Answer: Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body. Newer vaccines contain the blueprint for producing antigens rather than the antigen itself. Regardless of whether the vaccine is made up of the antigen itself or the blueprint so that the body will produce the antigen, this weakened version will not cause the disease in the person receiving the vaccine, but it will prompt their immune system to respond much as it would have on its first reaction to the actual pathogen.
1. Comparision of DNA sequences among single-celled organisms suggests that eukaryotes are more closely related to archaea than bacteria. The type of evidence is .
The type of evidence is indicating that eukaryotes are more closely related to archaea than bacteria is BIOINFORMATICS. This field of study compares nucleotides (DNA) sequences.
Bioinformatics is an interdisciplinary discipline that uses computational tools to interpret biological data.
This field of study (bioinformatics) compares nucleotides (DNA) sequences in order to determine the evolutionary level of shared ancestry between species.
For this purpose, bioinformatics uses the linear order of nucleotides in order to compare different species.
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Which statement explains why ammonites are a good example of an index fossil?
Answer:
Ammonites existed only in the oceans.
Explanation:
Index fossils serve as a relative dating marker for geologic time periods and the rocks formed at those times. The fossils are of species that lived for only a short while, though that could be millions of years, and were widespread on the Earth. Ammonites are good index fossils for several reasons. First, they are easily identified by their spiral shells.
The statement explains why ammonites are a good example of an index fossil
Ammonites existed only in the oceans.
What is an Index fossil?
Index fossil are plants and animals which have been preserved in rock
surfaces over a long period of time and are usually characteristic of a
particular geographical location.
Examples of Index fossils include:
Ammonites Brachiopods, Graptolites NanofossilsTrilobitesAmmonites are animal fossils which are characteristic of the marine
environment.
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The type of fossil fuel made from the remains of ancient plants that lived millions of years ago is A. peat B. coal C. oil D. natural gas E. synfuel
Answer is B coal
Explanation:
thank you
Complete the sentence by using the correct word. Studies of levels of poisons in snow were made by a(n) _____. analyzed especially accumulative environmental microscopic particles industrial geochemist exhaust toxicity
Answer:
I think it may be geochemist. sry if its wrong!
Explanation:
Three types of macromolecules are mentioned in the video that are digested and ABSORBED in the small intestine. What do they all get absorbed into first?
Lacteals
Epithelial cells
Capillaries
Given what we know about the biology of the small intestine, we can confirm that the macromolecules are being absorbed into the "Epithelial cells".
The small intestine is in charge of absorbing the nutrients, which we require in order to survive and perform even the most basic metabolic processes, from the food that we ingest. In order to be able to perform this function, the cells in question have specialized epithelium which consists of Microvilli.
Microvilli can be thought of as membrane protrusions that serve to expand the surface area of the epithelial cells. This allows the cells to have a greater area through which to absorb nutrients such as the macromolecules mentioned.
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What is the difference between an f donor and an hfr donor?.
Sunlight helps our bodles to produce Vitamin D. In some areas of the United States, there is not enough sunlight during the winter mont
support this process. What is on thing you would recommend to people who live in those areas?
O A. Drink juice that is pasteurized with Vitamin D.
O B. Eat more proteins that bulld Vitamin D.
O C. Drink soymilk that is enriched with Vitamin D.
O D. Eat more carbohydrates that bulld Vitamin D.
Answer:
It would be the first one
Explanation:
A lot of juices are pasteurized with Vitamin D it can be V8, orange juice, grape juice, cranberry juice, etc.
Select all of the choices that are true regarding tides...
Spring tides occur when the gravitational pull of the sun and moon are in line with each other, while neap tides occur when the gravitational pull of the sun and moon are perpendicular to each other
Tides only occur in the ocean
Tidal forces are primarily caused by the moon's gravitational pull
Larger bodies of water have more noticeable tides
Tidal forces are caused by a combination of the gravitational pull of the Moon and the Sun
Spring tides occur when the gravitational pull of the sun and moon are perpendicular to each other, while neap tides occur when the gravitational pull of the sun and moon are in line with each other
Answer:
a,b,c,e
Explanation:
please mark as brainlists
The nucleus signals to the cell that the cell needs to divide. What life function is this an example of?.
