Answer:
Buffer,in chemistry, solution usually containing an acid and a base, or a salt, that tends to maintain a constant hydrogen ion concentration
Explanation:
I'm pretty sure its b
2. ich part of the plant takes in carbon dioxide
form the air for Photosynthesis ?
a) root hair
b)stomato
c)Leaf veins
d)petals
ILL GIVE BRAINIEST!
Which of the following human actions could have a positive impact on local ecosystems?
Choose 1 answer:
A) Clearing forests to make way for new farms
B) Using renewable resources
C) Producing waste during technology development
D) Increasing the use of pesticides to protect crops

pls don’t answer if you don’t know, i need to pass this test.
Answer:using renewable sources
Explanation:
All the others are bad for the environment
Can someone please help me with this.. PLEASE
Which of the following traits could be passed
down (inherited) from parents?
Having blue eyes
O knowing how to ride a bicycle
O Knowing how to read
Having short fingernails
Answer:
Have blue eyes
35!!! POINTS A rectangle has sides measuring (6x + 4) units and (2x + 11) units.
Part A: What is the expression that represents the area of the rectangle? Show your work. (4 points)
Part B: What are the degree and classification of the expression obtained in Part A? (3 points)
Part C: How does Part A demonstrate the closure property for polynomials? (3 points)
Answer:
area of triangle =(6× + 4)*(2× + 11), degree is 2 and the closure property is (6+4)*(2×+11)=(×+11)*(6×+4)
HELP ME PLEASEEE I WILL GIVE BRAINLIESTttttttt
Answer:
h
Explanation:
h
2.) 19. Which of these processes is important in increasing genetic diversity in
organisms?
♡
Answer:
its either meiosis or mitosis i cannot remember which though
Explanation:
The process that is important in increasing genetic diversity in organisms is meiosis, and in this process, the genetic diversity is seen due to the genetic crossing over and the recombination.
What makes meiosis important for the organism?Meiosis is the process in which the parent cell makes the gametes that are haploid in nature; the male makes the sperm and the female makes the ovum in this process, and each of these gametes contains half of the genetic materials of the parent. Because meiosis results in genetic diversity in nature, it is important for the organism that produces offspring through sexual reproduction, and genetic diversity is seen in animals due to this process.
As a result, meiosis is an important process for increasing genetic diversity in organisms, and genetic diversity is visible during this process.
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What are the limits to natural selection?
Answer:
1.a change in environmental conditions , which can lead to such an adaption only for genetic trials already present in a populations genepool , or for traits resulting from mutations
2.heredity
3.Reproduction
variations in physical characters
Morning commuter traffic in cities contributes to ____ smog. In this type of air pollution, a mixing of ____ from certain plants, nitrogen oxides from cars, and UV radiation from the sun results in a variety of pollutants, such as ground-level ozone, which can cause coughing and breathing problems.
Answer:
photochemical
hydrocarbon
Explanation:
Morning commuter traffic in cities contributes to photochemical smog. In this type of air pollution, a mixing of hydrocarbons from certain plants, nitrogen oxides from cars, and UV radiation from the sun results in a variety of pollutants, such as ground-level ozone, which can cause coughing and breathing problems.
Photochemical smogs are caused by the photochemical reaction of hydrocarbon and nitrogen oxides in the lower atmosphere with sunlight playing a major role. The reaction of the hydrocarbon with the nitrogen oxide in the presence of light leads to the evolution of ozone gas while nitrogen oxide has the capacity to react with the sunlight on its own to produce nitrogen dioxide. This result in the formation of smog
Which parts of the water cycle the water molecules to give away heat energy?
Answer:
evaporation i think but im not sure
Explanation:
Answer:
condensation
Explanation:
Precipitation, runoff, infiltration, and ground water. Is the source of energy that drives earths water cycle. The sun. As heat energy was added to the water, it changed states from. A liquid to a gas. This gas is called water vapor. As more energy is added to the water, the water molecules move.
Which best describes the relationship between DNA, geans, and chromosomes?
Answer: Genes are segments of DNA which form tight coils called chromosomes.
The ultimate source of energy for all life on Earth is the _____________
Answer:
sunlight solar energy
Explanation:
The border between two tectonic plates lies below the state of California. The interaction of these two plates results in which of the following?
a.) Mild Climate
b.) Rich, fertile soil
c.) Frequent earthquakes
d.) Occasional wildfires
Answer:
Frequent Earthquakes
Explanation:
californication
The interaction of these two plates results in frequent earthquakes.
What is an earthquake?An earthquake is a sudden and intense shaking of the ground caused by the movement of tectonic plates in the Earth's crust. Earthquakes can result in damage to buildings, roads, and other structures, as well as cause landslides, tsunamis, and other natural disasters.
