Answer:
Secondary succession is a process in which a given area is disturbed, being re-colonized by other organisms following this process.
Explanation:
Secondary succession steps:
1- An area suffers a disturbance (e.g., fire, flood, earthquake, etc).
2-The process of disturbance destroys the food chain by removing primary producers (e.g., plants)
3- The vegetation grows back (i.e., first grasses and after higher trees). This process is known as recolonization
The secondary succession can regenerate an ecosystem in less than 50 years after disturbance. The first species re-established during secondary succession are the animals capable of living in disturbed habitats.
Secondary succession refers to the re-grow of species and the establishment of new ones in areas where a perturbation occurred leaving fertile good soil.
---------------------------------
Succession is a term used to refer to colonization and subsequent changes.
Colonization drives the establishment of individuals, populations, species, or bigger groups in areas where they were absent before.
When talking about succession, we refer to changes produced in the composition and structure of communities after a perturbation.
When a perturbation occurs -like fires, floods, earthquakes- and removes part or all of the aerial vegetable life forms, we talk about secondary succession.
In secondary succession, after the perturbation occurrence, the soil remains good and fertile, carrying viable spores, seeds, and roots of surviving species.
With time these species emerge and re-grow, colonizing the area. Also, new species can arrive at the open space, establishing there for the first time.
So, step by step,
1) A perturbation must occur in a community.
2) The perturbation damages or eliminates aerial parts of vegetable species. But the soil, which remains fertile, managed to protect seeds, spores, and roots of the species that used to live in these areas.
3) With time, these species regrow, and new species arrive in the area.
4) A new community emerges.
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Which statement accurately describes the relationship between weight and mass? Mass is an object's weight multiplied by its diameter Mass is an object's weight multiplied by its diameter Mass is an object's weight multiplied by the amount of gravitational force acting on that object Mass is an object's weight multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by its diameter Weight is an object's mass multiplied by its diameter
Answer:
Weight is an object's mass multiplied by the amount of gravitational force acting on that object
State one reason that further testing must be done before rice plants that produce trehalose are approved for human consumption.
Further testing must be done to ascertain that the trehalose produced is okay for human consumption.
What is trehalose?Trehalose is a sugar made up of two glucose molecules. It is also referred to as mycose or trehalose. Some bacteria, fungi, plants, and invertebrates manufacture it as a source of energy and to avoid freezing and dehydration.
Trehalose keeps foods from drying out, starch-containing items from spoiling, and fruits and vegetables from rotting.
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What is the possibility of electron leakage from the electron transport chain? What happens if the Krebs cycle is overstimulated?
Electron leakage during the electron shipping in the mitochondrial membrane (in eukaryotes) or within the cell membrane is an important trouble for the accumulation of the reactive oxygen species (ROS) inside the cytosol.
If the Krebs cycle is overstimulated, too much of the products will be formed and the body will have too much carbon dioxide.
The tricarboxylic acid (TCA) cycle, additionally known as the Krebs or citric acid cycle, is the principle source of energy for cells and an critical part of cardio breathing.
In eukaryotic cells, the citric acid cycle takes place within the matrix of the mitochondrion. In prokaryotic cells, together with bacteria, which lack mitochondria, the citric acid cycle response collection is carried out within the cytosol with the proton gradient for ATP production being throughout the cell's surface (plasma membrane) instead of the inner membrane of the mitochondrion.
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2. How does your breathing contribute to the
carbon cycle?
Answer:
Your oxygen is hooked from trees
Explanation:
:)
Answer:
dxkxxijcjcjvic
Explanation:
xjcicucuxxixiuc
3.
Which two of the following are the waste products of anaerobic
respiration in yeast?
A sugar
B carbon dioxide
C water
D ethanol
The chemical reaction of anaerobic respiration for yeast(Saccharomyces) is
C6H1206---->2C2H6O+2CO2(ethanol and carbon dioxide)
the correct answers are B and D
the tibial division of the sciatic nerve innervates the ______ and the hamstring part of the ______.
