Answers
Banded iron formations probably were formed in sea water as a result of photosynthetic cianobacteria doing photosynthesis. Almost all of those formations are fof Precambrian age, and it is thought that after the period of its formation there were no oxygen pentiful available and this process would have recorded the oxygenation of the Earth's oceans. Therefore, the correct answer is C. oxygen became plentiful on earth.
Related Questions
You decided to splurge after eating a large dinner by consuming 2 Krispy Kreme donuts. The sugar in your cells is already high from the dinner you ate earlier, but your cells still need to take in the sugar from your blood which is lower. The receptors on your body cells get a message to open a channel in the membrane and allow the sugar into the cell. In which direction will the water move with respect to the cell: either inside the body cell or outside the body cell. EXPLAIN why ENERGY is required for this type of transport, and WHY a protein receptor on the membrane is needed.
Answers
Answer:
ive never had krispy kreme donuts or starbucks
Explanation:
Which of the following best describes high G+C bacteria
a.) Gram-negative bacteria that include spirochetes, planctomycetes, and the CFB group
b.) A gram-positive group that includes Bacilli
c.) Gram-negative bacteria that include a large group composed of five classes of bacteria
d.) A gram-positive group that includes the Actinobacteria
Answers
Answer:
d.) A gram-positive group that includes the Actinobacteria
Explanation:
The best description of high G+C bacteria is option d) A gram-positive group that includes the Actinobacteria.
High G+C bacteria, also known as high guanine-cytosine bacteria, refer to a group of bacteria characterized by a high proportion of guanine (G) and cytosine (C) nucleotide bases in their DNA. This characteristic can be determined by analyzing the DNA composition of bacteria.
Option d) states that high G+C bacteria belong to a gram-positive group that includes the Actinobacteria. This is the most accurate description of high G+C bacteria. Actinobacteria are a phylum of gram-positive bacteria, known for their high G+C content. They are characterized by their filamentous growth and the formation of branching networks of hyphae, similar to fungi. Actinobacteria include a diverse range of organisms, such as the genus Streptomyces, which produce many antibiotics, and Mycobacterium, which includes the species responsible for tuberculosis and leprosy.
Options a), b), and c) are not accurate descriptions of high G+C bacteria. Option a) mentions gram-negative bacteria and includes spirochetes, planctomycetes, and the CFB (Cytophaga-Flavobacterium-Bacteroides) group, which are not specifically associated with high G+C content. Option b) refers to a gram-positive group that includes the Bacilli, which generally do not have a high G+C content. Option c) mentions gram-negative bacteria composed of five classes, but it does not specifically address high G+C content.
Therefore, option d) is the most accurate description of high G+C bacteria, as it correctly identifies them as a gram-positive group that includes the Actinobacteria.
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What are the adaptive features of animal in rainforest
Answers
Answer:
Many animals have adapted to the unique conditions of the tropical rainforests. The sloth uses camouflage and moves very slowly to make it difficult for predators to spot. The spider monkey has long, strong limbs to help it to climb through the rainforest trees.Hope it heps
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Question 8 Multiple Choice Worth 2 points)
(10.02 MC)
After raining for most of the day, it started to snow in the evening. Which weather change is most likely responsible for this change?
O A decrease in temperature
O A decrease in wind speed
An increase in pressure
O An increase in the number of clouds
Answers
Bc it’s raining and the temperature goes to freezing or below then the rain can turn into snow and typically temperature decreases naturally at night (or evening in this case)
Answer:
The answer is A.
Explanation:
In cattle, the allele for white coat color (W) and the allele for red coat color (R)
are codominant. A heterozygote has the roan coat color. Two cows with the
following genotypes are crossed.
RWX RR
What is the expected phenotypic ratio of the offspring?
A. 3 red: 0 roan : 1 white
OB. 2 red: 2 roan: 0 white
OC. 0 red: 2 roan : 2 white
OD. 1 red: 2 roan : 1 white
Answers
The Punnett square will be:
R R
R RR RR
W RW RW
So, The expected phenotypic ratio of the offspring A) 3 red: 0 roan : 1 white.
