Final answer:
The difference between primary and secondary succession is that primary succession occurs on newly formed land with no soil, requiring pioneer species to create soil, while secondary succession occurs on disturbed land with existing soil, allowing for faster recovery.
Explanation:
Ecological succession is the process where a community experiences a sequence of changes with the appearance and disappearance of species over time. The main difference between primary succession and secondary succession lies in the condition of the environment where the succession begins.
Primary succession occurs in areas where no soil exists because it's a newly formed or exposed environment, such as land formed from lava flow or locations where glaciers have retreated. Here, the environment is colonized by pioneer species which can grow in such harsh conditions and gradually create soil by breaking down rock and contributing organic matter as they die off.
In contrast, secondary succession happens in areas that were once home to existing life but were disturbed by events like wildfires or human activities. In these cases, soil is already present, and remnants of the destroyed community provide a basis for new growth. Succession in these situations tends to be faster than primary succession because the soil already contains nutrients needed for plant growth.
Plant leaves _____.
A. are made mostly of dermal tissue
B. contain many parenchyma cells
C. are covered with a waxy cortex
D. absorb water and nutrients
Answer: Option C
Explanation:
The plants are known as the producers that make food by the help of the process known as photosynthesis.
The process of photosynthesis takes place in the leaves and then the food is transported to various parts of the plant body.
Epidermal tissues in the leaves are covered with a waxy cuticle or cortex.It helps in preventing water loss from the leaves.
The guards cells in the leaves are responsible for the opening and closing of stomata which in turn controls the water loss from the leaves.
what makes a molecule a saturated fat?
A molecule is a saturated fat when it consists of carbon chains having only single bonds between carbons, making it fully 'saturated' with hydrogen atoms. These fats have straight chains, can pack tightly together, and are solids at room temperature.
Explanation:A molecule is classified as a saturated fat when it is a type of simple lipid molecule with a carbon chain bonded to the maximum number of hydrogen atoms possible. This means that each carbon atom in the chain is linked to adjacent carbons by single bonds only, without any carbon-to-carbon double bonds (C=C). Saturated fatty acids comprise these simple lipid molecules and contribute to the molecule's straight chain structure, which allows them to pack closely together. Consequently, saturated fats tend to have high melting points and are typically solids at room temperature.
what is the main role of the carbohydrate glucose in a living cell
Answer:
It stores energy.
Explanation:
Carbohydrates are the main source of energy in a Animal cell
write a list of at least five scientific methods
Answer:
A mathematical and experimental technique used in the field of science more specifically for constructing and testing a scientific hypothesis is known as a scientific method. The list of five scientific methods are as follows:
a) Asking a question
b) Developing a hypothesis
c) Examining the hypothesis by performing an experiment
d) Assessment of the data and creating a conclusion
e) Interact and associate the findings or the outcomes with the others.
A sample of an unknown liquid has a volume of 30.0 mL and a mass of 6 g. What is its density? Show your work or explain how you determined this value.
Answer:
Density of liquid having a volume of 30.0 mL and a mass of 6 g is
[tex]0.2 \frac{g}{ml}[/tex]
Explanation:
Density of a substance is given by mass divided by volume
Mathematically it can be represented as
[tex]D = \frac{M}{V}[/tex]
Where D represents the density
M represents the mass and
V represents the volume
Substituting the given values in above equation we get -
[tex]D = \frac{6}{30} \\= 0.2\frac{g}{ml} \\= 200 \frac{Kg}{m^3}[/tex]
Hence, density of liquid having a volume of 30.0 mL and a mass of 6 g is
[tex]0.2 \frac{g}{ml}[/tex]
There are twenty different types of _____________ which join together in differing sequences and numbers to form different proteins. A) fatty acids B) amino acids C) nucleic acids D) monosaccharides
B. Amino acids
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What are the two main ways that minerals are classified?
of glucose produces glycogen, the storage form of sugar ,found in the liver and muscles
Which of these is true of algae, bacteria, and flowering plants? A They are composed of cells. B They all have chlorophyll. C They all feed off other organisms. D They are inorganic.
The option which is true about algae, bacteria, and flowering plants is that they all are composed of cells. Thus, the correct option for this question is A.
What is Bacteria?Bacteria may be defined as single-celled, prokaryotic, and microscopic organisms that lack a well-defined nucleus and other membrane-bound cell organelles. They are most potent to cause numerous diseases in plants and animals.
Except for cyanobacteria, none of the other bacteria have chlorophyll. Some photosynthetic algae have only chlorophyll, while almost all flowering plants possess a chlorophyll pigment.
According to the three premises of the cell theory, all living organisms whether plants or animals are made up of cells because a cell is the only one that is the structural and functional unit of life for each living entity.
Therefore, all algae, bacteria, and flowering plants are composed of cells. Thus, the correct option for this question is A.
