For four o'clock flowers, flower color is a case of incomplete dominance. The gene for flower color has two alleles: red (R) and white (r). What is the percent probability that one offspring from a parent with red flowers and a second parent with white flowers will have the genotype rr? Use a Punnett Square to figure out the likelihood.
Answer:
0%
Explanation:
The question is about a gene coding for flower colour in four o'clock plants. The alleles exhibit incomplete dominance i.e the allele for red color (R) is incompletely dominant over the allele for white color (r), hence, an heterozygous intermediate phenotype, which has a pink color, is produced when both alleles combine i.e. Rr.
A parent with red flowers will possess a genotype: RR while a parent with white flowers will possess a genotype: rr. When both parents are crossed using a punnet square (see attached image), all possible offsprings will possess a pink heterozygous phenotype with genotype Rr.
Therefore, the percentage probability of producing an offspring with genotype: rr is 0% since it is not possible considering the parent's genotypes.
Which pair of terms best describes a wooden table?
biotic and nonliving
biotic and living
abiotic and nonliving
abiotic and living
Answer:
Biotic and non-living
Explanation:
=> Since it can't move,respire, ingest or reproduce , it is a non-living thing.
=> It is a component derived from the living part of an ecosystem(A wooden tree), so it is a biotic component.
If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result? Less water would be available on Earth’s surface. Less solar energy would reach Earth’s atmosphere. More oxygen gas would be found in Earth’s atmosphere. More carbon dioxide gas would be found in Earth’s atmosphere.
If photosynthetic organisms are decreasing on Earth there is no consumption of carbon dioxide, hence option 4 is correct.
How much carbon dioxide Earth’s atmosphere?The amount of oxygen in the atmosphere will likewise decrease as the number of photosynthetic species rises.
More carbon dioxide gas would be found in the atmosphere because forests, especially rainforests, create more oxygen. The development of oxygenic photosynthesis was the most significant metabolic advancement in Earth's history.
It liberated life from the finite supply of reductants drawn from geochemistry and allowed it to create energy and reduce power directly from sunshine and water.
Therefore a decrease in photosynthetic organisms increases the carbon dioxide gas in Earth’s atmosphere.
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Which characteristics of bacteria help them infect other organisms? Check all of the boxes that apply. Bacteria reproduce quickly. Bacteria have a protective layer called a capsule. Bacteria can evolve quickly because they can pass on genetic information. Bacterial infections cause symptoms that transfer the bacteria to new hosts.
Answer:
Bacteria reproduce quickly.
Bacteria have a protective layer called a capsule.
Bacteria can evolve quickly because they can pass on genetic information. Bacterial infections cause symptoms that transfer the bacteria to new hosts.
Explanation:
Bacteria are an example of pathogenic microorganisms which infects other cells in order for its survival and reproduction.
They are capable of reproducing quickly and they have protective layer called a capsule protects them from harsh conditions. They can evolve quickly because they can pass on genetic information and their infections cause symptoms that transfer the bacteria to new hosts.
Answer:
1, 2, 3, 4
Explanation:
If Earth was not spinning, there could still be a ____.
A. diurnal cycle
B. seasonal cycle
C. Hadley cell
D. Ferrel cell
If Earth was not spinning, there could still be a seasonal cycle. The correct option is B.
What is seasonal cycle?A hemisphere experiences winter and longer nights as it is tilted away from the Sun. A hemisphere experiences summer and longer days when it is inclined toward the Sun.
The duration and structure of daylight are largely constant at the equator.
The seasons are caused by Earth's tilted axis. Different regions of the Earth are exposed to the Sun's strongest rays at various times of the year.
Therefore, the Northern Hemisphere experiences summer when the North Pole tilts toward the Sun.
Seasonality describes regular cycles and changes in specific commercial sectors that depend on a specific season.
A season can refer to either a commercial season, like the Christmas season, or to a calendar season, such the summer or winter.
Thus, the correct option is B.
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Which question can be answered by science? A. Should the government be regulating the use of grocery bags? B. Is it O. K to force people to recycle their grocery bags? C. When is the most enjoyable time to go grocery shopping? D. How much energy does it takes to make a paper bag?
Answer:
How much energy does it takes to make a paper bag
Explanation:
Answer:
D
Explanation:
A, B, and C are not correct because an answer to these question could be counted as an opinion. Although you can support your opinion using science, the answer will be an opinion and not science.
