Answer:
12345
Explanation:
12345
When does a population experience logistic growth?
A. When it has access to unlimited resources
B. When it reaches the carrying capacity
C. When natural predators are introduced to the population
D. When there's primary succession
When the population attains the condition called carrying capacity, it causes logistic growth in the population.
Answer: Option B
Explanation:
The rate of development of population in an environment depends based upon the number of individuals surviving in the environment. It develops in size gradually when there are just a couple of people whereas it develops quicker when there are more people.
When the population reaches the carrying capacity of the environment which is nothing but the maximum number of individual which the environment can hold, it causes logistic growth due to non availability of resource as it is exhausted by the surviving population.
option B. Logistic growth in a population occurs when growth slows and becomes steady as the population approaches the carrying capacity of its environment due to limitations in resources.
Explanation:A population experiences logistic growth when it reaches a point of stability due to limitations in available resources, also known as the carrying capacity. In other words, logistic growth occurs when a population's growth slows down and remains steady as it approaches the carrying capacity of its environment. Initially, growth is rapid, similar to exponential growth. However, as the population approaches the carrying capacity, the resources in the environment are not sufficient for all members of the population, leading to competition and a slowdown in population growth.
Option A does not lead to logistic growth, but rather to exponential growth, which is unrestricted. Option C introduces a factor that may limit population growth but is not the definition of logistic growth. Finally, option D does not necessarily lead to logistic growth as primary succession refers to the establishment of a biological community in an area with no life.
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Large molecules such as glucose move across cell membranes through special protein channels during?
Large molecules such as glucose move across cell membranes through special protein channels during FACILITATED DIFFUSION (passive transport).
Facilitated diffusion is a type of passive transport across biological membranes that does not require energy.
During facilitated diffusion, molecules are transported in favor of a concentration gradient, from an area of high concentration to an area of low concentration.
Facilitated diffusion is carried out by specific membrane proteins called channels or carriers.
In conclusion, large molecules such as glucose move across cell membranes through special protein channels during FACILITATED DIFFUSION (passive transport).
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A __________ is an area of land that is drained by a river.
Question 9 options:
A. Watershed
B. Reservoirs
C. Aquifers
D. Recharge zone
The answer is A : watershed. Please correct me if I’m wrong :)
Explain how land cover is related to land use
Answer:
Explanation:
how people are using the land. ... Land cover data documents how much of a region is covered by forests, wetlands, impervious surfaces, agriculture, and other land and water types.
Now leave the paper in the container overnight. In the morning, look at the paper and write down your observations.
Answer:
Explanation:
Now leave the paper in the container overnight. In the morning, look at the paper and write down your observations.
what am i supposed to do????
the paper is soaked and diluted
Explanation:
The following diagram shows the branching tree diagram of some animals.
Which derived characteristic is shared by at least four organisms?
A. Large Brain
B. Lungs
C. Mammary Glands
D. Placenta
The lungs characteristics is shared by at least four organisms
Answer:The Lungs Is The Answer PLEASE PLEASE give me brainliest bc im new
Explanation:
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The sequence of bases on one strand of a DNA molecule is ATTGCCCATG. What will be the sequence on the complementary strand?
Answer:taacgggtac
Explanation
A pairs with t
G pairs with c
Answer:
TAACGGGTAC
Just remember that C always goes with G and A goes with T except in RNA then A cheats on T with U.
for what reasons is a fanlike diagram a useful model for phylogenetic classification?
Answer:
Because ancestors more common with each other are closer to the center....1000's of species names make more sense by simply looking at it.
Explanation:
yahoo
Final answer:
Phylogenetic trees represent evolutionary relationships and require homologous traits to accurately trace ancestries and evolutionary pathways. They serve as a map of evolutionary history, showing how species are related and have diverged over time.
Explanation:
A fanlike diagram, known as a phylogenetic tree, is a useful model for phylogenetic classification because it illustrates the evolutionary relationships among different organisms or groups of organisms. The reason it is so important for scientists to distinguish between homologous and analogous characteristics before creating such trees is because phylogenetic trees are based on evolutionary connections. Homologous characteristics reflect a common ancestry, while analogous characteristics may be similar due to convergent evolution but not due to a shared ancestor. Therefore, using homologous traits is crucial for accurately depicting the pathways of descent.
