Answer:
It has special items in the substance that are specialized for whitening and preventing things such as cavities.
Explanation:
Answer:
Toothpaste protects our teeths from unwanted bacteria in our mouth. It promotes oral hygiene.
It removes the food from the teeths which we have after the meal and it also prevents tooth decay.
hope it helps!
Explain why recycling cans, bottles, and paper is a way to promote sustainability.
The ____ keeps the climate of Great Britain warmer than it would normally be.
A. gulf stream
B. lake effect snow
C. polar jet stream
D. tropical jet stream
Answer:
a
Explanation:
Answer:
A The Gulf Stream
Explanation:
Moving west to east warming the waters of the Atlantic along with Great Britain and some of Western Europe.
Minerals that do not have weak bonds along specific planes will
A. streak
B. luster
C. cleave
D. fracture
Which of the following is true about scientific knowledge?
It never changes.
It is durable.
It is based on opinion.
It is untested.
Answer:
B
Explanation:
It is durable
Answer:
B. It is durable.
Explanation:
Scientific knowledge can change because it is often examined and re-examined by new investigations and scientific argumentation. Because of these frequent examinations, scientific knowledge becomes stronger, leading to its durability.
Biology, Plant-Life Select all that apply (image below)
What is the function of junk DNA in cells?
Select all that apply.
a) protecting the ends of chromosomes
b) turning genes on and off
c) holding the nucleus together
d) coding for proteins
Answer:d
Explanation:
14. When we are too cold, these trap a layer of air for insulation. *
Hair
Mucus
Sweat glands
Capillaries
How do mutations cause variation?
Answer:
Mutations can create entirely new alleles in a population which changes the allele frequencies of a gene pool.
A glucose molecule is the
Answer:
Glucose is one of the main products of photosynthesis and starts respiration. The natural form (D-glucose) is also referred to as dextrose, especially in the food industry.
Explanation:
Using the example of the Abert’s and Kaibab squirrels, describe what happened to them at each stage of their speciation.
Answer:
The Alberts and Kaibab squirrels different from their respected paths by
geologic isolation. The two species of squirrels were seperated and then eventually adapted to their respected environments .
Explanation:
Hopr it helps !!!
18. Cooler weather and fewer hours of daylight signal the approach of fall. 4 points
Which feature of Earth is MOST responsible for these changes?
the tilt of Earth's axis
O the strength of Earth's gravity
the distance of Earth from the Sun
the direction in which Earth rotates
Answer:A
Explanation:
The tilt of the earth axis makes parts of earth closer to the sun than other without the entirety of earth being any closer, which is why seasons are different on different parts of the earth
The body’s nonspecific defenses against invading pathogens include
Answer:
anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN
Explanation:
Which statement explains Mendel's law of segregation?
A. Two alleles for a trait separate during meiosis
B. Two alleles that were segregated come together during meiosis
C. Alleles if the same trait segregate only during mitosis
D. Alleles of a trait can never be separated from each other
Answer:
A. Two alleles for a trait separate during meiosis
Explanation:
I just took the Biology final and I got 100%!!!
Mendel's law of segregation should be explained with option A. Two alleles for a trait separate during meiosis.
The following information should be considered:
As per the law of segregation, only one of the two gene copies should be present in an organism and that can be distributed to each gamete (egg or sperm cell) .After this, it makes, and the allocation of the gene copies should be done on random basis.Learn more: https://brainly.com/question/20492533?referrer=searchResults
How does global warming affect biodiversity?
A)
increasing temperatures mean increased ability to adapt to the changes
B)
increasing temperatures mean increased risk of extinction
C)
increasing temperatures mean increased habitat development
D)
increasing temperatures mean increased sources of food
Which of the following choices contains two ways in which carbon dioxide
enters the atmosphere?"
O A erosion and transpiration
O B decomposition and respiration
C volcanic activity and photosynthesis
Dhuman activity and formation of fossil fuels
Decomposition and respiration choices contains two ways in which carbon dioxide enters the atmosphere.
What is Decomposition?
Decomposition, often known as rot, is the breakdown of dead organic matter into more basic organic or inorganic components such carbon dioxide, water, simple sugars, and mineral salts.
