Answer:
Living things are classified into groups that start out large and become more specific in a system of classification called taxonomy. Scientists classify living things at eight different levels: domain, kingdom, phylum, class, order, family, genus, and species.
Explanation:
Hope this helps you
There are almost 10,000 known bird species on the planet. How did they evolve into so many unique forms?
Answer:
Natural selection.
Explanation:
Imagine in the beginning there was a single species of bird. Naturally, this bird had to expand to the rest of the world, and was distanced as the continents drifted off. But this bird had to cope with various climates and environments. So the bird would gradually mutate over time. The bird in the jungles of central america would develop different colors and a shaped beak, and would better help it survive. This led to being the new normal for birds of this area. It would evolve to cover all the surviving birds in the region, until it is so drastically changed then it is a new species. There are so many different environments, each with its own challenges to overcome, so so many different bird evolve to survive them.
To create a knockout mouse, after introducing to ES cells a DNA construct in which a specific gene is mutagenized by the insertion of a drug resistance marker, the cells Multiple Choice that have incorporated the transgene by homologous recombination grow in the presence of the drug and these are injected into a host blastocyst. that lack the transgene grow in the presence of the drug and these are injected into a host blastocyst. that have deleted the transgene grow in the presence of the drug and the nuclei are injected into a host blastocyst. that lack the transgene grow in the presence of the drug and the nuclei are used for nuclear transfer.
To create a knockout mouse, after introducing to ES cells a DNA construct in which a specific gene is mutagenized by the insertion of a drug resistance marker, the cells, that have incorporated the transgene by homologous recombination grow in the presence of the drug and these are injected into a host blastocyst. The correct option is A.
What is biological marker?A biomarker is an objective measure of what is going on in a cell or organism at any given time. Biomarkers can serve as health-related early warning systems.
To create knockout mice, researchers insert artificial DNA into the chromosomes contained in the nuclei of ES cells using one of two methods.
Both methods are performed in vitro, that is, on cultured cells grown in a laboratory setting.
After introducing a DNA construct into ES cells that mutagenizes a specific gene by inserting a drug resistance marker, the cells that have incorporated the transgene via homologous recombination grow in the presence of the drug and are injected into a host blastocyst.
Thus, the correct option is A.
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Help ASAP
Which statement applies Newton's laws of motion and gravity to explain why the Moon stays in orbit around Earth?
A.
Revolution and rotation keep the Moon in orbit.
B.
Gravity and rotation keep the Moon in orbit.
C
Rotation and inertia keep the Moon in orbit.
D.
Gravity and inertia keep the Moon in orbit.
Answer:
D
Explanation:
The Moon stays in orbit around the Earth because the Earth's gravity keeps the Moon orbiting us. The gravity makes the Moon accelerate all the time, even it's speed remains constant.
PLEASE ANSWER ASAP
Which functions are involved while eating a sandwich?
Answer:
respiratory, digestive, endocrine (i think)
Today, you have learned some basic general information about bacteria that cause infections and bacteria that protect
and benefit us, living inside and on the surface of our bodies. So, here is a question for you to apply the knowledge you
gained today:
Ms. AB was traveling and caught a nasty flu on the plane. But because she had work and school she could not take any
time off to rest during her flu. 2 weeks after she contracted the flu, she no longer had the fever and sore throat, but her
nose was still stuffy, and she was suffering from sinus headaches. She went to her doctor, who diagnosed her with a
sinus infection and prescribed her a course of antibiotics. Ms. ABC took the 7 days of antibiotic therapy, but she is now
back at her doctor's office with a yeast infection and diarrhea. Explain, why Ms. ABC developed the sinus infection. Then
explain why she developed a yeast infection and diarrhea after the course of antibiotics
Answer:
Antibiotics killed the bacteria that cause infection but they can also kill beneficial bacteria . thus Ms ABC developed a yeast infection and diarrhea after course of antibiotics because antibiotics distrub natural balance of beneficial bacteria in her intestine.
Ms. ABC developed a yeast infection and diarrhea after the course of antibiotics because the exposure to antibiotics may kill beneficial bacteria which prevent other diseases to occurs in the body.
What is an Antibiotic?Antibiotics may be defined as a type of medicine that significantly inhibit the growth of microorganisms especially bacteria inside the body of living organisms. Such type of antimicrobial substance may either kill or inhibit the growth of bacteria.
It is the most prevalent kind of antibacterial agent for conflicting bacterial infections, and antibiotic medications are tremendously utilized in the treatment and prevention of such infections.
