Discuss the concerns Snelgrove has regarding the health and safety of our oceans and ocean life.
Answers
Dr. Snelgrove's interests include marine community ecology, larval ecology of invertebrates and fish, ecology of benthic invertebrates, hydrodynamic effects on benthic communities and populations, deep-sea ecology, coral reef ecology, biodiversity, and disturbance and anthropogenic impacts.
states that oceans contribute significantly to, not *only* sustaining life on Earth, but they are play a crucial part in nutrient cycling, food, and oxygen, and also influence the weather. As it is all connected, without oceans, there is no life.
What does a marine biologist do?The marine biologist studies the living beings that inhabit marine ecosystems, including not only the oceans, but also environments such as mangrove areas, beaches, coasts, reefs, estuaries, atolls and all other places where marine life can flourish.
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Related Questions
Which event is a direct result of transpiration and evaporation?
A) Moisture leaves the atmosphere.
B) Moisture enters the atmosphere.
C) The atmosphere warms.
D) Cloud cover decreases
Answers
Answer:
B) Moisture enters the atmosphere.
A train accelerated at a constant speed of 235m/s for 8 seconds whats the acceleration during this period?
Answers
Answer:
Explanation:
It would be 235/8. Which is 29.375 meters each second
the difference between lactic acid fermentation and alcohol fermentation
Answers
Answer:
In lactic acid fermentation, pyruvate is reduced to lactic acid. ... In alcoholic fermentation, pyruvate is reduced to alcohol and releases carbon dioxide. This type of fermentation is commonly used with yeast to make alcoholic beverages and cause bread to rise.
Explanation:
what is heterogeneous
Answers
{-} diverse in character or content.
Chemistry:
{-} of or denoting a process involving substance in different phases (solid, liquid, or gaseous).
Mathematics:
{-} incommensurable through being of different kinds, degrees, or dimensions.
theses are the three main meanings
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A scientific theory is a
A. guess that some scientists believe.
B. guess that once was a hypothesis and might one day become a law.
C. well-tested explanation for a wide range of observations or experimental results.
D. law that scientists no longer like and are trying to modify.
Answers
A scientific theory is a well-tested explanation for a wide range of observations or experimental results.
A scientific theory is a well-supported explanation of a particular phenomenon in the natural world that is based on a body of facts that have been repeatedly verified via observation and experiment. Such ideas are not "guesses," but rather trustworthy descriptions of reality. A theory is a collection of interconnected ideas used to describe something.
Scientific theory can be put to the test to either confirm or refute the theory. A theory can refer to a conjecture or a speculative idea. An explanation of a hypothesis that has been repeatedly tested in experiments and found to be correct is referred to be a scientific theory. A rule governing phenomena that cannot be seen with the eye, such as electrons or evolution.
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A scientific theory is a well-organized explanation that frequently includes a scientific hypothesis and scientific principles to explain a collection of facts or events in the natural world. The term "theory" has a different meaning in science than it does in everyday speech.
Scientists use the word "theory" somewhat differently than the general public, according to Jaime Tanner, a biology professor at Boston's Emerson College. Most people use the word "theory" to describe an opinion or hunch, but in science, the term relates to how we interpret the data.
What is Scientific theory?A scientific theory is an explanation for a phenomenon in the natural world or the universe that has undergone extensive testing and verification using approved procedures for observation, measurement, and result evaluation. A scientific theory is a well-tested explanation for a wide range of observations or experimental results.
Scientific hypotheses are testable and capable of being refuted. They explain the origins of a certain natural event and are applied to explain and forecast features of the physical world or specialized fields of study (for example, electricity, chemistry, and astronomy).
Examples of scientific theories in different areas of science include:
• Astronomy: Big Bang Theory.
• Biology: Cell Theory; Theory of Evolution; Germ Theory of Disease.
• Chemistry: Atomic Theory; Kinetic Theory of Gases.
• Physics: General Relativity; Special Relativity; Theory of Relativity; Quantum Field Theory.
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where is a pathogen most likely to enter your body ?
Answers
Answer: It is most likely to enter the body through the skin.
Explanation:
What describes a country with less industry and whose citizens have low average incomes.
