Answer:
Speed.........................................
Select the photosynthetic molecule that gives halobacteria its unique color.
a.) Caratenoids
b.)Thylakoids
c.)Bacteriochlorophylls
d.)Bacteriorhodopsin
Answer:
Bacteriorhodopsin
Explanation:
Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.
Erosion is
A)how soil is turned into rock.
B)the removal of soil due to the elements (rain and water).
C)the way by which plants are able to hold the soil in place.
D)the breaking down of rock into soil.
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N
What makes up
chromatin?
A. DNA only
B. DNA and proteins this
C. DNA and ribosomes
D. DNA and RNA
The option B is correct. Chromatin is made up of DNA and proteins.
What is chromatin?Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms. Many of the proteins — namely, histones — package the massive amount of DNA in a genome into a highly compact form that can fit in the cell nucleus.
The function of this complex, the chromatin, is to package and reduce the size of DNA/RNA (tightly wind it so it takes up less space), regulate DNA replication and gene expression and to protect the DNA from damage.
The chromatin structure is formed by the association of DNA and histones. With the help of histone proteins, chromatin organizes DNA into chromosomes. Histones are adaptor proteins that help the DNA structure. They form a complex structure around the DNA, giving the chromosome a more compact shape.
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Which option describes a step in designing an experimental investigation? O A. Identifying the variables that will be controlled for all experimental groups B. Writing a procedure that prevents other scientists from repeating the results C. Making sure that the hypothesis will be supported and not refuted O D. Collecting each piece of data in a different way so that there is more variety
A step in designing an experimental investigation is identifying the variables that will be controlled for all experimental groups.
The correct option to the given question is option A.
An experiment is a controlled investigation where scientists manipulate and measure specific variables. Scientists design experiments to test hypotheses and answer questions. In the design of an experiment, several steps must be followed to ensure the results are accurate and reliable.
Identifying the variables that will be controlled for all experimental groups: This is an essential step in designing an experimental investigation. Controlled variables are variables that scientists keep constant throughout the experiment so that they do not influence the dependent variable.Writing a procedure that prevents other scientists from repeating the results: Scientists usually provide a detailed description of their experimental procedures to ensure that other scientists can reproduce the results of the experiment and verify its accuracy.
Making sure that the hypothesis will be supported and not refuted: A hypothesis is a statement that scientists make that explains the relationship between the variables in an experiment. The hypothesis must be tested to determine whether it is supported or refuted.Collecting each piece of data in a different way so that there is more variety: In an experiment, data is collected to support or refute the hypothesis. Scientists should collect data in different ways to ensure that the results are reliable and accurate.
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explain the factors that affect photosynthesis rate
Vaccination has been shown to cause autism.Select one:TrueFalse
As we know vaccines have been a very controversial topic, and one of them is autism, even when this has been proved false and the original paper where it was published the study retracted, there still a number of people who argue that this is true, even when evidence in favor of vaccine safety is overwelming. Therefore the correct answer is false.
Where are the A, B and RH antigens located
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
In granulocytes, what happens to the nucleus as the cell ages?
The granulocytes have been commonly recognised and distinguished histologically by their nuclear shapes and sizes. They contain multi-lobed nuclei, each lobe connected by a short region of nucleoplasm.
- BRAINLIEST answerer
Granulocytes are recognized and distinguished histologically by their nuclear shapes and sizes.
Do granulocytes have a nucleus?The granulocytes have been commonly recognized and distinguished histologically by their nuclear shapes and sizes. They contain multi-lobed nuclei, each lobe connected by a short region of nucleoplasm.
What do granulocytes turn into?
A granulocyte is a type of white blood cell. A blood stem cell goes through several steps to become a red blood cell, platelet, or white blood cell.
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Answer????????????????
Answer:
carbon dioxide
Explanation:
TTT 18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants 19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens 20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera 21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm 22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class 23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium 24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population 26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista 25. Ecology is a biological science that deals with all of the following except C. organism D. none
All of the options are chemical approaches to control micro-organism excepts: B Disinfectants
19. The scientific name for modern man is: B. Homo sapiens
20. kingdoms are prokaryotic organisms placed D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are: B. Angiosperm
22. taxonomic groups contains closely related organisms A. Genus
23. Malaria causing single-celled parasitic protozoan is called: D. Plasmodium
24. kingdoms consists of eukaryotic organisms such as yeast, molds, and mushrooms A. Kingdom fungi
25. Ecology is a biological science that deals with except: D. none
26. The organism that are consumer is D. Scavengers
What is the chemical approaches to control micro-organismDisinfectants are special chemicals that are used to kill germs or prevent them from growing on surfaces or objects. They are not usually used to control microorganisms within living things, unlike antibiotics, antiseptics, and autoclaving, which are all chemicals used to control microorganisms.