The procedure, which is a component of the nutrient cycle, is crucial for recycling the limited amount of matter that takes up real estate in the biosphere.
Creatures like worms also contribute to the breakdown of the organic compounds. Decomposers or detritivores are organisms that carry out this process.
Therefore, Decomposition and respiration choices contains two ways in which carbon dioxide enters the atmosphere.
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If the conditions of the environment change so that a population is no longer adapted to the environment that population will most likely
Answer:
That population will most likely die off.
Consider the chromosome.
The parts of a chromosome are labeled. The lines on the chromosome are labeled b.
Which best describes the function of the part labeled b?
carries all the genetic information of the organism
provides the master instructions for the cell
joins sister chromatids
codes for a specific trait
Answer:
D.
Explanation:
..
The part labelled B is gene which codes for a specific trait. So, the correct option is (D).
What are Genes?Genes are defined as the basic unit of heredity passed from parent to child that are composed of sequences of DNA and arranged one after the other at specific locations on chromosomes in the nucleus of cells.
The main function of genes is to code for a specific trait where every individual on this earth is different from each other. The traits that make individuals alike are the genes they carry.
Traits like eye color, height, ear size, height are controlled by genes where as such characters like fur color, flower size, flower color are also controlled by genes. The characteristics responsible for what a person is like are borne by genes.
Thus, the part labelled B is gene which codes for a specific trait. So, the correct option is (D).
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What conditions can cause a population to grow
Answer:
Causes of population growth include high birth rate, low infant mortality, increased food production and improvement of public health.
Answer:
birth rate, death rate, immigration, and emigration.
Explanation:
These all can cause and population to grow
• What is the difference between center of mass and center of gravity?
Answer:
Center of mass is the point where distribution of mass is equal in all directions, and does not depend on gravitational field. Center of gravity is the point where distribution of weight is equal in all directions, but unlike center of mass, it does depend on gravitational field.
The dodo bird used to be found in high populations on their island habitat. However, sailors would stop by the island to eat the dodo birds because they were easy to catch. Eventually, the dodo population went extinct.
This is an example of biodiversity loss due to:
Overpopulation
Invasive Species
Habitat Destruction
Overexploitation
Answer:
Overexploitation
Explanation:
Gradual declination of certain species of organisms in an ecosystem, which leads to their extinction occurs from time to time. This is referred to as the loss of biodiversity or simply biodiversity loss. Many factors contribute to the loss of biodiversity in an ecosystem, they include: habitat loss, invasive species, overexploitation etc.
Based on the description of the cause in this question, the biodiversity loss is as a result of OVEREXPLOITATION. Overexploitation is when certain animals are utilized more than the surviving ones can reproduce to cover the loss.
In this case, the sailors overexploited the dodo birds in their island habitat by feeding on them excessively because they were a easy catch.
Could two humans have some differences caused by mutation in their DNA sequences for insulin, yet still make the exact same insulin proteins? Question 7 options: No, DNA is very precise and only one specific sequence will produce insulin No, each person's DNA is unique and will make a unique insulin protein Yes, different codons can code for the same amino acid.
Answer: Yes
Explanation:
Two humans have some differences caused by mutations in their DNA sequences for insulin, yet they still make the exact same insulin proteins, and this is true. The correct answer is yes; different codons can code for the same amino acid, which is the last option.
What are DNA and genetic code?The genetic code is the set of rules by which the nucleotide sequence of a DNA molecule is translated into the amino acid sequence of a protein. A codon is a sequence of three nucleotides that specifies a particular amino acid. There are 64 possible codons but only 20 amino acids, so the genetic code is degenerate or redundant. This means that different codons can code for the same amino acid.
Hence, two humans have some differences caused by mutations in their DNA sequences for insulin, yet they still make the exact same insulin proteins, and this is true. The correct answer is yes; different codons can code for the same amino acid, which is the last option.
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30. Which of the following statements is TRUE about protein? (1 point)
The more protein and protein supplements you eat, the more muscle you will gain or maintain
q Excess protein is stored by the body as fat.
ChExcess proteins are stored as amino acids in the muscle tissue.
