Answer:
Add biuret solution to test for protein
Explanation:
Add biuret solution to the test tube with the solution in it and shake gently. If turns around pink or purple, protein is contained.
Safety precautions would be to be careful with the biuret solution as it is harmful to skin and bad to inhale.
I need HELP PLSSSSSSSSS
C is the Answer
Explanation:
The answer should be the different types of tissues working together to carry out a function
What are the living and non-living things found in the coral reefs?
Answer:
Explanation:
Example of non living thing in coral reefs are sea shells,example of living things are lobsters, clams, seahorses, sponges, and sea turtles.
The image shows a portion of the fossil record that spans several million years. In the image, the numbers designate different rock layers, with the number 1 corresponding to the oldest rock layer.
What statement provides the best explanation for the change in the species between rock layer 1 and rock layer 2?
A. An abrupt change in the environment caused the original species to evolve into several new species.
B. The original species hybridized with a single new species, resulting in a variety of species.
C. Humans introduced several new species into the environment after the original species had died out.
D. The original species died out, and several new species evolved that were better suited to the environment.
Answer:
answer is B
Explanation:
The original species died out, and several new species evolved that have desirable traits to survive in the changing environment. Therefore, the correct statement is option D.
What is theory of evolution?There are changes in species among different rock layers when the fossils are studied. Fossils are the preserved remains of living organisms from the past, and they provide information regarding different types of organisms lived during that particular period of time.
Scientists have found different fossils in different layers representing different groups of organisms. Various factors are responsible for these changes, including environmental changes, competition, genetic drift, etc.
Theory of evolution states that species evolve from time to time through natural selection, where individuals with desirable traits have high chances to survive. Therefore, the original species in rock layer 1 did not survive in the changing environmental conditions, and they died. However, new species evolved that were better suited to the new environment and have high chances of survival due to natural selection and adaptation.
Therefore, original species died, and new species evolved that were better suited to the environment.
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Which statement accurately describes the relationship between air pressure, air density, or altitude?
As altitude increases, pressure increases.
As altitude increases, air density increases.
Air pressure and density are lowest at sea level.
Denser air exerts more pressure than less dense air.
The statement which accurately describes the relationship between air pressure, air density, or altitude is: D. Denser air exerts more pressure than less dense air.
What is air circulation?Air circulation can be defined as the movement and flow of atmospheric air from one point of the equator to another such as North pole to South pole, especially over long distances due to difference in atmospheric pressure.
Generally, atmospheric air that has more density (denser air) would exert more pressure than an atmospheric air that has less density because of a difference in temperature.
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The statement that describes the relationship between air pressure, air density, or altitude is "denser air exerts more pressure than less dense air," hence option D is correct.
What is air pressure, and air density?In contrast to the specific volume, which is described in terms of unit mass of dry air, air density is defined as the mass of air per unit volume.
Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure.
This is due to the fact that more air molecules are crammed into a given amount of air as density increases.
The force exerted by more air molecules to be greater, and as pressure is the force exerted per unit surface area, it follows that higher density air will experience greater pressure than air with lower density.
Therefore, option D is correct.
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Which phrases best identify characteristics of asexual reproduction?
Answer:
C. One parent, NO union of gametes, offspring genetically identical
Explanation:
This is only true for Asexual Reproduction. There is one parent only, no union of gametes, and the offspring is completely identical to the parent.
Hope it helps!
HELP!
In the desert, saguaro cacti, owls, horned lizards, and fire ants all share the same space.
Which example can be considered a population?
the lizards and the ants
all plants in the same area
all species in the same area
all saguaro in the same area
Answer:
I did the test; proof
Neurons and muscle cells perform different functions. In the body, these cells have the same . The function of muscle cells is , while the function of neurons is to send nerve signals.
Answer: Nerve cells and muscle cells are excitable because their cell membrane can produce electrochemical impulses and conduct them along the membrane.
Explanation:
Answer:
Gentic Makeup, and Movement
Explanation:
compare and contrast meiosis and mitosis.
Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Explanation:
If this helps you, help me by voting brainiest.
