The seperation of gametes reduces the number of chromosomes into half.
Why is the number of chromosomes reduced in meiosis?The majority of eukaryotes, including humans, undergo meiosis, which results in a reduction in the number of chromosomes. Because the gametes produced with half the number of chromosomes as their parent cells can mate to create a diploid zygote, it enables diploidy.
The seperation of gametes called the gametogenesis which reduces the number of chromosomes diploid to haploid.
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please help, i need to finish by tonight!!
Cellular respiration uses _______ and ________ to produce carbon dioxide, water, and energy.
Answer: glucose and oxygen.
Explanation:
What are representative organisms from the archea and eukarya, fungi, and protista?
In 1969, R.H. Whittaker proposed a classification of five kingdoms. His classifications of the kingdoms were Monera, Protista, Fungi, Plantae, and Animalia. He primarily uses cell structure, body organization, mode of nourishment, reproduction, and phylogenetic linkages as classification criteria.
Representative organisms of Archea: Pyrolobus fumarii, which has a maximum survival temperature of 113 °C (235 °F), and species of Picrophilus, which were isolated from acidic soils in Japan and are the most acid-tolerant creatures known—capable of growth at about pH 0—are all members of the archaea.
Representative organisms of Eukarya: Prokaryotes are single-celled microorganisms that lack nuclei, such as bacteria and archaea, while Eukaryotes, which include ourselves and all other animals, plants, fungi, and single-celled protists, have nuclei that serve to separate their DNA from the rest of the cell.
Representative organisms of fungi: Yeasts, rusts, smuts, mildews, molds, and mushrooms are all examples of fungi. Additionally, there are several fungus-like species that do not actually belong to the kingdom Fungi but are frequently referred to as fungi, such as slime molds and oomycetes (water molds).
Representative organisms of protista: The protists are a varied group of eukaryotes that are indistinguishable from fungi, animals, or plants. Amoebae, red algae, dinoflagellates, diatoms, euglena, and slime molds are among the creatures that belong to the kingdom of Protista.
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You want to create a graph that shows your height over 12months period what type of graph would you use
If you want to create a graph that shows your height over 12 months period, the type of graph that is used is a line and bar graph. Both together are called combination graphs for visualization.
What are graphs?Line graphs are helpful for showing more subtle alterations to a trend over time. For comparing more significant changes or differences in data between groups, bar graphs are preferable, and they show the data among categories.
Thus, line and bar graphs are the types of graphs that are used to construct a graph that displays your height over a 12-month period.
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Look at the diagram below. The ammonium hydroxide moves down the tube. What process causes this movement?
Answer:
Diffusion
Explanation:
Ammonium hydroxide moves down the tube by diffusion from the higher concentration, the soaked cotton wool, to the lower concentration in the glass tube.
Which of the following is an example of evidence from comparative embryology that supports biological evolution?
Different species with similar development patterns
Similar species with different geographic distributions
Different species with similar metabolic processes
Similar species with different reproduction mechanisms
Answer: Similar species with different geographic distributions
Explanation:
Vinegar is made by inoculating aerobically fermented material with anaerobic bacteria.
a. true
b. false
''Vinegar is made by inoculating aerobically fermented material with anaerobic bacteria " the statement is false.
How vinegar is fermented and how it is made with bacteria?Two stages of fermentation are used to create vinegar. The first step in the formation of alcohol is tge consumption of fruit and grain sugars by yeast. Alcohol is produced by the yeast as it consumes the produces inherent carbohydrates. This is the process that we call as alcohic fermentation. Vinegar is produced when acetic acid bacteria act on alcohic beverages such as wine. Specific oxidation reaction occur through oxidative fermentation, which creates vinegar as by product.
The statement is false because it is made by the conversion Of ethyl alcohol to acetic acid by genus Bacteria.
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A study by a watchdog group at georgetown university found that ____ percent of alcohol advertising was more likely to be seen by youths than adults.
a. 10
b. 50
c. 75
d. 25
A study by a watchdog group at georgetown university found that 25 percent of alcohol advertising was more likely to be seen by youths than adults.