What is the expected phenotypic ratio?The initial cow has a genetic makeup of RW, while the succeeding cow possesses an genetic makeup of RR. By employing a Punnett square, we can anticipate the probable genotypes and phenotypes that can manifest from the crossbreeding of these two cows.
The roan coat color is expressed in the heterozygote due to the codominance of the R and W alleles in terms of phenotype. As a result, every progeny will exhibit a coat color that is a mixture of red and white.
The anticipated physical trait distribution among the descendants is predicted to be 4 roan : 0 red : 0 white.
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What are the Mendelian inheritance principles?
Answers
The Mendelian inheritance principles are called the Law of Segregation, the Law of genetic Dominance and the Law of Independent Assortment.
What are the Mendelian genetic inheritance principles?The Mendelian genetic inheritance principles are a series of laws that dominate genetic patterns of inheritance which were discovered by Gregor Mendel who investigated inheritance in pea plants.
The Law of Segregation indicates that alleles separate in different gametes when they are not linked, and the law of dominance indicates that certain alleles mask the expression of recessive alleles in heterozygous individuals. Moreover, the Law of Independent Assortment is based on genes that are located on different chromosomes.
Therefore, with this data, we can see that the Mendelian genetic inheritance principles are fundamental to understanding inheritance patterns and they were discovered by Gregor Mendel working with different traits in the pea plant.
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Which of the following factors determines how harmful an introduced chemical will be on the environment?
a type of chemical
b. concentration
C. weather conditions
d. all of the above
Please select the best answer from the choices provided
Ο Α
ОВ
ОС
OD
Save and Exit
Submit
Mark this and retum
Answers
Answer: The answer is Type of chemical, concentration, and weater conditions so the answer Is D! Trust me D is the answer 100%.
Organisms that live in simular environments, such as the ocean, often have the same adaptations. This is due to what
Answers
Hope this helped :)
Brainliest plzz
Which of the following is true for subtropical jet streams?
Group of answer choices
A. They bring cool air.
B. They bring warm air.
C. They blow at the poles.
D. They blow from north to south.
Answers
Answer:
B
Explanation:
It's right.
what are the 2 levels of classification used to identify plants for floral design purposes
Answers
The two levels of classification used to identify plants for floral design purposes are the genus and species.
These are part of the binomial nomenclature system developed by Carl Linnaeus in the 18th century and are used to provide a universal and standardized naming system for all living organisms.
The genus is a grouping of closely related species, and the species is a group of plants that share common characteristics and can interbreed to produce fertile offspring. Together, the genus and species names form a unique two-part name that identifies a specific plant.
For example, in the plant species Rosa, the genus is Rosa, and the species name could be Rugosa, Canina, or any other name that follows the genus name.
Identifying plants for floral design purposes using their genus and species names is essential for ensuring that the right plant is used for a specific purpose. It helps florists to choose the appropriate plant based on the plant's characteristics, such as color, texture, and size, ensuring that the final floral arrangement meets the customer's needs and expectations
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Which feature differentiates Volvox from amoeba, euglena, and paramecia?
Answers
Answer:
Volvox live in colonies. Volvox use cilia to move.
Explanation:
Please can anyone help me with my science work
Answers
the heading underlined in blue gives answers to the last part
the part above the underlined heading and the first part on the first page help with the first qn (structure of dna)
am not sure about the second qn:(
but hope that helps
In the human body, the brain regulates and controls all of the functions of the body. Which organelle in a cell has a similar function?
Mitochondria
Nucleus
Vaculoe
Ribosome
Answers
Answer:
Nucleus
Explanation:
The most important organelle is the nucleus. The nucleus is like the brain of a cell. It controls all actions that the cell undertakes. The nucleus can do this because it contains DNA.
Which sentence best describes what happens after sunlight hits photosystem
II?