With the effect of antibiotics, beneficial bacterial species that are living in the intestine may also be killed. Due to this, Ms. ABC becomes susceptible to other types of infections like yeast and diarrhea.
Therefore, exposure to antibiotics may significantly kill beneficial bacteria which prevent other diseases to occurs in the body.
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Biomes are effected by temperature and precipitation. Please choose one other abiotic factor that would
affect species distribution and briefly describe how it would affect that distribution.
Answer:
climate / it would affect the distribution by affecting the soil making the species move to a different location
Explanation:
1. A _________
tree is used to show evolutionary relationships among organisms.
2. Binomial nomenclature names organism using their
________and________
3. What is the name of a series of questions that are used to identify an organism?
Answer:
1.ans Phylogenetic Trees
Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.
2.ans Binomial Nomenclature Rules
The entire two-part name must be written in italics (or underlined when handwritten). The genus name is always written first. The genus name must be capitalized. The specific epithet is never capitalized
3.ans Dichotomous Key
A dichotomous key is a tool created by scientists to help scientists and laypeople identify objects and organisms. Typically, a dichotomous key for identifying a particular type of object consists of a specific series of questions.
Where is the best place to live to avoid the problems caused by
climate change and why?
A gene is a small section of DNA on a chromosome.
Complete the sentences.
A gene codes for a particular sequence of...
This sequence makes a specific....
Paragraph
1
-C
B 6
А A
-D
6
Answer:
A :-):-):-)
Explanation:
Hope this helps:-)
Tectonics plates float on the ?
A.outer core
B.inner core
C.mantle
D.lithosphere
Answer:
I think mantle
Explanation:
Answer:
Mantle
Explanation:
The rocky surface floats slowly on the mantle.
Brainliest please :)
To start an action potential moving down the axon, what must happen?
Answer:
Different ions cross the neuron membrane and stimulus causes sodium channels to open I think.
Based on the graph, how are the trends in greenhouse gases between the years 1500 and 2000 likely to affect the climate on Earth?
Answer:
The atmosphere would retain more heat, raising global temperatures.
Explanation: got this correct!
Answer: The atmosphere would retain more heat, raising global temperatures.
Explanation:
Got it right on PLATO
HELP ASP!! DUE TONIGHT
What stimulates the release of the enzyme amylase into the pancreatic duct so that it can break down starches?
A. acetylcholine molecules from a nearby neuron
B. the breakdown of glucose in the chloroplast
C. the division of the cell
D. the presence of protein in the stomach
E. a decrease in the volume of the large intestine
Answer:
B
Explanation:
Took the test and got a A
:-)
The release of the enzyme amylase into the pancreatic duct so that it can break down starches is B. the breakdown of glucose in the chloroplast. Thus, option "B" is correct.
How does glucose break down in human beings?Salivary amylase starts the digestion of starch. Around 30% of total starch is digested by salivary amylase into maltose in the mouth. Pancreatic juice also has an amylase enzyme which digests the remaining starch into disaccharides in the small intestine.
Thus, option "B" is correct.
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Which of the following is accomplished by absolute dating? A. It allows us to measure an object's age in years. B. It allows us to preserve organic material. C. It allows us to identify the elements in an object. D. It allows accurate knowledge of future seismic events.
Answer:
A. it allows us to measure an object's age in years
Pleasee answer quickly I will give you brainly
Answer:
1.D "The type, states, and the amount of matter in the system"
2.D "Cube #1 to Cube #3"
3.B "Material 2"
4.A "Hot water placed in containers made of different substances"
5.A "the color of matter present."
HAVE A NICE DAY(✿◠‿◠)
(HELP IM CLUELESS) Biodiversity
542 500
450 400 350 360 250 200 150 160 60
Millions of years ago
Examine the graph that shows the changes in biodiversity over the past 500 million years. Analyze the graph at each of the yellow
triangles. Select the options below that correspond to the events occurring at the yellow triangles. Select ALL that apply.
A)
B)
C)
The change in biodiversity was most stable at the times indicated by the
yellow triangles.
There have been five mass extinction events, with the earliest occurring at
450 million years ago.
Species were evolving faster than the extinction rates, resulting in new
species forming quickly over time.
Humans were altering the environment too quickly with deforestation and
climate change, resulting in many lost species in a short period of time.
The environment was changing faster than the species were adapted at the
time points labeled by the yellow triangles, resulting in a loss of species.
D)
E)
Answer:
B) There have been five mass extinction events, with the earliest occurring at 450 million years ago.
E) The environment was changing faster than the species were adapted at the times points labeled by the yellow triangles, resulting in a loss of species.