The tibial division of the sciatic nerve innervates the posterior compartment of the leg and the hamstring part of the thigh.
1. Posterior Compartment of the Leg: The tibial division of the sciatic nerve provides innervation to the muscles in the posterior compartment of the leg. These muscles include:
-Gastrocnemius: The major calf muscle responsible for plantar flexion of the foot.
-Soleus: Located beneath the gastrocnemius, it also contributes to plantar flexion.
-Tibialis posterior: Located along the posterior aspect of the tibia, it aids in foot inversion and plantar flexion.
-Flexor digitorum longus: This muscle flexes the toes.
2. Hamstring Part of the Thigh: The tibial division of the sciatic nerve also innervates the hamstring muscles, which are located in the posterior part of the thigh. The hamstring muscles include:
-Biceps femoris: Consists of long and short heads and is responsible for knee flexion and hip extension.
-Semitendinosus: Located on the medial side of the posterior thigh, it assists in knee flexion and hip extension.
-Semimembranosus: Positioned deeper than the semitendinosus, it also contributes to knee flexion and hip extension.
The tibial division of the sciatic nerve plays a crucial role in the innervation and function of these muscles, enabling movements and providing sensory feedback in the respective regions.
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why do you think biodiversity is important to an ecosystem
Answer:
Explanation:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
Which do fish have instead of arms and lungs
Is it made of a cell
the digestive system can be thought of as a long tube with how many openings? a.) 1 b.) 3 c.) 2 d.) 4
The digestive system can be thought of as a long tube with 2 major openings that is mouth and anus, which suggests that option C is the right answer.
Digestive system is the organ system in the body which produces enzymes and other juices to digest the food that we take in. These enzymes break the complex particles into smaller ones. The first opening of digestive system comes form the mouth itself while the next opening goes towards the anus. Alimentary canal, mouth, esophagus, stomach, small intestine, large intestine etc. are the main parts of digestive system. Millions of microscopic finger-like projections called villi line the inside of the small intestine.
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The arrows in the image below represent the processes that occur as water goes through phase changes. How is water different after going through any of the four numbered processes? A. There is no change in the water temperature or the motion of the water particles. B. There is a change in both the water temperature and the motion of the water particles. C. There is a only a change in the water temperature. D. There is only a change in the motion of the water particles.
Water is different after going through any of the four numbered processes by there is no change in the water temperature or the motion of the water particles.
What is the water cycle?The water cycle has to do with the movement of water throughout the ecosystem. It is one of the biogeochemical cycles that exists in nature. In the water cycle, water evaporates from the earth surface, condenses and falls as rain.
Hence, the major components of the water cycle are;
Evaporation
Condensation
Precipitation
There is a only a change in the water temperature. There is only a change in the motion of the water particles.There is no change in the water temperature or the motion of the water particles.
Therefore, Water is different after going through any of the four numbered processes by there is no change in the water temperature or the motion of the water particles.
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Suzanne drew a diagram to compare the functions of roots and leaves.
Which characteristic belongs in the area marked Y?
anchors plant
stores food
absorbs minerals
produces glucose
Answer:
(c) Absorb Minerals
Explanation:
Just did it on the exam :) Yw
a like would be nice thanks!!
Answer:
absorb minerals
Explanation:
The field of biology that studies the diversity of organisms and
their evolutionary relationships is called systematics.
Select one:
True
False
.......................................................
Answer:
True.
Explanation:
Hope this helps!
The NADPH produced during the PPP is the reducing power for the synthesis of: Oxaloacetate Pyruvate Fatty acids Glucose Acetaldehyde
The NADPH (nicotinamide adenine dinucleotide phosphate) produced during the Pentose Phosphate Pathway (PPP) serves as a reducing agent and is involved in various metabolic processes. While it is not directly involved in the synthesis of oxaloacetate, pyruvate, acetaldehyde, or glucose, NADPH does play a crucial role in the synthesis of fatty acids.
