for thousands of years, clams have been dug up along the beaches of california for food, first by native americans, and these days by tourists. today, the clam population is at an all-time low, and many scientists agree that several species of clams will inevitably become extinct in california. dr. clay, a marine biologists, believes that ddt (a pesticide) dumped into the ocean during the 1950’s and 60’s could be another factor in the dramatic decrease in the clam population.
Answers
The questions with proper answers related to this decrease in clam population are:
Name the person who came up with the phrase "Tragedy of the Commons" and define it.
The situation in which individuals use a common resource for their own personal gain is what we called as "Tragedy of the Commons" , The person who came with this phrase is Garrett Hardin.
Describe why the clam population collapse might be viewed as an instance of a tragedy of the commons.
The tourists began to use the resource for their own pleasure and attraction to California, and started to overusing it this is why clam population collapse should be viewed as an instance of a tragedy of the commons.
Determine AND explain two methods that could be employed to avoid any population loss in clams brought on by a tragedy of the commons.
Two methods could be: put a limit on the amount of clam that can be dug up, and factor in the environmental costs to the price of the clam.
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Related Questions
How do biologist describe the total number of
chromosomes present in human body cell?
Answers
Answer: I belive its autosomes
after a skin injury, the body initiates a wound-healing response. the first step of this response is the formation of a blood clot to stop bleeding. which of the following would be the next response? increased production of melanin by melanocytes increased production of connective tissue an increase in pacinian corpuscles around the wound an increased activity in the stratum lucidum
Answers
After forming a blood clot to stop bleeding, the next response in the wound-healing process is typically increased production of connective tissue.
What are fibroblasts?Fibroblasts are connective tissue cells that are critical in wound healing and tissue repair. These cells produce and secrete extracellular matrix proteins, such as collagen, elastin, and glycosaminoglycans (GAGs), which form the structural framework of tissues.
How do fibroblasts work?When tissue damage occurs, fibroblasts migrate to the injury site, increasing and producing new extracellular matrix proteins. The fibroblasts also contract and pull the edges of the wound together, helping to reduce the size of the wound. Fibroblasts also play a role in tissue remodelling, breaking down and synthesising extracellular matrix proteins.
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Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.
is random
is a mechanism for evolution
is often related to disasters
is also called “migration”
deals with movement between populations
Answers
Answer:Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation.
✔ Genetic drift
is random
✔ Both
is a mechanism for evolution
✔ Genetic drift
is often related to disasters
✔ Gene flow
is also called “migration”
✔ Gene flow
deals with movement between populations
Explanation: i got it right
Answer:
Genetic drift- is random
Both- are a mechanism for evolution
Genetic drift- is often related to disasters
Gene flow- is also called "migration"
Gene flow- deals with movement between populations
Explanation:
I just did the assignment. Hope this helped :)
The ______ refers to paired oval masses that lie on each side of the third ventricle between the anterior commissure and the pineal gland. Multiple choice question. diencephalon hypothalamus epithalamus thalamus
Answers
The correct answer to the multiple choice question is "epithalamus". The epithalamus is a part of the diencephalon, which includes the thalamus and hypothalamus.
The pineal gland is located within the epithalamus and plays a role in the regulation of circadian rhythms and the production of melatonin. The hypothalamus controls the autonomic nervous system and the endocrine system, while the thalamus acts as a relay center for sensory information. The thalamus refers to paired oval masses that lie on each side of the third ventricle between the anterior commissure and the pineal gland. As a crucial part of the diencephalon, the thalamus plays a significant role in processing and relaying sensory information to the appropriate regions of the cerebral cortex. It also aids in regulating consciousness, sleep, and alertness. The pineal gland, located nearby, is responsible for the production of melatonin, a hormone that regulates sleep-wake cycles. In summary, the correct answer is the thalamus.
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Which hormone would have an N-signal peptide as a portion of the original gene transcript? a. GH b. Cortisol
c. Epinephrine d. T4 (thyroid hormone)
Answers
Option d is Correct. The original gene transcript for the thyroid hormone T4 would contain an N-signal peptide. A second name for epinephrine is adrenaline.
