Answer:
11%2F6_ -Amoeba Sisters Video Recap and Practice Problems.docx
Explanation:
#maxmeasabrainliestLa división celular sucede en 2 fases, en primer la lugar la división del ______________ y después la división del __________________ *
The state of flux in modern systematic groupings could best be described as/seen in a variety of conflicting kingdom or _____ structures.
The state of flux in modern systematic groupings can be seen in a variety of conflicting kingdom or domain structures.
The classification of organisms into different taxonomic categories, such as kingdoms or domains, is constantly evolving as new scientific discoveries and advancements are made. The traditional five-kingdom system (Animalia, Plantae, Fungi, Protista, and Monera) has been challenged and modified in light of new genetic and molecular information.
One major development in the field of taxonomy is the adoption of the three-domain system, proposed by Carl Woese in the 1990s. This system categorizes organisms into three domains: Bacteria, Archaea, and Eukarya. This classification is based on the genetic and biochemical differences observed in the ribosomal RNA sequences of these organisms. The three-domain system highlights the fundamental distinction between prokaryotic (Bacteria and Archaea) and eukaryotic (Eukarya) organisms.
However, even within these domains, there is ongoing debate and reorganization at lower taxonomic levels. For example, the classification of certain groups within the domain Eukarya, such as protists, has been challenging due to their vast diversity and complex evolutionary relationships. Protists were traditionally considered a single kingdom, but they are now recognized as a polyphyletic group, comprising multiple lineages that are not closely related.
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Which hormones causes ejection of milk making it accessible for the infant?
Answer:
Oxytocin.
Explanation:
Oxytocin causes ejection of milk making it accessible for the infant.
“Oxytocin. The oxytocin reflex is also sometimes called the “letdown reflex” or the “milk ejection reflex”. Oxytocin is produced more quickly than prolactin. It makes the milk that is already in the breast flow for the current feed, and helps the baby to get the milk easily.”
hope this helps!
Explain how cells respond to hormonal stimulation, and refer to
enhancement of
survival and reproduction of the plant
Cells respond to hormonal stimulation by activating specific signaling pathways that trigger a series of molecular and physiological responses.
When a hormone binds to its receptor on the cell surface or inside the cell, it initiates a cascade of events that ultimately lead to changes in gene expression and cellular activities.
These responses are crucial for the enhancement of the survival and reproduction of the plant.
Upon hormonal stimulation, signal transduction pathways are activated, which can involve the activation of second messengers, protein kinases, and transcription factors.
These molecular components relay the hormonal signal from the receptor to the nucleus, where gene expression is modulated. The altered gene expression leads to the synthesis of proteins that play essential roles in the plant's survival and reproduction.
For example, hormone-induced gene expression can regulate processes such as seed germination, flowering, fruit development, and stress responses. These responses are essential for the plant's adaptation to its environment, ensuring its survival in challenging conditions and promoting reproductive success.
Furthermore, hormones also influence cellular processes related to plant reproduction. They regulate the development of reproductive structures, such as flowers, and influence the timing of flowering. Hormones also play a role in pollination, fertilization, and seed development.
For instance, auxins and gibberellins are involved in promoting flower and fruit development, while abscisic acid influences seed dormancy and germination.
By modulating these reproductive processes, hormones contribute to the successful reproduction and propagation of the plant species.
In summary, cells respond to hormonal stimulation by activating specific signaling pathways, leading to changes in gene expression and cellular activities.
These responses are crucial for enhancing the survival and reproduction of plants, enabling them to adapt to their environment, and ensuring successful reproduction and propagation of the species.
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Help me please please
Answer:
use a search engine
Explanation:
the internet is a great way to answer these simply type in your term EX: Sun definition. and paraphrase the answer. so instead of the star around which the earth orbits you can say the sun is a star that keeps all planets in our solar system in orbit
How is the ocean affected by the releasing of excess carbon?
Answer:
Explanation:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
what happened in the step immediately before the phase pictured here to cause this problem
Answer:
come again..not got the question
Which of the following is NOT an aspect of organisms found in the Plant Kingdom?
Movement
Sexual Reproduction
Multi-Celled
Autotrophic (Makes its own food)
UNA FUENTE DE ALIMENTOS QUE SOLO LAS ARDILLAS SON IMPACTADAS TANTO EN EL ECOSISTEMA ??
