Answer:
ATP production.
Explanation:
The result will be the production of ATP molecules if we place thylakoids in a beaker with a solution that mimics the chloroplast stroma in direct sunlight. The thylakoids are able to formed ATP in the dark because H+ gradient is required for ATP synthesis. The scientists find out that the light reactions were not necessary to establish the H+ gradient required for ATP synthesis by ATP synthase.
Which of the following is not a reason why there has there been so much attention given to saving tropical rainforests?
A)
great species diversity and habitat
B)
livelihood for human inhabitants
C)
vacation possibilities
D)
the possibility of finding new drugs
Answer:
C.) vacation possibilities
Explanation:
got it right on edge 2021
which of the following does not belong to the group
a. cocci
b. bascilli
c. cilia
d. spirilla
prepare a question aire to know about interdependence between the biotic and abiotic component
Answer: The biotic components of the environment are the living which beings that interact with the abiotic component of the environment. Abiotic components are non-living like air, water, soil, atmosphere, and others. The biotic components require abiotic components for their survival and the abiotic components get recycled due to the utilization by the living beings.
Explanation:
Questionnaire that can be related with the interdependence of the biotic and abiotic component:
1. How abiotic components are related to biotic components?
2. How abiotic components affect the functioning and survival of the biotic components?
3. What will be the impact on biotic components if all the abiotic factors are removed from their surrounding environment?
4. How water cycle gets disturbed due to deforestation?
5. How carbon cycle gets affected by the deforestation and pollution increases in the region of deforestation?
is Professional athletic ability inherited or acquired?
O Inherited
O Acquired
2. is color blindness inherited or acquired
A. inherited
B. Acquired
Answer:
1. Professional athletic ability is acquired
2. A
Explanation:
1. You would need to work to get to be athletic and that is not inherited
2. There is a certified gene that causes colorblindness in humans
Question 26 (5 points)
Which resources are abundant in the Andean and midlatitude countries?
Choose all answers that are correct.
copper
natural gas
diamonds
petroleum
Answer:
Copper,natural gas, petroleum
Explanation:
Copper and petroleum are found in South America. Most of the mines in the world are found in South America and they generates income to the Aldeans countries.
Also, petroleum reserves are found South America and they are very important, but not as as much as mineral reserves. Venezuela is the country that has the largest oil reserves, other countries like Peru or Ecuador have important reserves. natural gas is very common and present in the region, and it is also an important resource.
Please read the following scenario to answer the following question. While working with cultured mouse cells, a researcher unknowingly treated the cells with a mutagen that causes the deletion or insertion of individual nucleotides in DNA. Subsequently, the researcher isolated and cultured a single cell from this group and noticed that the progeny of this cell were not producing a certain protein, and that this affected their survival. The mutation would be most harmful to the cells if it resulted in ________
Answer:
deletion or insertion of nucleotide from or in any coding sequence of the DNA
Explanation:
The mutation would be most harmful to the cells if it resulted in the deletion or insertion of nucleotide from or in any coding sequence of the DNA.
Deletion or insertion of a nucleotide from/into the coding sequence of DNA results in a frameshift mutation away from the original protein. Deletion/insertion of a nucleotide from/to the coding sequence of a DNA can cause a totally different protein to be synthesized from such DNA or, worse still, results in a nonfunctional protein. Both results could be grossly harmful to the cells.
Manufacturers could reduce waste and conserve resources by making products that use less
are difficult to repair
use more materials
are more durable
are disposable
Answer:
are disposable.
Explanation:
Manufacturers could reduce waste and conserve resources by making products that are disposable.
This ultimately implies that, manufacturers of finished products that are being used by the consumers should endeavor to make them easily disposable without any adverse effect on the environment.
Which statements describe functions of antibodies? Select two options.
Answer:
This question lacks options, options are:
A.They maintain the cell’s shape.
B.They regulate cell processes.
C.They protect the body from infectious agents.
D.They signal the immune system to destroy pathogens.
E.They speed up biochemical reactions.
F.They send electrical signals.
The correct answers are C and D.
