Answer:
Mitosis
Explanation:
Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus.
What happens that makes rain start to fall from a cloud?
Answer:
when water vapor turns into clouds
Explanation:
Water vapor turns into clouds when it cools and condenses—that is, turns back into liquid water or ice. ... In the cloud, with more water condensing onto other water droplets, the droplets grow. When they get too heavy to stay suspended in the cloud, even with updrafts within the cloud, they fall to Earth as rain.
If double stranded DNA has 14% (guanine), what percent A (adenine), T (thymine) and C (cytosine) would you expect?
Answer:
If in a double stranded DNA the percentage of guanine is 14%, the percentage of the other bases of the molecule will be 14% for cytosine, 36% for adenine and 36% for thymine.
Explanation:
In the DNA molecule resides all the information of the genome of a living being, according to a specific sequence of nitrogenous bases adenine, guanine, cytosine and thymine. These bases are complemented -purine with pyrimidine- following the rule of base complementarity between one chain and another.
Knowing the percentage that exists of a base, the percentage or proportion of the other nitrogenous bases in a DNA molecule can be determined, approximately, following the rule of Chargaff's base pair.
Chargaff established in his observations that the DNA of a cell has a purine:pyrimidine ratio of 1:1, so there should be an equivalent amount of guanine for cytosin and a similar amount of thymine for adenine, since they are complementary bases.
According to the law of the base pair, if there is 14% in a DNA strand, there will be a 14% in the molecule:
Adenine 36%. Thymine 36%. Cytosine 14%. Guanine 14%. Total ..... 100%This rule applies to both chains, since the percentage of bases in a single chain will depend on the specific sequence of bases it has.
Each step or level of the food chain forms a__________
Answer:
trophic level
Explanation:
Each step in the food web is called a trophic level.
Answer:
trophic level
Explanation:
Cellular respiration is the process that converts
Answer:
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Simplified reaction: C₆H₁₂O₆ (s) + 6 O₂ (g) → 6 CO₂ (g) + 6 H₂O (l) + heat
Explanation:
Answer expert verified.
DESPERATE NEED ANSWER FAST AND BAD WILL GIVE BRAINLIST AND THANKS
During the Paleozoic Era glaciers moved through North American to carve out landforms.
Question 3 options:
True
False
Answer:
True
Explanation:
This is how we have mountains, rivers, lakes, etc.
Have a great day,
PumpkinSpice1
Answer:
This statement is true
Explanation:
HELP NOW
If u can’t see the photo.
remind me so I can help u see to make it better to solve
Answer:
Electron Transport Chain
Explanation:
For aerobic respiration, the electron transport chain or "respiratory chain" is embedded in the inner membrane of the mitochondria (see figure below). The FADH2 and NADH molecules produced in glycolysis and the Krebs Cycle, donate high-energy electrons to energy carrier molecules within the membrane
The Corpus Callosum does what? *
1. Connect left and right hemisphere
2. Hold Broca's area
3. Divide left and right hemisphere
4.Hold Wernicke's area
Answer:
Option 1: Connect left and right hemisphere
Explanation:
The function of Corpus Callosum is to establish communication between the left and right hemispheres of the brain.
Which of the following is considered a key word for the endocrine system?
A: stimulus
B:hormone
C:support
D:transport
Answer:
B. hormone
Explanation:
The endocrine system involves many organ systems and hormones, many of which are still being investigated and understood.
12. If energy must be added to a chemical reaction for the reaction to take place, the
reaction is
A. exergonic
C. endergonic
B. exothermic
D. endothermic
Answer: exergonic
Explanation:
what is meant by reproductive health?what are important nutritional needs of the adolescents?
Answer:
The definition of reproductive health also pointed to the central importance of human sexual relationships, and the fact that they often represent an unequal exchange between women and men.
Explanation:
what is the importance of photosynthesis?
What are the two properties of parenchyma ?
why are transgenic bacteria used to produce insulin? help, please!
Answer:
Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. ... There, the recombinant bacteria use the gene to begin producing human insulin.
Explanation:
A transgenic bacteria can produce insulin if it has the gene that produce insulin.
What are transgenic bacteria?There are bacteria that have been modified genetically.
This bacteria contains gene that have been transferred from other organism into them.
Transgenic bacteria exhibits the traits of the gene that they contain.
Therefore, a transgenic bacteria can produce insulin if it has the gene in it.
Learn more on transgenic bacteria here,
https://brainly.com/question/1668646
What usually happenstance an ecosystem after a sudden catastrophic change?
Please help
Answer:
Succession occurs after sudden catastrophic change.
Explanation:
In communities, organisms occupy specific niches. These gradually evolve over time as these organisms interact with their geosphere. In ecological succession, a community may undergo several dynamic changes. These include primary succession and secondary succession- these communities eventually try to achieve equilibrium over time.