D is the answer because you can find out the answer using science and mathematics. The answer to this question would not be considered opinion.
You are analyzing an organism
found in a deep ocean survey.
You believe it is a new species,
but to be sure, you must classify
it first. It appears to have
threadlike root structures. It
cannot move, and sprouts from
the bottom of the ocean floor. It
is clearly multicellular. Light or
dark conditions have no effect on
its growth. What group fits it
best?
A. Fungi
B. Eubacteria
C. Protista
D. Plantae
Answer:
The answer is C Protista.
Explanation:
D can’t be since light or dark has no effect on it, B can’t be since it multicelular, and A can’t be since it has the threadlike roots
An organism found in deep oceans. It cannot move, sprouts from the bottom of the ocean floor, and is clearly multicellular. The group is the best fit for protists. The correct option is C.
What are protists?Protists are multicellular organisms. They are a separate kingdom, that is different from plants, animals, and fungus. They are eukaryotic organisms and are present in land and water.
Examples are algae, amoeba, plasmodium, slime molds, etc.
They are heterotrophs, saprophytes, and autotrophs. Some organisms engulf their food by the membrane of the body, like an amoeba, and paramecium.
They have a resemblance to bacteria, plants, and fungi. They were before categorized into a separate kingdom.
Thus, the correct option is C. Protista.
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When oxygen first was released in the early seas it combined with iron to form
A)RNA
B)DNA
C)proteins
D) DNA molecules
A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolution?
Answer:
The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.
Explanation:
This is supporting evolution because it shows that the structure of the whale is changing over time.
What prediction can you make from the diagram shown below? Image depicts four very similar birds with slight variations in the shapes of their beaks. All of these birds share a common ancestor. All of these birds adapted to the same conditions. All of these birds developed at exactly the same time. All of these birds produced identical offspring.
Read the passage from Darwin's journal. These two species of Amblyrhynchus agree, as I have already stated, in their general structure, and in many of their habits. Neither have that rapid movement so characteristic of the genera Lacerta and Iguana. They are both herbivorous; although, the kind of vegetation on which they feed is so very different. Mr. Bell has given the name to the genus from the shortness of the snout; indeed, the form of the mouth may almost be compared to that of the tortoise: one is led to suppose that this is an adaptation to their herbivorous appetites. It is very interesting thus to find a well-characterized genus, having its marine and terrestrial species, belonging to so confined a portion of the world. The aquatic species is by far the most remarkable because it is the only existing lizard which lives on marine vegetable productions. As I at first observed, these islands are not so remarkable for the number of the species of reptiles; as for that of the individuals, when we remember the well-beaten paths made by the thousands of huge tortoises—the many turtles—the great warrens of the terrestrial Amblyrhynchus—and the groups of the marine species basking on the coast-rocks of every island—we must admit that there is no other quarter of the world where this order replaces the herbivorous mammalia in so extraordinary a manner. What differences did Darwin find about the two species? One is fast, while the other is slow. One eats plants, while the other eats meat. One lives inland, while the other lives in the water. One has a long snout, while the other has a short snout.
Answer:
One lives inland, while the other lives in the water.
Explanation:
Amblyrhynchus cristatus is a marine reptile that lives in the Galápagos Islands. This species attracted the attention of Darwin because it is a marine iguana that lives exclusively in the Galapagos and, interestingly, their close relatives inhabit in land, also in the Galápagos Islands. The marine and land iguanas from Galápagos form a phylogenetic clade that is characterized by high diversification levels, which are evidenced by conspicuous phenotypic differences. These species can hybridize with each other, but the offspring are infertile. Recently, it has been shown by using phylogeographic analysis that both species diverged 8-10 million years ago.
Answer:
They both eat plants.
Explanation:
They are both herbivorous; although, the kind of vegetation on which they feed is so very different.
Which element is less electronegative than barium (Ba)?
The Periodic Table
O A. Lead (Pb)
O B. Radon (Rn)
O C. Beryllium (Be)
D. Cesium (Cs)
Answer:
cesium
Explanation:
cesium has 0.79 electronegativity and barium has 0.89. All other element have electronegativity higher than that of barium
Light-dependent reactions
Light-independent reactions
Sun's energy absorbed
Sugars produced
Answer:
The question is unclear but I suppose we're to match the stage of photosynthesis with it's description below.
