Answer:
Explanation:
A prokaryotic cell is a type of cell that does not have a true nucleus or membrane-bound organelles. Organisms within the domains Bacteria and Archaea are based on the prokaryotic cell, while all other forms of life are eukaryotic
A prokaryotic is a primitive cell that lacks organelles, unlike the eukaryotic cells, and are simple organisms.
What are prokaryotes?Prokaryotes are organisms that are simple and evolved before the complex eukaryote. They include bacteria and archaea that are simple and lack organelles that are found in eukaryotes.
They do not have a nucleus and rather have their genetic material disposed of as nucleoids in the center of the cell that undergoes the simple process of the central dogma.
The simple cellular processes and reproductive methods are the reason they lack many organelles. This tells that prokaryotes are simple and primitive types of cells.
Therefore, prokaryotes lack a distinct nucleus.
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SOMEONE PLZ HELP!!!!!!!!!!!!!!!
Answer:
A
Explanation:
A blonde woman uses dye to change her hair color to red;
however, her children WILL NOT INHERIT this red hair color because the
woman does NOT have *
O A) genes for red hair in her skin.
O B) proteins for red hair in her stomach cells.
O C) proteins for red hair in her brain.
D) genes for red hair in her gametes.
Answer:
D
Explanation:
Answer:
D, genes for red hair in her gametes.
Explanation:
Because of the genetics. unless a family member or the father has red hair, in any relation (not including dye) then the children will not inherit the hair.
3. When a single-celled organism splits into 2 new organisms it is called _________________. *
a.fission
b.budding
c.fragmentation
d.sporulatioin
Answer:
When a single-celled organism splits into 2 new organisms it is called fission.
When a single-celled organism splits into 2 new organisms it is called fission. Therefore, option (A) is correct.
What is binary fission?In biology, fission is the split of a single organism into two or more pieces, followed by the regeneration of those parts into new, distinct organisms that resemble the original. Cells are often the thing that undergoes fission, although the phrase may also describe how creatures, bodies, populations, or species divide into distinct sections.
Asexual reproduction in bacteria occurs via a mechanism called binary fission. A single organism splits into two separate ones during binary fission. The duplication of organelles in eukaryotes is sometimes referred to as binary fission.
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Which statement about a catalyst is correct?
1) A catalyst slows down a chemical reaction.
2) A catalyst speeds up a chemical reaction.
3) A catalyst has no affect on a chemical reaction.
Answer:
choice 2
Explanation:
because the catalyst reduces the activation energy of the reactants so the reaction then requires lower energy to occur then the reactents reach that energy in shorter time so the reaction takes shorter time .
Are all nerve cells are connected to the brain?
Answer:
yes
Explanation:
Answer: Is the brain made up of nerve cells?
The brain is what it is because of the structural and functional properties of interconnected neurons. The mammalian brain contains between 100 million and 100 billion neurons, depending on the species. Each mammalian neuron consists of a cell body, dendrites, and an axon.
Explanation: Have a blessed day!
If the weather in Richmond, Virginia suddenly changed to very cold (snow on the
ground 8 months of each year) over the next few years, what change might possibly
occur in the squirrel population there?
A) Natural selection would cause a new genotype to appear in the population,
resulting in squirrels with white fur.
B) The cold weather would cause a mutation in squirrels which causes their fur
to be white.
C) Natural selection would not permit such climatic changes.
D) Evolution would definitely occur resulting in white squirrels.
E) If a mutation happened to occur which caused white fur to develop, such
white squirrels would have a better chance to survive and produce more
offspring with the characteristic.
Answer:
E) If a mutation happened to occur which caused white fur to develop, such
white squirrels would have a better chance to survive and produce more
offspring with the characteristic.
Explanation:
Which codon is the code for the amino acid serine (Ser)?
Messenger
Second base in codon
RNA Codons
U
С
A
G
UUU
Phe
UCU
UAU
UGU U
UUC UCC UAC
Tyr
UGC
Cys
U
Ser
UUA 1
Leu
UCA UAA Stop UGA Stop A
UUG UCG UAG Stop UGG Trp G
CUU CCU CAUT CGU U
His
CUC ССС САС! CGC
Leu
Pro
CUA CCA CAA CGA
Gin
CUG CCG CAG CGG
AUU ACU AAU
As
AGU
Ser
AUC lle ACC
ААС! AGC
A
Thr
AUA ACA
AAA
Arg
AUG startet ACG AAG AGG
GUU
GCU
GAU
Asp
GGU
U
GUC GCC
GAC
GGC
G
Val
Ala
GUA
Gly
GCA
GAA
Glu
GGA
A
GUG GCG GAG
GGG
Arg
First base in codon
이이이이이드
Third base in codon
OPOCO POCO Blocos
Lys AGA
A. AGU
B. UGA
C. AGG
D. AGA
No
Answer:
four codon in mRNA sequence code for serine aminoacid.
Explanation:
UCA
UCG
UCC
UCU
these four codons code for aminoacid serine.