Moreover, the phylogenetic tree serves as a map of evolutionary history. Rooted trees have a single lineage at the base, indicating a common ancestor from which all organisms on the diagram diverged. This can help trace the lineage of a single species and discover common ancestors among various species. On the other hand, unrooted trees show relationships but not a common origin. The hierarchical classification is reflected, showcasing the diversity and comparability of different species over evolutionary time.
Based on the molecular data, which species is most closely related to humans
A) Lemur Catta( lemur)
B) Hypobates lar (gibbon) C) Gorilla gorilla (gorilla)
D) Macaca Mulatta (Rhesus Monkey)
C. ...........................
Answer:
C) Gorilla gorilla (gorilla)
Explanation:
At least 15% of our genome is more similar to gorillas than our closest "relatives," chimpanzees.
First, you need to understand a few things. Gorillas, chimpanzees and humans all have one ancestor in common. First, gorillas distinguished themselves and followed their own evolutionary path. Then humans and chimpanzees broke up. That's why the chimpanzee is considered the most human-like animal - and the gorilla the second.
The data showed that the separation of gorillas from our common ancestor took place about 10 million years ago - four million before the separation between humans and chimpanzees.
Why are well-defined reading frames critical in protein synthesis? A. Without a well-defined reading frame, the resulting protein would be transported to the cell surface. B. Without a well-defined reading frame, the ribosome is unable to bind to the mRNA. C. Without a well-defined reading frame, the peptide made from a given sequence could be completely different. D. Without a well-defined reading frame, the mRNA would be transcribed back into DNA.
Answer:
Option (C).
Explanation:
Reading frames represent a way of reading the sequence of nucleotides in a DNA or RNA molecule into a set of non-overlapping, constitutive triplets.
These triplets are known as genetic codes or codons. There are total 64 codons, out of which 61 code for particular amino acids and three codons provide stop signaling.
So, if a reading frames change in a RNA molecule, it will lead to change in codon sequence and formation of a completely different peptide.
Thus, the correct answer is option (C).
Answer:
The correct answer is option C. "Without a well-defined reading frame, the peptide made from a given sequence could be completely different".
Explanation:
In molecular biology, the reading frame is defined as the way a nucleotide sequence is divided in triplets, at which each group of three nucleotide (codons) is translated into an amino acid. Well-defined reading frames are critical in protein synthesis, because any change in the reading frame would result in a peptide completely different of the one desired. A clear example of the importance of a well-defined reading frame is seen in frameshift mutations, at which nucleotide insertions or deletions causes leads to the synthesis of a completely different and non functional protein.
What were most likely the first life-forms on Earth?
a
simple single-celled organisms
b
simple multicellular organisms
c
complex multicellular organisms
d
complex single-celled organisms
a would be the answer because protista were the first to be on earth and they had eye spots which could they could barely see out of and then their eyes evolved along with their body and everything but the answer was a
The first life-forms on Earth were likely simple single-celled organisms known as prokaryotes, existing over 3.5 billion years ago, well before the advent of complex multicellular organisms and the Cambrian Explosion that led to a significant increase in life's complexity. Hence the correct option is A.
The First Forms of Life on Earth
These early life forms are believed to be prokaryotes, which are organisms without a nucleus or other membrane-bound organelles. This precedes the later development of more complex life, like multicellular organisms which appeared much later in Earth's history. The first multicellular organisms, such as sponges, had specialized cells but were still far simpler than the complex multicellular organisms we see today. Fossil records suggest that the earlier life forms likely resembled modern-day bacteria in size and simplicity. As for the progression of life, it is broadly accepted that life on Earth started as single-celled, simple organisms, which then evolved over billions of years into a diverse array of complex organisms we have today. This evolutionary process is thought to have begun around 3.5 to 4 billion years ago, and the first multicellular life didn't appear until about 610 million years ago, leading up to the Cambrian Explosion of evolution which expanded life's complexity significantly.