The three different forms of hormones—steroid, peptide, and tyrosine-derived hormones—must be understood. Tyrosine is the source of the hormones catecholamines, such as adrenaline, and thyroid-stimulating hormone. Peptide hormones include growth hormone, luteinizing hormone, and follicle-stimulating hormone.
It is a steroid hormone that the adrenal glands' chromaffin cells secrete as part of the "fight or flight" response. Triiodothyronine (T3) and thyroxine are released by the thyroid gland (T4). Being a crucial component of the endocrine system, these hormones regulate your metabolism, weight, energy levels, internal temperature, skin, hair, and nail growth.
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Give an example of 3 detrivores. On what do they feed?
Answers
Answer:
Sea cucumber,Vulture, and worms
they feed on dead organisms
Explanation:
Answer:
Vultures, worms, and crabs
Explanation:
they feed on dead organisms
How does a planet’s orbital radius relate to its period?
Answers
Answer:
hope this helps :)
Explanation:
Kepler's Third Law: the squares of the orbital periods of the planets are directly proportional to the cubes of the semi major axes of their orbits. Kepler's Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.
A species of birds lives in the jungle. They have long, thin beaks that allow them to find ants and other things to eat deep inside of tree trunks. Both male and female birds have large talons (claws) that allow them to hold onto tree branches as they pick at the trunks. The males have colorful feathers that help them attract females. The females, on the other hand, have larger tails that they flutter when they are ready to reproduce. Recently, developers have been cutting down many of the trees that these birds rely on for food to make room for more buildings. Which of the following describes how the birds will most likely be affected by the change?
Answers
The tree-cutting will probably have a severe impact on birds with long, thin beaks and large talons. Their ability to survive and procreate could be impacted by the decreasing availability of their food source and habitat.
Might the overall population be impacted by the decline in bird populations brought on by tree-cutting?The loss in bird populations brought on by tree-cutting may indeed affect the males' capacity to attract females and the females' capacity to locate compatible mates, potentially resulting in a decline in the population as a whole. This emphasizes how crucial biodiversity and natural habitats are to the health of ecosystems.
What is a bird's long, pointed beak designed for?Birds that consume nectar have long, slender, and pointed beaks. Providing insects and nourishment to the young, aids in sipping nectar. Hummingbirds are an illustration of such birds.
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Consider that the number of ATP molecules formed through cellular respiration varies. Identify the claim that accounts for these differences.
a. The ATPs produced are immediately utilized in the anaplerotic reactions that are used for the replenishment of the intermediates.
b. Most of the ATPs produced are rapidly used for the phosphorylation of certain compounds found in plants.
c. Transport of NADH from cytosol to mitochondria is an active process that decreases the number of ATPs produced.
d. A large number of ATP molecules are used in the detoxification
Answers
The anaplerotic processes that are employed to replenish the intermediates consume the ATPs generated right away. (Position A)
How are molecules created?The electron clouds and nuclei interact when atoms are close to one another. The atoms join together to form molecules if this interaction lowers the system's overall energy.
Why is it referred to as a molecule?Covalent bonds are created when atoms share electrons, and the resulting group of bonded atoms is what we refer to as a molecule. A molecule is the smallest unit of a covalent compound, much like an atom is the smallest unit of an element.
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Which of the following are all abiotic factors?
A. Primary consumers, secondary consumers, and producers
B. Sunlight, precipitation, wind speed, and temperature range
C. Detritivores, herbivores, carnivores, and omnivores
D. Microorganisms and mineral content
Answers
Explanation:
Option B is correct as abiotic factors includes non-living factors.
Answer:
B is the correct answer.........
which factor contributes to both chemical and mechanical weathering
Answers
Answer: The factor which contributes to both chemical and mechanical weathering is water.
Explanation:
What is chemical weathering?
Chemical weathering is the erosion or disintegration of rocks, of soil materials, by chemical reactions.
The major factor contributing to chemical weathering is water and minerals dissolved in it while mechanical weathering such as abrasion, freezing etc, is also caused by water.
Thus, we can conclude that, the factor which contributes to both chemical and mechanical weathering is water.
