Explanation:
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part d
changes in ecosystems can be attributed to natural causes, such as natural disasters, seasonal variations in climate, currents, and tidal activity. many of these changes can affect the amount of food
resources available in an ecosystem. research one natural change that currently affects or could affect
the aquatic ecosystem you chose. use your food web model to explain how this change can affect the
competition of food resources in your aquatic ecosystem.
the ecosystem that i made my food web model after was the san francisco bay!!
A natural change that currently affects or may affect the aquatic ecosystem of the bay of san francisco is the warming of the waters due to global warming and rising river levels.
What happens to water in global warming?As a result of global warming and the increase in the emission of greenhouse gases, the heat retained in the atmosphere ends up being stored in the oceans, affecting the temperature and circulation of water, in addition to accelerating the process of melting of the polar ice caps.
With this information, we can conclude that a natural change that currently affects or may affect the aquatic ecosystem of the bay of san francisco is the warming of the waters due to global warming and rising river levels.
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List and describe the five kingdoms of life. Who developed this system? What is the basis for the divisions? Why is it important to the study of biology?
Answer:
Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.
Why would a civilization choose to live near a river that regularly floods?
o a. the flooding provides extra water for drinking.
o b. flooded rivers have more fish than other rivers.
o c. rivers carve out extra land along the banks after floods.
d. rivers leave fertile soil along their banks after floods.
Rivers with regularly floods leaves fertile soil along their banks which is why a civilization will choose to live near there.
What is Fertile?
This is defined as the ability of land to produce crops and vegetation in abundant quantities.
Flooding washes minerals and humus to the bank of rivers which favors growth of plants which is why option D was chosen.
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Which is a type of star system? dim stars solar system planets wobbling stars globular clusters
Globular clusters is a type of star system where the stars are tightly bounded by gravity.
What is a star system?A star system can be defined as small number of stars that orbit around each other and are bound by gravitational force of attraction.
It is also called a stellar system.
Globular clusters is a type of star system with the following features;
It is composed of hundreds or thousands of low-metal old stars. Stars are similar to those in the spiral galaxyStars are tightly bound by gravity.Hence, globular clusters is a type of star system.
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Answer:
D) Globular clusters
Explanation:
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What is the importance of having the US forest service, the Bureau of Land Managment, the US Fish and Wildlife service, and the National park service?
Answer:
It protects ecosystems, supervises public access of lands, and manages wilderness areas. It supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws.
Answer: ooooooooooo
Explanation:
What would you expect to happen to your Expiratory Reserve Volume when you are treading water in a lake
The Expiratory Reserve Volume will decrease when an individual is treading water in a lake.
What is Expiratory Reserve Volume?Expiratory Reserve Volume, ERV, is the additional volume of air which can be forcefully expired with maximum extra effort beyond the volume that can be expired in normal expiration.
ERV normally decreases with exercise.
Therefore, the Expiratory Reserve Volume will decrease when an individual is treading water in a lake.
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The primary site of lipid digestion and absorption is the.
Answer:
The small intestine
Explanation:
trust me
The organisms in the diagram below represent an energy pyramid. Which of the following best explains why the number of organisms at each level decreases while moving up the energy pyramid? A. The animals at higher levels are more competitive, so fewer animals survive. B. The animals at higher levels move more than the animals at lower levels, so they require more energy. C. The animals at each level use energy, so only a small amount of their energy is available to the next level. D. The animals at each level have more predators, so they produce more offspring.
Answer:
option #3
Explanation:
each tropic level gets only 10% of the energy from the thing it eats because that organism uses loses energy when it moves or by heat.
According to these data, the unknown bacterial
species is most closely related to
1) species l
2) species ll
3) species lll
4) species lV
Answer:
4
Explanation:
species IV
Did you understand what a control in an experiment was? meowsis
Answer:
A control in an experiment is a replica used to confirm that the results or changes in the dependent variable/s are caused by the independent variable values or treatments. There are different kinds of controls according to the experiment, for example, no treatment can be applied, or for example in laboratory experiments, there are controls to check that the reactives function properly, making a replica with them but without the sample that is being measured.
Explanation:
There is a variety of verbal and physical techniques for controlling and restraining animals . List some of the verbal and physical techniques that you use to restrain or control your pet or family pet at homeWhich techniques would you specifically use when you take your pet to a veterinarian and why?
