Answer:
Because it's an opinion and cannot be tested.
Explanation:
Cells transport substances across the cell membrane through a variety of means.
Which of the following diagrams represents the movement of substances across the
membrane using a channel protein?
Answer:
facilitated diffusion.
What is causing the surge in antibiotic resistance?
Answer:
Antibiotic resistance is accelerated by the misuse and overuse of antibiotics, as well as poor infection prevention and control. Steps can be taken at all levels of society to reduce the impact and limit the spread of resistance.
Explanation:
Answer:
people using antibiotics all the time
Explanation:
It is causing a super bacteria/virus.
This DNA strand consists of eight pairs of nitrogenous bases. How many different sequences of eight bases can you make? Explain how you found your answer.
Answer:
In the sequence of 8, it would be 4 (possible bases) to the power of 8 because you need to multiply 4, eight times for the number of sequences. Therefore, the answer is 65, 536 possible sequences.
There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.
We have a DNA strand consisting of eight pairs of nitrogenous bases and we want to know how many different sequences of eight bases can we make, that is, how many combinations are possible.In DNA, there are 4 kinds of nitrogenous bases: Adenine (A), Guanine (G), Thymine (T) and Cytosine (C).Each position (P) can be occupied by any of the 4 bases (B). Since there are 8 positions, and the bases can be repeated, we can calculate the total number of different sequences (N) using the following expression.
[tex]N = B^{P} = 4^{8} = 65,536[/tex]
There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.
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Define ecological succession.
Answer:
the process by which the structure of a biological community evolves over time
Explanation:
Answer:
the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished.
Explanation:
Owls (primary predators of rock pocket mice) are nocturnal visual predators that are able to distinguish effectively between dark and light colors in low-light conditions,
Which of the following best explains the relationship between coat color and predation rate in the rock pocket mouse population on the lava flow rocks with
respect to the different coat color
phenotypes?
Answer: A dark coat color provides camouflage to mice on the lava flow rocks; therefore, mice with dark coats have a lower predation rate in that habitat.
How do blood glucose levels increase in the body?
Which statement is not true of mitosis?
Answer:
you didnt put anything for me to solve
Explanation:
put something for me to solve
The statements are:
A There are four stages of mitosis
B It is the division of genetic material of a dividing eukaryotic cell into two parts
C it is a process that takes an average of eight minutes for any cell to complete the process
D each daughter cell receives a full set of chromosomes identical to the parent cell
Nitrogenous wastes result from the metabolism of what?
Answer:
Explanation:
The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.
I explained it the best I could. Can I have brainlliest? Thank you.
Answer:
Explanation:The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.
A prokaryonc cel is similar to a eskaryotic celintat bom types of cells contain
Answer:
they both have a cell membrane
Please help please help please help please help please help please help please help please help please help please help please help please help please help please help
Answer:
It allows the cell to regulate the movement of materials into and out of the cell
Explanation:
This molecule is a saturated fatty acid. The cell membrane is made up of a phosphate head and three fatty acid tails that form a lipid bilayer arrangement.
This lipid bilayer regulates the entry and exit of substances into and out of the cell. Small non-polar molecules, like oxygen and carbon dioxide, are soluble in the lipid bilayer and can easily cross the plasma membrane. Small uncharged polar molecules, like water, can pass through the membrane by osmosis. Larger molecules such as glucose, or charged molecules like ions, require active transport to be passed across the cell membrane.
Answer:
It allows the cell to regulate the movement of materials into and out of the cell
Explanation:
What is the mRNA transcript for this gene? CTTCGGATC
Answer:
GAAGCCTAG
Explanation:
A in Bio last year
9.. Water enters the atmosphere as water vapor when liquid water ______
on Earth's surface. (12 points!!) i will give a brainliest and a like. please reply fast!!)
A mixture can be separated by all of the following EXCEPT
Filtration
Distillation
Sieving
A magnet
Evaporation
All are methods to separate mixtures
Answer:
All are methods to separate mixtures
Explanation:
A mixture consists of 2 or more substances that are mixed physically but not chemically. Hence, mixtures can be separated by any physical separation means which include but not limited to filtration, distillation, sieving, magnetization, and evaporation.
Filtration is usually used to separate suspended particles in a liquid using a membrane of a filter paper. Distillation is used to separate miscible liquids with varying boiling points by evaporating and condensing them back at their respective boiling points. Sieving is used to separate mixtures with varying particle sizes of individual components.
Magnetization is usually used to separate mixtures with, at least, one component with magnetic property. Evaporation is used to separate dissolved solids from liquids.
Hence, all the methods listed are used to separate mixtures.
The majority of earth is covered with water. Water takes longer to heat up and cool down which has an impact on the air temperature. The slow change in water temperature is due to waters
Answer:
high specific heat
Explanation:
The specific heat of the water plays an important role as it can absorb a lot of heat without a significant increase in the temperature.
3. Approximately when was
the Moon full?
Answer:
When the Sun and the moon directly align.
Explanation:
At Full Moon, the entire face of the Moon is illuminated by the Sun's rays and it can be bright enough to light up otherwise dark nights.
Technically, this primary Moon phase only lasts a moment, the instant when the Sun and the Moon are aligned on opposite sides of Earth (see illustration). So the exact time for Full Moon is during the day on parts of the planet.
However, the Moon can appear to be full a day before or after while more than 98% of the Moon's disc is illuminated.