A FOOD SOURCE THAT ONLY THD SQUIRRELS ARD IMPACTED THE ECOSYSTEM SO MUCH??
What does it mean to ‘translate’ something? What is being translated in protein synthesis?
Answer:
Answer:
Translation is the process of translating the sequence of a messenger RNA molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.
For a second i thought you meant to translate something to another language lol.
Over several generations,a species of insect becomes resistant to a pesticide that farmers commonly use.what type of selection is this an example of,and why
Select one
Artificial selection,because only individuals with the resistant trait survive
The type of selection where a species of insect becomes resistant to a pesticide that farmers commonly use is Natural selection.
What describes naturakl selection?Natural selection is the process by which organisms with traits that are better suited to their environment are more likely to survive and reproduce. In this case, the insects that are resistant to the pesticide are more likely to survive and reproduce, because they are not killed by the pesticide.
This means that the next generation of insects will have more resistant individuals. Over time, this can lead to a population of insects that is completely resistant to the pesticide.
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With respect to climate change and natural selection acting upon a population of one species of frog in a tropical rain forest, mutations of DNA sequences of the frog genome that are inherited by offspring It is estimated by a wide body of scientists that in recent decades we have begun another mass extinction event on Earth. Amphibians in particular have been in decline, sometimes due to climate change, and they therefore provide a possible early sign of dramatic biodiversity change to come. With respect to climate change and natural selection acting upon a population of one species of frog in a tropical rain forest, mutations of DNA sequences of the frog genome that are inherited by offspring may have no effect at all, be beneficial, or be harmful. will primarily be harmful. will only speed the decline and extinction of the species. could either be beneficial or harmful.
Answer:
be beneficial.
Explanation:
Mutations of DNA sequences of the frog genome that are inherited by offspring will be beneficial for the frog because this mutation in the genetic makeup of frog provides resistance in this new environmental conditions. This mutation occurs due to the exposure of cell's DNA to the environmental factor which gives benefit to the organisms to survive different condition which can't tolerate by their parents so this mutation is beneficial for that offspring of frog.
HURRY IT’S TIMED I’LL GIVE YOU BRAINLIEST
Which illustrates the relationship between cooling magma and mineral formation?
A. Darwins theory
B. Theory of relativity
C. Bowen‘s reaction series
D. Newtons principle of physics
Answer: C. Bowen‘s reaction series
Explanation:
Select the correct answer. Which of the following is an example of an amphiarthrotic joint?
a. suture
b. elbow
c. hip
d. interosseous membrane
The correct option is d. interosseous membrane . An interosseous membrane is an example of an amphiarthrotic joint.
The interosseous membrane is a fibrous connective tissue structure that spans between two adjacent long bones in the body, providing stability and transmitting forces between them. It is most commonly found between the radius and ulna in the forearm and the tibia and fibula in the lower leg.
The interosseous membrane acts as a flexible barrier, maintaining the appropriate distance and alignment between the bones while allowing a limited degree of movement. It helps distribute forces generated during activities such as weight-bearing, gripping, or rotational movements across the two bones, preventing excessive stress on any one bone.
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What is the name of this table?
Answer: Periodic table
Explanation:
Answer: Periodic table of the elements
The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends.
You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them,
What is the best estimate of the number of fish in the pond?
a 100
b 150
c 142
d 204
Answer:
100
Explanation:
70 + 35 is 105 and if the 12 fish were new it would be 117 which is almost 25 away from 142 but 17 away from 100. hope that makes since!
Answer:
204 d
Explanation: took the test
At a certain age the brain takes over your writing skills, it becomes a subconscious task.
True or False?
The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentences.(4 points)
Answer:
When in higher altitudes, ticker blond has a tendency to cause problems like heart attack's, however the Tibetans have adapted to the high altitudes and this has made their blood thinner in order to keep them safe in the altitudes, including that it has low oxygen rates in the altitude therefore providing more oxygen in the bloods cells.
Explanation:
:D It's not my best explanation but I hope this helps <3.
Owing to the fact that ability of the redblood cells to to carry oxygen even in low oxygen environments is neccessary at high elevations, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.
What is natural selection?The term natural selection refers to the fact that organisms that are better adapted to their habitat will live longer and reproduce. Now we have to note that owing to the elevation at which they live, the people that possess this EPAS1 gene can cope with oxygen stress that could likely occur at a high altitude.
As such, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.
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Can someone please help I need for finals to study
1st Page: Include separate in each question next time.