After catastrophic events, the microorganisms, primary succession occurs. Here, a colonizing species exploits a non-habitable region. These eventually make the region more habitable through nutrient cycling, weathering, etc. which ushers in secondary succession. Here, the communities become more complex with time, becoming more varied and an increasingly large food web.
Determine if the statement is true or false. If false, replace the word(s) in bold with the correct word(s) on the line. If true, write "true" on the line.
___________ Bacteria are multiple-celled microscopic organisms.
___________ Bacteria are the most abundant form of life on Earth.
___________ Your digestive tract is home to billions of bacteria.
___________ Vitamins are a type of medication used to kill bacteria.
___________ Common bacterial shapes are rods, spheres, and cones.
___________ Cilia or legs are used for locomotion in some bacteria.
___________ In general, bacteria consist of a nucleus, ribosomes, and a cell wall.
___________ Some types of bacteria can make their own energy through photosynthesis.
___________ Fusion is a form of asexual reproduction where two identical cells are formed from one parent cell.
___________ Some bacteria can exchange genetic material with each other using a thin tube that connects them.
___________ Bacteria can multiply and grow larger quickly.
Scientists think that bacteria evolved around 3.5 billion years ago.
Answer:
False Bacteria are multiple-celled microscopic organisms. True Bacteria are the most abundant form of life on Earth. True Your digestive tract is home to billions of bacteria. False Vitamins are a type of medication used to kill bacteria. True Common bacterial shapes are rods, spheres, and cones. False Cilia or legs are used for locomotion in some bacteria. False In general, bacteria consist of a nucleus, ribosomes, and cell wall. True Some types of bacteria can make their own energy through photosynthesis.False Fusion is a form of asexual reproduction where two identical cells are formed from one parent cell. True Some bacteria can exchange genetic material with each other using a thin tube that connects them.True Bacteria can multiply and grow larger quickly. True Scientists think that bacteria evolved around 3.5 billion years ago.
Explanation:
The fundamental microscopic components of all species are cells. Two groups of cells, Prokaryotes and Eukaryotes, exist. Prokaryotic (meaning pro: before and Karyon: for kernel/nut) identifies species that do not have membranes surrounded by a cell nucleus or other organelles.
Bacteria, thought to have evolved 3.5 billion years ago are types of prokaryotes and are the oldest forms of life on earth. As single- celled life forms, they take on various shapes (rods, cones, spheres, spirals) and are capable of reproduction through asexual binary fission, and exchange genes in horizontal gene transfer (conjugation, transduction etc) and cell fusion .
They live in communities and, grow exponentially in number over short periods of time. Some are autotrophs, capable of producing their own food through photosynthesis. Some species can move around using flagella, long whip-like projections from the cell.
In humans, bacteria have colonized the intestinal tract. While some are beneficial as part of the microbiome, others are disease-causing pathogens- these are typically eliminated via the use of antibiotics.
The statements can be True or False as:
1. The given statement is False. Bacteria are single-celled or unicellular prokaryotic organisms.
2. The given statement is true. Bacteria are the most abundant forms of life on earth, such that they are found in extreme temperatures.
3. The given statement is True. The digestive tract is composed of billions of bacteria, which help in the breakdown of molecules.
4. The given statement is False. The vitamins are nutritive substances, which can cause deficiency diseases.
5. The given statement is True. The bacteria exist in different forms and shapes, such as rods, cones, and spherical.
6. The given statement is False. Flagella are the filamentous structures used for locomotion.
7. The given statement is False. The bacteria are prokaryotes and lack membrane-bound organelles like the nucleus, ribosomes, and mitochondria.
8. The given statement is True. The bacteria such as cyanobacteria perform photosynthesis.
9. The given statement is False. The bacteria reproduced through binary fission or conjugation.
10. The given statement is True. Conjugation or transduction is a process through which bacteria exchange genes.
11. The given statement is True. The bacteria grow exponentially and multiply at a very fast rate.
12. The given statement is True. The origin of bacteria dates back to 3.5 million years ago.
Thus, the bacteria are prokaryotic organisms, which are found at extreme temperatures and undergo asexual reproduction.
To know more about bacteria, refer to the following link:
https://brainly.com/question/2490932
If a mother has an AB blood type and her daughter has BB blood type, The dad has AA blood, the mailman has type AO blood and the neighbor has BO blood. Which one is really the father?
the dad
the mailman
the neighbor
none of them
Describe how the available energy in the marine ecosystem of the pacific northwest could be different than that of the african savanna
The available energy in the African savanna is Higher than the available energy in the Marine ecosystem
The African savanna is located closer to the Equator and maintains a temperature of around 20 to 30° C due to the availability of enough sunlight reaching the soil and the vegetation found in the African savanna. also there is enough rainfall all year round.