Fatty acid synthesis occurs in the cytoplasm of cells and requires NADPH as a reducing agent for the conversion of acetyl-CoA to fatty acids. During fatty acid synthesis, acetyl-CoA is carboxylated to form malonyl-CoA, which is then elongated through a series of reactions catalyzed by enzymes called fatty acid synthases. The reduction of these fatty acid intermediates to form fatty acids requires NADPH as a source of reducing power.
To summarize, NADPH produced during the Pentose Phosphate Pathway is primarily used as the reducing power for the synthesis of fatty acids, rather than for the synthesis of oxaloacetate, pyruvate, glucose, or acetaldehyde.
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What causes the plates in Earth's crust to move?
0 Ocean currents
O Solar energy
Convection cells
O Sea floor spreading
All the rocks shown below were formed as high amounts of pressure caused other types of rock to change form. Which type of rock is shown in the image?
Answer:
metamorphic:)
Explanation:
hope this helps let me know if it’s wrong
12 Which does not produce carbon dioxide?
A a muscle fibre
B a sensory neuron
C blood
D saliva
Which of the statements represents a correctly worded hypothesis?
If increasing the temperature of a solvent increases the solubility of solutes in it, then
increasing the temperature of water will allow more sugar to dissolve in it.
The solubility of sugar is directly proportional to the amount of energy that water contains,
so sugar will dissolve faster in water that is warmer.
Substances with bubbles have more motion, so boiling water will dissolve more sugar than
cold water because of the bubbles.
If sugar is a polar substance and solutes can dissolve in solvents that are like themselves,
then adding sugar to water will allow the sugar to dissolve at a faster rate.
Answer:
I believe it is the first one "If increasing the temperature of a solvent increases the solubility of solutes in it, then increasing the temperature of water will allow more sugar to dissolve in it."
Explanation:
Describe the relationship between environmental changes and changes in species?
Answer:
Anything living needs to have certain conditions, if for example a group of flightless birds who are adapted for warm weather had their environment get colder each year and more extreme the surrounding plants and other animals may have a difficult time surviving and this will cause the birds to have less food. The birds also will not be accustomed to these changes and will not be able to adapt their bodies fast enough. This also makes reproduction difficult and in turn further dwindles the population.
which eukaryotic cell-cycle event is missing in binary fission?
Answer:
bacterial cells
Explanation:
In bacterial cells, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. This type of cell division is called binary fission.
What’s the fossil fuels and why are they a problem.?
Answer:
A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion.
Explanation:
the fossil fuels are a problem because: Fossil fuels take a toll on the environment. They cause obvious problems such as oil spills and smog filled air. ... Acid rain, for example, caused partially by sulfur in fossil fuels, damages buildings and harms trees, aquatic life, and insects. Pollution mixes with clouds and forms acid rain.
A RESEARCHER, WHILE ISOLATING AN ENZYME, FINDS AN INCREASE IN THE ACTIVITY OF THE ENZYME, AFTER A SPECIFIC PHASE THE SITUATION. HOW DO YOU THINK YOU CAN EXPLAIN THIS INCREASE OF TOTAL ACTIVITY?
The enzyme of this exercise could have increased its activity after their isolation, due to an increase in the substrate this enzyme acts on. For example, after we eat our food at dinner, the concentration of our bodies' insulin increase, due to a higher concentration of glucose from that aliments provenience from the digestion on our stomachs. This also can cause a positive feedback reaction in our bodies, which means that a little amount of enzyme, can produce more of this molecule, and they are those kinds of metabolic processes which usually are involved in maintaining our bodies' homeostasis.
We can see an example of this in the following picture, where the presence of a substrate, activates the enzyme.