Homo sapiens is the fancy name used by scientists to refer to regular, everyday humans This is the species that humans are a part of.
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18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants
19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens
20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm
22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class
23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium
24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population
25. Ecology is a biological science that deals with all of the following except Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista C. organism D. none
26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers
A species of birds from South America have feathers that are either blue, black, or both blue and black. There are only two alleles for the gene that codes for feather's color, A and U. Allele A controls black color, and the allele U controls blue color. The birds with blue and black feathers fully express the alleles A and U. Most likely, A and U are ______________ alleles.
Dominant
Recessive
Codominant
Incomplete dominant
Answer:
Dominant alleles
Explanation:
B. Liverworts (Hepatophyta)
1. Observe the living green "leafy" gametophyte stage at Station A. These organisms have leaf-
like, stem-like, and root-like structures. Draw and label structures of the liverworts. Be sure
to include labels of the following items: gametophyte, n, sporophyte, 2n, rhizoides, leaf-like
structures, and thallus.
2. Use the dissecting scope and look at the sporophyte, gametophore, rhizoides, and thallus.
What do you notice? Write down some observations of each.
3. Compare the moss to the liverworts. How are they similar and how are they different?
Answer:
Explanation:
Title: Observation of Liverworts (Hepatophyta)
Objective: To observe the living green "leafy" gametophyte stage of liverworts and compare them with moss.
Hypothesis: Liverworts and moss may share some similarities in structure, but there may be significant differences between them.
Observations:
Liverworts Structures:
Gametophyte: The main plant body of the liverwort, which is haploid (n) and produces gametes.
Sporophyte: A structure that grows from the gametophyte and produces spores. It is diploid (2n).
Rhizoides: Root-like structures that anchor the gametophyte to the substrate and absorb water and nutrients.
Leaf-like structures: Flattened structures that resemble leaves but do not have true veins or stomata.
Thallus: The entire plant body of the gametophyte, which lacks true stems or roots.
Observations of different structures in liverworts:
Sporophyte: Small and inconspicuous, growing from the gametophyte.
Gametophore: The stem-like structure that supports the gametophyte and sporophyte.
Rhizoides: Thread-like structures that attach the gametophyte to the substrate and absorb water and nutrients.
Thallus: The plant body of the gametophyte that lacks true stems or roots.
Comparison between liverworts and moss:
Similarities:
Both are non-vascular plants.
Both have a haploid (n) gametophyte and a diploid (2n) sporophyte stage.
Both reproduce by spores and require water for fertilization.
Differences:
Liverworts have leaf-like structures and a thallus, while mosses have true leaves and stems.
Liverwort sporophytes are small and inconspicuous, while moss sporophytes are tall and conspicuous.
Liverworts have rhizoides, while mosses have true roots.
can zoonotic disease spread from humans to humans?
Zoonotic disease are regularly contaminations that can be transmitted from creatures to people. Be that as it may, in a few cases, certain zoonotic disease can undoubtedly spread from people to people.
What is the zoonotic diseaseOne need to know that the capacity of a zoonotic infection to transmit between people can change depending on a few variables, counting the particular illness, its mode of transmission, and the in general circumstances.
Coordinate transmission: A few zoonotic illnesses can be transmitted straightforwardly from an tainted human to another person through near contact. This could happen through the trade of substantial liquids, such as blood or respiratory emissions, etc.
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What happens to a population when a resource that is a limiting factor in the environment suddenly becomes scarce(very little/hard to find)?
a. The population size will increase until that limiting factor becomes abundant again.
b. The population size will fluctuate as individuals adapt to the reduced availability of the limiting factor.
c. The population size will remain the same and make use of other, more abundant limiting factors.
d. The population size will decrease to a size that can be supported by that limiting factor.
Will people who eat fast food, daily , develop symptoms of poor health related to obesity
Answer:
Yes. That will happen. Would u like an explanation?