Answer:
Reproduction
Explanation:
They are replicating...
Its something like that I wasn't given choices so I tried my best with the given information.
I'll mark brainliest, please, I need it!
The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
A slanting line is shown. There are four lines drawn vertically on this line at equal intervals. There is a black circle between each pair of these vertical lines. Protists, Plants, Fungi, Animals are written on top of each vertical line in order from left to right. Common Cell is written on the left most end of the sloping line. The second black circle has Mostly Multicellular written on it. The first black circle has X written on it.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:
i need to do some research really quick then i will give the answer once i find it
Explanation:
which of these statements best describes the role of this enzyme in digestion
Answer:
One of the most important roles of enzymes is to aid in digestion. Digestion is the process of turning the food we eat into energy. For example, there are enzymes in our saliva, pancreas, intestines and stomach. They break down fats, proteins and carbohydrates.
Explanation:
hope this helps
____________ results from chemicals in car exhaust reacting with the sunlight.
Acid Rain
Contaminant fog
Smog
Greenhouse Effect
Answer:
smog
Explanation:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
When is it important to drink water?
Answer:
d. All of the above
Explanation: correct
Answer:
? why did you post this
Explanation:
Plant cells that give rise to two cells, one of which is free to differentiate into various kinds of cells that contribute to the plant body, are called
Answer:
meristematic cells
Explanation:
What are the four functions of lipids
Answer:
Store Energy – When we take in more energy than we need, the body stores it as adipose tissue (fatty tissue, which we call fat).
Regulate and Signal – Lipids regulate the temperature of your body, keeping it steady, not too hot, and not too cold.
Insulate and Protect – Our bodies are padded with fat, protecting us from everyday friction.
Aid Digestion and Increase Bioavailability – When food breaks down in the gut, fat is released and combines with fat-soluble nutrients
Explanation:
Which is a homologous structure to the human forearm?
O A. The beak of a bird
OB. The skull of a raccoon
O C. The tail of a dog
O D. The leg of a horse
The homologous structure to the forearm of humans is the leg of the horse.
What are homologous organs?Homologous organs are organs that share similar structural organization. They are similar structurally but are different in functions. They share common ancestors. These organs are anatomically similar. As there are common ancestors, this type of evolution is known as divergent evolution.
The reason behind the divergent evolution is environmental changes, and food requirements which force them to evolve according to the requirements. The wings of bats, the forearms of humans, and the front legs of the horse are a few examples of homologous organs which underwent divergent evolution.
Homologous organs have different functions in organisms.
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Question 1 of 5
How do stories differ from scientific explanations?
A. Stories avoid presenting bias.
B. Stories are based on evidence.
C. Stories are based on imagination.
D. Stories are always negative.
SUBMIT
To all bug experts, what is this bug?
Answer:
I think it is an emerald cockroach
Why can populations of invasive species increase rapidly in new environments
Answer:
they have no preditors in that current enviroment that can or is used to eating them so they just grow with no resistance
Explanation:
What is ONE way in which geologists may utilize GPS and satellite mapping?
A way through which geologists may utilize GPS and satellite mapping is to monitor the changes in the environment.
A global positioning system refers to a network of receiving devices and satellites that are used to determine the location of a particular thing on Earth.
It should be noted that a global positioning system (GPS) and satellite mapping can be used in monitoring changes in the environment. It can also be used to collect accurate field data when mapping or surveying.
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What type of molecule controls photosynthesis
Answer:
Chloroplasts, I believe
Explanation:
in the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly. this phenomenon occurs because the rods located in the retina are:
In the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly, this phenomenon occurs because the rods located in the retina are: more sensitive in the dark than cones.