Sarah recently learned about performing a cost–benefit analysis while studying environmental policies. Help her choose the right terms to describe this type of analysis
Answer:
Cost benefit analysis is a way for society to make decisions about complicated issues such as education, health care, transportation, or the environment.
Explanation:
Cost benefit analysis involves a comparison of the costs of an action compared with considerations of the benefits of that action. The most important component of a cost benefit analysis is the base situation or what would happen if no changes were made. A cost-benefit analysis is a process, businesses use to analyze decisions.
Environmental cost-benefit analysis refers to the economic appraisal of policies and projects that have the deliberate aim of improving the provision of environmental services or actions that might affect. it is estimating the strengths and weaknesses of alternatives used to determine options which provide the best approach to achieving benefits.
Answer:
internal expenses , decreases
Explanation:
If you need to understand how food chains are connected in the ecosystem, which tool would you use? A. Food chain B. Phylogenetic tree C. Food web D. Periodic table
Answer: C food web
Explanation:
Food web is a system that interlock and interdependent food chain
Answer:
C. Food Web
Explanation:
A food web is the network of interconnected food chains. It represents the branched food chains wherein one plant species serve as food for many different primary consumers and one specific primary consumer feeds on various plant species. This leads to interconnected network of food chains and is called as food web.
List at least two differences between body cells and sex cells.
-Gametes (sex cells) go through meiosis while body cells go through mitosis
-Also body cells make up the body of any kind of multicellular organisms and gametes are either sperm or eggs
I hope this kinda helped
The differences between somatic cells and gametes lie in their chromosome count and cellular functions.
Somatic cells and gametes differ in their chromosome count and types. Somatic cells are diploid with 46 chromosomes, while gametes are haploid with 23 chromosomes. Another difference is that somatic cells are involved in forming the body's structure, whereas gametes are essential for reproduction.
What is a non-renewable resource?
A resource that is found in forests.
A resource that must be mined.
A resource that can be replenished faster than it runs out.
A resource that does not replenish itself faster than it is being used.
A non-renewable resource is a resource that cannot be used more than once so a resource that does not replenish (replace) itself faster than being used is a non-renewable resource.
Answer:
Explanation:
In effect, a non renewable resource is the last one, but no one would agree.
Something found in forests (like tree wood) is renewable.
Anything that can be replenished faster than it is used is renewable.
The answer you are looking for is the second one. Anything that is mined is not renewable. If you place a chunk of gold in a dark room and leave it there for a century, you will not find you have more gold when your return. Once you mine something, it's gone.
Which organelle, other than the cell wall, also plays a vital role in providing rigidity to plant cells?
Answer:
The correct answer is option (c). central vacuole.
Explanation:
The central vacuole is an organelle, which is important for maintaining the turgidity in the plant cell. The central vacuole stores water, minerals, salts and helps the cell to maintain the osmorality.
The central vacuole stores a lot of water in the cell, and swell up due to high water concentration, this provide the turgidity to the plant cell and keep intact with the cell wall.
Final answer:
Other than the cell wall, the large central vacuole is essential in providing rigidity to plant cells through turgor pressure. The cell wall itself is made of cellulose, other polysaccharides, and protein, and it's this structure that gives raw vegetables their crunch.
Explanation:
Aside from the cell wall which provides rigidity to plant cells, another critical organelle is the large central vacuole. Found within plant cells, the central vacuole acts as storage for water and other substances. When filled with water, the vacuole exerts an internal pressure called turgor pressure, which reinforces the cell's rigidity. This pressure helps maintain the plant's structural integrity, enabling it to stand upright and resist wilting.
Furthermore, it's interesting to note that besides cellulose, the cell wall also contains other polysaccharides and protein. It not only gives structural support and protection but also has pores that allow the movement of water and nutrients into and out of the cell. The cell wall's sturdy nature is evident when biting into raw vegetables, such as celery, where the crunch is the result of tearing through the rigid cell walls.
what does digestion have to do with cellular respiration
Answer:
Digestion "cleans out" the digestive system keeping it free of dead cells. It is important because it serves as the "fuel" for cellular respiration. The glucose is used to produce the ATP our body needs to perform essential functions. ATP is like the "energy currency"/"money" that the living cells "run on". The digestive tract provides the nutrient molecules, through the process of digestion, while the respiratory tract provides oxygen. As such, the two systems work together to give your cells the ingredients they need to produce energy, which they use to communicate, build cellular products and grow.