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the force of gravity is stronger on earth than it is on the planet mars.If an astronaut travels to mars, what will happen to her mass when she arrives?
The mass would stay the exact same
This is correct because I got it right on my test and mass stays the same wherever it goes.
Which of these is an example of chemical change breaking glass melting ice on windshield burning gasoline denying a bumper
Answer: Option (c) is the correct answer.
Explanation:
It is known that chemical changes are the changes which tend to show difference in chemical composition of a substance.
For example, toxicity, reactivity, combustion etc are all chemical properties.
When gasoline is burning then a chemical change takes place as combustion is taking place.
A chemical change will always lead to the formation of a new compound and this change is irreversible in nature by any physical means.
On the other hand, a change which is unable to bring any difference in chemical composition of a substance is known as a physical change.
For example, change in shape, size, mass, volume etc are all physical properties.
Breaking glass, melting ice on windshield and denying a bumper are all physical changes.
Thus, we can conclude that out of the given options burning gasoline is an example of chemical change.
Answer:
(c) burning gasoline
Explanation:
i took the test
organelles that modify PACKAGES
and transports materials out of a cell
Two groups of snails live close to each other on the coast of Spain. One group lives in cold water on the lower shores. The lower coast and the snails are protected from large changes in temperatures. The other group of snails lives on the upper shores. The upper shore and the snails that live there are exposed to daily changes in temperature. These two groups of snail are examples of
A) how organisms adapt to their environments.
B) how organisms fight each other for survival.
C) why organisms must move to new environments.
D) why organisms die out when temperatures change.
Compare and contrast the cell walls of fungi and plants.
A. Both cell walls provide structural support but fungi is made of polysaccharides and chitin and plants are made of cellulose.
B. Both cell walls provide protection but fungi are made of cellulose and plants are made of polysaccharides and chitin.
C. Fungi cell walls are made of lipids and plant cell walls are made of nucleic acids.
D. Fungi cell walls and plant cell walls have structures called hyphae.
Answer:
A. Both cell walls provide structural support but fungi is made of polysaccharides and chitin and plants are made of cellulose.
How will the increase in the bird population most likely affect the bug population
Which of the following types of rocks are likely to disintegrate by weathering and erosion?
A)Igneous rocks only
B)Metamorphic rocks only
C)Both igneous rocks and metamorphic rocks
D)Neither igneous rocks nor metamorphic rocks
C)Both igneous rocks and metamorphic rocks
Explanation;There are three main types of rocks, namely igneous rocks, metamorphic rocks and sedimentary rocks.Weathering is a process that breaks down rock through mechanical and chemical process. Different rocks have different resistant to weathering. Igneous rocks and metamorphic rocks are likely to disintegrate by weathering and erosion. Sedimentary rocks may be highly resistant to weathering. For example, sandstone which is a sedimentary rock is highly resistant to weathering and erosion.The types of rocks are likely to disintegrate by weathering and erosion are Both igneous rocks and metamorphic rocks.
What is weathering?Weathering can be regarded as the breaking of rock down into smaller pieces, Erosion on the other hand can as well break rock into bits.
Therefore, option C is correct because, Both igneous rocks and metamorphic rocks posses some geological formation that can be affected by weathering and erosion .
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Which statement does not describe a scientific theory A) Can never be proven B) supported by facts C) eventually becomes a fact D) generally accepted explanation
The statement C. "eventually becomes a fact" does not describe a scientific theory. Scientific theories remain theories despite extensive evidence and are open to revision; they don't become 'facts'.
The statement that does not accurately describe a scientific theory is "eventually becomes a fact." It's important to note that a scientific theory is a well-substantiated explanation of aspects of the natural world that has been consistently supported by a large body of evidence and facts obtained from multiple observations and experiments. A scientific theory is generally accepted among scientists due to its robust support, not because it has morphed into a fact over time.
Additionally, scientific theories are designed to be testable and are subjected to rigorous testing and refinement. While a theory may be widely accepted and highly reliable due to extensive evidence, it remains open to scrutiny and revision should new evidence emerge.
What role do glucose and oxygen play in cellular respiration?
In cellular respiration, glucose is used as the primary fuel to produce ATP, while oxygen acts as an essential electron acceptor for efficient ATP production. Without oxygen, much less ATP is produced, demonstrating the necessity of both glucose and oxygen in energy metabolism within cells.
Explanation:Role of Glucose and Oxygen in Cellular RespirationDuring the process of cellular respiration, glucose and oxygen play critical roles. Glucose serves as the primary fuel, with its breakdown releasing the energy necessary for the synthesis of adenosine triphosphate (ATP). Oxygen, meanwhile, is crucial for accepting electrons at the end of the electron transport chain, allowing for the efficient production of ATP. Without oxygen, only a limited amount of ATP can be produced through anaerobic pathways.
