- 50% co- dominance