Therefore, it can be difficult to tell the difference between a Full Moon and the last stage of a Waxing Gibbous Moon or the beginning of a Waning Gibbous Moon.
answer:
the last full moon was on _______ 2020
explanation:
googlw the last date and there you go!
hope this helped <3
The chemical reaction equation of photosyntesis is shown here: What information is not given in this equation. It does not show if the reaction is reversible or not reversible. It does not show the reactants needed for the reaction. It does not show that photosynthesis consists of many separate steps. It does not show the number of molecules required to produce glucose.
Answer:
does not show if the reaction is reversible or not reversible.
Explanation:
its that
is this correct? please help me
Answer:
It look good to me but I dont know for sure so we will see
Matter is moved through the Earth by the interaction of Earth’s systems.
true or false.
Answer:
True.
Explanation:
Answer:
True
Explanation:
Edge 2020
Which organism is an animal-like protist?
cilia
dinoflagellates
amoeba
truffle
Are Viruses Alive? Venn Diagram
Directions: Use the word bank provided to complete the Venn diagram below. Then complete the exercise
below.
Word Bank
Capsid
Cell Membrane
Nucleus
Evolve
RNA
Cell organelles
Envelope
Heredity
Homeostasis
DNA
Ribosomes
Develop
Cell
Virus
Answer:
Viruses are not alive
Explanation:
Viruses are acellular structures capable of performing some biological functions.
What are viruses?Viruses are parasitic structures made of an outer protein capsid and genetic material which are able to replicate in a living cell and thus cause infection in the cell.
Viruses hijack the replicative machinery of the host to produce copies of its own genetic material. A single infected cell is capable of producing thousands of viruses.
The virus only injects the nucleic acid inside the target cell, the envelope and capsid are left outside. The hijacked genetic machinery of the host produces further copies of the nucleic acid, capsid and envelope.
These structures are assembled to give rise to new viruses.
If a large number of viruses are synthesized rapidly, it results in cell lysis. This type of infection is called the lytic cycle.
If the virus genome incorporates with the host genome, it is present there silently and being replicated. Upon receiving an activation signal lytic cycle is activated. It is called the lysogenic cycle
Therefore, viruses are acellular structures capable of performing some biological functions.
Read more about viruses, here
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please answer this for me
Answer:
The answer is A
Explanation:
You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.
1 point
Item 4 is unpinned. Click to pin.
Which of the following correctly describes how epithelial tissues gets nourishment?
From blood vessels deep to the basal layer.
Epithelial tissue does not need nourishment, it is dead.
From blood vessels scattered throughout the cells.
From the air surrounding the apical surface.
From the air surrounding the apical surface.
Answer:
ndjdosnsbzuxjsnsjdnskqowlmene
What are the two bands of latitude on Earth that receive no light at times called?
Answer:
summer and winter
Explanation:
Examine the images.
Which of the following statements best explains why the cube in Image B is under more pressure than the cube in Image A?
A.) The density of the fluid in Image B is greater than that of Image A.
B.) The volume of the cube in Image B is greater than that of Image A.
C.) The volume of fluid in Image B is greater than that of Image A.
D.) The mass of the cube in Image B is greater than that of Image A.
The answer is C.) The volume of fluid in Image B is greater than that of Image A.
During cell respiration, the reactants of glucose and oxygen are transformed into the products of carbon dioxide, water, and ATP. Which of the following cell transport processes would be relatively unaffected if a cell no longer had access to glucose? Choose 1 answer: Choose 1 answer: (Choice A) A The transport of calcium into a muscle cell via facilitated diffusion. (Choice B) B The transport of an amino acid into an intestinal cell from an area of low concentration to an area of high concentration gradient. (Choice C) C The transport of sodium against its concentration gradient in a brain cell. (Choice D) D The passive transport of a charged potassium ion (K^+ + start superscript, plus, end superscript) through a cell membrane.
The process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.
What is Cellular respiration?Cellular respiration may be defined as the chemical process through which the breaking down of food occurs with the liberation of energy. This process takes place in the excess of oxygen and constructs energy from carbohydrates (sugars).
The excess glucose delivers the required energy for the cell to perform its metabolic activities. But when the amount of glucose is not significantly present in the cell, the process of transport of calcium into a muscle cell via facilitated diffusion remains unaffected.
This is because the transport of calcium occurs due to paracellular passive transport without the utilization of energy. While the rest of the process requires energy for the transport.
And due to a lack of glucose, cells do not have the ability to derive energy in form of ATP.
Therefore, the process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.
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The conversion of energy involve many chemical reactions taking place within an organism or the environment. What is the term for the energy needed to begin one of these reactions?
A. reaction energy
B. Activation Energy
C. Absorption Energy
D. Conversion Energy
I think is a because that's is the right answer
Answer:
It is b i got it right
Explanation:
9. List the steps of cellular respiration in order
Answer:
glycoliysis, citric acid cycle, electron transfer chain
Fragments of metal or rock which enter the Earth's atmosphere from space are called:
Meteorites
Meteoroids
Meteors
meteoroid- hope this helped have a good day!!
Answer:
meteorites. i had the same one.
Explanation:
Proteins are found in all cell types and tissues. Contrasted to proteins found in skeletal tissue, what is the main function of proteins found in antibodies?
A. to provide storage for elements
B. to allow muscle movement
C. to provide storage for energy
D. to protect against disease
Answer:
d
Explanation:
Cold food should be stored at a maximum internal temperature of 41 degrees F or lower.
True
False
Answer:
the answer is true I think
Answer:
I took the test.
Its False