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how is homeostasis important to the survival of organisms
Answer:
Homeostasis is the ability to maintain a constant internal environment in response to environmental changes so organism must need it so they can be balanced internally in response to the environment .
Hope This Helps! Have A Nice Day!!
Homeostasis is important to the survival of organisms because it allows them to maintain stability in their internal environment and adapt to changing external conditions.
Explanation:Homeostasis is the ability of an organism to maintain stable internal conditions in response to changes in its external environment. It is important to the survival of organisms because it allows them to function properly and adapt to different conditions. For example, in humans, homeostasis regulates body temperature, blood pressure, and blood glucose levels to ensure optimal physiological functioning.
By maintaining homeostasis, organisms can keep their internal environment within a narrow range of conditions that are necessary for their survival. This stability allows cells and organs to function properly and perform their specific roles. Without homeostasis, organisms would be more susceptible to disease, dehydration, or other disruptions that could threaten their survival.
Overall, homeostasis plays a vital role in the survival of organisms by allowing them to maintain internal stability and adapt to changing external conditions.
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two replication forks form a _________________?
Answer:
Tow replication forks form a lagging and leading strand.
Explanation:
During the process of DNA replication, there forms a Y shaped junction called replication fork. At each replication origin, two replication forks are formed in opposite polarities.
At one replication fork, a discontinuous stand is formed called lagging strand, and at the other replication fork, there forms a continuous strand in 5' to 3' direction called leading strand.
Tow replication forks form a lagging and leading strand in DNA replication
What is Replication fork ?It is a point where DNA replication occurs, otherwise called as growth point. At each origin, two replication forks are formed in opposite polarities.
It is Y-shaped structure forms at the junction between the newly separated template strands and the duplex DNA that has not yet been duplicated.
During initiation step of DNA replication, one strand can be easily duplicated, while the other strand can not easily duplicated due to polarity problem.
Secondly DNA polymerase synthesizes the DNA strand in the 5′-3' direction only.
Thus, one strand is continuous or leading strand where as other strand is discontinuous or lagging strand, generating Okazaki fragments.
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what is responsible for producing energy in both plant and animal cells
The mitochondria in both plant and animal cells is responsible for producing energy. They make ATP, the cell's main energy-carrying molecule, through a process called cellular respiration. Ensuring both plants and animals have a system to effectively convert nutrients into usable energy.
Explanation:The mitochondria are responsible for producing energy in both plant and animal cells. They are often referred to as the 'powerhouses' or 'energy factories' of a cell. This is because they make adenosine triphosphate (ATP), the cell's main energy-carrying molecule which represents the cell's short-term stored energy.
Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. Within the mitochondria, this process uses oxygen and produces carbon dioxide as a waste product, which we exhale with every breath.
In plants, they also have chloroplasts that perform photosynthesis to convert solar energy into chemical energy, then this energy is broken down in mitochondria similar to the process in animals. This clearly shows the interplay and importance of both photosynthesis and respiration in plant cells, and the central role that mitochondria play in both animal and plant cells for energy production.
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when a honey bee stings or a pathogen attacks the body elicits a inflammatory response label the processes that happened during an inflammatory response
Answer:
Inflammatory response occurs when the tissues are injured as a result of bacteria, trauma, heat or any other cause.
Explanation:
When a honey bee stings or a pathogen attacks the damaged cells release chemicals.
Chemicals includes
histaminebradykininand prostaglandins.These chemicals cause blood vessels to leak fluid into the tissues, causing swelling.
Processes happened during Inflammatory response:
heatpainrednessswelling andloss of function.Inflammation is a defense mechanism in the body. The immune system recognizes damaged cells, irritants, and pathogens, and it begins the healing process. Chronic inflammation can eventually cause several diseases and conditions.