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All of the following statements are true concerning skeletal muscles EXCEPT: A. Skeletal muscles control involuntary body functions. B. Skeletal muscles are controlled by the central nervous system. C. Skeletal muscles are used to move large body parts. D. Skeletal muscles are attached to the bones. Please select the best answer from the choices provided. A B C D
Answers
Answer:
A. Skeletal muscles control involuntary body functions.
Explanation:
Skeletal muscle is also known as voluntary muscle and it can be defined as a type of muscle connected with the skeleton by tendons, so as to form a mechanical system that enables the movement of the limbs and other body parts with respect to another.
Generally, skeletal muscles are only found in vertebrates.
Skeletal muscles doesn't control involuntary body functions, instead it controls voluntary body functions such as the movement of body parts.
In conclusion, an example of a muscle responsible for controlling involuntary body functions is cardiac muscle.
Answer: the answer is a
Explanation:
The top one is correcto
If a hypothetical bird community consisted of 30 robins, 10 blue jays, 6 cardinals, and 10 grackles, which of the following would be true? (Check all that apply)
-having the number of robins would decreased diversity
-having the number of robins would increase diversity
-doubling the number of Cardinals will decrease diversity
-doubling the number of Cardinals will increase diversity
-doubling the number of Blue Jays would increase species richness
Answers
The correct options are A, C, and E.
In the hypothetical bird community consisting of 30 robins, 10 blue jays, 6 cardinals, and 10 grackles, the following statements would be true:
- Having the number of robins would decrease diversity, as they make up a large proportion of the community, limiting the evenness of species.
- Doubling the number of cardinals will increase diversity, as it will make the community more even in terms of species representation.
- Doubling the number of blue jays would increase species richness as it would increase the total number of individuals in the community, but it would not necessarily affect diversity if the proportion of species remained the same.
Therefore, A, C, and E are true statements.
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Select the correct answer.
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities
such as moving muscles. Explain the energy transformation in this process.
A.
B.
C.
OD.
Chendhal energy from broken bonds is transformed into mechanical energy for muscles.
Mechanical energy from broken bonds is transformed into chemical energy for muscles.
Mechanical energy from broken bonds is transformed into electrical energy for muscles.
Heat energy from broken bonds is transformed into electrical energy for muscles.
Reset
Next
Answers
The correct answer is D. Heat energy from broken bonds is transformed into electrical energy for muscles.
In the process of respiration, when chemical bonds inside the body break during the breakdown of molecules like glucose, energy is released in the form of heat. This heat energy is then transformed into other forms to carry out various activities, including muscle movement.
During muscle contraction, the heat energy released from the broken chemical bonds is transformed into mechanical energy. This mechanical energy allows the muscles to perform physical work such as movement and exertion.
The energy transformation occurs within the muscle fibers, converting the heat energy into mechanical energy to enable muscle contraction.
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12. Scientists once thought that the continents had formed in their current locations shown in the map
below. Alfred Wegener first published his theory of continental drift in 1951 that described continents as
mobile objects on the surface of the Earth.
Equator
Pacific
Ocean
North
America
Atlantic
Ocean
South
America
hectic Ocean
Europe
Africa
Southern Ocean
Antarctica
Asia
Indian
Ocean
430
Pacific
Ocean
Australia
Which of the following provides evidence for continental drift?
Answers
Africa, North America, and South America are seen to fit together like puzzle pieces, supporting the notion of continental drift.
What is the theory of continental drift?In the 20th century, Alfred Wegener published the theory. The hypothesis says that each continent is made up of a single landmass that has been drifting away over time.
The five supporting evidence for the idea includes fossils, truncated geologic features, paleoclimate indicators, and the fit of the continents.
The proper response is therefore that North America, South America, and Africa almost fit together like puzzle parts.
The movement of the Earth's continents relative to one another, giving the impression that they are drifting over the ocean floor together, is known as the Theory of Continental Drift.
Alfred Wegener proposed the continental drift hypothesis in 1912, which contends that at one time, the continents were united together as a single huge mass of land, after which the land separated and drifted to its present locations.
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During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring. Based on the ideas of artificial and natural selection, do you think this project worked as planned
Answers
Answer:
No
Explanation:
Trofim Lysenko was a Biologist in the then Soviet Union, who did not believe in the fundamental laws of science. Selective breeding is the method developed by humans to change certain characteristics of species to desired outcomes. This is based on the fact that living things have inheritable traits encoded in genes that can be passed from one generation to another.
