Which of these are made of cells? (Pick all the correct items)
Your eyelashes, A blade of grass, A quartz crystal, The wing of a fly, A grain of sand, The feather of an owl, Water in a tidal pool, The tip of your nose, The horn of a goat, Your kidney, Your cell phone, A maple leaf, The claw of a crab, The sun, The petal of a rose. And please do not just put smiley faces or put on things that don't answer my question.
Answers
Answer:
Eyelashes, wing of a fly, feather of an owl, the tip of your nose, the horn of a goat, your kidney, a maple leaf, a blade of grass, claw of a crab, and petal of a rose.
Explanation:
You have to ask yourself on each one if it is living or non-living.
Related Questions
Think about how you obtain the energy you need to do everyday activities like doing chores, going to school, or playing sports. Write about it in the box below.
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Answer:
I get energy by sleeping at night and eating at least 3 meals a day everyday.
Explanation:
These penguins are all members of the species Aptenodytes patagonicus.
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Answer:
Organisms of the same species can live in different areas, while organisms of the same population live in only one area.
Explanation:
Answer:
Option D
Explanation:
Populations are all in one area
which anatomical structure below is not part of the respiratory (breathing) system? group of answer choices
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The answer is Trachea. Upper respiratory system includes the nasal chambers, the pharynx and the Larynx.
The trachea is windpipe that carries air and the respiratory gas in the air (i.e.breathing air). The trachea is most common route of air exposure and can go anywhere from the superior vena cava (that are large vein near the heart) to the base of lungs.
The nasal chambers are the two largest chambers in the respiratory system. And located near to the top of the head and those are filled with air.And talking about pharynx,the pharynx is a thin, mucus-secreting tube that extends from the throat to the nose and larynx is a tube that runs from the throat to the mouth.
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Mutations in the mitochondrial DNA can cause human disorders. What future approach involving nuclear transplantation might be available to treat mtDNA-based human disorders? O mitochondrial swapping n
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One future approach involving nuclear transplantation that might be available to treat mitochondrial DNA (mtDNA)-based human disorders is mitochondrial replacement therapy, also known as mitochondrial swapping or mitochondrial transfer.
Mitochondrial replacement therapy aims to address mtDNA mutations by transferring the nuclear DNA from an affected individual's egg or embryo into a donated healthy egg or embryo that has its own healthy mitochondria. This technique involves the following steps:
Nuclear DNA Extraction: The nucleus containing the majority of the genetic material is extracted from the egg or embryo of an affected individual.Donor Egg Preparation: A healthy donor egg is obtained from a woman with normal mitochondrial DNA. The nucleus of the donor egg is removed while leaving the healthy mitochondria intact.Implantation: The reconstructed egg, now containing the nuclear DNA from the affected individual and healthy mitochondria from the donor, is implanted into the uterus of the affected individual or a surrogate mother.It is worth noting that mitochondrial replacement therapy is a complex and evolving field, with ongoing research and ethical considerations. The approach is subject to regulations and guidelines set by various regulatory authorities in different countries.
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Full Question ;
"What future approach involving nuclear transplantation, such as mitochondrial swapping or mitochondrial replacement therapy, might be available to treat mtDNA-based human disorders?"
What is the expected genotypic ratio resulting from a heterozygous x heterozygous monohybrid cross?
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Answer:
Tutorial.
Explanation:
HELP ASAP ! Tall ( T ) is the dominant allele in pea plants , while short ( t ) is recessive . which of the following genotypes of a tall plant ?
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I need 20 words so here ya it’s D
Using what you know about plate boundaries, explain the tectonic movement that is occurring at the East African Rift Valley, and predict how the area may change in the future.
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Answer: The East African Rift Valley (EAR) is a developing divergent plate boundary in East Africa. ... The Nubian and Somalian plates are also separating from the Arabian plate in the north, thus creating a 'Y' shaped rifting system. These plates intersect in the Afar region of Ethiopia at what is known as a 'triple junction'. Hope this helps! <3
The tectonic movement that is occurring in the East African Rift Valley gradually develops plate boundaries within the region of East Africa.
What is the Tectonic movement?The tectonic movement may be defined as the migration of the plates that construct up the surface of the Earth's crust. The Earth is made up of roughly a dozen major plates and several minor plates. These plates are moved due to some extension of pressure applied on them.
Due to this gradual movement of plate tectonics, the area of the region may greatly change from physical as well as climatic perspectives. This is due to the Convection currents that drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle.
Therefore, the tectonic movement that is occurring in the East African Rift Valley gradually develops plate boundaries within the region of East Africa.
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Why is it important to base scientific theory and models on empirical evidence
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Answer: Empirical evidence is any information you can collect through the processes of observation, experimentation or the use of human senses. Acquiring empirical evidence is a vital step in the scientific method, as it gives researchers the opportunity to collect, organize and study any data that results from their work.