Answers
third world countries
Explanation:
are the results of countries with low exports and high imports
Developing works because the low income and socio-economic status comes from them not being stable overall a weak infrastructure unlike second and first world countries, it’ll be a while before they catch up.
Put the following steps in order from 1st to last.
a. DNA is copied into mRNA.
b. The protein is assembled in the ribosome.
C. DNA is copied by a process called replication.
d. tRNA uses the instructions from mRNA to get the appropriate amino acids.
Answers
Answer:
c
a
d
b
Explanation:
1- DNA undergo replication to formed mRNA in nucleus
2- mRNA contain codon that will be paired with anticodon brought by tRNA.
3. Polypeptide chain formed and modified into protein
Answer:
cadb
Explanation:
easy,u need read books more
I need help with this practice problem Fill in the blanks
Answers
Solid fossil fuel are formed over millions of years by decay of land vegatation or plant remains. When the layers are settled and heated, coal is produced as deposits. Fossil fuels are burned to produce energy. Power plants burn coal or oil to build heat that is consequently used to make steam to drive turbines which generate electricity.
Answer - Solid fosiil fuel formed from decay of land vegetation or plant remains. Produces energy when burned.
Which conclusion is supported by the graph The graph demonstrates the quantitative variation for skin pigmentation?.
Answers
More than half of the population has the central skin pigmentation. The lightest and the darkest skin pigmentations are equally common in the population.
Skin, hair, and eye pigmentation differs between and among human populations. Many candidate gene and numerous genome-wide association studies have sought to identify the genes and alleles responsible for this variation (GWAS). Up until now, the majority of GWAS for pigmentary features have relied on categorical scales and subjective phenotypes.
However, the color of the skin, hair, and eyes varies constantly. Here, we aim to identify the genetic basis of the quantitative variance in these qualities and to characterize it objectively and properly. Reflectance or digital spectroscopy were used to evaluate the skin, hair, and eye colors of Europeans from Ireland, Poland, Italy, and Portugal. 176 women participated in a GWAS across 313,763 SNP sites for the three quantitative pigmentation traits.
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Nitrogen (N) is more electronegative than hydrogen (H). Which of the following is a correct statement about the atoms in ammonia (NH3)?
a. Each hydrogen atom has a partial positive charge: the nitrogen atom has a partial negative charge.
b. Ammonia has an overall positive charge. Ammonia has an overall negative charge.
c. The nitrogen atom has a partial positive charge: each hydrogen atom has a partial negative charge.
d. There are covalent bonds between the hydrogen atoms and polar bonds between each hydrogen atom and the nitrogen atom
Answers
The correct statement about the atoms in ammonia ( NH₃ ) is ; ( A ) Each hydrogen atom has a partial positive charge : the nitrogen atom has a partial negative charge
Since Nitrogen is more electronegative than hydrogen in ammonia each of the hydrogen atom will have a partial positive charge while the nitrogen atom will have a partial negative charge.
The type of bonding that exists in NH₃ is covalent bonding since Hydrogen and Nitrogen are both Non-metallic. while the bonding between hydrogen atoms is a dipole to dipole bonding and not completely a covalent bond.
Hence we can conclude that in NH₃ Each hydrogen atom has a partial positive charge while the nitrogen atom has a partial negative charge
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pls help What is the biggest drawback of nuclear energy?
it is very safe
it produces radioactive waste
it produces a lot of energy
It is limitless.
Answers
Answer:
maybe it's can cause radioactive contamination when leaked?
Select all that apply. Diatoms are able to Group of answer choices produce two flagella that provide motility and reduce sinking. store oil to reduce their density. form chains to help floating.
Answers
Diatoms are able to Produce two flagella that provide motility and reduce sinking and store oil to reduce their density.
Diatoms are single-celled organisms that are part of the Bacillariophyta subclass of algae. Due to their special adaptations, they can live and flourish in aquatic environments. They have two flagella, which are whip like appendages that enable them to move through water and lessen sinking as one adaptation.
For diatoms to access nutrients and sunlight, they need to move around. Diatoms can also store oil within their cells, which aids in controlling their buoyancy. They increase their chances of surviving and procreating by controlling their density and remaining suspended in water as a result of accumulating oil droplets.
