26. Mendel took the pollen from a tall pea plant and pollinated the flower of ashort pea plant. When he did this, he removed the male parts of the flower onthe short plant. Why was it important that he remove the male parts from theflower of the short plant?A. because he wanted to prevent self-pollinationB. because the short plant was heterozygousC. because he wanted to prevent the development of seeds
Answers
the correct option is A. because he wanted to prevent self-pollination
Related Questions
Question
Sammi is studying the interaction of the digestive and circulatory systems in the human body. She has listed
processes that occur in each of the systems. Put the processes in order to describe the interaction between these
two systems.
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Incomplete question. The remaining part of the question read;
Put the processes in order to describe the interaction between these two systems.
Then Blood is pumped through the circulatory system to deliver nutrients to other organs. Digestive processes break nutrients down in the mouth, stomach, and small intestine.Nutrients are ingested at the mouth. Nutrients enter the capillaries of the circulatory system.Nutrients diffuse through the villi of the small intestine.Explanation:
The correct order of processes:
Nutrients are ingested at the mouth. Digestive processes break nutrients down in the mouth, stomach, and small intestine.Nutrients diffuse through the villi of the small intestine.Nutrients enter the capillaries of the circulatory system.Then, Blood is pumped through the circulatory system to deliver nutrients to other organs.So, the first sequence begins when nutrients from the food we eat enter the mouth. Our digestive system begins to work as we chew the food using our teeth. When the food is swallowed into the stomach the digestive process continues until nutrients contained in the food are then diffused or absorbed by the Villi; a part of our small intestine, to be used by other body organs. Then, Blood is pumped through the circulatory system to deliver nutrients to other organs.
PLEASE HELP (you’ll get 22 points for helping me). • 1 how an organism makes a living or fills a role
O B) habitat
O D) niche
O C) emigration
O A) endangered species
Answers
Answer:
habitat
Explanation:
I'm not that smart but I think when a organism adapts to a living is a habitat
4. Identify Patterns. Scientists studying great white sharks estimate that a population of 15,000 seals supports fewer than 100 sharks during the summer. What conclusion can you draw about the relationship of energy flow and the number of top-level consumers? Explain.
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The link between energy flow and the number of top-level consumers in an ecosystem is illustrated by the modest number of great white sharks in proportion to the enormous number of seals in this scenario.
What is the conclusion?Seals are the main eaters in this ecosystem, consuming plankton and tiny fish from lower trophic levels. The highest tier of consumers, great white sharks eat seals.
The amount of energy available to the following trophic level declines as energy moves up the food chain. This is brought on by energy losses from respiration, waste, and improper digestion.
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organization of human nervous system
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which statement best describes the nucleaus a.)to hold a plants cells DNA b.)to hold a plants cell DNA c.)to hold all types of cells DNA D.)to hold both plants and animals cells DNA
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Answer: B
Explanation:
Explain how different links can show a relation between two species. Describe evidence that shows other correlations and causations between the species.
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Different links show relationships between two species. In the scientific world, there are three types of links, including mutualism, parasitism, and commensalism.
Mutualism is a relationship in which both species benefit. Parasitism is where one species benefits, and the other is harmed. Commensalism is a relationship in which one species benefits, and the other is not harmed or helped.One example of a mutualistic relationship is the bee and flower relationship. Bees collect nectar and pollen from flowers for their food, while at the same time, the bee helps in pollination. The bee gets food from the flower, and the flower is pollinated. This is a mutualistic relationship. A parasitic relationship is the relationship between tapeworms and humans. Tapeworms live inside the host and get their food from the host, thereby, causing harm to the host. Evidence that shows correlation and causation between the species includes physical changes in the organism or adaptations to the environment. For example, an animal that feeds on a certain plant may evolve to have a longer tongue to reach the nectar of that plant. In summary, different links show relationships between species, including mutualism, parasitism, and commensalism. The evidence for the correlation and causation between species includes physical changes or adaptations in the organism or environment.For more questions on species
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I need help please guys help me
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Answer:
Choose a specific topic related to nutrition, and do some research on it (Wikipedia is always a good place to start). Maybe look at a few health blogs for inspiration and just to see the writing style (be sure not to copy them though!)
Answer:
Your topic (Nutritional blog post) explain the benefits of having proper nutrition and why should we do it. List down items we may sacrifice (ex. eating junk food) but the good effects this will bring us. Cite what will happen if we have healthy nutrition and back it up with evidence (Ex. A professional science study in 1993 has found that people who have healthy nutrition are less likely to disease [THIS IS ONLY EXAMPLE!]) Next, recommend some healthy foods or make a nutritional health diet for all the days in the week, balancing carbohydrates and giving the right amount of nutrition and calories.
Explanation:
I did not write my own blog post because I feel that you should not rely on brainly too much for your answers, but here are some tips!