Explanation:
B cells and T cells use different biological weapons to attack the pathogen. The first secrete proteins called antibodies, which are distributed via the blood or the exposed surfaces to the environment, such as mucous. Antibodies are glycoproteins that circulate in the bloodstream looking for antigens that cause some type of damage to the body. Antibodies recognize and neutralize pathogens in a highly efficient way. Once the antibodies are produced, they remain circulating in the bloodstream for several months, which generates immunity for a long period of time to a certain antigen, in other words, they are capable of recognizing other molecules (antigens) in a very specific way and forming stable complexes with them (immune complexes). Its appearance in plasma is part of the adaptive immune response, in what is known as a specific humoral response, constituting a very effective defense against pathogens.
Which statement best describes the role of the nucleus in a cell?
The gate at a factory keeps out unwanted cars.
The elevator at a factory moves materials around the building.
The boss at a factory gives out orders and directions.
The boxes at a factory are used to ship materials to customers.
O
Answer:
The boss at a factory gives out orders and directions.
Explanation:
The nucleus is an organelle that is enclosed by nuclear membrane and carry genetic material in eukaryotic cells.
The role of nucleus is to monitor and control the functioning of different activities such as growth and metabolism of the cell and also transfers the hereditary information. Likewise boss of a factory gives out orders and directions to regulate the factory properly.
Hence, the correct option is "The boss at a factory gives out orders and directions."
Trees contribute ____ in the city and countryside. Imagine a land with plenty of trees, grasses and flowers of different colors, sizes aand shapes.
a. Beauty
b. Freshness
c. Coolness
d. Stability
Answer:
beauty and freshness both
In science, theories____?
Answer:
have limited explanatory power
PLZ HELP
Recall from the video why homeostasis is so important. What could happen if the interactions between the parts of the body did not operate properly to maintain homeostasis?
Answer:
the most frequent thing so that homeostasis does not occur is the imbalance of some of the systems, such as the respiratory or endocrine, among others ... and also the state of shock of the organism.
Explanation:
The states of shock are as follows:
hypovolemic or hypervolemic shock, hypo or hyperglycemic shock, anaphylactic shock, hypotensive or hypertensive shick.
These shocks are very difficult to reverse, they quickly deregulate homeostasis and also require a rapid medical response.
Place the following events in
the cell cycle in the proper
order:
a. Anaphase
b. Cytokinesis
C. G2
d. Telophase
e. G1
f. Prophase
8. S
h. Metaphase
The cell cycle in the correct order is G1, S, G2, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis.
What is the cell cycle?Prophase, metaphase, anaphase, and telophase are the four phases that a cell goes through. To form chromosomes, chromatin condenses (sister chromatids joined at the centromere).
In prophase, the chromosomes get shorter and thicker, in the center of the cell, during the metaphase, the chromosomes align. Chromatids separate during the anaphase process and travel to the opposing poles.
Telophase: Two nuclei are produced when nuclear envelopes have reformed around each chromosomal group.
Therefore, the cell spends the majority of its time in interphase, which is also when it grows, duplicates its chromosomes, and gets ready to divide.
Learn more about cells, here:
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activity 2
Label the parts of the female reproductive system
Answer:
See explanation
Explanation:
The female reproductive system is composed of internal and external sex organs. These organs are immature at birth but develops during puberty and enable the production of gametes or sex cells, and are also equipped with structures to carry a foetus during pregnancy.
The exterior of the female reproductive organ consists of the vagina and its associated structures. The vagina now leads to other internal structures in the female reproductive system such as uterus, fallopian tubes, cervix, and ovary.
An image of the full anatomy of the female reproductive system is shown in the image attached to this answer.
Image credit: topperlearning
In sweet pea plants, purple flower color is dominant over red flower color and long pollen grain shape is dominant over round pollen grain shape. Two sweet pea plants that we heterozygous for both flower color and pollen grain shape are crossed with one another. A geneticistis surprised to observe that there are fewer round purple offspring and long red offspring than were predicted by the 9:3:3:1 expected phenotypie ratio Which of the following statements provides the most reasonable prediction to account for the deviation from the expected results?
A) in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked
B) In sweet pea plants the genes for flower color and for pollen grain shape both exhibit codominance
C) Several mutations occurred spontaneously producing a deviation from the expected phenotypic ratio of the offspring
D) The genes for flower color and pollen grain shape are inherited independently because of the law of independent assortment
Answer:
The correct answer is - option A) in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked.
Explanation:
In this given case the result of phenotypes are not as expected and does not follow the law of independent assortment presented by Mendel. It appears to be the case of genetic linkage as it is not following the mendelian law by producing fewer round purple offspring and long red offspring which do not satisfy the expected mendelian ratio of 9:3:3:1. Mutation can lead to failure in producing proteins but could not affect the phenotypic ratio of the plant.