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Part A
You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:
Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.
Answers
Based on the mutation rate of the molecular clock, it will take 22.5 million years for one full base pair mutation to occur.
What is a molecular clock?A molecular clock is a biomolecule which is chosen to serve as a clock due to its periodical changes in a regular pattern.
Mutation in genes can serve as molecular clock.
The mutation in the gene of coding for the venom mutates at a rate of 0.76 base pairs every 17.1 million years.
It will take 17.1/0.76 = 22.5 million years for 1 base pair to mutate.
Therefore, it will take 22.5 million years for one full base pair mutation to occur.
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Xavier drew a diagram to compare the roles of oxygen and hydrogen in photosynthesis.
Which label belongs in the area marked X?
Enters plant as a part of the water
Combines with carbon dioxide
Is released into the air through stomata
Is stored in leaves for later use
Answers
Answer:
Is released into the air through stomata
Explanation:
Oxygen and hydrogen both exists as gaseous molecules in the atmosphere. However, one of them (oxygen) is a product of photosynthesis while the other (hydrogen) is one of the constituents of the molecule that starts the process of photosynthesis.
According to this question, the X used in the attached diagram is the role of oxygen in photosynthesis. Oxygen is released as a product of photosynthesis and goes out of the plant into the air via the STOMATA. Hence, the gas released into the air via stomata is OXYGEN.
Answer:
C. Is released into the air through stomata
Explanation:
:3
how do skin cells replace itself after an injury?
a) skin cells go through the process of budding to make new identical cells.
b) skin cells go through the procces of mitosis to make new identical cells.
c) skin cells go through the process og photosynthesis to make new identical cells.
d) skin cells go through the process of cellular respiration to make new identical cells.
Answers
Answer:
d
Explanation:
as a result of accumulation of waste products in the body , these substances are removed from the body via the skin hence they undergo cellular respiration
Answer:
b) skin cells go through the process of mitosis to make new identical cells.
Explanation:
The skin is the largest organ in the human body; it forms a protective barrier that keeps out external pathogens, and is integral to waste removal. When the organ is injured, damaged cells initiate an immune response, while healthy cells nearby begin to replicate.
This type of cell replication involves somatic cells and results in the diploid number of chromosomes called mitosis. Skin cells are somatic- they contain all 24 pairs of human chromosomes. During replication, the chromosomes are unwound, and copied- then, the newly copied chromosomes separate into two identical daughter cells with the same chromosome number.
maggots feed on dead and decaying organisms for energy. what are maggots?autotrophsproducersdecomposers
Answers
Maggots are decomposers. Decomposers are organisms that break down dead and decaying organic matter, such as dead plants or animals, and obtain energy from the process.
Maggots are the larval stage of various types of flies, and they play a crucial role in the process of decomposition by feeding on the decaying organic material.
They help to break down the complex organic compounds into simpler forms, facilitating the recycling of nutrients back into the ecosystem.
These larvae are commonly found in environments where dead animals, rotting food, or other organic material is present. They play a vital ecological role as decomposers, breaking down the organic matter and helping to recycle nutrients back into the ecosystem. Maggots have specialized mouthparts for feeding, and they primarily consume decaying flesh, rotting vegetation, or other decaying organic materials.
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Name THREE ways Earth’s oceans affect your life.
Answers
The ocean is good for animals, animals need the water and animals help the water in some type of way. And half of the people including me loves sea animals, so without the ocean, there will be no sea animals.
And the ocean is good because it produces oxygen and carbon dioxide.
Three ways by which Earth's ocean affects your life are it supplies freshwater (most rain comes from the ocean) and nearly all of Earth's oxygen. The ocean moderates the Earth's climate influences our weather and impacts human health.
What are the oceans' effects?It offers food, medications, minerals, and sources of renewable energy. Fishing, seafood, pleasure, and science are all supported by it. Our ocean is the first "super-highway," connecting economies and moving people and things around the world.
Animals benefit from the ocean, as they both need and contribute to the water in some form. And since I am one of the people that like sea life, there wouldn't be any sea life without the ocean.