Answer:
The inflammatory response is a type of body response produced in response to damaged tissue, attack of pathogen and or any other cause.
The body shows an inflammatory response in the following manner:
1. Recognition of stimulus- receptors recognize the antigens.
2. Release of inflammatory markers: affected cells produce chemicals like histamine, bradykinin, and prostaglandins.
3. Vascular permeability changes and leukocyte (WBC) recruitment- released chemicals causes the blood vessels to leak fluid causing swelling and attract WBC.
4. Accumulation of leukocytes- WBC performs the process of phagocytosis which eats dead or damaged cells and germs.
The process by which a body of hot magma intrudes into a region of cold rock near Earth's surface is known as A. surface metamorphism. B. regional metamorphism. C. intrusive metamorphism. D. contact metamorphism.
Answer:
D. contact metamorphism
Explanation:
When there's a volcanic activity in certain area, very often it happens that there's magma that intrudes into the cold rock in the surrounding area. The intrusion of the hot magma into the cold rock layers causes big changes into the structure of the rocks. The high temperature and high pressure manage to influence the structure of the preexisting rocks, mostly on the places where the magma touches the cold rocks, leading to the formation of metamorphic rocks. This type of metamorphism is known as contact metamorphism.
Geothermal energy comes from_______ deep in the earth
magma
lava
solar power
volcanoes
Answer: magma
Explanation:
In which layer does mantle convection occur?
Answer:
The correct answer is asthenosphere.
Explanation:
The Earth comprises four layers, that is, the crust, the mantle, the inner core, and the outer core. The magnetic field of the Earth is the amalgamation of the convection it attains from the Coriolis Effect and the outer core. The layer of the Earth where convection of the mantle takes place is the asthenosphere.
Answer:
(ANSWER): ASTHENOPHERE
Explanation:
what color light would most likely be present at 200 meters below sea level
and why
Answer: Sunlight entering the water may travel about 1,000 meters (3,280 feet) into the ocean under the right conditions, but there is rarely any significant light beyond 200 meters (656 feet).
The ocean is divided into three zones based on depth and light level. The upper 200 meters (656 feet) of the ocean is called the euphotic, or "sunlight," zone. This zone contains the vast majority of commercial fisheries and is home to many protected marine mammals and sea turtles.
Only a small amount of light penetrates beyond this depth.
The zone between 200 meters (656 feet) and 1,000 meters (3,280 feet) is usually referred to as the “twilight” zone, but is officially the dysphotic zone. In this zone, the intensity of light rapidly dissipates as depth increases. Such a minuscule amount of light penetrates beyond a depth of 200 meters that photosynthesis is no longer possible.
The aphotic, or “midnight,” zone exists in depths below 1,000 meters (3,280 feet). Sunlight does not penetrate to these depths and the zone is bathed in darkness.
‘Photic’ is a derivative of ‘photon,’ the word for a particle of light.
At 200 measures below ocean position, blue light is most likely to be present due to the immersion characteristics of water which allow blue and green wavelengths to access deeper, with blue light scattering by water motes.
At 200 measures below ocean position, blue light would most probably be present. This is due to the immersion characteristics of water, where different wavelengths of light are downgraded at different rates. Water absorbs the longer wavelengths like red first in the upper 10 m, orange by about 40 m, and unheroic before 100 m, leaving the shorter wavelengths like blue and green to access further. The depth of 200 measures is within the dysphotic zone, also known as the twilight zone, where there's veritably little light, and it doesn't support photosynthesis. Since the photic zone extends to the upper 200 m, and blue light penetrates the deepest, it's the only color that can be perceived at this depth under natural conditions without artificial illumination. The clear water of the open ocean allows blue light to access deeply and be scattered by water motes, further buttressing the dominance of blue at lesser depths.
mosquitoes can often transmit viruses from one organism to another, acting as blank of the virus.
Mosquitoes can often transmit viruses from one organism to another, acting as vectors of the virus.
A vector is an organism that carries a pathogen from one host to another. Mosquitoes are vectors for a number of viruses, including dengue, Zika, yellow fever, and malaria.