A. Solar energy changes ADP into ATP.
B. NADPH turns into NADP+.
C. Glucose forms from carbon dioxide molecules.
O D. Electrons in the third protein gain new energy from light.
Answers
Answer:
A. Solar energy changes ADP into ATP.
Explanation:
The phase of the photosynthesis is based on the light that reacts as the pigment molecule absorbs energy from the sunlight and the photons strike the photosystem to initiate the photosynthesis. Energy transports through the electron that pumps hydrogen ions and forms an electrochemical gradient. The ADP is a combination of phosphate to form the ATP in the reaction i.e ADP +energy to ATP plus water. This usually takes place by the storage of high energy to ATP as sugar molecules that are sent phase of photosynthesis.Answer:
A. Solar energy changes ADP into ATP
Explanation:
Photosynthesis is the process in which plants make there own food by utilizing sunlight that converts water and oxygen into carbon dioxide and energy.
There are two systems in photosynthesis: Photosystem II and Photosystem I.
In photosystem II ADP + P is converted into ATP driven by electron gradients formed in the thylakoid membrane.
Hence, the correct answer is A.
Asap!!! I need urgent help, this is biology, and I don't understand much
Answers
dependent variable is what is changing is response to the independent variable, so the plant growth, time it takes for baby to quiet, etc.
put hypothesis in “if..then..” statement by putting the independent variable and then the dependent variable in the blanks.
for example, “if the amount of water is increased, then the plant growth will increase”
“if classical music is played, then the baby will quiet faster”
hope that helps
Which statement best summarizes agricultural technology over time?
A. Agricultural technology advanced quickly during the Agricultural Revolution and the Green Revolution but hasn't advanced since.
B. Agricultural technology didn't advance before the Agricultural Revolution
C. Agricultural technology didn't advance before the Green Revolution.
D. Agricultural technology has continually advanced over time, with significant leaps forward during the Agricultural Revolution and the Green Revolution.
Answers
Answer:
D
Explanation:
Advances in technology affect society, best summarized agricultural technology over time. Advances in technology affect society, best summarized agricultural technology over time
When is carbon dioxide used during photosynthesis?
A. Light- independent reaction
B. Light-dependent reaction
C. Carbon dioxide is made, not used
Answers
Answer:
Pretty sure its b.
Explanation:
You are a reporter working in 2001 who's just been assigned a story on how ciprofloxacin may save the lives of Senate staff exposed to anthrax. Complete a short paragraph that links how DNADNA is replicated to defense against this act of bioterrorism.
Match the terms in the left column to the appropriate blanks in the sentences on the right. Terms can be used once, more than once, or not at all.
separate tensed
ligase unwinding
relaxed enhances
inhibits uniting
gyrase join
helicase
Bacterial DNA is a double-stranded helix that has to ___________ its strands during replication. The _______ of DNA strands at the replication fork creates twists farther down the helix that need to be ______ by DNA _______. Ciprofloxacin ______ this enzyme to block DNA synthesis and stop the deadly bacteria from growing.
Answers
Answer:
Bacterial DNA is a double-stranded helix that has to separate its strands during replication. The unwinding of DNA strands at the replication fork creates twists farther down the helix that need to be relaxed by DNA gyrase. Ciprofloxacin inhibits this enzyme to block DNA synthesis and stop the deadly bacteria from growing.
Explanation:
DNA which stands for deoxyribonucleic acid is the molecules that stores genetic information in most living organisms. For successive reproduction to take place as well as growth to occurs in organisms, the genetic information stored in the DNA must be copied into new cells. This is achieved through the process of DNA replication.
DNA is a double-stranded molecule that is helical in shape. For replication to occur, the double strands has to be separated so that the information stored within can be accessed and then copied. DNA helicases are enzymes which are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied. The unwinding of DNA strands at the replication fork creates twists farther down the helix that need to be relaxed otherwise, the DNA strands will break. The enzyme responsible for relaxation these twists is known as DNA gyrase. Thus, any drug like Ciprofloxacin than inhibits DNA gyrase will block the DNA replication process in bacteria thereby stopping the growth of the bacteria.