Lysenko did not believe in this fact. He rather believed that when exposed to the right environment, plants and animals soon become adjusted to the exposure and can then develop traits that would be passed on to their offsprings. He applied this theory of his when he exposed wheat plants to cold believing that they would develop tolerance to cold. This failed woefully and resulted in severe starvation that caused the death of millions of people in the Soviet Union.
Select the correct answer. Which of the following has become today’s major cause of mass extinction? A. Adaptive radiation B. Human activities C. Addition of new species
Answers
Answer:
Human activities, by us doing certain things like cook outs and parties, we lack the sense to clean up after ourselves or to put other species into consideration.
Explanation:
Mass extinction is the rapid vanishing of the organism from the planet due to some extreme conditions. Human activities can be the major cause of mass extinction.
What are adaptive radiation and human activities?Human activities like deforestation, burning of fossil fuels are aiding the global warming process that results in the alteration of the climatic conditions.
The change in the climate and increased global warming are the major causes that have led to the endangerment and extinction of many species and will be the major cause of mass extinction.
Adaptive radiation is the ecological process in which the species diversifies to form a new group of the organism of a particular niche. It will not contribute to mass extinction.
Therefore, option B. human activities can be the cause of mass extinction.
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which is the most poisonous fish in the world?
Answers
Answer:
The reef stone fish
Explanation:
it erects 13 venomous spikes along it's back
Which describes the two ways that energy is measured?
in convection and in temperature
in temperature and in radiation
in radiation and in convection
in wavelength and in temperature
Answers
Answer:
The answer is D. In wavelength and temperature
Explanation:
can I have brainiest Please
Energy is the ability to do work, and it is measured in two ways: in temperature and in wavelength. Temperature is a measure of the average kinetic energy of the molecules in a substance, and is typically measured in degrees Celsius or Kelvin.
What is Wavelength?Wavelength, which is commonly expressed in nanometers (nm), is a measurement of the separation between two adjacent points in a wave pattern.
The average kinetic energy of the molecules in a substance is measured by thermometers to determine temperature. This is accomplished by measuring a material's thermal expansion during heating or contraction during cooling.
The molecules have more kinetic energy at higher temperatures. Temperature is an important factor in convection, which is the transfer of heat energy from one place to another through the movement of fluids or gases. Wavelength is measured with spectroscopy, which is the study of the interaction of light with matter.
Spectroscopy is used to measure the wavelength of light, which is the distance between two successive points in a wave pattern. Wavelength is an important factor in radiation, which is the emission of energy in the form of electromagnetic waves. Radiation is the main way that energy is transferred from one place to another in space.
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state 3 main parts of eukaryotic cell
Answers
Answer:
The three main parts of a eukaryotic cell are the cell membrane, the cytoplasm and the nucleus.
Answer:
Cell Membrane, Cytoplasm, and The Nucleus.
Explanation:
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Answers
Answer: is B
Explanation:
Complex microbial communities that grow tightly adhered to surfaces are called __________.
A. polysaccharide clusters
B. growth communities
C. film residues
D. biofilms
Answers
Complex microbial communities that grow tightly adhered to surfaces are called biofilms.
Biofilm is indeed a complex microbiome structure composed of different bacteria living or single types of cells that stick to the surface. Microorganisms adhere to surfaces and form biofilms. Biofilm-associated cells can be distinguished from their suspended counterparts by the production of the an extracellular polymeric substance (EPS) matrix, slower growth rates, and the regulation of specific genes.
Attachment is a complex process that is influenced by the growth medium, substratum, as well as cell surface. An established biofilm structure is composed of microbial cells and EPS, does have a defined architecture, but also provides an optimal environment for cell-to-cell genetic material exchange. Cells also may communicate through quorum sensing, which may affect biofilm processes like detachment.
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Identify the labeled structures. A B C D E
Answers
Answer:
A Golgi body
B vacuole
C mitochondrion
D nucleus
E cell membrane
Explanation:
Answer:
A: Golgi body
B: Vacuole
C: Mitochondrion
D: Nucleus
E: Cell membrane
Explanation:
I did the assignment on Edg2021
How will the movement of water affect the cell?