If you found this helpful, please [thanks] or [rate] If you are satisfied with my answer please mark as [brainliest]
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Which of the following would be an example of an R-selected species?
Answers
An example of an R-selected species would be one that produces a large number of progeny with small size. So, the correct option is C.
R-selected species are characterized by their reproductive strategy, which focuses on producing a large number of offspring with relatively small size. These species prioritize quantity over quality when it comes to offspring production.
Option ''Large number of progeny with small size'' represents an example of an R-selected species. These species typically have a high reproductive rate and invest minimal resources in individual offspring. By producing a large number of progeny, they increase the chances of survival and successful reproduction in unpredictable or unstable environments.
In contrast, options A) Small number of progeny with small size and B) Small number of progeny with large size represent strategies more commonly associated with K-selected species. K-selected species prioritize quality over quantity, producing fewer offspring but providing them with greater parental investment and resources, resulting in larger size and higher survival rates.Option D) Large number of progeny with large size is less commonly observed in nature and does not align with the reproductive strategy of either R-selected or K-selected species.Therefore, the correct option is C.
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Complete Question:
Which of the following would be an example of an R-selected species?
A) Small number of progeny with small sizeB) Small number of progeny with large sizeC) Large number of progeny with small sizeD) Large number of progeny with large sizeCan you please give me an example of a cladogram Using the information and the traits present in the various organisms to create a cladogram with labeled branches. Be sure to show when the traits evolved in your cladogram.
Frog-vertebrae, four limbs
Rodent- vertebrae, four limbs, amniotic egg, hair/fur
Lizard- vertebrae, four limbs, amniotic egg , and egg shells
Gorilla- vertebrae, four limbs, amniotic egg,hair/fur
Fish- vertebrae
Bird- vertebrae, four limbs, amniotic egg, and egg shells
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A cladogram showing the evolution of traits in the mentioned organisms is given below in the image
What is shown in the cladogram?The common progenitor of all living entities is situated at the foundation of this cladogram. The initial division point directs toward fish that have a backbone.
The succeeding point of divergence signifies the emergence of amphibians encompassing frogs, that acquired vertebrates and four limbs. Another branch on the diagram indicates the evolution of reptiles, illustrated by lizards, which acquired new traits such as amniotic eggs and egg shells.
The subsequent juncture of division symbolizes the point where mammals and reptiles diverged from each other. Mammals, comprising of species such as rodents and gorillas, possess the common characteristics of having vertebrae, four extremities, amniotic eggs, and hair/fur.
The final category signifies the advancement of avian species, which acquired amniotic eggs and hard egg casings in conjunction with their pre-existing characteristics.
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What spheres are affected by pesticides? Is the atmosphere, geosphere, hydrosphere, and biosphere affected by pesticides?
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Why is NAD+ so important if the cell takes the anaerobic pathway, so glycolysis to fermentation? Does the atp made in glycolysis depend on the NAD+ conversion to NADH in the first step? I am confused on why NAD+ is so important to atp production
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Answer:
NAD+ (nicotinamide adenine dinucleotide) is indeed crucial for ATP production, even in anaerobic pathways such as glycolysis followed by fermentation. Allow me to explain the significance of NAD+ and its role in ATP production.
During glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The conversion of NAD+ to NADH occurs during the oxidation of certain molecules, including glucose, in the pathway. This conversion is essential because NADH carries high-energy electrons that can be used in subsequent steps to generate more ATP.
In aerobic respiration, NADH is further utilized in the electron transport chain (ETC) within the mitochondria. The ETC transfers electrons from NADH to oxygen, generating a significant amount of ATP through oxidative phosphorylation. However, in anaerobic conditions where oxygen is limited, like during fermentation, the ETC cannot function.
Here's where NAD+ becomes critical. In order to keep glycolysis running and continue generating ATP, the NADH produced during glycolysis must be converted back to NAD+. This allows glycolysis to continue producing ATP, even without the presence of oxygen. Without a mechanism to regenerate NAD+, glycolysis would halt due to a lack of NAD+, leading to a severe reduction in ATP production.
Fermentation pathways differ depending on the organism, but they all involve the regeneration of NAD+. For example, in lactic acid fermentation, pyruvate is converted into lactate, which involves the transfer of electrons from NADH to pyruvate, regenerating NAD+. Similarly, in alcoholic fermentation, pyruvate is converted into ethanol, again regenerating NAD+.
In summary, NAD+ is essential in anaerobic ATP production because it serves as a coenzyme that accepts electrons and facilitates the conversion of NADH back to NAD+. By regenerating NAD+, cells can sustain glycolysis and continue producing ATP, even in the absence of oxygen.
Check all that are true of the following scenario.