Bacterial DNA is a double-stranded helix that has to separate its strands
during replication. The unwinding of DNA strands at the replication fork
creates twists farther down the helix that need to be relaxed by DNA gyrase.
Ciprofloxacin inhibits this enzyme to block DNA synthesis and stop the
deadly bacteria from growing.
The antibiotic referred to as Ciprofloxacin acts on the DNA of the bacteria
and it does this by inhibiting the enzyme that is required for DNA
synthesis. This stops replication and the anthrax bacteria from growing and
forming new organisms.
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What color will a solution of water, glucose, and Benedict's reagent turn?
Answers
Answer: Benedict's reagent starts out aqua-blue. As it is heated in the presence of reducing sugars, it turns yellow to orange. The "hotter" the final color of the reagent, the higher the concentration of reducing sugar.
What new knowledge was gained from Frederick Griffiths work with pneumococci bacteria
Answers
Answer:The new knowledge gained from Frederick Griffith's work with pneumococci bacteria is that bacteria contain a physical substance that can change the structure of other bacteria. Therefore, option 3 is the correct answer.
Explanation:
Which organism would a shark get the SMALLEST percentage of energy from after eating? A Dolphin B Seagull C Seal D Tuna fish
Answers
Answer for room 5 punnet square escape room
Answers
In Punnett Square, a grid and letters are used. Lowercase letters correspond to recessive alleles, while capital letters signify dominant alleles.
What is Punnett square?The known genotypes of each parent are displayed using this tool to aid in predicting the potential genotypes of their offspring. It demonstrates how alleles are inherited or transmitted from parents to offspring.
It is frequently utilized in monohybrid and dihybrid crosses, where the theoretical results are predicated on the assumptions of segregation and independent allele distribution (according to Mendelian inheritance).
A tool that aids in displaying all potential allele pairings of gametes in a cross of parents with known genotypes in order to forecast the likelihood that their kids would carry specific allele combinations.
Therefore, In Punnett Square, a grid and letters are used. Lowercase letters correspond to recessive alleles, while capital letters signify dominant alleles.
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According to the age structure diagram shown Chad is most likely which type of country?
Answers
The answer is that Chad is most likely a developing country. According to the age structure diagram given in the question, the population of Chad is mostly young and has a smaller proportion of elderly people.
This suggests that Chad is most likely a developing country. Developing countries have younger populations with higher fertility rates and lower life expectancies, resulting in a larger proportion of children and young adults in the population.
As a result, the population structure of a developing country is usually characterized by a broad base (large proportion of children and young adults) and a narrow top (small proportion of elderly people).Chad is most likely a developing country due to the shape of its population pyramid or age structure diagram.
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How does active transport differ from all other forms of transportation?A. It shifts from high to lowB. It maintains homeostasisC. It creates an equilibrium shiftD. It requires energy
Answers
The correct answer is the letter D. It requires energy
*Active transport requires energy (ATP) in order to move molecules across the membrane. It needs energy since it moves molecules against a concentration gradient.
the role of you to make good society
Answers
By being a good human being, following moral values we can build a good society.
Economy is growing, GDP is flawed. Wars an Natural disasters are good for GDP. Aristotle in order to make good society, he said, the society must create the pre-conditions. For him the good society was the one that created the conditions for what he calls "Eudaimonia", which means flourishing or thriving.
First are the basic needs of humans that is Food, Shelter, Water and Secondly the amenities for building a successful and good lifestyle and better life.
Moreover, every individual should have freedom to speech, fundamental rights, an attitude of gratitude as well. A person should be a giver, a giver to needy ones, giver of happiness that is spreading happiness, rather than negativity.
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What is the difference between germline mutations and somatic mutations?