How are primary consumers different from secondary consumers?
a. primary consumers eat only plants: secondary consumers eat other comsumers.
b. primary consumers eat other consumers; secondary consumers eat only plants.
c. primary consumers eat plants and decompose matter;
d. primary consumers eat plants an decompose matter; secondary consumers eat plants and other consumers.
Answers
Answer:
A
Explanation:
Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants.
Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
Answers
Answer:
algal growth due to eutrophication
Explaination:
Eutrophication is where these nutrient rich compounds mix with nearby water sources and promote the growth of large amounts of algae. Algae go through respiration and take up the dissolved O2 in water which causes these areas to experience low O2 levels. Everything needs O2 to survive thus nearby organisms and plants die out creating dead zones.
Answer:
Eutrophication and Algal growth
Explanation:
I just got it right.
how reliable is drug testing? what variables may affect the results? (1-3 sentences please try)
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Please help, this determines how much work I do, allele chart.
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In a breed of dog, the gene for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur What is the most by explanation for the brown?
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The dog received a mutated gene
The dog only received one gene for fur color
The dog received two recessive genes for brown fur
The dog received one gene for brown fur and one gene for black fur
O
Answers
Answer:
the dog received 2 recessive genes for brown for
Explanation:
the only time a recessive trait will be shown physically is when the dog gets two recessive alleles
Answer: I believe its two recessive genes for brown fur
Explanation:
which of the mutation types is least likely to have a phenotypic effect?
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The type of mutation least likely to have a phenotypic impact is a silent mutation, sometimes referred to as a synonymous mutation. A form of point mutation known as a silent mutation does not alter the amino acid sequence of a protein.
This is due to the genetic code's degeneracy, which allows for the possibility of several codons encoding the same amino acid. Hence, a silent mutation that switches a codon from one that codes for an amino acid to another will not alter the structure or function of the protein. Silent mutations are therefore often regarded as neutral mutations that do not significantly affect the phenotype. Large, intricate molecules consisting of numerous long chains of amino acids make up proteins. These are crucial macromolecules that have a variety of functions in the human body, including immunological protection, signalling, structural support, and enzymatic catalysis. Almost all physiological processes involve proteins, and each protein has a different amino acid sequence that determines its distinct functions.
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list the three ways volcanic moutains can form
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Answer:
The world's tallest mountain ranges form when pieces of Earth's crust—called plates—smash against each other in a process called plate tectonics, and buckle up like the hood of a car in a head-on collision.
Explanation:
Volcanoes can form at a mid-ocean ridge. When the two plates separate magma fills the void and a volcano is produced. These chains of volcanic mountains are the longest mountain chain in the world.
Volcanoes can also form at a hot spot.
A red bloom cell has diameter of 0.008mm. a model of the red blood cell has a diameter of 80mm. What is the scale of the model
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Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.
Scale = Model diameter / Actual cell diameter
Substituting the given values:
Scale = 80mm / 0.008mm
Simplifying the expression:
Scale = 10,000
Therefore, the scale of the model is 1:10,000.
1. Identify the diameter of the red blood cell: 0.008mm.
2. Identify the diameter of the model: 80mm.
3. Use the formula Scale = Model diameter / Actual cell diameter.
4. Substitute the values into the formula: Scale = 80mm / 0.008mm.
5. Simplify the expression to find the scale: Scale = 10,000.
6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.
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explain natural selection (simply)
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Answer:
Natural selection can act on any heritable phenotypic trait, and selective pressure can be produced by any aspect of the environment, including mating selection and competition with members of the same or other species. However, this does not imply that natural selection is always directional and results in adaptive evolution...
Explanation:
Dose that help you???
conservative estimates indicate that well over ninety percent of all organisms that have ever lived on the planet are now extinct. conversely, there is a tremendous amount of biodiversity that exists today, as 1.7 million species have been described by science thus far, and yet this is a small percentage of the actual number of species currently alive. how can we reconcile these two facts?
Answers
Conservative estimates suggest that over 90% of all organisms that have ever lived are now extinct, while simultaneously, there is remarkable biodiversity with 1.7 million species described by science, representing only a small fraction of existing species. Reconciling these two facts involves understanding the evolutionary process and the immense timescale of Earth's history.
Over millions of years, species undergo adaptation and diversification, driven by natural selection, leading to the vast biodiversity we see today. Extinction events, such as climate change or natural disasters, contribute to the high percentage of extinct organisms. However, these events also open up new ecological niches, allowing the survivors to adapt and thrive.
Moreover, the sheer amount of time Earth has existed allows for numerous species to emerge, evolve, and go extinct. With constant speciation and extinction events, a considerable number of extinct organisms is expected, while simultaneously allowing for present-day biodiversity.