Which of these mechanisms exerts gene control by suppressing transcription in eukaryotes?
A. Acetylation of histone proteins
B. Methylation of DNA
C. Action of activator proteins
Answer:
Its B. Methylation of DNA I just took the test.
Explanation:
If Earth was like a hardboiled egg, which part of Earth would the egg white represent?
Mantle, as its depth is less than 2,900 kilometers
Core, as its depth is less than 2,900 kilometers
Mantle, as its depth is up to 6,500 kilometers
Core, as its depth is up to 6,500 kilometers
Answer:
The Mantle, as it's depth is less than 2,900 Kilometers.
Explanation:
Answer:
The Mantle as it's depth is less than 2,900 Kilometers.
Explanation:
Orms of obvious, overt prejudice, which are considered inappropriate by most social standards today, are sometimes called:________.
Answer:
Discrimination
Explanation:
Discrimination of prejudice refers to the act of treating a person or people in a way that is wrong, unlawful, and inconsistent with the generally accepted moral standards just because they are different especially with respect to age, nationality, gender, etc
There are two categories of discrimination:
Overt and Covert.Discrimination or prejudice is over when those who practice it are unafraid to make their thoughts and actions public. Many times this is so because the society in which they live condones such behavior and because there are no repercussions, they bold to make their unjust acts public. For example, name-calling, intentional rejection of job applications, etc.
Covert refers to using the system or giving logical reasons for discriminatory behavior. This is more subtle. For example, an employer may say they are not taking females due to the prerequisites of the job. Refusing "nicely" to be treated by a person of color in a hospital is another example.
Covert aggression of prejudice is often masked and occurs where the laws are relatively stiff on those who practice them. Also, a society that is evolving from largely prejudicial to less discriminatory will see more covert forms that overt forms of discrimination because those who practice overt prejudice are bold because they know that there are many more who think like them.
Cheers!
Which of the following statements correctly describes a difference between plant cells and animal cells?
2 points
A. Plant cells have an envelope surrounding the nucleus. Animal cells do not.
B. Animal cells contain mitochondria. Plant cells do not.
C. Animal cells contain chloroplasts. Plant cells do not.
D. Plant cells are surrounded by a cell wall. Animal cells are not.
Answer:
D
Explanation:
plant cells are the only kind of cell to have cell walls
The statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
Both plants and animals are eukaryotic organisms, which means that their cells have nuclei and contain membrane-bound organelles.Plant cells contain an organelle known as chloroplast, which is used by these organisms during photosynthesis. Moreover, the plasma membrane of plant cells is surrounded by a cell wall that provides structural support to their cells.In conclusion, the statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
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In rigor mortis, muscle tissue becomes locked in position because myosin heads are tightly attached to neighboring actin thin filaments. This lock-up is prevented in living muscle because ordinarily myosin is rapidly displaced from the thin filament by:_________.A. binding of a new molecule of ATP B. hydrolysis of ATP C. release of ADP after ATP hydrolysis D. release of phosphate after ATP hyrdolysis
Answer:
The correct answer is option A. binding of a new molecule of ATP.
Explanation:
Actin and myosin are complementary filaments present in muscle, actin is thin and myosin is a thick filament, these two filaments are responsible for the movement by muscle contraction and relaxation. Actin and myosin head shows great affinity towards one another.
Myosin heads are tightly attached to neighboring actin thin filaments due to its affinity to actin, however, myosin at other pockets also show a huge affinity for ATP. If myosin is bound to actin the affinity for ATP is changed and if new ATP bounds to the empty pockets it changes the conformation of myosin and prevents lockup or binding of the actin-myosin protein.
Try reducing the level of fossil fuel percentage increase and decrease deforestation by 1 GT per year. Predict what will happen to the atmospheric carbon levels and record it in your Data Table. Run the simulation to test your hypothesis. Were you correct? Were you surprised by the result? What about your result surprised you?
Answer: The atmosphere can handle almost 700 billion tons of carbon in it. The carbon levels are increasing due to industrial revolution.
Explanation:
The overload of the emission of carbon in the atmosphere surprised me. The data was recorded and investigated for 2000 to 2100. Different parameters like ocean water and fossil fuel. The fossil fuel when burn contribute to the release of carbon monoxide and carbon dioxide gas. The oceanic water release the decomposed carbon dioxide by calcium carbonate of coral reefs and respiration of aquatic animals.
Which statement describes the motion of the water molecules in this situation
Answer:
im confused, what am i supposed to solve?
Explanation:
im ready to answer, but i dont know what im supposed to solve
In humans, earlobes that are suspended (detached) are dominant over those that are attached. If a mother has suspended earlobes (but her mother did not) and the father has attached earlobes, what are the chances that their first child will have attached earlobes?
Answer:
i would say it is a 50/50chance
Explanation:
i will mark u brainliest!!! What is on the biology module 3 dba? pleasee only leave real answers im struggling lol.
Answer:
WHat school?
Explanation:
FLVS: What are mutations and how do they occur? Explain their effects on organisms.