BRAINLEST to FIRST CORRECT answer
Identify structures found in fungi. Check all that apply.
produce spores
contain pseudopods
contain hyphae
contain a fruiting body.
Answer:
produce spores
contain hyphae
contain a fruiting body
Explanation:
Which has the HIGHEST metallic characteristics?
Мо
Y
Nb
Zr
Answer:
It is either y or nb
Explanation:
I had a lesson on this but don't remember exactly.
2. Wolves have genes that give them a very powerful sense of smell much more
powerful than humans, this is an adaptation by natural selection. The wolves that
reproduced more offspring with a better sense of smell thereby increasing the
frequency of those genes in the population that survived longer. Give an example of
adaptations in other organisms that may have resulted from variations that were
favored by natural selection.
Answer:
A good example may be represented by different shapes and sizes of beaks in finches living on different Galapagos islands
Explanation:
According to the evolutionary theory proposed by Darwin, natural selection is a mechanism that acts on heritable phenotypic variation among individuals within a population. Genetic variation can be considered as the primary source of heritable phenotypic variation. Those organisms that are better adapted for a particular environment will have more chances to survive and reproduce, thereby passing these heritable traits to the next generation. For example, during his work, Darwin observed that the shape and size of beaks in finch species from different islands in the Galapagos archipelago varied as a consequence, i.e., as an adaptation, to the availability of food resources present in each island.
An example of adaptations in other organisms that may have resulted from variations that were favored by natural selection. - The light-colored mice are an adaption favored by natural selection as they were able to live longer.
Adaptations are physical or behavioral traits that make an organism better suited to its environment. The inheritable variation comes from random mutations.
the example of such variations caused by natural selection are:
The Deer mouse adapted to the environment by developing a lighter color.The light-colored mice were able to live longer.Thus, The light-colored mice are an adaption favored by natural selection as they were able to live longer.
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8. What is the probability that an Rr organism and an Rr organism will
produce an RR offspring? Mark all that apply.
A scientist classified 10 organisms into the same phylum based on their similarities. She further grouped 4 of these organisms together based on the
characteristics they shared. In to which level of classification did the scientist classify the 4 organisms?
a. family
b. genus
c. class
d. order
How is integrated pest management a more
sustainable way to manage agricultural pests than using
synthetic pesticides?
Answer: Natural alternatives to synthetic chemicals
Garlic spray for aphid infestation.
Chilli spray for soft-bodied insects.
Bordeaux spray for fungal diseases.
Molasses spray for chewing insects.
Oil sprays for sap-sucking insects.
Explanation:
Two groups of students were tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators. Which group is the control group? Experimental group?
Aye yo anyone know this question?
Homologous structures - common ancestor, similar structure, different function
Hope this helps
Answer:
Homologous structures point to a similar origin and a common ancestor, analogous structures are when animals have similar structures with similar function, but they evolved separately. Examples include the wings on butterflies, bats, and birds. They're all used to fly, but the animals are not directly related.
Explanation:
I searched it lol.
why is there is no point in adding more generations when an allele has become fixed
Answer:
Low genetic diversity, which is seen with allele fixation, is dangerous as it can lead to mass extinctions. If there is little genetic variability within a population and the genetically similar individuals all are susceptible to a certain pathogen, the population will likely cease to exist. This is why we see examples of populations with fixed alleles becoming threatened or endangered
Explanation:
basically, it will cause extinction
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Why did the Anti-Federalists want a bill of rights included in the Constitution?
A) They wanted to strengthen to power of the national government.
B) They wanted people's rights to be protected.
C) They wanted to make trouble for the Federalists.
D) They wanted to give more power to the state governments.
Answer:
The Federalists felt that this addition wasn't necessary, because they believed that the Constitution as it stood only limited the government not the people. The Anti- Federalists claimed the Constitution gave the central government too much power, and without a Bill of Rights the people would be at risk of oppression.
So B, They wanted to protect people rights to be protected
Answer: The answer is d
Explanation: And a brain list please
Do you think all organisms have DNA?
Help ASAP
Answer:
All living things have DNA within their cells so it is a yes
Explanation:
What is an adaptation?
A change that prevents a species from surviving.