Underage drinking:Underage drinking is a serious public health issue in the US. Alcohol, which poses major risks to one's health and safety, is the drug that young people in America use the most frequently. Everyone could be affected by the consequences of underage drinking, regardless of age or past drinking habits. Direct or indirect effects of underage drinking on aggressive behavior, property damage, injuries, violence, and fatalities touch us all. This is a problem that affects many families, not just a few. People between the ages of 12 and 20 consume 4% of the alcohol consumed in the US. Young people drink less frequently than adults, but when they do, they drink more. More than 90% of all alcoholic beverages consumed by young people are consumed in binges.Learn more about the drinking problem with the help of the given link:
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Can someone please help me?
Answer:
Explanation
put this in a better way
Explanation:
it's not clear snap it well
Which organelle would play the most direct role in eliminating bacteria engulfed by a phagocytic white blood cell?.
Lysosomes would play the most direct role in eliminating bacteria engulfed by a phagocytic white blood cell.
An organelle of a cell that is membrane-bound and houses digestive enzymes is called a lysosome. Numerous cell processes involve lysosomes. They disassemble extra or worn-out cell components. They could be utilized to eliminate invasive bacteria and viruses.lysosome, a subcellular organelle that is present in almost all eukaryotic cells (cells with a distinct nucleus) and is in charge of breaking down macromolecules, defunct cell components, and microbes. Each lysosome is enclosed by a membrane that uses a proton pump to keep the interior of each lysosome acidic. Numerous hydrolytic enzymes (acid hydrolases) are found in lysosomes and break down macromolecules such nucleic acids, proteins, and polysaccharides. Only the acidic interior of the lysosome is where these enzymes are active.Therefore, lysosome is the correct answer.
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What vitamin acts as a coenzyme in cell respiration and is important in alcohol fermentation?
Vitamin B1 also known as thiamine acts as a coenzyme in cell respiration and is also important in alcoholic fermentation.
Certain organic compounds are required in small amounts by our bodies but their deficiency of them causes diseases. Such compounds are known as vitamins.
The term vitamin comes from the two words vital and amine because some of them contain an amino group.
The vitamins are named after letters of the English alphabet like A, B, C, D, E, and K.
Vitamin B is of different types like B1, B2, B6, B12, etc.
Out of different types of Vitamin B, Vitamin B1(Thiamine) is the only one that acts as a coenzyme in cell respiration and is also important in alcoholic fermentation.
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Which of the following best describes these biomolecules?
a. Molecule X and Molecule Y are both carbohydrates.
b. Molecule X is a nucleic acid, and Molecule Y is a carbohydrate.
c. Molecule X and Molecule Y are both nucleic acids.
d. Molecule X is a carbohydrate, and Molecule Y is a nucleic acid.
The following which best describes these biomolecules is that Molecule X is a carbohydrate, and Molecule Y is a nucleic acid and is therefore denoted as option D.
What is a Biomolecule?They are referred to as organic substances and are usually made from cells and living organisms. Examples include carbohydrate, nucleic acid etc.
Molecule X is referred to as a carbohydrate because it contains an aldehyde group and also elements such as carbon, hydrogen and oxygen while nucleic acids contain base pairs and a deoxyribose sugar as shown in the diagram below.
This is therefore the reason why option D was chosen as the most appropriate choice.
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A main reason that environmental scanning is important is so that businesses can be aware of.
Because of the quick changes in the environment, which have a big impact on how the company firm operates, environmental scanning is important. Identification of strengths, weaknesses, opportunities, and dangers is aided by analysis of the business environment.
What is environmental scanning ?Environmental scanning is the continuous observation of patterns and events in the internal and external environments of an organisation that have an impact on its success now and in the future. The findings are very helpful in defining objectives and tactics.
Undirected seeing, conditioned viewing, enacting, and searching are the four modes of scanning that can be distinguished, depending on an organization's assumptions about the environmental analyzability and the degree to which it interferes with the environment to understand it.Learn more about Environmental scanning here:
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several food chain overlap to form a
Answer:
either food web or ecosystem
What occurs in the light-independent reaction of photosynthesis?