Answers
Somatic mutations are changes to your DNA that happen after conception to cells other than the egg and sperm.
GIVING BRAINLIEST TO FASTEST CORRECT ANSWER (TIMED)
Two communities have a contamination area of 576 square meters and are given methods A, B, and C to clean up
the contamination area. Community 1 is a smaller community and therefore has less resources such as monies
available for the clean-up. Community 2 has more resources but more endangered species of plants and animals in
the contamination area. The longer the contamination is present the more harm there is to the environment including
living things. There are a variety of methods for cleaning up contamination in bodies of water and soil. Look at the
data table below and pick the best method for each community.
1. Using table 1, state which method would be best for community 1 and 2 at 10°C. Justify your answer.
Community 1:
Community 2:
2. Using table 1, state which method would be best for community 1 and 2 at 20°C. Justify your answer.
Community 1:
Community 2:
3. Using table 2, state which method and at what concentration would be best for community 1 and 2. Justify
your answer.
Community 1:
Community 2:
Answers
A. Considering table 1, the following procedure would work the best for communities 1 and 2 at 10°C:
Community 1: Method A because it is significantly less expensive than Method B and removes pollution more quickly than Method C.
Community 2: Method B because it preserves the lives of the local endangered species and removes contaminants more quickly than the other ways.
B. The approach that would work best for communities 1 and 2 at 20°C using table 1 is:
Community 1: Method C since it is less expensive and removes pollution more quickly.
Community 2: Process A since it removes pollution the fastest of the available options.
C. For communities 1 and 2, the technique and concentration that would work best are:
Community 1: Using Method A at 100 ppm is less expensive and less harmful to the environment.
Community 2: Compared to the other techniques, Method B at 200 ppm cleans up the contamination the fastest and with the least amount of environmental harm.
What are the main contaminants in the environment?Polyaromatic hydrocarbons, heavy metals, pesticides, organic solvents, inorganic solvents, and other pollutants are among the most prevalent environmental contaminants. Accidental discharge of these toxins into the environment causes the emergence of new diseases that affect human health as well as population deaths in large numbers.
Radon and biological agents such as molds, certain infectious agents such as bacteria or viruses, and dust mites also contaminate the environment.
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Triangle ABC is reflected across line L to form ΔALBLCL, and AAL intersects line L at point D. Which equation is not necessarily true?
A.
m∠ACB = m∠ALCLBL
B.
AD = ALD
C.
m∠BAC = m∠BLALCL
D.
ALD = BLD
Answers
Answer:
The equation that is not necessarily true is D. ALD = BLD. This is because the line of reflection (L) does not necessarily bisect the triangle ABC, so the lengths of ALD and BLD may not be equal.
Explanation:
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Select the TRUE statement about a resting neuron. a.) The cytoplasm side of a neuron is positively charged while the outside of the neuron has no charge. b.) The cytoplasm side of a neuron is negatively charged while the outside of the neuron is also negatively charged. c.) The cytoplasm side of a neuron is more negative than the outside of the neuron. d.) The cytoplasm side of a neuron is more positive than the outside of the neuron.
Answers
Given what we know about the nervous system and resting neurons, we can confirm the cytoplasm side of a resting neuron is more negative than the outside of the neuron.
What is a neuron?Neurons are specialized cells that make up the nervous system in the body. Their primary function is to act as messengers, delivering information in the form of electrical impulses and neurotransmitters. These neurons work using rapid shifts in membrane potentials.In order to do this, the starting value or resting point of the membrane is negatively charged.Therefore, we can confirm that since neurons function using shifts in membrane potentials, the starting point or resting form of a neuron has a negatively charged membrane, meaning that the cytoplasm side of a resting neuron is more negative than the outside of the neuron.
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Will give 50 points to whoever can answer.
Show the correct order for impulse transmission after you touch cold glass of water
Answers
Answer:
answers: 3rd, then 2nd then 4th then 1st. 3rd goes in first, 2nd in 2, 4th in 3rd, 1st in last