Therefore, additionally, the ocean is beneficial since it emits carbon dioxide and oxygen.
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since cells are filled with water, what would happen to biologically important molecules if they were held together with ionic bonds?
Answers
Ionic bonding involves electrostatic interactions between oppositely charged ions, and can significantly enhance the binding strength of biomolecules immobilized to materials.
A chemical link known as an ionic bond occurs when an electron is transferred from one atom to another. Ionic bonding requires the presence of an electron acceptor and an electron donor, which is frequently a metal (often a nonmetal). Electrovalence is the process of moving electrons. A positive ion, also known as a cation, is created when an atom loses one or more electrons. The other atom that picks up one or more electrons will change into a negative ion known as an anion. The elemental name is modified by adding a -ide at the end to designate the ion that accepts the electron. For instance, the name of the anion of chlorine is chloride while the anion of sulfur is sulfide.
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in a frog, the segregation of inputs from two eyes that are forced to innervate a single optic tectum requires
Answers
In a frog, the segregation of inputs from two eyes that are forced to innervate a single optic tectum requires activity-dependent mechanisms.
The optic tectum, also known as the superior colliculus, is a structure in the brain of frogs (and other animals) involved in visual processing. In normal circumstances, each eye sends its visual inputs to separate regions of the optic tectum, allowing for the processing of visual information from each eye independently. However, if the inputs from both eyes are forced to innervate a single optic tectum, such as through experimental manipulations, segregation of these inputs is necessary to maintain visual discrimination.
The segregation of inputs in this scenario relies on activity-dependent mechanisms. The visual inputs from each eye compete for synaptic connections in the optic tectum, and through a process called synaptic plasticity, the connections are refined based on neural activity patterns. Neurons that are more active in response to one eye's input will strengthen their connections with that eye, while weaker connections with the other eye will be pruned. This activity-dependent refinement allows for the segregation of inputs and the establishment of distinct eye-specific connections in the optic tectum.
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chemotaxis refers to the ability of microorganisms to __________.
Answers
Chemotaxis refers to the ability of microorganisms to move toward or away from a chemical stimulus.Chemotaxis is the movement of a cell or an organism in response to a chemical stimulus.
Microorganisms are the smallest forms of life and consist of bacteria, viruses, fungi, and other microorganisms. These microorganisms have the ability to move towards or away from a chemical stimulus in their environment, a property known as chemotaxis. The chemical stimulus might be a nutrient or a toxin.Microorganisms have a diverse range of chemotactic abilities that enable them to navigate their environment efficiently.
Some microorganisms, for example, have evolved the ability to detect and move towards nutrient sources in the environment, allowing them to obtain nutrients effectively. Others can move away from toxic substances or predators that pose a risk to their survival.Chemotaxis is one of the most important adaptations that microorganisms have developed in response to their environment. It allows them to sense and respond to changes in their surroundings, providing a crucial advantage in their quest for survival.
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Chemotaxis is the phenomenon of microorganisms, particularly leukocytes, moving directionally in response to chemical signals emitted by damaged cells or pathogens. These signals, chemokines and complement factor C5a, draw leukocytes towards the source and plays a crucial role in the body's defense system.
Explanation:Chemotaxis refers to the ability of microorganisms, such as leukocytes, to move in a directed manner towards or away from a stimulus. This is often in response to chemical signals, like chemokines and complement factor C5a, which are released by damaged cells, pathogens or inflammation sites. These chemical signals draw leukocytes towards the source, following the increasing concentration gradient. This chemotactic response is a vital part of the body's immune defense, as leukocytes are key in combating infections and facilitating healing processes.
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Compare and contrast passive transport, active transport, and osmosis
Answers
Answer:
Passive transport moves molecules and ions from a higher concentration to a lower concentration without any energy while active transport does the same thing only it uses energy. Osmosis deals with the net movement of solvent molecules through a membrane with a higher solute concentration. Osmosis and active transport both work together, while osmosis does its own movement the active transport moves the dissolved solutes across a membrane against a concentration gradient.
Active transport and passive transport are almost the same they function the same only one doesn't require energy while the other one does. Hence why active transport and osmosis work well together it's because of the energy that helps transport dissolved solutes.