Thus, the correct answer is - option A.
Medel was the Father of Genetics, who gave the laws on independent assortment, dominance, and segregation of the genes.
However, there are some exception that violates these laws, such as genetic linkage is one of the exceptions that violates the law of independent assortment.
The correct answer is:
Option A. in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked
In the given data, the results can be interpreted as:
The Law of independent assortment states that the two or more alleles of different genes are assorted independently. In the given example, the genetic linkage occurs, which does not follow the ratio of 9:3:3:1. The genetic linkage does not follow the law of independent assortment, which results in fewer purple offspring.Thus, mutation can cause the failure of Mendel laws and can affect the phenotypic traits of an organism.
Therefore, Option A is correct.
To know more about genetic linkages, refer to the following link:
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Why might it benefit your compost to add earthworms to the mix?
Answer:
earthworms benefit the soil
Explanation:
How would the world be different if ice were more dense than water?
When water is being transported from the roots to the leaves of a plant or tree, water vapor eventually escapes through air spaces in the plant or tree. More water travels up to replace the lost water due, in part, to the ________________ of water.
Answer:
What the actual truck
Explanation:
Search online to find at least two articles that have opposite opinions on the repeated breeding of pedigree dogs. Does one article seem more scientifically credible than the other? Explain your answer.
Answer and Explanation:
In current years the subject of inherited disorders in pedigree dogs has been extensively discussed. This article discussed the consequences related to repeat breeding of pedigree dogs. In the last few years several pedigree breeds have been generated which depend on the selection of particular behavioral and physical features. The development of pedigree dog breeds can be both a curse and a blessing. The desired characteristics are severely taken, while undesired characteristics can be unintentionally secure within the breed. The repeated breeding of purebred dogs lead the loss of genetic diversity. The loss of genetic diversity can be attributed to two major actions; the first one happening in domestication and the second arising from the development of breed. Where the repeated use of line breeding, popular sires, promotion of breed barrier rule and breeding for particular phenotypic traits contributed to loss of genetic variation. Widespread use of a popular sires leads to overrepresentation of that dog’s genome in breed. Overrepresentation of a popular sires genome increase the risk of monogenetic inherited disorders. According to the other article inbreeding causes severe birth abnormalities and defects such as epilepsy, and heart diseases that could make the lives of animals miserable. These problems start in the 19th century, when dog fanciers activated to set down desired physical characteristics. The scientific evidence shows that ninety percent dogs are said to be healthy. According to the both articles repeated breeding of pedigree dogs cause many genetic disorders.
Answer:
A veterinarian wrote an article stating his disapproval of some of the tactics used to breed pedigree dogs. He stated that pedigree dogs can be healthy, but because of inbreeding, they’re more likely to have health problems than other dogs. The author supported his statement with scientific studies.
A breeder with 20 years of experience wrote an article that was pro-breeding. He talked about his own success and shared his opinions on proper breeding techniques. Because the veterinarian used scientific facts to support his reasoning, his article seemed more scientifically credible to me.
Explanation:
Why are urine samples kept in a refrigerator before testing?
Answer:
Urine refrigeration preservation maintains the sample in the ACS chemical analysis, cellularity and bacteriuria
Explanation:
Tests with high diagnosis and prognostic importance in clinical practice include urinary irregular constituents and sediment (ACS). If it is not possible to analyze ACS within two hours of processing, the sample must be retained to prevent pre-analytical interferences. Cooling is due to its economic productivity the most commonly used technique. In comparison, relative to chemical preservation, it poses fewer discomforts.
A scientist wants to monitor the amount of acid
precipitation falling into a watershed.
Which tool would be the best Tor the scientist to use?
O A. pH meter
O B. Dissolved oxygen sensor
O C. Satellite images
O D. Bioindicators
Answer:
A. pH meter
Explanation:
This is because a pH meter measures the acidity of water.
Answer:pH meter
Explanation:
When Nepal clear-cut its mountainous forests, it created environmental disasters in other countries. Which of the following is not one of the created disasters?
A)
destabilized soil leading to landslides
B)
increased sediment load in rivers and streams
C)
flooding conditions downstream
D)
local farmers suffering from increased crop pests
Answer:
D
Explanation:
Got it right
How are cellular respiration and photosynthesis mutually dependent
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.