The Reactants and Products of Cellular RespirationGlucose enters the body from food intake and is transported by the cardiovascular system from the digestive system to the cells. Oxygen is inhaled into the lungs, diffuses into the bloodstream, and is also carried to the cells. In the presence of oxygen, cellular respiration begins with glycolysis, releasing just two molecules of ATP, and culminates in the mitochondria through the citric acid cycle and the electron transport chain. This leads to the production of the majority of ATP, with carbon dioxide and water as waste products.
Comprehensive Cellular RespirationMost steps of cellular respiration, including the final and most ATP-productive ones, occur within the mitochondria of cells. All organisms that require oxygen perform cellular respiration to convert glucose into the usable energy of ATP. The overall transformation during cellular respiration involves the consumption of glucose and oxygen and the release of carbon dioxide, water, and ATP. As a result, cellular respiration is essential for powering various cellular processes across organ systems, notably involving the digestive, cardiovascular, and respiratory systems.
Final answer:
In cellular respiration, glucose is broken down with the help of oxygen to produce ATP, carbon dioxide, and water. Oxygen's crucial role is to serve as the final electron acceptor in the electron transport chain, allowing for efficient ATP production. Without oxygen, the ATP yield would be greatly reduced.
Explanation:
Glucose and oxygen play crucial roles in the process known as cellular respiration, which is the method by which cells convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. Oxygen acts as the final electron acceptor in the electron transport chain, which is necessary for the production of ATP. Without oxygen, the electron transport chain would not function, significantly reducing the amount of ATP produced by cellular respiration.
In the presence of oxygen, glucose undergoes a series of reactions that result in the production of carbon dioxide and water as waste products, and the most importantly, ATP, which is the main energy currency of the cell. Each molecule of glucose, through the process of cellular respiration, can produce a significant number of ATP molecules, which the cell uses for various energy-requiring functions.
Cellular respiration is a multi-step process starting with glycolysis, continuing through the citric acid cycle, and concluding with oxidative phosphorylation at the electron transport chain. This intricate process involves the digestive, cardiovascular, and respiratory systems, as glucose comes from the food we eat, and the oxygen needed for respiration is obtained from the air we breathe.
All the following is our example of destiny dependent limiting factors except?
A: competition
B: overcrowding
C: hurricanes
D: predators
how does matter move through an ecosystem
Answer:how does matter move through an ecosystem
Explanation:
what is true about the struction of the plasma membrane
where in the human body would you find cells with a large number of mitochondria?
Muscle cells have a high concentration of mitochondria due to their need for a lot of energy to contract.
Explanation:In keeping with our theme of form following function, it is important to point out that muscle cells have a very high concentration of mitochondria because muscle cells need a lot of energy to contract.
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Which idea best describes why the volume of water in Earth's oceans changes?
A)Inside of volcanoes
B)Inside the atmosphere
C)Bonded to meteorites that hit the Earth
D)Bonded to minerals in Earth's mantle
Answer:
B)Inside the atmosphere
which two macromolecules offer energy storage to the cell
which type of energy is provided by carbohydrate macromolecules? Why is this type of energy important for human body function?
what do plants absorb through their roots? That are not NUTRIENTS
How do organisms use different types of carbon compounds
Explain the properties of cohesion and adhesion. Give an example of each property.
Final answer:
Cohesion refers to the attractive force between molecules of the same substance, while adhesion is the interaction between molecules of different substances. Examples include water droplets exhibiting surface tension for cohesion and water adhering to wax paper or moving up a thin tube through capillary action for adhesion.
Explanation:
Cohesion and Adhesion Explained
Cohesion is the force that holds molecules of the same substance together. This property is exemplified by droplets of water forming on a surface, such as wax paper; the water molecules remain together, exhibiting the cohesive force. A notable phenomenon related to cohesion is surface tension, which allows certain insects to walk on water without sinking.
Adhesion is the interaction that occurs between molecules of different substances, leading them to stick together. An example of adhesion is when water droplets adhere to a sheet of wax paper, even when turned upside down, showing the attraction between the water molecules and the paper's surface. The effect of adhesion is clearly seen in capillary action, where water can move up thin tubes or through porous materials, opposing gravity.
Which valuable mineral is often found in the rock called kimberlite?
A.goldB.silverC.diamondD.platinum
Answer:
The correct answer is option C.diamond.
Explanation:
Kimberlite is a type of heavy and fragmented igneous rock that contains the highly valued diamond mineral. Remember that igneous rocks are formed with hot magma that comes from the interior of the Earth and as it ascends to the surface it cools and creates these types of rocks that contain minerals.
Although diamond is one of the minerals that compose it, it is not the most abundant. The most abundant mineral is olivine, and among other of its minerals is also phygopitta mica.
This rock formation can be found in areas with elevated centers of continental platforms.
What do an ogre, an onion and the Earth have in common? They have layers! How many layers does the Earth have?
Answer:
Crust, Mantle, Inner Core, and Outer Core