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how did each condition affect the water ppotential gradient between the leaf tissue and the environment
Answers
Each condition affect the water potential gradient between the leaf tissue and the environment by transpiration pull.
The process of transpiration occurs when water moves through a plant and evaporates via its exposed surfaces, such as the stem, leaves, or flowers. The primary element in the leaves and stem that contributes to transpiration is the stomata. The water moves up via the xylem, which starts at the surface of mesophyll cells, and this movement is what creates the transpiration pull.
Water moves up the stem by transpiration pull as a result of the light and fan decreasing the water potential in the leaves. The water potential was largely unaffected by the ambient temperature. Less transpiration from the plants resulted from the mist's higher air's water potential.
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what are the four major blood vessels in the heart
Answers
The four major blood vessels in the heart are:
1. Aorta: The aorta is the largest artery in the body and carries oxygenated blood from the left ventricle of the heart to the rest of the body. It distributes oxygen-rich blood to various organs and tissues.
2. Pulmonary Arteries: The pulmonary arteries carry deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. There are two pulmonary arteries, one for each lung.
3. Superior Vena Cava: The superior vena cava is a large vein that carries deoxygenated blood from the upper body and arms back to the right atrium of the heart. It collects blood from the head, neck, upper limbs, and upper chest.
4. Inferior Vena Cava: The inferior vena cava is another major vein that carries deoxygenated blood from the lower body and legs back to the right atrium of the heart. It collects blood from the abdomen, pelvis, and lower limbs.
These four major blood vessels play crucial roles in the circulation of blood within the heart and throughout the body, ensuring the delivery of oxygen and nutrients to various tissues and the removal of waste products.
If dev also has an absolute advantage in growing strawberries and raspberries , he will _________.
Answers
Have a competitive advantage in one of the activity but not both.
If dev also has an absolute advantage in growing strawberries and raspberries , he will have a competitive advantage in one of the activity but not both.
What is comparative advantage?Comparative advantage is the capacity of an economy to produce a particular good or service at a lower opportunity cost than its trading rivals.The notion of comparative advantage explains why trade may benefit people, countries, or businesses.The importance of comparative advantageCompanies that enjoy a comparative advantage can provide their goods and services at lower prices than their competitors, which boosts their profit margins and increases their sales margins.How is comparative advantage determined?If a country produces a good or service with the lowest opportunity cost, it is said to have a comparative advantage.To learn more about comparative advantage visit:
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Are genes sections of carbohydrates that are used for dna
Answers
Answer:
No
Explanation:
Carbohydrates are a source of energy for the body to use. DNA is your genetic code, it can't be altered unless through sexually reproduction. Genes are your physical attributes that are gained through the combination of your parents DNA
What does the Monosaccharide do for the human body ?
Answers
7
help!
------------
Answers
Answer:
hmm
Explanation:
Answer: Question?
Explanation:
- is a covalent compound stimulates the pleasure areas in our brain making us feel good ,speed up the activity in brain and keep us awake
Answers
Answer:
Dopamine
Explanation:
The correct answer would be dopamine.
Dopamine is a chemical messenger produced in the substantia nigra, ventral tegmental area, and hypothalamus of the brain and has a variety of functions, including mediation of pleasure, learning, movements, sleep, etc.
Dopamine is released by the brain during pleasurable situations. The compound also has the ability to inhibit the actions of norepinephrine to make one feels alert and speeds up the activity in the brain.
Answer:
its dopamine..........
when the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories, true or false?
Answers
The given statement "When the brain integrates signals from different sensory systems, all these signals receive equal weight in determining the actions & forming memories" is false is the brain's capability to unite sensory signals from all over the body and respond appropriately is known as sensory integration.
When different senses and their inputs are combined and coordinated to create a proper reaction to the environment, it is known as sensory integration. Sensory integration (SI) refers to a neurological procedure that organizes sensory information from the environment and the body into usable sensory experiences.
The idea is that the brain will combine the many senses to create a full picture of the surrounding environment and respond accordingly. The sensory integrative process includes several steps in which the nervous system gets, modulates, and incorporates sensory inputs from various sources into a single functional output.
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