Explanation:
Which of these is a way that biostimulation can be used?
pls help. its for bio. giving 15 points
Answer:
chromosomal rearrangement
Describe why the amount of light available to the Chlorella culture might affect the growth dynamics of the alga.
Answer:
See the answer below
Explanation:
The amount of light available to Chlorella culture might affect the growth dynamics of the alga because the light is an important factor necessary for the synthesis of carbohydrates and other important molecules in the body of the organism.
The process of synthesizing carbohydrates is termed photosynthesis and during this process, the energy of light is used to excite the photosystem of the chlorophyll of the organism, leading to the release of electrons whose energy is used to synthesize an energy molecule that is utilized in the latter part of the photosynthetic process. The entire process of photosynthesis can be summarised as an equation below:
[tex]6CO_2 + 6H_2O + light --> C_6H_1_2O_6 + 6O_2[/tex]
The manufactured carbohydrates act as food for the organism and are broken down during respiration to release energy necessary to drive metabolic processes that bring about growth and development.
Hence, the amount of light is an important factor that might affect the growth dynamics of all green plants, including the Chlorella.
The amount of light available to the Chlorella culture affect the growth dynamics of the alga because of photosynthesis.
Chlorella is an alga means it is an autotrophic organism that produce food by using the sunlight.
In the absence of light, Chlorella will not be able to survive in the culture.In presence of low light, Chlorella will grow slowly due to low production of food.In presence high intensity light, Chlorella will grow faster.Therefore, the amount of light available to the Chlorella culture affect the growth dynamics of the alga because of photosynthesis.
To know more about photosynthesis,
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If a carrier female and an affected male have a offspring, what is the chance that they will have a carrier offspring
A 75%
B 50%
C 25%
D 25%
Answer: 75%
Explanation: there is a higher risk because there is a carrier as well as an affected. Lets just put it this way, they are either going to have the disease or carry the disease.
Which organelle part of the cell would say this if it could speak? Nobody messes with me! I make all the decisions in
this cell.
1)Cell membrane
2)Vacuole
3)Mitochondria
4)Cytoplasm
5)Nucleus
Answer:
nucleas
Explanation:
they control all the cells
Coin tosses can demonstrate the effects of genetic drift. Imagine that heads and tails are two alleles in a population. Consider each coin toss to represent a member of the population. Write down the statements that describes the effect.
Answer:
Smaller populations have a greater chance of having one allele expressed disproportionately.
Explanation:
Genetic drift is defined as the a change in how frequently a gene allele occurs in a given population as a result of random sampling.
This random sampling is similar to having a coin toss that gives heads or tails.
Genetic drift has the tendency of making smaller populations have a greater chance of having one allele expressed disproportionately.
This is because when individuals in a small population mate there is a greater probability that an evolution will have more far reaching effects.
In a large population the effect will be less pronounced.
Helppp meeeeeeee pls!!!!
Answer:
ture
Explanation:
Answer:
that is true
Explanation:
I need These last answers
Answer:
67. Obligate anaerobes
68. Aerotolerant anaerobes
69. pH
70 media nutrient density
71. agar concentration
72. extremophiles
Explanation:
Anaerobes are microorganisms which do not require oxygen for their metabolic activities. The types of anaerobes based on metabolism are: obligate anaerobes; facultative anaerobes ; and aerotolerant anaerobes.
Some bacteria are anaerobes.
67. Obligate anaerobes do not require oxygen at all for their metabolism. They die in the presence of oxygen.
68. Aerotolerant anaerobes do not require oxygen as well but can also tolerate oxygen. they are unaffected by the presence or absence of oxygen
69. The pH of the medium affects the growth of bacteria. When pH becomes too low or too high, bacteria colonies begin to die.
70. when the nutrient concentration is high, growth rate of bacteria colony increases, but when it is low, bacteria colony growth decreases.
71. agar concentration limits the growth of bacteria colony. When the agar is very concentrated, that is the medium is hard, the bacteria colony is limited in their ability to move and vice versa.
72. Extremophiles is the name given to archaea that thrive in extreme conditions of temperature and pH. For example, the archaeal Methanopyrus kandleri strain 116 grows at 122 °C while the genus Picrophilus e.g., Picrophilus torridus has the ability to grow at a pH of 0.06.