Answer:
Light is absorbed by complexes made up of chlorophylls and proteins called photosystems, which are located in the chloroplasts.
Explanation:
what two cell structures are not found in prokaryotic cells
why doesn't GTP, CTP, and UTP serve as energy store like ATP?
A student is looking at a diagram of a cell. She notices that it has multiple nuclei. What
type of cell is it?
Bacteria
Plant
Fungus
Animal
The type of cell having multiple nuclei is fungus cell.
The formation and growth of multinucleated muscle fibers or myotubes occurs through a process known as myogenesis. During myogenesis, mononucleated myoblasts withdraw from the cell cycle, initiate muscle-specific gene expression, and fuse to form nascent multinucleated myofibers.
Multinucleated giant cells are important mediators of tissue remodeling and repair, and are also involved in the removal or sequestration of foreign bodies, intracellular bacteria, and non-phagocytic pathogens such as parasites and fungi. Myofibrils are not muscle cells. Many myofibrils make up a muscle cell known as a muscle fiber. And muscle fibers have multiple nuclei. And since it was formed by the fusion of multiple muscle cells, it has multiple nuclei.
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Scientists sometimes build conceptual models rather than physical models because in some cases it is easier to experiment on a conceptual model than a physical model. true false
It is true that scientists sometimes build conceptual models rather than physical models because in some cases it is easier to experiment on a conceptual model than a physical model.
Conceptual models are ethereal, psychological depictions of proper task execution. In order to systematize processes, people employ conceptual models instinctively and intuitively.
Reasons why the answer is true:
First off, it's because it might occasionally be challenging or impossible to create a physical model of a naturally occurring occurrence. Second, since testing ideas on a conceptual model is sometimes simpler than testing them on a physical one. Thirdly, because in some circumstances conceptual model development is required before physical model construction.
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Epithelial membranes do not include? a. mucous membranes. b. cutaneous membranes. c. serous membranes. d. synovial membranes.
According to the given statement Epithelial membranes do not include synovial membranes.
The correct option is D.
What materials make up epithelial membranes?The epithelium that makes up the epithelial membrane is adhered to a layer of connective tissue, such as your skin. Additionally made up of connective and epithelial tissues is the mucous membrane.
Which four types of epithelial membranes are there?Epithelium and supporting connective tissue make up the thin structures known as epithelial membranes. They line body cavities and coat body surfaces. Serous, mucous, epidermal, and synovial membranes are the four different types of membranes.
What use does epithelial tissue function?The epithelium, which also lines the bodily cavity, creates the skin's outer layer. It creates the lining of the reproductive, digestive, and excretory tracts. They carry out numerous tasks, including absorption, defense, sensing, and secretion.
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Write instructions for a specific task that you would like to teach someone.
This could be instructions on how to adjust settings on a phone or computer or how to cook/bake something
Or anything else you know how to do.
What type of bonds does dna ligase create between adjacent nucleotides? hydrogen phosphodiester ionic
The type of bonds DNA ligase creates between adjacent nucleotides is called phosphodiester bonds.
DNA ligase is a special type of enzyme that helps in joining the strands of DNA together with the help of phosphodiester bonds.
In RNA and DNA, phosphodiester linkage is present between 3 and 5 carbon atoms of deoxyribose sugar in DNA and ribose sugar in RNA molecules.
Moreover, in living things, the ligase enzyme repairs both single-stranded and double-stranded molecules in double helix DNA.
In short, phosphodiester bonds are formed due to condensation between phosphate groups and hydroxyl groups of sugar compounds.
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Match them with the answers please and thank you brainless will be gives to the right person
Answer:
1) Alkali earth metals, group 2 - not as soft as Alkali metals. Reactive metals, but not as reactive as Alkali metals.
2) Nobel Gases, group 18 - Very unreactive nonmetals.
3) Alkali metals, group 1 - very reactive and soft metals.
4) Halogens, group 17 - very reactive nonmetals.
Most fats and fat-soluble nutrients are absorbed and carried through the ______ system.
Most fats and fat-soluble nutrients are absorbed and carried through the lymphatic system.