An archer strings an arrow on a bow and draws the string back. Aiming the bow
upwards at a 45 degree angle, the archer pauses with arms locked into position and
then releases the string. The arrow flies upwards making an arc and then sticks into
the trunk of a tree with an audible thud.
At least four different types of energy are illustrated in this example.
The first energy transformation in the scenario is chemical energy to kinetic.
From the time the archer draws the bow until the thud us heard, entropy increases in
the universe.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the
muscles of the archer.
When the arrow sticks into the tree the original energy has all been used up.
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Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.
The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.
When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.
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On the model of mitchondrion, highlight the area (arrows) that is the ELECTRON TRANSPORT CHAIN in yellow.
Place an X over the protein that is inhibited by cyanide.
Color the phospholipid bilayer blue.
A special protein called ATP synthase generates ATP. Find it on the diagram and color it red
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The electron transporter chain is the sequence of redox reactions that occur in the mitochondrial membrane as electrons flow through different electron transporters resulting in energy production. In the attached files you will find the image with the colored structures.
What is the electron transporter chain and how does cyanid inhibit it?
The electron transporter chain is a series of molecules and proteins located in the internal mitochondrial membrane. It constitutes a series of enzymatic reactions to release and save energy for the organism’s correct functioning.
Along the chain, there are four proteinic complexes in the membrane that contain the electron transporters and the enzymes necessary to catalyze the electrons' transference from one complex to the other.
Different redox reactions occur to pass electrons from NADH along the chain.
Released energy creates a proton concentration gradient used to synthesize ATP.
Cytochrome oxidase (P450) is one of the enzymes involved in this electron transport, which ends in producing energy. It is the complex IV.
Ion cyanide is a powerful cellular poison that inhibits cellular respiration by binding to the ferric ion of cytochrome oxidase.
Cyanide-ferric binding inactivates the enzyme and blocks electron transference. The chain is interrupted, leading to no oxygen consumption and no ATP production.
Since muscles do not get to have ATP as a source of energy, they weaken.
The interruption of the electron transporter chain produces an anaerobic state that could be culminating.
In the attached files you will find the image with the colored structures. Complex IV is the one affected by cyanide.
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Please help will mark most
Answers
Answer:
DNA ligase/ polymer
Explanation:
They are mismatched
3
What effect of the disappearance of the otters on the diet of the glaucous-winged gulls?
Answers
As the disappearance of otters, the diet of the glaucoma-winged gulls changed from eating fish to consuming mainly
invertebrates.
Which of the following best describes the image below?A. Meiosis 1B. MitosisC. Meiosis 2D. Binary fission
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The alternative that best describes the process in the image is called meiosis 2 (C), when daughter cells are divided into new daughter cells with half the number of chromosomes.
A concentration gradient is ________.
5 points
High concentration
Low concentration
A concentration difference
equal concentration
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Answer: The process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are typically separated by a membrane.
THE ANSWER IS A!!!
What was Marshall Nirenberg and Heinrich Matthaei’s contribution to our current understanding of the genetic code?
discovery of codons
discovery and extraction of DNA
creation of a model of DNA
creation of Photo 51
Answers
Answer:
to make decisions in observing crucial surgeries. EXPLANATION:.
Explanation:
35 MINUTES LEFT
Santana is a pharmacist who wants to look up information about the uses of a certain drug. Which references would be useful?
Select all that apply.
US Pharmacopoeia Drug
Physician’s Desk Reference
Remington: The Science and Practice of Pharmacy
Facts and Comparisons
Red Book: Pharmacy’s Fundamental Reference
Answers
Answer:
A B E
Explanation:
on Edge
Products made with or derived from transgenic of genetically modified organisms (GMOs) are called _____ products
Answers
Biotechnology is the answer. Biotechnological products are those created with or generated from transgenic genetically modified organisms (GMOs).
An organism that has had its genetic makeup altered through biotechnology in a way that does not happen normally through multiplication and/or natural recombination is referred to as a genetically modified organism (GMO); cloned animals are included in this definition.
The term "GMO" (genetically modified organism) refers to a plant, animal, or microorganism whose genetic material (DNA) has been altered using technology that typically entails the precise modification of DNA, such as the transfer of specific DNA from one organism to another.
As a result, biotechnology is the solution. Transgenic genetically modified organisms are used to manufacture or produce biotechnological products (GMOs).
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5. How are unicellular organisms different than multicellular organisms? *
O They are the same
O They are made of many cells
O They are made of just one cell
O They are only classified as prokaryotes
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Answer:
O They are made of just one cell
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells.
Match the term to its description.
Chromosphere
Photosphere
Radiative zone
Corona
[Choose]
[Choose]
[Choose ]
[Choose ]
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The matching of the layers can be seen in the lines that have been shown below.