Explanation:
Eating a poor quality diet high in junk food is linked to a higher risk of obesity, depression, digestive issues, heart disease and stroke, type 2 diabetes, cancer, and early death.
What happens if you eat fast food every day for a week?
Studies on fast food and heart health found having fast food more than once a week was linked to a higher risk of obesity while eating fast food more than twice a week was associated with a higher risk of metabolic syndrome, type 2 diabetes and death from coronary heart disease.
Is it healthy to eat fast food once a day?
Although it may be beneficial to eat junk food once a week, make sure that you eat just one such meal throughout the day, or your body might end up stocking all those calories which may end up getting stored as fat.
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True or False?The sun is the only star in our galaxy.
A galaxy is composed of numerous solar systems. These systems are composed of stars, planets, dwarf planets, asteroids, and comets.
ANSWER: False
Help I’m being timed!
pretty sure it's chemical change
What are the stages of bee development (eggs,larvae,pupae)
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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Choose the best answer for the following question:
What kind of information can be gained about an organism from its scientific name?
a
what genus it is
b
what species it is
c
where it lives
d
what genus and species it is
1pt What do we call the force produced by the interaction of electricity and magnets?
O A. electricity
O B. electromagnetism
O C. gravity
OD. magnetism
Two locations have different water vapor Contant in the atmosphere which of this is likely to be recorded
Answer:
The water vapor content in the atmosphere is typically recorded using a measurement called relative humidity, which represents the amount of water vapor present in the air relative to the maximum amount the air could hold at a given temperature. Therefore, if two locations have different water vapor content in the atmosphere, it is likely that they would have different relative humidity readings.
For example, if one location has a higher water vapor content in the air, it would have a higher relative humidity measurement than a location with a lower water vapor content. Conversely, if one location has a lower water vapor content in the air, it would have a lower relative humidity measurement than a location with a higher water vapor content.
It is important to note that other factors can also influence relative humidity measurements, such as temperature and atmospheric pressure, so a direct comparison of relative humidity readings between two locations should take these factors into account.
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ChatGPT Mar 23 Version. Free Research Preview. ChatGPT may produce inaccurate info
Fill in the blank with the appropriate directional term to complete the following sentences as if a body is in anatomical position. More than one answer may be correct. Use terms from the previous slide.
The heart is to the lungs.
The knee is to the hip
The wrist is to the hand
The mouth is to the nose.
The thorax is to the abdomen
The thumb is to the ring finger
The sternum is to the heart
The skull is to the scalp
The ears are to the nose
Dorsal refers to the of the human body, while ventral refers to the of the human body
WORDS:
.
Deep Front Anterior Proximal Superficial Posterior Inferior Superior Distal Back Medial
Explanation:
Dorsal is posterior(back). Ventral is anterior(Front)
mention the benefits of sunlight and soil to living things
sunlight helps in the process of photosynthesis,
Explanation:
photosynthesis is the process by which plants makes there own food using light in animals sunlight is important because it gives vimatin D which is responsible for strong born formation
Describe the transport properties of the loop of Henle and explain the interactions between the ascending and descending limbs
Answer:
The loop of henle is a part of the renal functional unit.
This handle has an ascending part and a descending part.
In the descending loop, the urine that is formed inside enters a hypotonia, since a large amount of water is absorbed and the concentrations of solutes in the urine decrease, thus generating a hypoosmolar solution, that is, with less molarity.
In the ascending loop of henle, the opposite arises, ionic channels appear that increase the concentration of solutes, this is how the urine that runs through the interior of the ascending loop of henle becomes hyperosmolar.
Hyperosmolarity is the increase in concentrations of solutes, and the increase in molarity of the solution, which in this case would be urine.
Explanation:
A very important fact is that urea is absorbed in the ascending henle loop.
What is the flexibility of spider silk determined by the structure of its molecules
The flexibility of spider silk determined by the structure of its molecules is quite strong.
The components that make up spider silk are what give it its flexibility. Proteins called fibroins, which are made up of amino acids organised in a certain sequence, make up spider silk. The arrangement of amino acids in fibroin proteins results in a helical structure, which is held together by hydrogen bonds between the amino acids.
The fibroin protein chain's exact arrangement of amino acids and hydrogen bonds produces a special blend of strength and flexibility. The silk is flexible enough to stretch and absorb energy without breaking and robust enough to resist significant stress. Spider silk is a fantastic material for many uses, including clothes, medical equipment, and even bulletproof vests, thanks to its unique mix of qualities.