The lymphatic system has many functions, one of them being the absorption of fatty acids and fat-soluble vitamins from the digestive system. The lining of the small intestine contains tiny finger like projections called the microvillus. Inside the microvillus, there is a lymphatic vessel called the lacteal.
After digestion, while most nutrients are absorbed into the blood vessels, fatty acids and fat-soluble vitamins are absorbed into the lacteal. This forms a milky white liquid due to the high fat content called chyle. The chyle is then carried through the lymphatic system into the thoracic duct, after which it is deposited into the heart to be absorbed by the blood.
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If an organism's single cell does not contain a nucleus, it can only be classified into the Archaea or Bacteria Kingdoms.
options:
True
False
Answer:
True
Explanation:
Prokaryotes or unicellular organisms, without a nucleus, are categorized in two different kingdoms: Eubacteria and Archaebacteria or simply, bacteria and archaea, respectively. Sometimes these two kingdoms are also clubbed together as Monera. Unicellular organisms with a nucleus are part of the kingdom Protista.
W
Which term matches this definition?
found in all cells and serves as the site for
protein synthesis
A. cytoplasm
B. DNA
C. eukaryote
D. ribosomes
Mucosal cells make up the mucosa, which lines the lumen. Mucosal cells are in direct contact with food and harsh digestive secretions. How long do the mucosal cells live?.
Answer:Mucosal cells make up the mucosa, which lines the lumen. Mucosal cells are in direct contact with food and harsh digestive secretions. How long do the mucosal cells live?.
Explanation:
Speculate as to why the tissue level of organization is necessary( why can not one big cell take place of a tissue?)
The tissue level of organization is necessary because one big cell cannot perform the various functions that tissue is capable of doing.
Tissue is the level of biological organization that contains a group of specialized cells performing a specific function. A single big cell will not be able to perform specialized functions that a specific tissue can. Hence, the level of tissue is important for the proper functioning of the body.
Also, it is due to the tissue level of organization that the functions are divided for cells. A big cell would have to do all the functions that different tissues do. It is due to the tissue level that organs are formed which in turn form organ systems.
Hence, the biological organization level of tissue is important for the division of labor and for cells to perform specialized functions.
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Methylene blue is the basic dye that we will use to simple stain. what property does a basic dye have that allows it to penetrate a cell?
Different types of cells are frequently stained with methylene blue. Positively charged and a basic dye, methylene blue. When a basic dye is used for staining, it adheres to the cell wall and is referred to as a positive stain since most cells (such as bacteria) have a negative charge in their cell walls.
Therefore, a fundamental dye contains a positive chromophore that enables it to permeate and be effectively absorbed by the cells or organisms being stained and visualized under a microscope.Negatively charged DNA reacts with methylene blue, attracting a basic dye with a positive charge that colors the nucleus of cells.To know more about basic dye visit:
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What byproduct of fermentation creates the characteristic holes in swiss cheese?
a. carbon dioxide
b. lactic acid
c. ethyl alcohol
d. acetic acid
Answer: A: Carbon Dioxide.
Explanation: Hope this helps <33
Living things are divided into three different domains. Which of these domains are classified as prokaryotes?.
Bacteria and Archaea are the domains that are classified as prokaryotes.
Cellular life is divided into three main domains which are Bacteria, Archaea, and Eukaryotes.
In the field of science, prokaryotic organisms can be described as organisms that lack a well-defined nucleus and other membrane-bound organeeles. Organisms from the domain archaea and bacteria belong to prokaryotes. Examples of prokaryotes include cyanobacteria, E. coli, etc.
The archaea contain a wide range of organisms that can survive in extreme conditions.
The prokaryotes have a simple body structure and their genetic material is present in the nucleoid region of the cytoplasm of the cell. On the contrary, the genetic material of eukaryotes is well protected in the nucleus of the cell.
Although a part of your question is missing, you might be referring to this question:
Living things are divided into three different domains. Which of these domains are classified as prokaryotes?
A. Bacteria and Fungi
B. Bacteria and Eukarya
C. Archaea and Eukarya
D. Bacteria and Archaea
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