Explanation:
an example of evolution would be
A basketball player helps maintain stable body temperature during the game by sweating. The sweat helps cool his body by evaporating. What is this an example of?
a, mitosis
b. homeostasis
c. respiration
d. digestion
What is the original biosphere, sometimes referred to as Blosphere 1?
O
a greenhouse on the Mir space station
the planet Earth
a sealed environment in Arizona
the human body
Answer:
The correct answer is - the planet Earth.
Explanation:
Biosphere 2 is the second self-sufficient biosphere that is a research center of America that is built to study, teach and research the purpose of the earth and its biosphere. It is termed biosphere 2 because the original biosphere is the primary biosphere that self-sufficient which is called biosphere 1.
Biosphere 1 is changed altered so much since it formed in various manners including the hydrosphere, atmosphere and different matter cycles.
In the science lab, a student wants to find the density of an unknown liquid. What two tools
should the student use?
A. Triple beam balance and ruler
B. graduated cylinder and beaker
C. thermometer and triple beam balance
D. triple beam balance and graduated cylinder
Please answer fast ASAP I give brainliest
identify two other physical factors and explain their effect on the organism living in the lake?
Answer:
The correct answer is - light level and temperature.
Explanation:
The structure and function of lakes are determined by various factors such as temperature, light level, wind turbulence, water flow rate, dissolved oxygen, acidity (pH), salinity, habitat size, hydrology, and water depth. Stratification and water circulations are influenced by temperature and wind turbulence.
Light level is an important abiotic factor in lake ecosystems. Light is an essential part for plants to perform photosynthesis. Light can directly affect how much life you find in a given area depends on the production of energy and food by the aquatic plants by photosynthesis.
Temperature is a similarly important factor for lakes or other aquatic organisms as it is for land animals. each organism is able to survive in specific temperature ranges and their metabolic activity also depends on the specific temperature range.
During DNA replication, if a portion of the original strand is CTGACTT, then the new strand will be
O GACTGAA
TTCAGTC
AGTCTGG
GACUGAA
Answer:
GACUGAA
Explanation:
it's the opposite letters
Cystic fibrosis is an autosomal recessive disorder where a chloride ion membrane channel protein doesn't function properly. People with cystic fibrosis suffer from chronic lung infections that make breathing very difficult. They also suffer from other issues such as an inability to produce enough digestive enzymes due to problems with pancreas cells. Suppose that Chris and Shannon are both carrier of cystic fibrosis (carriers have the allele but do not exhibit the disorder). What is Chris' genotype for the cystic fibrosis gene
Answer: Typically, the genotype in those patients consists of at least one very mild mutation uncharacteristic for CF patients. These are predominantly missense or splice variants, belonging to classes IV or V producing variable amounts of functional CFTR protein at the apical membrane.
Which is the correct order of energy change from greatest to least from chemical,physical, and nuclear
Answer:
physical, chemical, nuclear
Explanation:
PLS HELP!! ASAP DUE TONIGHT!!
The saturated fats of animals differ from the unsaturated ones of plants. Unsaturated fats have
A. higher molecular weights.
B. more metabolic processes that they participate in.
C. nitrogen atoms in their structures.
D. a higher number of double bonds between carbon atoms in their structures.
E. more functional utility in animal species, particularly in marine life forms.
Answer:
D. a higher number of double bonds between carbon atoms in their structures.
Explanation:
In which domain Nd kingdom does it belong in?
Protein Synthesis and Codons Practice
DNA → T T C A A T G G T C T A G G G
RNA →
Amino Acids →
Answer:
RNA AAGUUACCAGAUCCC
Explanation:
Remember A codes for U
C for G
G for C
T for A
The amino acids will be for every codon (every three letters)
I don’t have a codon chart to translate at the moment but I hope this helps:)
Question 5
How do increases in the carrying capacity of Earth for people affect the carrying capacity of Earth for other species?
Select one:
It increases for most species.
It decreases for all species.
It decreases for most species.
It increases for all species.
Answer:
It increases for most species.
What is the purpose of the part of the female reproductive system highlighted
below?
A. Acting as a birth canal
B. Developing a fetus
C. Transporting eggs
D. Storing eggs
The purpose of the part of the female reproductive system highlighted in the image is transporting eggs. Details about reproductive system can be found below.
What is reproductive system?The reproductive system is the system of organs within an organism which work together for the purpose of reproduction.
The reproductive system of living organisms can either be male or female.
According to this question, the structure represented in the above image is a Fallopian tube, which functions to transport eggs from the ovary to the uterus.
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