Thus the high extinction rate and existing biodiversity can be reconciled through understanding the dynamics of evolution, the impact of extinction events, and the vast timescale of Earth's history.
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What is the difference between a bacteria with id50 of 100, and bacteria with a id50 of 100,000?
Answers
The content you provided, "content loaded," does not contain any specific information related to the difference between two bacteria strains with different ID50 values. However, I can explain what ID50 means and how it relates to bacteria.
ID50 (infectious dose 50) is a term used in microbiology to quantify the infectivity or virulence of a microorganism, such as bacteria. It represents the number of microorganisms or pathogens required to infect 50% of the individuals exposed to them. Essentially, it measures the potency of a microorganism in causing infection.
Now, let's compare a bacteria strain with an ID50 of 100 to another strain with an ID50 of 100,000:
1. Bacteria with an ID50 of 100: This means that, on average, it takes around 100 bacteria to cause an infection in 50% of the exposed individuals. It indicates that this strain is relatively more potent or virulent compared to the other strain.
2. Bacteria with an ID50 of 100,000: In this case, it takes a significantly larger number of bacteria, approximately 100,000, to infect 50% of the exposed individuals. This indicates that the strain is relatively less potent or virulent compared to the strain with the ID50 of 100.
In summary, the difference between these two bacteria strains lies in their infectivity or virulence. The strain with the lower ID50 value (100) is more potent and requires a smaller number of bacteria to cause infection, whereas the strain with the higher ID50 value (100,000) is less potent and requires a larger number of bacteria to cause infection.
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Tell me if you think caecilians are amphibians, reptiles, or fish.
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Answer:
Amphibians
Explanation:
the pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs, such as leg bone length and skull size, may be explained because
Answers
Pleiotropy is a genetic phenomenon in which a single gene affects multiple traits. In dogs, there are certain genes that control multiple skeletal traits, such as leg bone length and skull size.
This means that when one of these genes is mutated, it can have effects on various parts of the dog's skeletal system. The reason for this pleiotropy is likely due to the fact that many of these traits are interconnected and have a common developmental pathway. For example, changes in skull size may also affect the length of the bones in the legs because they share common signaling pathways during development. Additionally, these traits may be controlled by master regulatory genes that have broad effects on multiple parts of the body. These genes can influence the development of different tissues and organs, leading to the pleiotropic effects observed in some dogs.
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Paurelia
POPULATION SIZE
_ caudatum
2
4
6
8
JO
12
14
16
The graph here shows the population growth curves of Paramecium aurelia and
Paramecium caudatum cultures after they were mixed together. This graph can be used
to illustrate the principle of:
Answers
Answer:
mutualism
Explanation:
cuz
The molecular view shown is best described by which state of water?
(A) ice
(B) steam
(C) liquid water
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The molecular view would probably of (A) ice, as it is the most compact and dense form of water. With steam or liquid water, the molecular view would show a less compact view, with more space and less molecules to allow movement of the particles.
Ocean currents are
examples of
A. Conduction
B. Convection
C. Radiation
Answers
44) the ph of the stomach is low enough and the protease activity high enough that the cells of the stomach itself are at risk of self-digestion. this is prevented by which of the following? a) a sufficient colony of h. pylori b) mucus secretion and active mitosis of epithelial cells c) high level of secretion by chief cells d) high level of secretion from parietal cells e) secretions entering the stomach from the pancreas
Answers
The cells of the stomach are at risk of self-digestion due to the low pH and high protease activity in the stomach. this is prevented by given mechanisms: Mucus secretion and active mitosis of epithelial cells, High level of secretion by chief cells, High level of secretion from parietal cells, and Secretions entering the stomach from the pancreas.
1) Mucus secretion and active mitosis of epithelial cells: The stomach lining secretes a thick layer of mucus that acts as a protective barrier between the stomach cells and the acidic environment. Additionally, the epithelial cells in the stomach lining undergo frequent mitosis to replace any damaged cells, further protecting against self-digestion.
2) High level of secretion by chief cells: Chief cells in the stomach lining secrete pepsinogen, an inactive form of the enzyme pepsin. Pepsinogen is activated by the low pH in the stomach, and it plays a key role in breaking down proteins.
3) High level of secretion from parietal cells: Parietal cells in the stomach lining secrete hydrochloric acid (HCl), which lowers the pH of the stomach. The low pH is essential for the activation of pepsinogen to pepsin and the breakdown of proteins.
4) Secretions entering the stomach from the pancreas: The pancreas secretes digestive enzymes, including proteases, into the small intestine. These enzymes are not active in the stomach, so they do not pose a risk of self-digestion.
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Fill in the blank: ______ is the process that splits rock when water seeps into cracks, then freezes and expands.