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The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Derived characters are those that emerge at some point during evolution, and are expressed by all the subsequent groups. Derived characters shared by protist, plants, fungi, and animals are: eukaryotic organisms, autotroph or heterotroph, cell membrane, nuclei with DNA, mitochondria.
What are derived characters?
The derived character is any trait that a group passes to the descendants.
Through evolution, the characters change, and new changes are added.
When referring to a derived character, we mean that all the subsequent species in the cladogram, after the character emerged, carry the trait.
In the exposed example, we need to describe characters expressed by protists, plants, fungi, and animals.
Eukaryotic organisms, autotroph or heterotroph. All of them have cell membranes, nuclei with DNA, and mitochondria.You can learn more about derived character at
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Darwin was influenced by many other scientists including the economist Malthus, who studied population size. Based on Malthus’ research, what did Darwin infer about why natural selection is a result of overpopulation? (Overpopulation: Too many animals)
a. When there was overpopulation, there were too many different species in one area.
b. When there was overpopulation, there was more food than is needed by a population.
c. When there was overpopulation, there were too few organisms to enable all to survive.
d. When there was overpopulation, there were more offspring than the environment could support.
Based on Malthus’ research, Darwin indicated that the process of natural selection is a result of overpopulation because d. When there was overpopulation, there were more offspring than the environment could support.
What is Darwin's evolutionary theory of natural selection?Darwin's evolutionary theory of natural selection makes reference to the differential survival and reproduction rate of the most adapted phenotypes in a given environmental condition, which depends on the maximization of the available resources for this environment.
Moreover, Thomas Malthus developed the so-called Malthusian model of growth, which indicates that food production may not be enough to keep up with the growth of a given population of people.
Therefore, with this data, we can see that Darwin's evolutionary theory of natural selection is based on the existence of limited resources and the competence between the organisms for such resources in particular environmental conditions and factors.
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Forested floodplain wetlands benefit from periodic flooding from rivers. When floodwaters spill into the wetland, they bring water and nutrients and leave both behind. But humans have often cut off floodplains from rivers by building roads, levees, berms, etc. Think about what would happen if a river could no longer flood into these areas. How would the resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream?
The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.
If a river can no longer flood into forested floodplain wetlands due to human interventions, it would have significant consequences for the downstream areas in terms of soils, hydrology, and life.Without periodic flooding, the increased amount of water and nutrients in the river would not be able to disperse and be deposited in the floodplain wetlands. As a result, downstream soils would experience a decrease in nutrient inputs, leading to decreased fertility and altered composition. The absence of regular flooding would disrupt the natural hydrological cycle, reducing the recharge of groundwater and altering the flow patterns in the river system. This could result in decreased water availability, increased erosion, and changes in the overall ecosystem dynamics downstream.The disruption of nutrient flows and hydrological patterns would also have a significant impact on the life forms downstream. Aquatic plants, fish, and other organisms that depend on floodplain wetlands for breeding, feeding, and shelter would face habitat loss and reduced food availability. This, in turn, could disrupt the food chain and impact the abundance and diversity of aquatic and terrestrial species in the downstream areas.The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.For more such questions on flooding
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Name the three most common
prokaryotic shapes?
A. bacteria, archaea, and protists
B. cocci, bacilli, and spirilla this
C. Neither of these
Answer: B. Cocci, Bacilli, and Spirilla
Explanation:
Explain which cells,tissues,or organs should be modified to lead to successful photosynthesis in animals or humans discuss how these compare to a plants leaves
cell are basic unit of life
To successfully achieve photosynthesis in animals or humans, modifications must be made to their cells, tissues, or organs involved in energy production and metabolic processes. One approach that has been proposed involves genetically modifying chloroplasts (organelles responsible for photosynthesis in plants) to enable them to function in animal or human cells.
What is the significance of chloroplast?Chloroplasts are found in the leaves of plants and are responsible for converting light energy into chemical energy via photosynthesis. However, they are also found in other plant tissues, such as stems and roots, which play a role in energy production and storage.
What are muscle cells responsible for?Muscle cells are responsible for movement and require significant energy to function. If modified to include chloroplasts, muscle cells could produce energy via photosynthesis, reducing reliance on other energy sources such as glucose.
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