1) Carbon dioxide (CO2) is the greenhouse gas that has been most released into the atmosphere by human activity. Burning of fossil fuels like coal, oil, and natural gas for transportation, electricity generation, and other industrial processes releases large amounts of CO2 into the atmosphere. Deforestation and other land-use changes also contribute to increased CO2 emissions. CO2 is a major contributor to global warming and climate change, as it traps heat in the atmosphere and results in a warming effect on the planet. Other greenhouse gases, such as methane and nitrous oxide, also contribute to climate change, but CO2 is the most significant and has the greatest impact on the Earth's climate system.
2) The concept of the "heat trapping blanket" refers to the natural greenhouse effect that occurs in the Earth's atmosphere. The Earth's atmosphere acts like a blanket that traps some of the heat energy from the Sun that is absorbed by the Earth's surface, keeping the planet warm enough to support life. This is a natural and necessary process that has been occurring for billions of years. The Earth's atmosphere is made up of several gases, including carbon dioxide, methane, and water vapor, that have the ability to trap heat in the atmosphere. These gases are known as greenhouse gases because they act like the glass walls of a greenhouse, allowing sunlight to pass through but trapping the heat that is radiated back from the Earth's surface. activities, such as burning fossil fuels and deforestation, have increased the concentration of greenhouse gases in the atmosphere, particularly carbon dioxide. This has intensified the greenhouse effect, resulting in a warming of the Earth's surface temperatures, known as global warming. The "heat trapping blanket" analogy is often used to describe this process, as the increasing concentration of greenhouse gases in the atmosphere is like adding an extra layer to the blanket, making it thicker and trapping more heat. The consequences of global warming include rising sea levels, more frequent and severe weather events, and changes in the distribution of plant and animal species. In order to reduce the impact of global warming, it is important to reduce greenhouse gas emissions and promote sustainable practices that help to mitigate the effects of climate change.
3) The three "-spheres" that are being affected and changed by greenhouse gases are:
The atmosphere: Greenhouse gases such as carbon dioxide, methane, and nitrous oxide are accumulating in the atmosphere and trapping heat, causing the Earth's average temperature to rise. This is leading to changes in weather patterns, rising sea levels, and more frequent and severe weather events.
The hydrosphere: The increasing temperature of the Earth's atmosphere is causing the oceans to warm, leading to thermal expansion and rising sea levels. The oceans are also becoming more acidic due to the absorption of carbon dioxide from the atmosphere, which is having negative impacts on marine ecosystems.
The biosphere: Changes in temperature and weather patterns are affecting ecosystems and the distribution of plant and animal species. Some species are being forced to migrate to new areas in search of suitable habitats, while others are becoming endangered or extinct. The biosphere is also being impacted by ocean acidification, which can affect the ability of marine organisms to form shells and skeletons.
4) Reducing greenhouse gas emissions and mitigating the effects of climate change is a complex problem that requires a multi-faceted approach. Here are some potential strategies that could be used to address the issue, along with their criteria, constraints, and costs: Renewable energy: Transitioning to renewable energy sources such as solar, wind, and hydropower can reduce greenhouse gas emissions from fossil fuel use. Criteria for this solution could include the ability to generate electricity at scale, cost-effectiveness, and reliability. Constraints include the need for suitable locations for renewable energy infrastructure, limited storage capacity, and the intermittency of some renewable energy sources. Costs can vary depending on the specific technology used and the location of the infrastructure.
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Which of the following is NOT true regarding cross-sectional studies? (2 points)
A. Good for generating hypotheses.
B. Not used for diseases that are rare or of short duration.
C. Permit the determination of population characteristics.
D. The temporal relationship between exposure and disease can be determined.
The temporal relationship between exposure and disease can be determined, option D is correct.
Cross-sectional studies are not suitable for determining the temporal relationship between exposure and disease. Cross-sectional studies provide a snapshot of data collected at a specific point in time, capturing information on both exposure and disease prevalence simultaneously. However, they do not follow individuals over time to establish a cause-and-effect relationship. Since cross-sectional studies collect data at a single time point, they cannot determine the sequence of events or whether exposure preceded the disease.
To establish temporal relationships, longitudinal studies are typically employed, where individuals are followed over time to assess exposures and track the development of diseases, allowing for better assessment of causality and temporal associations between exposure and outcome, option D is correct.