7) When oxygen is available to a cell, the complete breakdown of glucose and the release of energy is called?
a) photosynthesis
d) synthesis
b) aerobic respiration
e) glycolysis
c) lactic acid fermentation
Answer:
B) Aerobic Respiration
Explanation:
1. Which statement is true about light independent reactions?
A.) Direct sunlight, water, and chlorophyll fuel this reaction.
B.) The energy carried by ATP and NADPH fuels this reaction.
C.) Another name for this reaction is photosynthesis
D.) Oxygen, ATP, and NADPH are products of this reaction.
2. Which environmental condition is most likely to result in the highest rates of photosynthesis?
A.) Low light intensity
B.) High concentrations of carbon dioxide
C.) Scarce water
D.) a pH of 4
Answer:
1. B
2. I think number 2 is A?
Explanation:
Correct me if I'm wrong
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The statement which is true about Light-independent reactions is as follows:
The energy carried by ATP and NADPH fuels this reaction.Thus, the correct option for this question is B.
The environmental condition that is most likely to result in the highest rates of photosynthesis is the presence of low light intensity. Thus, the correct option for this question is A. This is because, at high temperatures, the plant increases the rate of transpiration due to which plant cells close their stomata.
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesizes their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The light-independent reactions of photosynthesis occur in the stroma of the chloroplast in the presence of light itself. Rubisco is involved in this type of reaction. The Final product of this reaction is the production of carbohydrates. It also involves the fixation or reduction or assimilation of Carbon dioxide.
Therefore, both the given questions are well-described above.
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HELP PLS
Some traits have multiple alleles (more than 2). What are the phenotypes for each of the four different alleles in the example provided?
Answer:
Although an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles. One allele for every gene in an organism is inherited from each of that organism's parents.
16 The diagram below shows an experiment to investigate a certain physiological process String - Beaker Half filled visking tubing With Concentrated Salt Solution Distilled water a) Account for the observation made at the end of the experiment (4mks)
Answer:
In tube 3, water molecules are moving towards higher concentration i.e., from beaker to tube content, thus the mass increases but in case of tube 4, water is moving out from tube contents to beaker, as the beaker contains more concentrated solution. Thus, the correct answer is 'Water is moving into Tube 3, and water is moving out of Tube 4.'
Solve any question of Excretory Products
Match the following statements with either Adrenal Medulla (Nervous System), Adrenal Cortex (Endocrine System) or Both.
Please help answer all of them if possible!!
Adrenal cortex - hormones secreted are cortisol and aldosterone, stimulated by ACTH from anterior pituitary to release hormones.
What are the functions of cortisol?Your adrenal glands create the glucocorticoid hormone cortisol, which is then released into the body.
Hormones are substances that communicate with your organs, skin, muscles, and other tissues through your blood to coordinate various bodily functions. These messages instruct your body on what to do when.
A particular class of steroid hormone is glucocorticoids. They regulate the metabolism of your muscles, fat, liver, and bones while reducing inflammation in all of your bodily tissues. The sleep-wake cycle is also impacted by glucocorticoids.
Explanation.Adrenal medulla- hormones stimulate fight or flight responses, tissue in middle of adrenal gland, hormones are epinephrine and norepinephrine, hormones respond to stress.
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how is stored energy released for the cell to use
Answer:
Energy is stored in the chemical bonds of the glucose molecules. Once glucose is digested and transported to your cells, a process called cellular respiration releases the stored energy and converts it to energy that your cells can use.
Explanation:
hope this helps you
Answer: Through Cellular Respiration
Explanation:
Cellular respiration takes the stored glucose and makes it into ATP which then the cell can use as energy.
1) Glycolysis: harvests chemical energy by oxidizing glucose to pyruvate.
- occurs in the cytoplasm.
- reactants: one molecule of glucose and two molecules of ATP.
- products: ATP, NAD+ reduced to NADH (electron carrier), and pyruvate.