O Protein is the primary source of energy for the body
Answer:
The answer is B
Sorry if Im wrong but I think it's write
Explanation:
The statement which is true about protein is: B. Excess protein is stored by the body as fat.
Protein can be defined as a macromolecule which is formed due to the union of many amino acids. Also, the two (2) main functions of protein include the following:
The enzymatic catalysis of glycolysis.To help in the growth of a living organism.Generally, the excess protein (amino acids) that are taken in by a living organism cannot be stored in the body. Thus, it is usually converted into carbohydrates or fats and then stored in the body.
In conclusion, the statement which is true about protein is that excess protein is stored within the body of a living organism as fat.
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In the classification of organisms by kingdom, all prokaryotes are grouped together in the kingdom Monera. Genetic research, however, led to the separation of prokaryotes into two domains, Archaea and Eubacteria. Which of the following best describes similarities between Archaea and Eubacteria?
Both can undergo binary fission and are autotrophs.
Both are able to withstand extreme temperatures and lack of oxygen.
Both have single-stranded, helical DNA and cell walls.
Both lack membrane-bound organelles and are single-celled.
Answer:
D. Both lack membrane-bound organelles and are single-celled.
Explanation:
All prokaryotes are classified in two domains Archaea and Eubacteria as they differ in some characteristics. But as they both are prokaryotes there is some similarities between Archaea and Eubacteria that is they both are single celled and lack membrane-bound organelles.
They both reproduce asexually by binary fission but both are autotrophic and heterotrophic. They both are unable to survive in lack of oxygen. They both have circular DNA and not helical DNA.
Hence, the correct option is D.
Answer:
Both lack membrane-bound organelles and are single-celled.
Explanation:
hi
16.Which one of the following does not affect water loss from a plant?
a.Temperature
b.Wind
c.Humidity
d.Photosynthesis
Answer:
b. Wind.
Explanation:
The wind only blows the plant this way and that. it won't exactly effect any major contributions from its original function.
I hope my answer helps you! :)
Which statement is true of Y chromosomes?
A. Women have two of them.
B. Only women have them.
C. All babies have them.
D. Only men have them.
Answer:
D
Explanation:
Only men have them. Women have two X chromosomes, (XX) and men have XY chromosomes.
Answer:
D
Explanation:
Which statement is scientifically reasonable?
In the early 2000s, scientists and farmers began to notice
a sharp decline in the population of honeybees around
the world. Many explanations were proposed for the
cause of the decline. Three possible explanations were
pesticides on crops, parasites in beehives, and cell phone
tower signals.
O One study showed that pesticides were affecting
bee populations near one farm. Therefore,
pesticides on crops is the only reasonable
explanation
A post online claims, "Many people thought that
cell phone signals were confusing the bees' sense
of navigation." Therefore, cell phone signals is the
best explanation
O Multiple scientific experiments need to be
conducted to determine whether these possible
causes are affecting bee populations.
Answer: Multiple scientific experiments need to be conducted to determine whether these possible causes are affecting bee populations.
Explanation:
Answer:
c
Explanation:
1 point
Until about 200 years ago, most scientists accepted the theory of
spontaneous generation. This theory states that organisms can arise from
non-living matter. Now scientists accept the cell theory to explain the
origin and growth of Few organisms. Which of these statements is a key
idea of cell theory that disproves the theory of spontaneous generation? *
Answer:
For many centuries many people believed in the concept of spontaneous generation, the creation of life from organic matter. Francesco Redi disproved spontaneous generation for large organisms by showing that maggots arose from meat only when flies laid eggs in the meat.
Explanation:
how does the skeletal system work
Answer: Muscles connect to your skeleton and they contract and move the skeleton along. Your skeletal system is made up of cartilage and calcified bone that work together. They help the process of movement happen in a smoother manner. The calcified bones of your skeleton also work with the circulatory system
Explanation: Mark me as brainliest
the function of chloroplasts in plant cells is to
A. Obtain water
B. Digest carbohydrates
C. Package proteins
D. Absorb sunlight
Answer:
d. absorb sunlight
Explanation:
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What economic system is characterized by an exchange of one product for another
currency
barter
loan
free market