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below are 4 terms. look at these terms. then, determine which of those 4 terms includes or incorporates the other 3 terms? terms to examine: (1) community, (2) population, (3) species, (4) ecosystem
The term "ecosystem" incorporates the other three terms: community, population, and species.
An ecosystem refers to a complex system where living organisms, their physical environment, and their interactions exist. Within an ecosystem, there are various levels of organization. At the lowest level, we have individual organisms of the same species, which form populations. Populations of different species then interact within a given area, forming a community. A community comprises different populations coexisting and interacting with each other. Lastly, an ecosystem includes both the biotic (living) and abiotic (non-living) components, encompassing all communities, populations, and species present within a specific geographic area. In this way, the concept of an ecosystem incorporates and integrates the interactions and relationships between communities, populations, and species, providing a holistic understanding of the environment.
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If a strand of DNA has the nucleotide sequence: AATGCT, what is the complementary sequence of RNA nucleotides that would be made from it?
Answer:
Explanation:
All the best
1- Define Photosynthesis.
Answer: the process in which plants use sunlight to synthesize food from carbon dioxide and water.
Explanation:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Mice with a greater range of experience show higher levels of adult hippocampal neurogenesis__________
The design of the dage in which the rats were held for the duration of the experiment__________
Adult neurogenesis in the hippocampal region of the brain__________
A group of rats held in a standard cage for the duration of the experiment__________
A group of rats that spent the duration of the experiment in the enriched environment ubrated and described in Figure 1__________
As adults, the experimental group in the enriched environment had higher levels of ad and greater individual differences than the control group__________
Mice with a greater range of experience show higher levels of adult hippocampal neurogenesis - This statement suggests a positive correlation between the range of experiences and the levels of neurogenesis .
The design of the cage in which the rats were held for the duration of the experiment - This statement refers to the specific design or characteristics of the cage used in the experiment involving rats.
Adult neurogenesis in the hippocampal region of the brain - This statement indicates the occurrence of neurogenesis in the hippocampus.
A group of rats held in a standard cage for the duration of the experiment - This statement describes a specific group of rats that were kept in a regular or typical cage during the entire experiment.
A group of rats that spent the duration of the experiment in the enriched environment described and illustrated in Figure 1 - This statement refers to a specific group of rats that were exposed to an enriched environment,
As adults, the experimental group in the enriched environment had higher levels of ad and greater individual differences than the control group - This statement suggests that the adult rats in the experimental group
Neurogenesis refers to the process of generating new neurons (nerve cells) in the brain. Until relatively recently, it was believed that neurogenesis only occurred during embryonic development and that the adult brain was incapable of producing new neurons. However, research has shown that neurogenesis continues to occur throughout adulthood, particularly in two key regions: the hippocampus, which plays a role in learning and memory, and the olfactory bulb, involved in smell perception.
Neurogenesis is influenced by various factors such as physical exercise, environmental enrichment, and learning experiences. It has been linked to improved cognitive function, mood regulation, and emotional resilience. The discovery of adult neurogenesis has opened up new avenues for understanding brain plasticity and developing potential therapeutic strategies for neurological disorders and mental health conditions.
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Question 1. What change led to an increase in the number of light-colored moths within the population?
1. More mutations
2. Decreased pollution
3. More dark colored trees
4. Fewer humans
Question 2. Claim: Individuals in a population have genetic variations that can be passed on to their offspring. Refer back to the rabbits in the desert from the natural selection activity we did in class. How could an organism's traits influence the survival rate of the population?
Answer: 1. 1. More mutations. 2. According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
Explanation:
2. The formation of a new community where another community already exists is known as ______.
A primary succession
B secondary succession
C pioneer community
D pioneer species
Answer:
B secondary succession
Explanation:
How did the animals near orchard park all die
Answer:
Scientists have shown that the ash that killed and eventually buried the animals at the park blew eastward from a huge volcanic eruption in what is now southwestern Idaho.
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_____________ are present in an organism, but they don't function in the same way they used to. HELP ILL GIVE BRAINLIEST!!! picture attached as well.
A.Embryos
B.Analogous structures
C.Vestigial structures
D.Homologous structures
Answer: D.Homologous structures
Explanation:
please help tephographic map
Answer:
1 weathering 2 erosion 3 deposition
Explanation:
assuming this portrays a mountain the rain starts at the top eroding down the mountain carrying any sediment and then is deposited at the base