Answers
Answer:
Water can move across membranes, but polar solutes dissolved in water cannot. ... A hypertonic solution has increased solute, and a net movement of water outside causing the cell to shrink. A hypotonic solution has decreased solute concentration, and a net movement of water inside the cell, causing swelling or breakage.
Two genes on a linkage map are 9 map units apart. This means that in 9 percent of the offspring, the phenotypes from those genes will
Answers
Two genes on a linkage map being 9 map units apart means that in approximately 9 percent of the offspring, the phenotypes from those genes will recombine.
Linkage maps are genetic maps that depict the relative positions of genes on a chromosome based on the frequency of genetic recombination between them. The unit of measurement on a linkage map is called a "map unit" or "centimorgan" (cM), which represents a 1 percent recombination frequency.
If two genes are 9 map units apart, it indicates that in approximately 9 percent of the offspring, there will be a recombination event occurring between the two genes during meiosis. This recombination leads to the formation of new combinations of alleles, resulting in different phenotypes compared to the parental genotypes.
The percentage of offspring showing recombination reflects the distance between the genes on the chromosome. A larger map unit distance corresponds to a higher likelihood of recombination and a greater chance of observing phenotypic variations.
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Name the type of silkworm reared in Nepal with scientific Name?
Answers
Answer:
Silk is a natural protein fibre and the scientific name is Bombyx Mori and it is related to the silkworms.
Explanation:
Larva and Mulburry are silkworms reared in Nepal.
All of the following are examples of courtship rituals except:
Question 1 options:
fighting
special dances or other physical actions
hiding
mating calls or songs
bringing gifts
releasing chemicals that a member of the opposite gender will respond to
Answers
Answer:
fighting
Explanation:
meaning of fighting?
1a : to contend in battle or physical combat especially : to strive to overcome a person by blows or weapons The soldiers fought bravely. b : to engage in boxing He will fight for the heavyweight title next month. 2 : to put forth a determined effort They were fighting to stay awake. transitive verb.
Answer:
fighting
Explanation:
The photo shows one kind of sensory organ a owl has. Which external stimulus is this sensory organ best able to detect?
O
A. The motion of a mouse
0
B. The sound of a hawk
a
C. The smell of a flower
o
D. The taste of a rabbit
Answers
The sensory organ in the photo is an owl's tuft of feathers, which is best able to detect the motion of a mouse. Option A is Correct.
The tuft of feathers on an owl's head is called the "occipital ridge" or "facial disc." It is a collection of long, dense feathers that stick up from the top of the head, giving the owl a distinctive appearance. The facial disc is an adaptation that helps owls to locate prey in the dark.
The facial disc is covered in small, sensitive receptors called "barbs" that are sensitive to touch. These barbs are arranged in a pattern that allows the owl to detect the movement of prey in the dark. When a mouse moves, for example, it disturbs the air around it, causing the barbs on the facial disc to vibrate. The owl's brain interprets these vibrations as information about the location and movement of the mouse. Option A is Correct.
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Correct Question:
The photo shows one kind of sensory organ a owl has. Which external stimulus is this sensory organ best able to detect?
A. The motion of a mouse
B. The sound of a hawk
C. The smell of a flower
D. The taste of a rabbit
**need an answer quick, if you could! :D**
A species of flowers exhibits incomplete dominance between the allele
for red flowers (R) and the allele for white flowers (1) resulting in pink
heterozygotes. If a pure red flower is crossed with a pink flower, what percentage of the offspring will have pink flowers?
75%
50%
25%
100%
Answers
Answer: 50%
Explanation:
The genotypes would be RR(red) x RW(pink) which would yield 2 RR offspring and 2 RW offspring
Sorry if it’s too late
Alpha-linolenic acid and linoleic acid are ________ fatty acids.
Answers
Alpha-linolenic acid and linoleic acid are Polyunsaturated fatty acids (PUFA). These amino acids contain multiple unsaturated bonds.
What are the Polyunsaturated fatty acids (PUFA)?Polyunsaturated fatty acids (PUFA) are the fatty acids which contain more than one double bond in their backbone structure. This class of fatty acids include many important compounds, such as essential fatty acids and those which give drying oils their characteristic property.
Essential fatty acids are the fatty acids which cannot be synthesized in the body. Alpha-linolenic acid and linoleic acid are the polyunsaturated fatty acids (PUFAs) which are present in the food.
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