They are caused by the release of energy from tectonic plates as they shift and interact with one another. Earthquakes are measured on the Richter scale, which is used to determine their magnitude and potential for causing damage. The frequency and intensity of earthquakes can vary depending on location, with some areas experiencing more frequent or severe earthquakes than others.
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Cells used a molecule called what to store and release energy
Answer:
ATP
Explanation:
big brain pls give brainliest
I have to match these can someone help me ASAP thank you
38. Traits that increase fitness become
more prevalent over time: _____
39. Why males of a species may have traits that
seem to decrease their chances of survival: _____
40. The effect of random events,
especially in population of small size: _____
41. When one allele changes
into a different allele: _____
42. The movement of individuals
into or out of a population: _____
A. natural selection
B. sexual selection
C. genetic drift
D. gene flow
E. mutation
Answer:
38 A
39 B
40 C
41 E
42 D
Explanation:
Ngl the first few answers seem sus but I know these are correct
This table shows how the levels of classification have changed with each major scientist.
Which number belongs in the space labeled X?
A. 5
B. 7
C. 8
D. 10
Answer:
Woese increased the number of levels of Hierarchy from 7 to 10, therefore the answer is D. 10
Explanation:
Carl Woese classified the three domains of life so 10 belongs in the space labelled X.
Who was Carl Woese?Carl Richard Woese was a microbiologist and biophysicist from the United States.
Woese is best known for identifying the Archaea (a new category of life) in 1977 through the phylogenetic taxonomy of 16S ribosomal RNA, a technique he pioneered and which revolutionized microbiology.
In 1967, he also proposed the RNA world idea, though not under that name.
Woese was a professor of microbiology at the University of Illinois in Urbana–Champaign and held the Stanley O. Ikenberry Chair.
Woese classified the various living forms into three categories:
Eubacteria, Archaebacteria, and Eukaryotes.
The three-domain classification is also useful for determining the evolutionary relationships between organisms.
Hence, the correct answer is D i.e. 10
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During which phase does the cytoplasm divide and form two daughter cells?
Telophase II/Cytokinesis II
Anaphase I
Telophase I/Cytokinesis I
Anaphase II
When a cold air mass replaces a warm air mass, it's called an)
front.
A. Stationary
B. Warm
C. Occluded
D. Cold
When a cold air mass replaces a warm air mass, it's called a Cold front (Option D).
What is a Cold front?A cold front is a limit between two masses of air (one mass that is cool and the other that is warm).
This cold front may be very unstable and thus may be associated with the presence of storms.
In mid-higher latitudes, cold fronts generally advance the Equator by pushing the warm air up.
In conclusion, when a cold air mass replaces a warm air mass, it's called a Cold front (Option D).
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The Gulf of Mexico dead zone that forms each summer at the mouth of the Mississippi River is caused largely by the input of agricultural fertilizers that stimulate phytoplankton blooms, which die, and are subsequently consumed through bacterial decomposition. Decomposition consumes oxygen, leading to very low dissolved oxygen levels and subsequent death or emigration (i.e. leaving the area) of fish and other marine life. Many scientists advocate creating wetlands (as well as restoring them) as a strategy to reduce the severity and extent of the dead zone. The idea is that the plants in the wetlands will remove these nutrients from the water (during growth) and prevent their washing into the river and the Gulf of Mexico. Would the use of created wetlands be considered biotechnology
Answer:
Yes; the use of created wetlands would be considered biotechnology.
Explanation:
The created wetlands will employ the use of scientific tools and techniques, which will largely modify the plants, animals, and microorganisms in the Gulf of Mexico's dead zone. Generally, it has been established that biotechnology allows farmers to grow more food with environmentally sustainable farming techniques, which also improve soil conservation.
Answer:
Yes, the use of created wetlands would be considered biotechnology.
Explanation:
Biotechnology uses biological systems and living organisms to develop and create different products. The new wetland that they create will be made with the usage of scientific tools and techniques in order to replicate an already existing biological system. It will have very modified plants, animals and other organisms in the Gulf of Mexico's dead zone.
Name the organism that is both a secondary and tertiary consumer.
Answer:
The hawk is both a tertiary and secondary consumer.
Explanation:
Read Changes on Earth and Changes in Life. Explain how changes in Earth’s systems affect the growth of life on Earth. Use evidence from the text to support your answer.
Any changes on earth has a big effect on life in general like for instance rock reformation volcanoes eruption and global warming has made a huge impact on our environment as earthquake or volcanoes occur it has changes the formation of our earth causing ocean water to reach high tides that can even cause tsunami's that cause a lot of trouble in rare cases due to the intensity of the movement A another example is Australia wild fires in this phenomenon caused a lot of people to evacuate their home and animals losing their habitat and making our air quality worse and it affects a lot more people aspects in life and people in so many ways like now there home where burned down they might be homeless and that is my explaining on how earth systems affects the growth in our life, earth.
Which forensic scientist's work involves knowing how a body decomposes?
Forensic sociologist
Forensic psychiatrist
Digital forensics expert
Forensic entomologist
Answer:
Forensic anthropology or forensic entomologist.
Explanation:
Explain how bacteria can be genetically engineered to produce a human protein.
Answer:
Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. ... There, the recombinant bacteria use the gene to begin producing human insulin.
Explanation:
Hopefully this helped!
Genetic engineering involves modifying the genetic material of an organism, such as bacteria, to introduce new characteristics or functions. One application of genetic engineering is to use bacteria to produce human proteins, which can be used for various medical purposes such as in vaccines or as therapeutic agents.
What is the first step for the process ?Isolate the gene for the human protein: The first step in genetically engineering bacteria to produce a human protein is to identify and isolate the gene that codes for the protein. This can be done using various techniques, such as polymerase chain reaction (PCR) or DNA sequencing.
Insert the gene into a bacterial vector: Once the gene for the human protein has been isolated, it is inserted into a bacterial vector, which is a small circular piece of DNA that can replicate independently within the bacterium. The vector is usually a plasmid, which is a type of DNA that can be easily manipulated and introduced into bacterial cells.
Introduce the vector into bacteria: The next step is to introduce the vector carrying the human gene into the bacteria. This can be done using various techniques such as electroporation, heat shock, or transformation.
Allow the bacteria to produce the protein: Once the vector carrying the human gene is inside the bacterial cell, the cell can begin to produce the human protein. The bacterial machinery reads the genetic code in the gene and synthesizes the protein.
Extract and purify the protein: After the bacteria have produced the protein, it can be extracted and purified. This involves breaking open the bacterial cells to release the protein, and then using various purification techniques to isolate and purify the protein.
Test the protein for activity and safety: Finally, the purified protein is tested to ensure that it is active and safe for use in humans. This can involve various assays and tests to confirm the protein's function and purity.
In summary, genetic engineering can be used to introduce the gene for a human protein into bacteria, allowing the bacteria to produce the protein, which can then be extracted, purified, and tested for medical use. This process can be used to produce a wide variety of human proteins, including hormones, enzymes, and antibodies.
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ADD NOTE
QUESTION GUIDE 3 EXIT TEST
COLOR THEME
Q ZOOM
3. In a particular species of squirrel, red hair is dominant
over white hair. What is the expected phenotypic result
of the offspring produced by two parents, HH x Hh?
O
50% red hair, 50% white hair
100% white hair
0 0 0 0
100% red hair
75% red hair, 25% white hair
CLEAR ALL
O 10
NEXT >
REVIEW & SUBMIT
(PREVIOUS
Answer:
100% red hair.
Explanation:
All of the offspring will inherit the dominant trait for red hair, and since the dominant trait is always shown over the recessive, they will all have red hair.
Blood has codominance, if you are heterozygous, you can only show one of the dominant traits.
• True
• False
Answer: true
Explanation:
Answer:
The answer is true
Explanation:
Is e.coli similar to or different to animal cells
Answer:
I'm going to say that the e.coli is different from the animal cell.
please please help ! The results of gel electrophoresis are shown below, with four different
strands of DNA labeled.
electrode
II
Il kolle
The
Which strand of DNA is the shortest?
O A. 1
O B. 3
C. 2
O D. 4
Answer:
1
Explanation:
<3
The strand of DNA which is the shortest is 1 and is denoted as option A in this scenario.
What is DNA?This is referred to as deoxyribonucleic acid and contains the genetic components in organisms.
From the chart we can deduce that the shortest strand and most appropriate choice is 1.
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What is a classification of a sheep?
Answer:
mammal
Explanation:
Answer:
mammal
Explanation:
What are damages or changes to a
DNA sequence called?
A:Carcinogen
B:Mutation
C:Mutagen
D:Adaptation
the damage or changes to DNA is mutation
Damages or changes to a DNA sequence called is called Mutation (option B)
What is Mutation?Mutations refer to lasting alterations, in the DNA sequence of a cell. Various factors can contribute to the occurrence of mutations, such as exposure to chemicals or radiation in the environment errors during DNA replication and the aging process. Mutations may have either neutral effects.
A carcinogen is any substance of inducing cancer. On the hand mutagens are agents that can trigger mutations. Adaptation denotes a modification, in an organisms phenotype that enhances its suitability within its environment.
Base on the about information, we can infer that damages or changes to a DNA sequence called is called Mutation
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How the seedling continues to growth without cotyledon