Answer: A scientific theory concerns nature and is supported by data collected through field observations and experiments.
Explanation:
Scientific theories are only established based on verified facts derived well organized research and experiments using data and other supporting evidences. Theories differ from hypothesis or philosophical sayings which lacks factual and reproducible evidences.
Mrs. Underwoods theory could best be deemed as an assertion because her theory lacks an established and reproducible evidence prepared from data or experimental research to back up or align with her theory.
What can cause DNA to mutate?
a
Mutations can be caused by errors in
replication.
b
Mutations can be caused by mutagens in the
environment.
C Both A and B
d None of the above
Which of the following is not a component of a virus
True or false:
The oceans influence earth’s atmosphere?
Answer:
true
Explanation:
the answer should be true.
why is the sky red sometimes
Answer:
Because you're beautiful
Answer:
It is red when the sun is setting and the blue light is removed leaving red and yellow light
Explanation:
Which two parts of sedimentary rocks formation include the breakdown and carrying away of existing rock
Answer:
weathering
erosion
Explanation:
Weathering can be explained as the
breaking down of rocks as well as minerals or dissolving it on the surface of the earth. After the rock has been broken down then the bits of the rock can be transported away in a process known as " Erosion". The agents of
weathering and erosion could be water, salt, animal as well as plants.
It should be noted that the parts of sedimentary rocks formation that include the breakdown is weathering while the parts of sedimentary rocks formation that include carrying away of existing rock is erosion.
Answer:
weathering
and
erosion
A population of deer mice lives in a neighborhood. Which of these changes to
the neighborhood could increase the carrying capacity of this population?
Define the following words:
Cellular membrane
Passive transport
Osmosis
Simple Broadcast
Dissemination facilitated
Active transport
Endocytosis
Phagocytosis
Pinocitosis
Exocytosis
Answer: cellular membrane: The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
passive transport Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. Instead of using cellular energy, like active transport, passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.
What structures are responsible for the movement of chromosomes to the center of the cell in metaphase and their separation in anaphase?
What are the advantages of asexual propagation.
Answer:It may be the only way to perpetuate particular cultivars.Or
It maintains the juvenile or adult characteristics of certain cultivars.
Explanation:
If this is not the answer you want sorry i tried my best. :)
Scientists use a technique called ________ to make multiple copies of DNA sequences. Scientists can also make _______ by combining DNA from two different sources. One of the sources may be bacteria, which have circular DNA molecules called _________ When bacteria undergo transformation, they can be identified by _______.
1. gel electrophoresis
DNA ligation
recombinant DNA
the polymerase chain reaction (PCR)
2. plasmids
polyploidy
messenger RNA
recombinant DNA
3. polyploidy
recombinant DNA
plasmids
telomeres
4. nucleotides
genetic markers
telomeres
polyploidy
Answer:
the polymerase chain reaction (PCR)
recombinant DNA
plasmids
genetic markers
Explanation:
The answer is "the polymerase chain reaction (PCR), recombinant DNA, plasmids, and genetic markers".
Fill in the blank:To generate multiple copies of DNA sequences, researchers employ a technique known as polymerase chain reaction (PCR). Recombination of the DNA can also be created by combining DNA from two sources. Bacteria with circular DNA molecules known as plasmids could be one of the origins. Generic markers could be used to identify microorganisms that have undergone a transformation.Find out more about the DNA cloning here:
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How do biogeography help scientists determine relatedness of species through Evolution?
Answer:
Biogeography provides information about how and when species may have evolved
How could a rise of l m in the sea level directly affect humans?
A. Communities that depend on glacial run-off would face severe water shortages.
B. Residents of low-lying Islands in the Indian Ocean would be forced to abandon their homes.
C. Expansion of fertile floodplains along the Nile would make more land suitable for agriculture.
D. Residents along the U.S. east coast would become less vulnerable to storm surges and flooding.
The diagram shows Mendels test for flower color he crossed a plant with white flowers with one that had purple flowers then he let the first-generation offspring pollinate to produce the seconde-generation off spring
Answer: recessive
Explanation:A P E X verified
Mass, volume and density are all properties of
A
matter.
B
weight.
C
gravity.
D
formulas.
ANSWER FAST !!
I need this ASAP plzzz help!!
5. How does the inheritance of blood groups in humans demonstrate that Mendelian laws are not
always followed in heredity?
What will happen to the parts of the cricket as it travels through the digestive system?
Are there any concerns about certain people consuming crickets?
Answer:
it would be broken down
Explanation:
the digestive systems purpose is to break down food into energy
As the food goes from the very first part of the digestive system it reaches the last part as in its most digested form. The situation is possible because of the digestion.
What is the very first organ of digestive system ?It is the mouth that is solely making enough of digestion as it contains the amylase which is responsible for the digestion of starch.
As the food reaches the mouth it gets mixed with saliva which makes it easier to get break into and the food in this condition is called as bolus where the food will enter into the esophagus that is the food pipe via the peristalsis where the inward and outward movement of food pipe makes it enter the stomach.
In stomach the process of churning takes place where it gets mixed with the digestive juices and the food mixing with the digestive juices breaks into its simpler constituents.
Learn more about digestion at :
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Which animal is an inverterbrate?
A.trout
B. cat
C. snake
D. termite
Answer:
Termites
Explanation:
A termite is classified as an insect, and insects are inverterbrate.
What are winds that blow in a certain direction most of the time and can produce surface currents called?
ocean winds
surface winds
the Coriolis effect
prevailing winds
Answer:
Coriolis effect
Explanation:
There's really no explanation. I just know.