Explain how DNA is involved in creating genetic variation within a species. Is this considered a mutation, if so why?
Describe how you can use a Punnett square to predict the probability that offspring will inherit a trait. Provide explanations of genotypes and phenotypes.
Compare mitosis and meiosis. What type of cells are created through mitosis and meiosis and what is the function of each? What makes these processes vital to our survival?
Summarize how protein molecules are made through transcription and translation. Where do these processes take place?
What is genetic engineering? Provide an example of a positive example of genetic engineering technology and its impact on health and genetics.
These should be the questions.
They might be different for you
Characteristics of marchantia
Answer:
Dark green Marchantia gametophytes (sexual plants) are branched and ribbonlike, about 1.3 cm (0.5 inch) wide and 5 to 13 cm long. The diamond-shaped markings on their upper surfaces, signs of interior air chambers, have a central pore through which air diffuses.
Explanation:
he diploid zygotes develop into sporogonium or sporophyte. The sporophyte is differentiated into the foot, seta, and capsule containing numerous sporogenous cells, which by meiosis cell divisions forms the tetrad of haploid spores that represent the first gametophytic stage.
Which of the following best describes the Earth's crust?
Answer:“Crust” describes the outermost shell of a terrestrial planet. Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics. “Crust” describes the outermost shell of a terrestrial planet
Explanation: did the test in 7th grade and got in correct
Answer:
Thinnest under oceans and thickest under continents
Organisms that must get there energy from food or other living things are
called:
zenotrophs
heterotrophs
autotrophs
plants
Answer:
b
Explanation:
heterotrophs animal
please help me with this question:)
Answer:
It is a cell wall
Explanation:
true or false? all elements are compounds
how do you think the system used to organized where people live is similar to how your body is organized?
If a flower is not pollinated what will happen?
Answer:
Will die?
Explanation:
which best describes the results of mendels work with pea plants a) he figured out the fastest way to grow pea plants. b) he showes that pea plants do not pass traits to their offspring. c) he found the basic ideas about genetics. d) he discovered the scientific method.
Answer:
its C
Explanation:
Which of the following statements are accurate about Earth’s spheres?
SELECT ALL THAT APPLY.
A - earth’s spheres depend on each other
B - to maintain equilibrium, energy and mass is transferred between spheres
C - earth’s spheres support each other
Answer:
Option A, B and C.
Explanation:
The Earth spheres make up the components of the Earth and it comprises of both living and non living things.
The Earth spheres(hydrosphere, biosphere, atmosphere) are interconnected with each other. A change in a sphere can also in one way of the other influence change on the others. Interactions occur among the spheres I .e energy can be harness from one sphere to another.
For example birds can fly from biosphere to hydrosphere to obtain water. Their interactions cause or drive all the processes of the Earth which is an indication that they are connected to each other and react with each other.
Statements that are true as regards Earth’s spheres are;
A - earth’s spheres depend on each other
B - to maintain equilibrium, energy and mass is transferred between spheres
C - earth’s spheres support each other
There are four spheres that can be attributed to the Earth, and all these sphere are depend on each other. They are lithosphere, hydrosphere, atmosphere as well as biosphere. The lithosphere is the part that has solid rock, soil in it, to maintain equilibrium, there is usually transfer of mass and energy among the sphere.Therefore, all options are correct.
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Which process do seeds undergo under favorable conditions?
elogation
fertilization
pollination
germination
Answer:The answer is Germination
Explanation: I took the test
A repressor prevents
a. translation from occurring.
b. ribosomes from binding to mRNA
c. transcription factors from binding to DNA
During transcription, DNA is made into a molecule of _________________ which will travel to the ___________________ in the cytoplasm, Here, three bases, called a ________________ will determine what __________________ acid is added to the chain. This chain will fold into a _______________________________.
The answers to the blank spaces in the question are as follows:
mRNARibosomeCodonAminoProteinGENE EXPRESSION:Transcription is the process by which DNA template is used to synthesize a mRNA molecule. The mRNA molecule leaves the nucleus of the cell and transports to the ribosomes in the cytoplasm where the process of translation takes place. The mRNA is read in a group of three nucleotide bases called codons. Each codon specifies an amino acid. The amino acid, which are building blocks of proteins will undergo folding into a protein molecule.Learn more about gene expression at: https://brainly.com/question/3533860?referrer=searchResults
The answers to the blank spaces in the question are as follows mRNA, Ribosome, Codon, Aminoacid and Protein.
What is transcription?
Transcription is the procedure by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).
DNA safely and stably stores genetic material in the nuclei of cells as a template.
Thus, the following are the correct answers.
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Contribution of prophase stage of mitosis cell division to growth of plant
Answer:
It helps organisms grow in size and repair damaged tissue some species of algae are capable of growing very quicklyExplanation:
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Please select the word from the list that best fits the definition
process in which liquid turns to vapor
Answer:
i think its vapporization
Answer:
evaporation
Explanation:
its the process in which water gets heated up to a point where it turns into steam or vapor