Light-dependent reactions- Sun's energy absorbed
Light-independent reactions- Sugars produced
Explanation:
Photosynthetic process involves two main stages viz: light dependent stage and light-independent stage. In the light dependent stage, light energy from the sun is trapped or absorbed by the Chlorophyll pigment of green leaves. The absorbed energy is used to split water in a process called PHOTOLYSIS OF WATER.
This process (photolysis) releases protons that build up in the thylakoid membrane to produce a proton pump that generates ATP. At the end of the light dependent reactions, ATP and NADPH molecules are produced.
In the light independent stage which occurs in the stroma of the CHLOROPLAST, the ATP and NADPH molecules produced in the light stage are used to power and reduce carbondioxide (CO2) to synthesize sugar (glucose).
What happens in the G2 phase of the cell cycle?
Answer:
A. Prepares for cell division
Explanation:
The S phase is when the DNA divides, so B is incorrect.
The post mitotic phase (G0 phase) happens before the cell divides, so C is incorrect.
Put the steps of enzyme activity in order from first to last using the drop down menu beside each step. The chemical reaction occurs. A substrate enters the active site of enzyme. New substances called “products” are formed. The enzyme and the substrate bind to form the enzyme-substrate complex.
Answer: 1) b
2)D 3)A 4)C
Explanation: hope that helps!
help pleasssssssssssssssssssssssssse
Answer:
6.) Centi - one hundredth (1/100)
7.) Mega - one million ( x 1,000,000)
8.) Milli - one thousandth ( 1/1,000)
9.) Micro - one millionth ( 1/1,000,000)
10.) Kilo - one thousand ( x 1,000)
Hope this helps you
*ANSWER PLS* What is one possible effect in humans of microbiological pollution? a.) heart disease b.) ecosystem destruction c.) cholera d.) eutrophication
Cholera is one possible effect in humans due to microbiological pollution. The correct option is c.
What is cholera?Cholera is a severe diarrheal condition caused by a Vibrio cholerae bacterial infestation of the intestine.
People can become ill if they consume cholera-contaminated food or water. The infection is frequently mild or without symptoms, but it can occasionally be severe and life-threatening.
Cholera is one possible effect in humans due to microbiological pollution.
Thus, the correct option is c.
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___ competiton drives natural selection, as individual members of a species compete with each other for limited natural resources.
The
fishing of the species led to a decrease in its population. In which two ways will this affect the food web?
The higher levels in the pyramid will receive more energy.
The higher levels in the pyramid will receive less energy.
The lower levels in the pyramid will have less predation.
The higher levels in the pyramid will receive no energy at all.
The lower levels in the pyramid will receive less energy.
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Answer:the lower levels will receive less energy, and the higher levels will receive no energy at all.
Explanation:
Nothing happens to the higher levels besides not getting preyed upon, and the lower levels get less food
Which of the following structures would normally be found in a plant cell but not in an animal cell? A. cell wall B. cell membrane C. nucleus D. vacuoles
Answer: A) Cell wall
Explanation:
Please note that because it says normally not in an animal cell, the answer may be vacuole, which are rarely in animal cells. However, because cell walls are never found in animal cells, I went with that.
Hope it helps <3
Answer:
Cell Wall
Explanation:
Animals have only cell membrane due to which they move but Plants have cell wall due to which they don't move
plz help!!
need explanation
Will give the brainliest!
Time PeriodA- Sleeping
Time PeriodB-Walking
Time Period C- Running
Time Period D-Walking
Time Period E- Frightened by a loud Noise
Explanation:
The question is asking you to label the time periods shown with the activity that represents the heart rate of the person.
Your heart rate is lowest when you're sleeping because your body is not exercising or under any stress
When you're walking your heart rate will steadily go up but not as high as running because running requires more work and physical strain than walking
Your brain is under extreme stress when you are startled by a loud noise which causes a spike in heart rate.
Answer:
The answer is a
Explanation:
It is not b because when someone is frighented by a sudden loud noise the heart rate will be very pointy.
Not c either because sleeping makes your heart rate very low.
Not d because waking make your heart rate increase (about 90 beats per minute) but then stay in the same rate.
So probably a because running increases your heart rate at a very big level for a long time but then it drop when you stop.
Hope this helps!
How is the endosymbiotic theory used to support the emergence of eukaryota
Answer:
It involves a cooperative relationship between two cells
Explanation:
allow both to survive—and eventually led to the development of all life on Earth.
I need help on this question will give brainly points must be right.
Answer:
3
Explanation:
The answer is three, I just did it
Which cell organelle is most directly involved with the bonding of amino acids?