The appropriate restraint is all about empathy, finesse, and technique. There is a problem with the utilized technique for that procedure on that animal for that day if it takes more than two individuals to really hold the animal during any process. The more participants there are, the more threatened the animal will feel and the easier it will be for someone to get hurt.
Why Proper Restraint Techniques used for pets?prevents harmrequired for tests and treatmentsA First Aid Kit should be ready for all bites and scrapes for the animal's and handler's comfort.The New York Department of Health must be notified of any animal bites.Dog Restraint & Handling:
Standing restraint
Put the forearm of one arm, while holding the dog's head, under its neck.To bring the animal closer to the handler, the second arm is wrapped around its body.Useful on a table or the floorUse
Exams in generalRetrieval of SpecimensCut NailsSitting Restraint
The same method as the standing restraint, but with the dog sitting
To stop a dog from backing up, it can be against a wall.
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Meaning of biodiversity
Answer:
The variety of life in the world or in a particular habitat or ecosystem
What are these answers?
Answer:
Plasma membrane- outer boundary of the cell
Nucleus- houses DNA/control center of the cell
Ribosome- cellular structure where proteins are made
Cytoplasm- interior of a cell that maintains cells and shape and contains organelles
Mitochondria- power house of the cell
Chloroplast- organelle found only in plant cell (because it is used for photosynthesis)
Flagellum- hair like structure that enables cell movement
a. Create a data table to compare and contrast the physical features of the three skeletons.
b. Put them in order of oldest to most recent. Write down the inferences you made to decide upon the chronological order of these
skeletons in evolutionary history.
c. Provide at least 2 pieces of evidence that support the order you determined for the 3 skeletons.
According to the images, it can be concluded that the organization of the skeletons from the oldest to the most recent is C, A and B, because they show human evolution.
How are skeletons organized and why?The skeletons are organized chronologically from the oldest to the most recent as follows: C, A and B. This organization is due to the fact that some particular characteristics are evident in each of them, such as:
In skeleton C, it is the oldest because it has a tail and its position is quadrupedal, it can be related to the primates from which the human emerged.Skeleton A is the intermediate point between the primate and the human, it maintains a quadrupedal position but more upright and no longer has a tail.Skeleton B is the most recent example of a skeleton because it already walks completely upright and its morphology is the most similar to that of a contemporary human.Learn more about skeletons in: https://brainly.com/question/14446520
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I need help. The class of macromolecule that would most likely be involved in contracting muscles would be ?
plase help and thanks.
Electrons have a small negative charge.
True
False
true
Explanation:
Electrons have a negitive, while protons have a positive change. protons and electrons have the same size, theybare just opposite. hope this helps!
Answer:
True
Explanation:
Electrons negative, Protons Positive.
_____________________and ______________________are primary lymphoid organs while the _____________________and _______________________are secondary lymphoid organs.
Answer:
Primary lymphoid organs: the bone marrow and the thymus
secondary lymphoid organs: adenoids tonsils spleen
how do density and convection current cause movement on earth?
Cyanobacteria have been engineered to produce isobutanol directly. what advantage does this have over other alternative biofuels? a. it is an inherently renewable fuel source. b. multiple processing steps can be avoided. c. they produce chemical energy through photosynthesis. d. they make a biofuel alternative to gasoline. please select the best answer from the choices provided a b c d
Answer:
B
Explanation:
The advantage of cyanobacteria over alternate biofuels is that multiple processing steps can be avoided.
Cyanodiesel, a byproduct of cyanobacteria, has unlimited growth potential and are used in various fields of biotechnology.
Benefits of Cyanobacteria-derived fuels ?⇒ Transform solar energy into chemical energy by the process of photosynthesis
⇒ Fixing of atmospheric nitrogen, helping in the increase of soil fertility
⇒ Widespread applications in pharmaceuticals and agriculture
The advantage of cyanobacteria to produce isobutanol over alternate biofuels is that multiple processing steps required in biofuel production from other sources can be avoided. So option B is correct.
How are cyanobacteria useful in producing isobutanol?Cyanobacteria are recently been engineered to produce a variety of chemicals, such as ethanol, Isobutanol, and Isoprene, directly from solar energy, carbon dioxide, and water. This makes cyanobacterium a potential new cell factory for the production of energy and chemicals to meet global energy and climate change challenges.
Synthetic cyanobacteria are engineered through heterologous biosynthesis to create value-added chemicals through photosynthesis. Several chemicals have been successfully generated in synthetic cyanobacteria.
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The structurelabeled two represents in molecule of ?