How does the type of rock in Earth's crust affect the distribution of groundwater
Answer:
Obviously, such rocks transmit only small quantities of water and are poor aquifers. By comparison, rocks such as fractured sandstones and cavernous limestone have large connected openings that permit water to move more freely; such rocks transmit larger quantities of water and are good aquifers.
Explanation:
Answer:
Rocks transmit small quantities of water and are poor aquifers. Comparison, rocks such as fractured sandstones and cavernous limestone have large connected openings that permit water to move more freely.
What type of animal is a spider?
Answer:
its an arachnid
Explanation:
Henry puts a plant into a beaker with water. After sometime he added blue ink into it A few hours later he observes that flowers turn from white to blue.
Answer:
The change in color in the flowers is because the plant has absorbed the dyed water. After some hours, we can see that the water has ascended through the roots, the stem and reached the flower petals. We can see the water's path till it evaporates in a process called transpiration, which returns water to the atmosphere.
Explanation:
Plants absorb water and other nutrients so that they can live. When we add ink into the water, we can see the water's path from the roots, up the stem, the leaves, and the flowers. In the flowers, the water evaporates through the stomata. We call this process transpiration. The ink allows us to see that the water was in the petals, but it evaporates, leaving behind the ink. As water evaporates, the plant drinks more, which results in a more intense color in the petals.
DNA is directly involved in the process of transcription?
Answer:
yes
Explanation:
the answer is yes. if the question is yes or no...
(GIVING BRAINLIEST!!)
Which of the following best describes hail?
A) Small ice pellets that may fall to the ground in a mixture of rain and snow in the form of a solid
B) A form of precipitation that occurs when liquid and frozen precipitation freezes in layers creating chunks
C) Water droplets that collide with others to form large drops as they leave the clouds and fall toward the ground
D) Solid precipitation that is formed in clouds as ice crystals that stick together in groups to form flakes and leave the clouds as flakes
explain why
Answer:
I think its a but dont mark me brailiest unless you get ut right cuz im not sure. done take my word on it
Explanation:
sorry if you get it wrong
Answer:
A) Small ice pellets that may fall to the ground in a mixture of rain and snow in the form of a solid
What makes plant material more difficult to digest?
Answer:
Cell walls can make plant material difficult to digest. Many herbivorous mammals have wide molars. These big teeth help them grind up leaves and grasses. Carnivorous mammals, on the other hand, usually have long, sharp teeth that help them grab prey and rip it apart. A group of herbivores called ruminants have specialized stomachs.
Explanation:
Construct the chemical formulas for the ionic compounds. Consult this periodic table to help answer the question.
Drag the labels to the correct locations on the image. Each label can be used more than once.
Answer:
Al_Br3
Mg_Br2
Na2S
Na3n
Explanation:
I just did it
The chemical formulas are aluminum bromide (AlBr₃), magnesium bromide (MgBr₂), sodium sulfide (Na₂S), and the chemical compound formula of the sodium nitride is Na₃N.
What is the significance of the chemical formulas?Chemical formulas are important to identify the chemical composition of the mixture as they provide important information about the types and numbers of atoms present in a molecule or compound and also predict the properties of a substance, such as its melting point and boiling point. This is useful in industries such as manufacturing, agriculture, etc which has significant importance in the field of medicine, as it helps researchers understand how the human body interacts with the drug.
Hence, the chemical formulas are aluminum bromide (AlBr₃), magnesium bromide (MgBr₂), sodium sulfide (Na₂S), and the chemical compound formula of the sodium nitride is Na₃N.
Learn more about the chemical formulas here.
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What is on a transplanted organ that causes the transplant recipient's body to reject it?
Answer:
Major histocompatibility complex (MHC) antigens
Explanation:
The process in which recipient body rejects the transplanted organ is called a allograft rejection or transplantation rejection.
A transplanted organ contains Major histocompatibility complex (MHC) antigens which are required to be accepted by the recipient's body to function properly but T cells in recipient's body become alloreactive and recognize MHC antigens (donor-derived antigens) as foreign and starts making antibodies against it. Which means the recipient's body is rejecting the transplanted organ.
Hence, the correct answer is "Major histocompatibility complex (MHC) antigens".
What is the function of the central vacuole in plants? (a) Stores water and dissolved nutrients (b) Carries out photosynthesis (c) Releases energy from stored nutrients (d) Protects the genetic material of the cell
Answer:
The correct answer is - option A. stores water and dissolved nutrients.
Explanation:
The central vacuole is a large vacuole in the plant cell that is made up of small vacuoles after combining together. The central vacuole plays many roles in the plant cell such as support the cell with the help of turgor pressure.
t stores water inside with dissolving other substances and nutrients such as salts, minerals, proteins and help in the growth of the plants. This structure store the nutrients and substances temporarily.
Thus, the correct answer is - option A.
HELP PLZ
explain whether the following statement is true or false: “All arteries carry blood with oxygen and all veins carry blood with carbon dioxide.”
Answer:
Its true because blood flow thru our veins
Explanation:
Drag each label to the correct location on the image.
Identify these elements of photosynthesis.
Answer:
Light energy is near the sunrays.carbon dioxide is given by the plant respiration that is leaf.Glucose is stored inside the tissues or the body of the plant.Explanation:
The plant performs a chemical activity of photosynthesis under the light during the daytime. During this process, the visible part of the spectrum reflects back the other spectrum of light. The plants produce oxygen and take in carbon at the same time they also provide carbon dioxide. Glucose is a type of energy available in starch is stored in plant leaf carbon dioxide is used to convert into sugar to form glucose.Answer:
left - carbon dioxide
right - glucose
top - light energy
I hope this helps
If a person has two blood type A parents could the child be blood type 0?
A Yes
B.No