When a mosquito bites an infected person, it can pick up the virus in the blood. The virus then multiplies in the mosquito's body and can be transmitted to the next person that the mosquito bites.
Mosquitoes are able to transmit viruses because they have a long proboscis, which is a tube-like structure that they use to suck blood. When a mosquito bites, it inserts its proboscis into the skin of the host and draws blood. The virus can then be transmitted from the host's blood to the mosquito's salivary glands. When the mosquito bites another person, it can then transmit the virus through its saliva.
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Final answer:
Mosquitoes serve as biological vectors for viruses, for example, the West Nile virus and malaria. They transmit these pathogens directly to hosts through their bites. Preventive measures like using insect repellent and protective clothing are encouraged to reduce the risk of vector-borne diseases.
Explanation:
Mosquitoes can often transmit viruses from one organism to another, acting as vectors of the virus. For instance, mosquitoes are a vector for West Nile virus, which they spread without becoming sick themselves. As biological vectors, mosquitoes can transmit viruses and parasites through their bites, injecting these pathogens directly into the bloodstream of their hosts. Diseases like malaria highlight the complexity of this transmission, as the malaria parasites go through various life stages and can be carried by mosquitoes from humans to other hosts, such as monkeys. Vector-borne diseases require detailed knowledge about the behaviors and environments of both the vectors and pathogens involved. Thus, measures such as using insect repellent, wearing protective clothing, and sleeping in well-screened areas are recommended to avoid bites and reduce the risk of infection.
The relationships between a community of plants and animals and their environment are known as a(n) _____. food chain food web ecosystem life cycle
Answer:
ecosystem is the answer
Answer:
The answer? Ecosystem
Explanation:
I had this qeustion on a quiz and got it right.
Which answer choice best describes John Dalton's contribution to atomic theory?
He gave future scientists a foundation for understanding how electrons move.
He gave future scientists a foundation for understanding how atoms make up matter.
He discovered the electron.
He discovered neutrons
He gave future scientist a foundation for understanding how atom make up matter
Answer: Option C
Explanation:
Dalton created the atomic theory of matter, predicting that all the matters are made of different kinds of atoms and it was a building foundation of modern chemistry.
He also stated that different atoms make different elements and can be kept apart by atomic masses.
By this work he gave a future foundation for understanding of how atoms join together to form matter.
Which statement best summarizes Gregory Mendel's contribution to science
Answer:
The statement that best summarizes Gregory Mendel's contribution to science is that Mendel found evidence that there are two factors for each trait.
Explanation:
Mendel is known as the father of genetics. He formulated, through the work he carried out with different varieties of pea, the so-called laws of Mendel that gave rise to genetic inheritance.
By his work he found evidences that there are two factors responsible for carrying the traits from one generation to another. These two forms of traits were dominant (visible in F1 generation) and recessive (visible in F2 generation).
For Example: In peas, the yellow color of the seeds is dominant over the green color, which is recessive.
how much money is spent on space exploration per year?
Nasa spent about $17.5 billion dollars on space exploration in 2015.
The amount of money spent on space exploration per year varies depending on the country and the specific space programs being undertaken. In the case of the United States, NASA's budget for space exploration is approximately $21.5 billion in 2019. This investment is aimed at expanding our knowledge of the universe, developing new technologies, and potentially even finding solutions to global challenges.
Explanation:The amount of money spent on space exploration per year varies depending on the country and the specific space programs being undertaken. In the case of the United States, the National Aeronautics and Space Administration (NASA) is responsible for space exploration. As of 2019, NASA's budget for space exploration is approximately $21.5 billion. This budget includes funding for various missions, research, development of new technologies, and maintenance of existing infrastructure.
It is important to note that space exploration is not limited to NASA. Many other countries also invest in space programs. For example, the European Space Agency (ESA) allocated around 5.72 billion euros (approximately $6.8 billion) for space exploration in 2020. Additionally, private companies like SpaceX, founded by Elon Musk, also contribute to space exploration with their own budgets.
Overall, the amount of money spent on space exploration per year can reach billions of dollars. This investment is aimed at expanding our knowledge of the universe, developing new technologies, and potentially even finding solutions to global challenges.