The retina extends through the posterior portion of the eyeball is the innermost layer and in it are the photoreceptors: cones and rods.
Rods and cones are the two types of photoreceptor cells in vertebrates that capture light energy (photons) and convert it into electrical signals.
The rods are sensitive to changes in light, since their detection thresholds are low, so they only come into operation when the light intensity is low (scotopic vision or night vision).Scotopic vision has relatively low acuity, as the details of an object cannot be discerned or its color appreciated.On the contrary, cones have a much higher threshold for light, they are responsible for daytime vision (photopic vision) and their mission is to detect colors and shapes (details).Therefore, we can conclude that in the dark, an object is more clearly seen when viewed in peripheral vision than when viewed directly, this phenomenon occurs because the rods located in the retina are: more sensitive in the dark.
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why would you not use green light and white light if you wanted to determine the dependence of specific color wavelengths on the rate of photosynthesis?
Given our understanding of the situation, we can confirm that the use of green or white light would not be ideal for the experiment at hand because it will not yield any useful information.
In this experiment, we wish to determine the dependence of specific color wavelengths on the rate of photosynthesis. The use of white light for this experiment will defeat the purpose, given that white is the naturally occurring color of light and the available data on this is vast.
Furthermore, we would not use green colored light because it will not be effective. The effectiveness of the color of light that we decide to use will be based on the absorption rate of the light at a cellular level. Green light is known to not be well absorbed by the chlorophyll of plants and therefore will not be useful.
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During meiosis, two sets of chromosomes in a cell are divided among the nuclei of four cells resulting from the process. Each nuclei has
half the number of chromosomes as the original cell.
one–fourth the number of chromosomes as the original cell.
twice the number of chromosomes as the original cell.
the same number of chromosomes as the original cell.
Answer:
half the number of chromosomes as the original cell
Explanation:
When testing the effect of light on flowering patterns of plants, temperature would be considered a?
A.independent variable
B. dependent variable
C. constant
Answer: Independent Variable
Explanation: Already explained this one in another post.
A(n) ______ gene is a type of gene that regulates development and that, when mutated, leads to organisms with structures in abnormal or unusual locations on their body.
A (n) homeotic gene is a type of gene that regulates development and that, when mutated, leads to organisms with structures in abnormal or unusual locations on their body.
A homeotic gene is a gene that intervenes in the developmental program that determines the location of structures along the anteroposterior axis.
The determination of the anteroposterior axis is one of the earliest events in development, and it guides the remaining processes of organogenesis. Once homeotic genes define the identity of the body segments, they code for proteins (homeodomain) that are responsible for activating other genes.These genes ultimately trigger the formation of the organs or limbs of this segment.Genes that control the position of organs have been called homeotic genes, while mutations that affect these genes are known as homeotic mutations.Therefore, we can conclude that homeotic genes are expressed in the body regions that will house the growing structures.
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A note to Charles Darwin about his findings
Answer:
Dear Charles Darwin,
My name is ___ and I was wondering how all of your theories and findings came to your comprehension of evolution. I have heard and learned about your evolution theories and would like if you could answer some of my questions. What first sparked the interest in evolution? Do you truly believe that everything evolves over time? How do your findings contribute to your theories of evolution? Thank you for your time to answer these questions.
Sincerely ___
Explanation:
Charles Robert Darwin was a British naturalist, geologist, and biologist best known for his contributions to evolutionary science. His dissertation that all kinds of life are derived from a common ancestor is widely accepted today and is considered a basic concept of science.
Which of the following is stored in bone?
Answer:
d. All of the above
Explanation: is correct
Answer:
its all of the above. ya ur correct
Explanation:
Which of the following nerves is responsible for hearing and balance?
Answer:
b. Vestibulocochlear nerve
Explanation: is correct
What is the word for the skin having microscopic holes.