A) mitochondrion
B) endoplasmic reticulum C) cell wall
D) ribosome
Ribosome is the cell organelle that is most directly involved with the bonding of amino acids
RIBOSOME:
Ribosome is an organelle found in both eukaryotic and prokaryotic cells. It is the organelle involved with the synthesis of proteins in living cells. This is because the process of translation i.e. synthesis of proteins from mRNA occurs in the ribosome. Proteins are macromolecules formed from the joining together of series of amino acids via a peptide bond. This means that amino acids are bonded to form proteins. Since, ribosomes are the organelles for protein synthesis, hence, it is the cell organelle that is most directly involved with the bonding of amino acids.Learn more: https://brainly.com/question/241631?referrer=searchResults
The source of ATP and NADPH, which are required to synthesize glucose, is a
A) light independent reaction: glucose breakdown and carbon dioxide
B) light dependent reaction: electron transport and the splitting of water
C) light independent reaction: electron transport in the splitting of water
D) light dependent reaction: RuBP and the splitting of water
Answer:
B) light dependent reaction: electron transport and the splitting of water
Explanation:
The source of ATP and NADPH, which are required to synthesize glucose is a light-dependent reaction.
During the process of photosynthesis, light energy is required to tranport electrons that produces ATP and NADPH and splitting of water, generating O2.
Photosystem I (PSI) absorbs the light energy and electrons supplied from PSII (Photosystem II) are transferred to the protein ferredoxin, which further donates electrons to electron transport chain that produces ATP and to the electron carrier NADP+ to form NADPH.
Hence, the correct option is B.
HEEELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
30. L
31. R
32. R
33. L
34. L
Answer:
[tex]30)\blue{100cm = 1m}[/tex]
[tex]\boxed{\blue{ = L}}[/tex]
[tex]31)\green{1Mm = 1000000m}[/tex]
[tex]\boxed{\green{ = R}}[/tex]
[tex]32)\pink{1km = 1000000mm}[/tex]
[tex]\boxed{\pink{ = R}}[/tex]
[tex]33)\purple{1000micro \: \: \: meter} \\ \purple{ = 1mm}[/tex]
[tex]\boxed{\purple{ = L}}[/tex]
[tex]34)\red{1000000mm = 1km}[/tex]
[tex]\boxed{\red{ = L}}[/tex]
what is apple plus a banana it's really hard only big brain get it
Answer:
Panana is the answer buddy
In an electron microscope, the sample is bombarded with a stream of electrons that are expelled from an electron gun. The electrons interact with the sample component, the result of which is transformed into an image. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Answer:
It is because the electron microscope uses a shorter wavelength electron
Explanation:
In an electron microscope the sample is always bombarded with a stream of electrons. These electrons usually have shorter wavelengths.
The electrons interact with the sample component well, the result of which is transformed into an image which is always clearer and allows for greater magnification than the compound microscope as a result of the short wavelength electrons being used.
Answer:
Due to the shortened wavelength electron it causes a greater magnification than compund microscopes.
In exocytosis, the membrane package fuses with _____.
the cell membrane
the nucleus
a gap junction
a transport protein
Answer:
the cell membraneExplanation:
In exocytosis, the membrane package fuses with the cell membrane.
[tex]hope \: this \: helps[/tex]
Categorize Different Foods Categorize the food items below by selecting which macromolecule they are known to contain. apple steak celery olive oil potato avocado egg
Answer:
The correct categorization of the listed food items would be:
Carbohydrate: apple, celery, potato
Protein: Steak, egg,
Fat: Olive oil, avocado.
The four major macromolecules are carbohydrates, proteins, lipids, and nucleic acids.
Foods like apple, celery, and potato are rich in carbohydrates.
Foods like chicken, meat, eggs, et cetera are rich in proteins.
Similarly, foods like olive oil, mustard oil, butter, et cetera are rich in fats or lipids.
Explanation:
Answer: apple- carb; steak- protein; celery- carb; olive oil- lipid; potato- carb; avocado- lipid; egg- protein
Explanation:
Fruit and veggies are mainly made of carbohydrates because that is the storage and structural components they use (think glucose, cellulose, starch, etc.); Steak is a meat, and meat is technically muscle- muscle is built from protein; Olive oil and avocado are lipids because they are considered fats; Egg is protein because it is an animal by-product, and contains many amino acids, which build up proteins.