YES I WILL HAVE A LOT OF FILL IN THE BLANK GET READY
Answers
Answer:
Freeze-thaw
Explanation:
Answer:
frost wedging
Explanation:
trong chương trình lớp 7 các em đã học các ngành động vật nào?
Answers
Answer:
what's this can u explain me in hindi pls
1. list several ways that microbes affect our life. 2. recognize the system of scientific nomenclature. . differentiate among the major groups of microorganisms. 4. identify the contributions to microbiology of van leeuwenhoek, pasteur, lister, koch, jenner, and fleming. 5. list at least four beneficial activities of microorganisms. 6. describe several infectious diseases. 7. define emerging infectious disease.
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Microbes affect our life in numerous ways: They play a crucial role in the environment by participating in nutrient cycling, decomposition, and soil formation.
They are essential for various industrial processes such as fermentation in food production, bioremediation of pollutants, and production of pharmaceuticals.
Some microbes are used in the production of antibiotics, enzymes, vitamins, and other valuable products.
Microbes contribute to human health by maintaining a balanced microbiota in our gut, aiding in digestion, and supporting our immune system.
They are involved in food preservation and spoilage, affecting the taste, texture, and safety of food products.
Microbes can cause diseases, both in humans and animals, leading to significant impacts on public health and the economy.
The system of scientific nomenclature, specifically in microbiology, involves the use of binomial nomenclature. Organisms are assigned a two-part scientific name comprising the genus and species. This naming system ensures consistency and clarity in identifying and classifying microorganisms.
Major groups of microorganisms can be differentiated as follows:
Bacteria: Single-celled organisms with prokaryotic cellular structure, diverse shapes, and sizes. They can be beneficial, commensal, or pathogenic.
Archaea: Similar to bacteria in cellular structure but genetically distinct. They are found in extreme environments and play important ecological roles.
Fungi: Eukaryotic organisms that include yeasts, molds, and mushrooms. They can be beneficial as decomposers, food sources, or harmful as pathogens.
Protozoa: Single-celled eukaryotic organisms that are diverse in shape and motility. They can be free-living or parasitic.
Algae: Photosynthetic eukaryotic organisms that range from unicellular to multicellular forms. They play a crucial role in aquatic ecosystems and can produce oxygen and food.
Viruses: Non-living entities that require host cells to replicate. They consist of genetic material (DNA or RNA) enclosed in a protein coat and can cause various diseases.
Contributions to microbiology by notable individuals:
Anton van Leeuwenhoek: Developed the first practical microscope and made important observations of microorganisms, which laid the foundation of microbiology.
Louis Pasteur: Demonstrated the role of microbes in fermentation, proposed the germ theory of disease, developed vaccines, and introduced pasteurization.
Joseph Lister: Pioneered antiseptic techniques in surgery, reducing infections and improving surgical outcomes.
Robert Koch: Developed Koch's postulates, a set of criteria to establish the causative relationship between a microorganism and a disease.
Edward Jenner: Introduced the smallpox vaccine, one of the first successful vaccines in history.
Alexander Fleming: Discovered the antibiotic properties of penicillin, leading to the development of numerous lifesaving antibiotics.
Beneficial activities of microorganisms include:
Decomposition and nutrient recycling in the environment.
Production of food and beverages through fermentation processes.
Synthesis of antibiotics, enzymes, vitamins, and other valuable products.
Bioremediation of pollutants and waste treatment.
Contribution to agricultural practices, such as nitrogen fixation by certain bacteria.
Mutualistic symbiotic relationships with plants and animals, aiding in digestion and providing nutrients.
Infectious diseases are caused by pathogenic microorganisms that invade and multiply within the host's body, leading to various symptoms and health consequences. Examples include:
Bacterial infections: Tuberculosis, pneumonia, urinary tract infections.
Viral infections: Influenza, common cold, HIV/AIDS.
Fungal infections: Candidiasis, ringworm, athlete's foot.
Parasitic infections: Malaria, giardiasis, trichomoniasis.
An emerging infectious disease refers to a disease that has newly appeared in a population or has existed but is rapidly increasing in incidence or geographic range. These diseases often pose a significant public health threat due to their novelty, potential for rapid spread, and lack of widespread immunity. Examples include COVID-19, Ebola, Zika virus, and SARS. Monitoring and studying emerging infectious diseases are essential to better understand their causes, transmission patterns, and develop effective prevention and control strategies.
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Define the term "characteristic feature".Does it refer only to differences between members of the same species?
Answers
Characteristic feature is a trait or quality.
Characteristic traits can be seen in members of different species, it can also be seen between members of the same species, these include cellular organization, homeostasis, metabolism etc.
What is the relationship between light intensity and ATP production?
Answers
Answer:
The more light there is, the more chlorophyll absorbs it, which means there are more electrons being transported from the chlorophyll, and while they are being transported, they create not only more ATP but NADPH2
Explanation: