PLEASE HELP!!!!!
Which organisms are in a commensalism relationship?
A. a blood tick attaches to a dog
B. two spiders weave webs at two different corners of a garden
C. a bear finds a den that used to belong to another, now-deceased bear
D. an orchid grows on tree bark
Answers
Answer: Commensalism is a type of symbiotic relationship in which one organism benefits from the relationship, while the other organism is neither harmed nor benefited. Some examples of commensalism relationships are:
A. A blood tick attaching to a dog: This is not an example of commensalism, because the tick benefits from the relationship by feeding on the dog's blood, while the dog is harmed by the tick's feeding. This is more accurately described as a parasitic relationship.
B. Two spiders weaving webs at two different corners of a garden: This is not an example of commensalism, because there is no relationship between the two spiders. They are simply occupying different areas of the same habitat.
C. A bear finding a den that used to belong to another, now-deceased bear: This could potentially be an example of commensalism, depending on the circumstances. If the bear benefits from using the den without harming the previous inhabitant or the den itself, then it could be considered commensalism. However, if the bear causes damage to the den or takes over the den and prevents the previous inhabitant from using it, then it would not be considered commensalism.
D. An orchid growing on tree bark: This could potentially be an example of commensalism, depending on the circumstances. If the orchid benefits from growing on the tree bark without harming the tree, then it could be considered commensalism. However, if the orchid causes damage to the tree or takes resources from the tree, then it would not be considered commensalism.
Overall, commensalism relationships involve one organism benefiting from the relationship without causing harm or providing benefit to the other organism.
Related Questions
True/False: Like the lumen of the endoplasmic reticulum (ER), the interior of the nucleus is topologically equivalent to the outside of the cell.
Answers
The interior of the nucleus is not topologically equivalent to the outside of the cell or the lumen of the endoplasmic reticulum (ER) because the nucleus is surrounded by a double membrane known as the nuclear envelope. So the statement is False.
The nucleus is a large organelle in eukaryotic cells that contains genetic material in the form of chromosomes. The nucleus serves as a control center for the cell and directs the synthesis of proteins and cell division. The nucleus is surrounded by a double membrane known as the nuclear envelope. It contains pores that allow substances to move in and out of the nucleus. The nucleus is distinct from the cytoplasm, which is the space outside the nucleus and inside the cell membrane.
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Cells that secrete a lot of substances via active transport need a lot of ___in their cytoplasm.
А)endoplasmic reticulum
B)mitochondria
С)golgi apparatus
D)lysosomes
E)chromosomes
Answers
Answer:
The correct answer is
Explanation:
Lysosomes are used in transportation of cytoplasm.
Hope this helps....
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The cell walls of fungi are made up of polysaccharides including.
Answers
Answer:
including glucan, mannans, and chitin.
Explanation:
Although the exact structure of the fungal cell wall is not fully understood, it consists of a complex mixture of proteins and polysaccharides
hope this helps :))
The most important system in the body.
Answers
The human body is a complex and interconnected system, with various organs and systems working together to maintain overall health and function. However, if we consider the system that is vital for sustaining life, the cardiovascular system stands out as one of the most crucial.
What does Cardiovascular System do?
The cardiovascular system, comprising the heart, blood vessels, and blood, is responsible for the transportation of oxygen, nutrients, hormones, and immune cells throughout the body. The heart pumps oxygenated blood to all the organs and tissues, ensuring their proper functioning.
The blood vessels, including arteries, veins, and capillaries, facilitate the exchange of gases, nutrients, and waste products. The blood carries oxygen from the lungs, nutrients from the digestive system, and removes waste products from various metabolic processes.
Without a properly functioning cardiovascular system, the body’s cells would be deprived of oxygen and nutrients, leading to organ failure and death. Thus, while all systems are essential for optimal health, the cardiovascular system’s role in sustaining life makes it of utmost importance.
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the cone-shaped region of the cell body where the axon originates and where action potentials are generated is known as?
Answers
The cone-shaped region of the cell body where the axon originates and where action potentials are generated is known as the axon hillock.
The axon hillock is a specialized region of a neuron that plays a critical role in the initiation of action potentials, which are electrical signals that propagate along the axon to transmit information between neurons. It serves as the junction between the cell body and the axon and contains a high density of voltage-gated ion channels, which are responsible for generating and propagating action potentials.
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QUICK, IF ANYONE CAN ANSWER CORRECTLY AND TRUTHFULLY I WILL GIVE 100 POINTS!
Q. My dad's fields aren't producing as many crops as they used to. Mark all the ones below that he could do to help the soybeans and alfalfa (to make hay) grow better.
A.Add more Nitrogen in the air around the plants.
B.Add more Nitrogen as a part of fertilizer.
C.Add nitrogen-fixing bacteria.
D.Add more rocks to the land.
Answers
Answer:
B, and C.
Explanation:
The two major categories of transport are ___ and ___
Answers
Answer:
direct and indirect active transport
Explanation:
With. +. Without. Energy
What function does the inverted capillary tube perform.
Answers
Answer:
reservoir to trap the compound's vapors.
Explanation:
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Identify the process that occurs in this organelle, and explain the importance of this process to the survival
of organisms.
Answers
Answer:
Explanation:
its c
Identification of an organism does not require a pure culture because Bergey’s Manual will sort out the contaminant.
Identification of an organism does not require a pure culture because Bergey’s Manual will sort out the contaminant.
True
False
Answers
The statement "Identification of an organism does not require a pure culture because Bergey's Manual will sort out the contaminant" is false. Obtaining a pure culture is essential for the accurate identification of an organism, and relying solely on Bergey's Manual to distinguish contaminants is not sufficient.
Identification of an organism generally requires a pure culture to ensure accurate and reliable results. A pure culture consists of a single species of microorganisms, which is crucial for proper identification. Using mixed or contaminated cultures can lead to misidentification or inconclusive results. Bergey's Manual is a comprehensive guide that classifies and describes bacteria based on their characteristics, such as morphology, biochemical tests, and molecular biology techniques.
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pls help! Diploid: somatic cell :: Haploid:
Answers
claim why is methodical thinking critical to engineers
Answers
Methodical thinking is critical to engineers because the ability to think critically is essential for engineering students and future engineers. This is due to the demands of their work, which include accuracy and fidelity, clarity in action, practical thought, decision-making, attentiveness, and systematization.
By completing a task systematically, methodical thinking helps engineers avoid accidents and perform tasks without making mistakes.
Engineers must have a methodical approach to problem-solving if they are to implement processes that will be repeated repeatedly. They must also follow each step carefully to prevent accidents or forgetting a crucial step in the creation of a material, the construction of an object, etc.
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Which type of general sense receptor detects pressure changes in walls of blood vessels and in portions of the digestive, reproductive and urinary tracts
Answers
The type of general sense receptor that detects pressure changes in the walls of blood vessels and in portions of the digestive, reproductive, and urinary tracts is known as a mechanoreceptors.
Mechanoreceptors are specialized sensory receptors that respond to mechanical stimuli such as pressure, vibration, or stretch. In the context of blood vessels, mechanoreceptors known as baroreceptors sense changes in blood pressure and help regulate cardiovascular function.
In the digestive, reproductive, and urinary tracts, mechanoreceptors play a role in detecting distension or stretching of the organ walls, providing sensory information about the state and pressure within these organs. These mechanoreceptors relay signals to the central nervous system, contributing to the perception of sensations and the regulation of various physiological processes in the body.
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The complete question is:
Which type of general sense receptor detects pressure changes in walls of blood vessels and in portions of the digestive, reproductive and urinary tracts?
The basic components of a quality assurance program include all of the following, EXCEPT ________.
A. reviewing all clinical and administrative services and procedures
B. establishing a quality assurance committee
C. limiting the number of issues
D. establishing a base rate of pay for new hires
Answers
The answer is D. Establishing a base rate of pay for new hires is not a basic component of a quality assurance program. The other options are all important components, such as reviewing all clinical and administrative services and procedures, establishing a quality assurance committee, and limiting the number of issues.
Establishing a base rate of pay for new hires. The basic components of a quality assurance program include reviewing all clinical and administrative services and procedures (A), establishing a quality assurance committee (B), and limiting the number of issues (C). Establishing a base rate of pay for new hires (D) is not a component of a quality assurance program, as it is related to human resources and compensation rather than ensuring the quality of services and procedures.
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Respiration uses the _________________ you eat and the _________________ you breathe to make _______________, ______________________________, and ___________________________.
Answers
Respiration uses the energy from food that you eat and the oxygen from the air you breathe to make energy rich compounds and provide energy to do tasks.
All living cells engage in respiration, a chemical process that releases energy from glucose. With oxygen present, aerobic respiration produces more energy but does so more gradually. We get our energy from the stuff we eat. Our bodies break down the food we eat by combining it in the stomach with fluids (acids and enzymes). The carbohydrate (sugars and starches) in food is broken down into another type of sugar, called glucose, during digestion in the stomach.
Carbohydrates, lipids, and proteins are the three main categories of fuel molecules that provide energy to humans. These molecules' kinetic, thermal, and other chemical forms are created from their potential chemical energy.
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Why are crops genetically modified?
A. To decrease price
B. To resist pesticide
C. To make them toxic for humans
Answers
Crops are genetically modified in other to resist pesticides, hence option B is the correct answer.
What is Pesticide?Pesticides are compounds used to control pests. Herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide are all examples of pesticides.
Furthermore, insecticides are poisonous to insects and other arthropods. Miticides (also known as acaricides) are chemicals that kill mites that feed on plants and animals. Microorganisms that kill, suppress or out-compete pests such as insects or other microorganism pests are referred to as microbial pesticides.
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if a population satisfies the hardy-weinberg equilibrium model, what can you assume about that population? a. allele and genotype frequencies are stable b. gene flow is occuring c. it is relatively small d. evolution is occuring
Answers
Answer: A) allele and genotype frequencies are stable
Explanation: The Hardy-Weinberg Equilibrium model states that the genetic variation within a population will remain at about the same levels across generations. Therefore, you could assume that the allele and genotype frequencies (genetic variation) are stable in a population that is in Hardy-Weinberg equilibrium.
Some flowering plants have a long pistil that reaches way above the lower petals. What’s the purpose of this structure?
Answers
A tall pistil that extends well over the lower petals is present in some blooming plants. to safeguard the growing plant embryos. in order to supply food for the growing plant embryos. I hope this was helpful.
What role does the pistil play in flowering plants?Reproduction is the pistil's primary purpose. Let's talk about how crucial the pistil's function is to the flower: 1) Because it is the flower's female reproductive system, it contributes to fertilization. 2) The pistil's stigma is where the pollen is deposited.
What's the make-up of a flower's pistil?pistil, a flower's female sexual organ. The prominently located pistil will typically consist of a swollen base called the ovary, which houses the prospective seeds in or ovules; the stalk dubbed the style that emerges from the ovulation; and a stigma with a variety of shapes and is frequently sticky.
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Where in the cell would you expect to find the greatest activity of the pyruvate dehydrogenase complex?
Answers
Answer:
Mithochondria
Explanation:
In eukaryotes, the pyruvate dehydrogenase complex, like the enzymes for citric acid cycle and oxidation of fatty acids, is located in the mitochondrion, where is associated with the surface of the inner membrane facing the matrix.
In the cell, mitochondria are the place where it expects to find the greatest activity of the pyruvate dehydrogenase complex.
What is the pyruvate dehydrogenase complex?The three-enzyme complex known as the pyruvate dehydrogenase complex (PDC) is responsible for pyruvate carbonylation, which converts pyruvate to acetyl-CoA.
This complex connects the glycolysis metabolic pathway to the citric acid cycle by allowing acetyl-CoA to be used to perform cellular respiration.
The enzyme pyruvate dehydrogenase catalyzes the reaction between pyruvate and a lipoamide, which yields acetylated dihydrolipoamide and carbon dioxide. The process requires the coenzyme thiamine pyrophosphate.
Therefore, the site where you find the greatest activity of the pyruvate dehydrogenase complex is mitochondria.
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Which of the following statements is true of the cell membrane?
1. it controls what molecules enter and exit the cell
II. it contains protein channels that help move molecules in and out
III. it surrounds all plant cells
o I only
o ll only
o III only
ol & ll only
o I & III only
O I, II, & III
Next
1 2 3 4 5 6 7 8 9 10
Answers
Answer:
1, 2, & 3
Explanation:
The cell membrane controls what enters and exits the cell and thus protects the cell.
Water molecules and ions move through channel proteins. Other ions or molecules are also carried across the cell membrane by carrier proteins.
Cell membranes surround all animal, plant, and bacterial cells.
which of the following is a slow moving nutrient
A. oxygen
B. phosphorus
C. hydrogen
Answers
Answer:
B
Explanation:
Slow moving nutrients include Nitrogen and Phosphorus.
Answer:
B. phosphorus
Explanation: Phosphorus moves slowly from deposits on land and in sediments, to living organisms, and then much more slowly back into the soil and water sediment. Phosphorus cycle is the slowest of all nutrient cycles.
migration is required for genetic drift to occur. higher rates of migration will increase genetic drift. True or False
Answers
Migration that increase genetic variation would be genetic flow . Genetic drift is a random event.
A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than
the native predators of rabbits
Which statement describes what will most likely occur in the rabbit population due to the introduction of
the predator?
A)
The rabbits will mutate their genes and express genes that increase their speed
Slower rabbits will develop stronger legs and pass this trait to their offspring
C)
Rabbits will mate and produce offspring with a different species that has faster runners.