Answer:
tRNA
Explanation:
the transfer RNA is an RNA molecule that serves as a link between the mRNA and the growing amino acid chain that forms a protein.
What is the genotype of the dad?
What is the genotype of the mom?
What is the genotype ratio among their children?
What is the phenotype ratio among their children?
Answer:
The genotype of the Dad must be X^AY because that's the only possible genotype for a normal male.
The genotype of the mom must be X^AX^a because that's the only way to have a colorblind son while being a normal mom. The colorblind son gets a Y from his dad and X^a from his mom.
The genotype ratio among the children must be 25% heterozygous dominant, 50% homozygous dominant, and 25% heterozygous recessive.
The phenotype ratio among the children must be 75% normal and 25% colorblind.
who discovered mma disease
Answer:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982627/
Explanation:
a group of primitive cells that have the same number of mitosis all daughter cells that result from mitosis meiosis gametogenesis number of chromosomes the intra cellular environment that provides for both mitosis and meiosis The above meiosis is 1920 single chromosomes knowing that the number of single chromosomes in a gamete is equal to the number of primary cells and one-fourth (1/4) of the total number of cells involved in final mitosis.
Answer:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
Explanation:
The opossum which is native to north america and the kangaroo
Answer:
The opossum, which is native to North America, and the kangaroo, which is native to Australia, are both marsupials.
DNA looks like:
A ball and chain
A chain
A twisted ladder
A ladder
Answer:
DNA looks like a twisted ladder!
Explanation:
It's made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape. Each strand has a backbone made of alternating sugar.
Answer:
DNA looks like a twisted ladder!
Explanation:
It's made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape. Each strand has a backbone made of alternating sugar.
An enzyme and four different molecules are
shown in the diagram below.
Enzyme
The enzyme would
most likely affect
reactions involving
a
A
B C D
Molecules
A molecule A, only
B molecule C, only
C molecules B and D
D molecules A and C
The question is incomplete but I attached the diagram here and it is likely that the enzyme affects reactions involving molecule C.
What is a chemical reaction?A chemical reaction is a process where molecules called reactants are converted into products.
An enzyme is a biological catalyst that shows specificity on one reactant, whereas molecules can be either reactants or products.
Enzymes are proteins that act as biological catalysts by speeding up the velocity of a chemical reaction.
In conclusion, the question is incomplete, but I attached the diagram and it is likely that the enzyme affects reactions involving molecule C..
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I need help with this.
Answer:
A trench would be formed, a ridge would develop, magma would be released and the crust would separate.
Explanation:
Look at the picture and try to identify the process. Once you have identified the process, think of the landforms formed and what processes are involved. The phrase "seafloor spreading" in the question tells us that this is an oceanic divergence process.
When two oceanic plates diverge (move apart), tensional forces are exerted. Fractures may occur (faulting) near the plate boundary. Magma rises at the zone of divergence (a large fracture between the two plates). It solidifies and builds up to form a mid-oceanic ridge, a central ridge dividing the ocean basin. The cooled magma forms a new sea floor between the diverging plates (sea floor spreading).
For your info, I only gave you the explanations for the options chosen and there are actually more landforms and processes that occur in oceanic divergence. If you want the full explanation of the entire process, let me know.
A population contains a lot of diversity in genetic traits.
What condition does this describe?
variation
competition
overproduction
differential reproduction
A scientist is studying an aquarium ecosystem that contains water, plants, and fish that eat those plants. The aquarium has glass walls so light can get in, but it is sealed so no material can move into or out of the tank. When the scientist turned the aquarium's light on, carbon dioxide in the water started decreasing. How is carbon moving and what is happening to the amount of carbon in the living things inside the aquarium? Explain your thinking as completely as possible.
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Carbon moving and what is happening to the amount of carbon in the living things inside the aquarium is by photosynthesis.
What is aquarium?
An aquarium (plural aquariums or aquaria) is a vivarium, usually contained in a clear-sided container (typically constructed of glass or high-strength plastic) in which water-dwelling plants and animals (usually fish).
According to this question, the aquarium contains water, plants and fish. The glass of the aquarium is transparent and allows the passage of light. Plants are unique set of organisms that have the ability to produce their own food (organic molecule) using the energy from light which they absorb via the Chlorophyll pigment in their Chloroplast. This process carried out by plants is called PHOTOSYNTHESIS.
The amount of carbon in form of carbondioxide (CO2) decreases when the light was switched on in the aquarium due to the process of photosynthesis carried out by the plants.
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