The availability of sunlight and rainfall year round makes the energy levels in the African savanna higher than the energy available in Marine ecosystem.
The Marine ecosystem which consists of Freshwater water and salt water bodies have less sunlight penetrating through them and this negatively affects the available energy ( chemical / heat ) present in the marine ecosystem.
Hence we can conclude that The available energy in the African savanna is Higher than the available energy in the Marine ecosystem.
Learn more : https://brainly.com/question/20608815
Need a answer
Summarize how parts of the immune system work together
Why can’t kinetic energy ever be greater than potential energy? _________
Answer:
Because kinetic energy will never be more than potential energy, When they move, they can lose energy to friction which creates heat and noise.
Explanation:
5.
Both Mars and Venus have a greenhouse effect as well. What are the problems with each of these planets?
Answer:
y
Explanation:
you see when mars gets warm usually mars is hot and cold so that is the green house effect on mars . venus is hot but when it's volcanoes stop erupting it cause certain changes
Recalling a memory is most like:
A. reconstructing pieces of information.
B. creating new long-term potentiation.
C. "playing back" a stored file.
D. watching a movie of still images.
A. reconstructing pieces of information.
I think this is the answer
A concentration gradient is a ____ of concentrations between two regions.
Answer:
solute
Explanation:
A concentration gradient is a CHANGE of concentrations between two regions.
Diffusion is the movement of a substance from an area of higher concentration to an area of lower concentration.
Passive transport refers to a type of transport across biological membranes in favor of a concentration gradient.
This movement (passive transport) is facilitated by membrane proteins known as carriers.
In conclusion, a concentration gradient is a CHANGE of concentrations between two regions.
Learn more in:
https://brainly.com/question/1619908?referrer=searchResults
Where are chlorofluorocarbons found?
A) coolants
B) the atmosphere
C) solvents
D) all of the above
Please select the best answer from the choices provided
Answer: D.all of the above.
Explanation:
Answer:
D
Explanation:
Imagine a population of rabbits in which most of the rabbits are brown all
year. Then a mutation occurs, and one rabbit is born with a coat that turns nearly white in the winter. How might this white coat present an advantage to the rabbit?
A. The white coat would help the rabbit hide from predators when
snow fell during the winter.
B. The white coat would help the rabbit stand out against the greens
and browns of summer foliage.
C. The white coat would help the rabbit attract a mate more easily
than a brown coat.
D. The white coat would help the rabbit stay warmer than a brown
coat
Answer:
A
Explanation:
PLEASE HELP!!!
Which of the following would be considered the best index fossil?
Gastropod
Fern
Ammonite
Coral
Answer:
CORAL
Explanation:
idk
Answer:
Ammonite is the answer
What part of a schools does the same job as the endoplasmic reticulum?
Answer:
School Buses
Explanation:
The endoplasmic reticulum is the transport system of the cell. The school bus is the transport system of the school.
BRAINLIST PLEASE HELP ME
which one is green shale
Tilting,
Erosion,
Folding
Answer:
Folding
Explanation:
Which of the following is a function of the nucleus
1. storage of DNA
2. controls most of the cells processes
3. contains the information needed to make proteins.
4. all of the above
Answer:
All of the above
Explanation:
The nucleus contains genetic code for the functions of all of your organelles. It controls your cell processes and has the information the make proteins.
If a cell has 46 chromosomes and undergoes mitosis, how many chromosomes will the resulting cells have
Answer:
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.
Explanation:
The location of any electron in an atom can be described by
unique quantum numbers.
Answer:
Principal,subsidiary,magnetic,and spin quatum numbers
The given statement "The location of an electron in an atom can be described by unique quantum numbers." is true.
Quantum numbers, a series of specific numbers to describe the location of an electron of a particular atom. Quantum numbers define the features of the atomic orbitals and the electrons filled in those orbitals.
An electron in an atom or ion has four quantum numbers to describe its state are principal quantum number, azimuthal quantum number, magnetic quantum number, and spin quantum number.The electrons filled in the associated atom in the order of increasing energy of orbitals.1s 2s 2p 3s 3p < 4s <3d <4p < 5s < 4d <5p < 6s <45 < 5 < 6p...
Principal quantum number: explains the energy level of an electron. It is denoted by n. Azimuthal quantum number: explains the sub-shell of an electron. It is denoted by l. Magnetic quantum number: explains the energy levels of the sub-shell of an electron. It is denoted by -[tex]m_{l}[/tex]. Spin quantum number: explains the spin of an electron. It is denoted by [tex]m_{s}[/tex].Thus, the correct answer is - the statement is true.
Learn more about the Pauli exclusion principle:
https://brainly.com/question/3454051