2) Pyruvate Oxidation: conversion of pyruvate to Acetyl coenzyme A.
- occurs in the mitochondrial matrix.
- reactants: pyruvate and O2.
- products: NAD+ reduced to NADH (electron carrier), Acetyl CoA.
Citric Acid Cycle (Krebs Cycle): completes the energy-yielding oxidation of organic molecules.
- occurs in the mitochondrial matrix.
- Acetyl CoA enters the cycle.
- products: 2 ATP, NADH and FADH produced (electron carriers), and CO2 as waste.
3) Oxidative Phosphorylation: the process by which ATP synthesis is coupled to the movement of electrons through the mitochondrial electron transport chain and the associated consumption of oxygen (chemiosmosis). (sciencedirect.com)
- electron transport chain: O2 final electron acceptor.
- chemiosmosis: the process of diffusion of H+ ions across a selectively permeable membrane through the H+ gradient (proton motive force) and ATP synthase.
- reduced to H2O and 32 ATP formed.
Earth's Water Supply
Task A: Comprehension Questions
1. How can there be water shortages when water covers nearly 75% of the Earth?
2. If we have about the same amount of water now that we had billions of years ago (the supply
has remained about the same), then why is it important not to waste water?
3. If there is currently enough water supply to meet the demand (the total amount everyone needs),
then why are there people in the world that don't have access to the supply?
4. According to the text, "water never sits still." Explain what that means.
Task B: Integrate Information Presented in Words, Visually, and Quantitatively
1. What was the purpose of imagining 100 glasses of water in front of you and what did it help
show?
2. Was the exercise in imagining the 100 glasses of water helpful to you? Why or why not?
Water shortages can occur when water is not in the right place at the right time or when the water supply on Earth is polluted or contaminated and therefore unusable.
What is the Earth's Water Supply?Even though the total supply of water may remain the same, it is important not to waste water because the availability of fresh and clean water in specific locations can change due to factors such as climate change and population growth.
While there may be enough water supply to meet the demand, the water may not be accessible or affordable to certain populations due to factors such as infrastructure, politics, and poverty.
Water is constantly moving and cycling through the Earth's systems, including the atmosphere, oceans, and land, through processes such as evaporation, precipitation, and runoff. This means that water is always changing location and state, and its availability and quality can also change.
Task B: Integrate Information Presented in Words, Visually, and Quantitatively
The purpose of imagining 100 glasses of water was to visually demonstrate the distribution of water on Earth. It showed that even though water covers 75% of the Earth, only a small portion of it is fresh and available for human use.
The exercise of imagining 100 glasses of water can be helpful in understanding the concept of the distribution of water on Earth and the importance of conserving and using it wisely.
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during phagocytosis, the phagolysosome forms before the phagosome forms.
true
false
The statement "During phagocytosis, the phagosome forms first and then fuses with a lysosome to form a phagolysosome" is False, because phagocytosis is a process by which specialized cells called phagocytes engulf and internalize invading microorganisms or cellular debris.
The process involves several steps, including recognition and binding of the target by phagocyte receptors, uptake and internalization of the target into a membrane-bound compartment called the phagosome, and finally fusion of the phagosome with lysosomes to form a phagolysosome.
The phagosome is formed when the target is internalized into the phagocyte through a process called endocytosis. The phagosome then undergoes a series of maturation steps, during which it acquires various enzymes and acidic molecules, such as lysosomal hydrolases and proton pumps, from the lysosome.
These molecules help to degrade the internalized target, killing the invading microorganisms or breaking down cellular debris. The fusion of the phagosome with the lysosome to form a phagolysosome is a critical step in this process because it allows the lysosomal enzymes to reach the internalized target.
In summary, during phagocytosis, the phagosome forms before the phagolysosome forms. The phagosome is formed when the target is internalized into the phagocyte through endocytosis, and it then fuses with lysosomes to form a phagolysosome, which is crucial for degrading the internalized target.
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