What are the layers?Chromosphere: A thin layer of the Sun's atmosphere located above the photosphere and below the corona, characterized by a reddish glow.
Photosphere: The visible surface of the Sun, characterized by a granulated appearance caused by convective motion of gases.
Radiative zone: A region of the Sun's interior where energy is transferred through radiative processes as photons bounce around, taking up to a million years to reach the convection zone.
Corona: The outermost layer of the Sun's atmosphere, extending millions of kilometers into space, characterized by a faint glow and visible during a total solar eclipse.
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In Activity 2, which of the respirometers serves as a control? Explain your answer! Why was it the control? You should write at least 3 sentences to explain this. Respirometer A contains germinated beans. respirometer B contains dormant beans and plastic beads respirometer C contains plastic beads.
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In Activity 2, the respirometer C serves as the control. A control is an essential part of any scientific experiment as it provides a baseline against which the experimental results can be compared.
Respirometer C containing only plastic beads does not contain any living organisms and therefore does not undergo cellular respiration. By comparing the results of respirometers A and B with the control (respirometer C), any changes in oxygen consumption and carbon dioxide production can be attributed to the metabolic activity of the germinated beans in respirometer A and the dormant beans in respirometer B.
This allows researchers to determine the specific effects of germination on cellular respiration by isolating the variables and eliminating any external factors that could influence the results.
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What are two main ways in which human genetics follows the genetic patterns in other organisms?
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Answer:
Autosomal Dominant and Autosomal Recessive.
Explanation:
These are called inheritance patterns. Examples of inheritance patterns include:
Autosomal dominant – where the gene for a trait or condition is dominant, and is on a non-sex chromosome. Autosomal recessive – where the gene for a trait or is recessive, and is on a non-sex chromosome.please mark me as brainliest and rate my answer
Pls answer ??????????????
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Climate change can cause various harmful effects on the environment and ecosystem.
what is climate change?The term "climate change" describes the evolution of the planet's climatic circumstances. Several internal and external variables both contribute to this. Throughout the past few decades, the climatic shift has attracted attention on a global scale.
A. drastically, ecosystem, and organisms.
B. All organisms
C. Carbon dioxide, climate change
D. decreases
E. Harmful effects
F. Climate change, organisms
Thus, these are the correct options to fill in the blanks.
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How is matter related to life
Answers
Answer: Living things are made of matter and have a characteristic material composition, being made of biomolecules such as proteins, carbohydrates, and nucleic acids.
Explanation:
Life may be partly defined by the ability of living things (organisms) to acquire matter and incorporate it into themselves, i.e., to grow
matter creats objects and life hosts in objects "giving them life" anything that is sentient, has matter
what is the purpose of RNA
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RNA, in one form or another, touches nearly everything in a cell. RNA carries out a broad range of functions, from translating genetic information into the molecular machines and structures of the cell to regulating the activity of genes during development, cellular differentiation, and changing environments.
Answer:
RNA is to carry info of amino acid sequence from the genes to where proteins are assembled on ribosomes in the cytoplasm
Why are bacteria and viruses considered immortal
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Answer:
Bacteria and viruses are considered immortal because they reproduce and multiply very rapidly. Bacteria can divide into two identical daughter cells in as little as 20 minutes. Viruses can replicate by hijacking a host cell's metabolic machinery and creating multiple copies of themselves, which can then infect other cells. This rapid reproductive rate and lack of aging mechanisms means that bacteria and viruses can continue to reproduce indefinitely, making them "immortal" in a sense. However, bacteria and viruses can still be killed by antibiotics, antivirals, or host immune responses, so they are not truly immortal.
Why human, monkey, horses and birds are considered to have evolved from the same ancestors?
Answers
Answer:
Everything at some point belonged to a common ancestor, but these four species are considered to be like this because of similar ancestral traits that have been passed on to generations such a homologous pairs, vestigial structures, they are all mammals, similar amino acid sequences, vertebraes, etc.
Select all of the following that are present at the connection between normal cells of multicellular organisms:
a.Centrioles for coordination of cell division
b.A way for cells to adhere to one another
c.Ways that cells can communicate with each other
d.Organelles for producing food molecules shared between cells
Answers
The correct option is B ; A way for cells to adhere to one another , Animal cells are linked to one another by tight junctions, desmosomes, and gap junctions and interact with one another through their extracellular matrices.
Plasmodial connections and communication between plant cells are known as plasmodesmata. Plasmodesmata: links adjacent plant cells and permits the passage of water and small solutes. List the intercellular junctions that can be found in mammal cells along with their functions. Cell adhesion molecules (CAMs), a class of cell-surface proteins that contains the transmembrane adhesion proteins we have already discussed, are responsible for cells' adhesion to one another and to the extracellular matrix. Cell-cell adhesion molecules (CAMs) and cell-matrix adhesion molecules are both possible.
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