A change that helps a species survive.
A change that makes a species become extinct.
A change that makes a species prettier to look at.
Answer:
the second one
Explanation:
are proteins that are found on the surface of some red blood cells,
Question 7 (1 point)
How are humans changing the carbon der
Lesson 1.10
all of the choices
Answer:
Human activities affect the carbon cycle through emissions of carbon dioxide (sources) and removal of carbon dioxide (sinks). The carbon cycle can be affected when carbon dioxide is either released into the atmosphere or removed from the atmosphere.
Explanation:
does this help
Describe the ways mutations can affect DNA and chromosomes.
The mutation affects DNA and chromosomes by changes in the sequence of DNA or changes in the gene present on the chromosome.
What is mutation?The mutation is a sudden change in the structure of chromosomes or DNA. The smaller mutation affects the nucleotide base in DNA, while the larger mutation affects the genes present on the chromosomes.
The substance which causes mutation is known as mutagens. Mutation can cause problems in growth and development and affects the functioning of the body. When changes occur in chromosomes or DNA, they cause changes in the protein. Due to this, a different kind of protein is produced.
The mutation is caused by the insertion, duplication, deletion, and substitutions of a DNA sequence. Thus, mutation can affect DNA and chromosome in many ways.
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1. Consider the following food chain.
grass
deer
wolf
If the deer population increases, explain what could happen to the grass population
Most likely the grass population will decrease and the wolf population will increase.
Eventually it should level out again though.
If the population of deer will increase will result in the decrease in grass quantity.
What is a food chain?A food chain is a linear network of links in a food web that begins with producer organisms and ends with an predator, detritivores, or decomposer species.
A food chain also shows how organisms are related to one another through the food they consume. Each extent of a food chain represents a distinct trophic level.
Overgrazing occurs when there are too many deer in a given area, resulting in the loss of brush and shrubs in forested areas. The absence of undergrowth means that small animals and birds have no place to shelter and nest.
As a result, many native species are becoming extinct because they no longer have access to the habitat they require.
Thus, the grass population will decrease as a result of increase in deer population.
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What type of cells do not go through mitosis?
Answer: Sperm cells and Egg cells don't go through mitosis.
Explanation:
Answer: Germ cells do not undergo mitosis.
Explanation: hope i helped!
hey ! what is the difference between a habitat and a niche?
ill give brainliest if i can, but id k im high enough level yet lol
Answer:A habitat is the place where an organism lives while a niche is that organism's role within that environment.
Explanation:
Answer:
Down Below:
Explanation:
Habitat = the natural home or environment of an animal, plant, or other organism.
Niche = a comfortable or suitable position in life or employment.
In order to create a big storm, the HIGH LEVEL TEMPERATURE had to be... A.Very Cold B.Cold C.Cool
Question:
In order to create a big storm, the HIGH LEVEL TEMPERATURE had to be... A.Very Cold B.Cold C.Cool
Answer:
A, because in order to create a big storm, the temperature has to be at least 40-20 degrees Fahrenheit (below 30 is freezing point, aka snow), and that would be weather where you would need to wear a thick jacket and warm pants.
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PLEASE HELP, WILL MARK BRAINLEST
Examine the following image. Which ocean-floor feature is indicated by the arrow in the image?
A diagram showing a location where seafloor spreading occurs
Public Domain
Guyot
Mid-ocean ridge
Seamount
Trench
Answer:
Its a guyot.
Explanation:
That picture on the screenshot looks like the one I put in
Answer:
guyat
Explanation:
A person takes a drink of water and begins to
choke. The water has gotten into the person's
windpipe. Which part of the upper respiratory
system is supposed to prevent this?
larynx
nasal cavity
pharynx
nose
A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow. But in some cases, food or drink can enter the trachea. It may go down as you swallow.
Answer:
Larynx
Explanation:
In cats, the allele for black coat color is dominant over the allele for white coat color. If a white cat crossed with a heterozygous cat, what is the expected genotypic ratio? *
10 points
4BB : 0Bb : 0bb
2BB : 2Bb: 0bb
0BB : 2Bb: 2bb
0BB: 0Bb: 4bb