D)
Faster rabbits will survive and reproduce increasing the average speed of the rabbit population
Answers
Answer: D
Explanation: fast rabbits will survive to reproduce!
In canadian islands, shrews have been documented to travel across frozen lakes and establish populations on previously uninhabited islands. this is an example of a) genetic drift. b) population bottleneck. c) divergent evolution. d) coevolution. e) founder effect.
Answers
The establishment of settling previously uninhabited islands and traversing icy lakes is a Founder effect.
What is Founder effect?In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is founded by a very small number of individuals from a larger population. It was first thoroughly reviewed by Ernst Meyer in 1942. As a result of the loss of genetic variation, new populations can differ significantly both genotypically and phenotypically from the parental population from which they were derived. In extreme cases, founder effects are thought to lead to speciation and subsequent evolution of new species.
The founder effect occurs when a small group of migrants (not genetically representative of the population they came from) settles in a new area. In addition to the founder effect, New populations are often very small, exhibiting increased susceptibility to genetic drift, increased inbreeding, and relatively small genetic variation.
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Select ALL of the following physical adaptations that plants found in
a desert biome have developed to survive in this type of biome?
large, broad leaves where water is evaporated quickly into the air
thick, waxy skin to hold in water
a shallow root system to soak up water quickly before it's evaporated
no leaves or have spines to prevent water loss
Answers
Answer:
b) thick, waxy skin to hold in water
c) a shallow root system to soak up water quickly before it's evaporated
d) no leaves or have spines to prevent water loss
Those three answers should all be right.
how do feedback mechanisms help us predict future natural phenomenas
Answers
Answer:
Positive feedback loops enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
Explanation:
Please help! the hardy-weinberg equation is an expression showing the frequencies of 100 percent of the alleles for a specific gene in a population. which statement must be true if biologists show that both p and q are not changing over a period of time?
A. predators are killing individuals with certain traits.
B. mutations are occurring in the population.
C. there is no migration in the population.
D.the population is very small.
Answers
C. There is no migration in the population.
The Hardy-Weinberg equation assumes that certain conditions are met for a population to be in genetic equilibrium, one of which is the absence of migration. Migration can introduce new alleles into a population or remove existing alleles, which would disrupt the equilibrium and cause changes in allele frequencies (p and q). Therefore, if p and q are not changing, it suggests that there is no migration occurring in the population.
producers and microorganisms are able to use sulfur easiest if it is in what form? question 4 options: sulfide sulfhydryl group hydrogen sulfide sulfate
Answers
Producers and microorganisms are able to use sulfur the easiest if it is in sulfate form.
Producers, microbes, and sulfateProducers and microorganisms are able to use sulfur the easiest if it is in the form of sulfate. Sulfate is a stable and readily available form of sulfur in many environments.
Producers, such as plants, and various microorganisms have the ability to take up sulfate and utilize it in metabolic processes. Sulfate can be converted into organic compounds containing sulfur through enzymatic reactions within these organisms.
While other forms of sulfur like sulfide, sulfhydryl groups, and hydrogen sulfide may also be utilized by specific microorganisms in different contexts, sulfate is generally the most easily accessible and commonly utilized form of sulfur in biological systems.
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Secondary sewage treatment is distinguished form primary sewage treatment by the: separation of the suspended solids from the liquid effluent. chlorination of the liquid effluent. aeration of liquid effluent following chlorination. removal of inorganic nutrients from the liquid effluent. addition of bacteria to process organic contaminants.
Answers
Secondary sewage treatment is distinguished from primary sewage treatment by the following:
Aeration of liquid effluent following chlorination.
Addition of bacteria to process organic contaminants.
Removal of inorganic nutrients from the liquid effluent.
Primary sewage treatment is the initial step in the treatment of waste water, and it typically includes the separation of the suspended solids from the liquid effluent. This can be achieved through sedimentation, mechanical screens, and other physical means to remove the larger particles from the waste water.
Secondary sewage treatment goes one step further by using biological processes to remove dissolved organic matter and inorganic nutrients from the liquid effluent. This is typically done through the use of microorganisms, which break down the organic matter in the waste water. Aeration is used to provide the microorganisms with oxygen, which is necessary for their growth and metabolism.
Chlorination can be used as a final disinfectant step following secondary sewage treatment to kill any remaining pathogens, but it is not a requirement of secondary treatment.
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how is the hammer structure related to its function
Answers
Answer:
hope it helps you..
Explanation:
Structure to Function Relationship:
The length of the handle allows for a swing that increases the speed of the head of the hammer. The head is composed of hard metal. When the head hits the nail, the metal transmits the force of the swinging hammer into the nail, driving it into the wood .