Ans.
Homeostasis can be defined as the state of constant, steady internal conditions maintained by living organisms. One way to maintain homeostasis by animals is by eliminating waste products from the cells.
By doing this, cells excrete harmful toxins to outside through its cell membrane. Cell organelles that help in digestion of waste material in cells are lysosomes.
Thus, the correct answer is option). 'by eliminating waste through the cell membrane.'
Fungi are different from plants because _____.
Nerve impulse describes:
a.an action potential crossing the synaptic cleft.
b.input at the dendrites of a cell.
c.the movement of an action potential along the axon.
d.an action potential along the combined axons, which are called nerves.
Final answer:
A nerve impulse is the movement of an action potential along the axon of a neuron, which occurs due to changes in electrical charge facilitated by sodium and potassium ions across the cell membrane.
Explanation:
A nerve impulse describes the movement of an action potential along the cell membrane of a neuron. When a neuron receives a chemical stimulus, it triggers a change in the permeability of the neuron's cell membrane to sodium (Na+) and potassium (K+) ions. This change in permeability starts an action potential at one location. The action potential then travels down the neuron, passing along the cell membrane to the axon terminal. This process involves a rapid change in electrical potential across the membrane, where sodium ions flow into the cell, causing the inside to become positively charged relative to the outside. Subsequently, potassium ions flow out, and the charge is reversed again. The nerve impulse moves as a wave of electrical charge along the outside and inside of the membrane.
The correct answer is c. the movement of an action potential along the axon. Option a is incorrect as it denotes the crossing of the synaptic cleft, which occurs after the nerve impulse has traveled down the axon. Option b refers to the input at the dendrites, which is the receiving end of a nerve impulse and not the impulse itself. Lastly, option d describes an action potential along nerves, which are bundles of axons, and though it involves an action potential, it does not precisely define a single impulse along the axon membrane.
How does DNA fold into a chromosome. What are the 6 steps
DNA condenses into a chromosome during cell division through a series of steps, including unwinding, helicase opening, stabilization by binding proteins, wrapping around histone proteins, coiling into chromatin fibers, and ultimately forming the condensed chromosome with sister chromatids.
Steps of DNA Condensing into a Chromosome
During the process of cell division, DNA condenses into the familiar X-shaped structure known as a chromosome. This process involves several key steps:
DNA unwinds at the origin of replication.
Helicase opens up the DNA to form replication forks, initiating the replication process.
Single-strand binding proteins stabilize the DNA strands to prevent them from reannealing.
After replication, double-stranded DNA wraps around histone proteins to form nucleosomes, appearing as "beads on a string."
The nucleosomes coil into a 30-nm chromatin fiber, further compacting the DNA.
During mitosis, the chromatin fibers condense even more, resulting in the fully formed X-shaped chromosome structure, which consists of two identical sister chromatids held together at the centromere.
It's important to note that chromosomes only take on this highly condensed form during cell division. In the interphase of the cell cycle, the DNA decondenses, allowing for gene expression and DNA replication.
Over the past two centuries, how has the growth of human population changed
Each of 500 soldiers in an army company independently has a certain disease with probability 1/103. this disease will show up in a blood test, and to facilitate matters, blood samples from all 500 soldiers are pooled and tested. (a) what is the (approximate) probability that the blood test will be positive (that is, at least one person has the disease)
Why does it take a long time to develop a new variety of tomato
Animals and plants need to maintain homeostasis to function properly. True False
Do changes that cannot be easily reversed, such as burning, observe the law of conservation of mass? Explain.
The image shows an ant that has been infected by a fungus, with the sporangium of the fungus emerging from the ant’s head. What type of nutrition is the fungus in the image demonstrating? parasitic autotrophic saprophytic
A client who had an above-the-knee amputation (aka) has a pressure dressing on the end of the residual limb. the client asks, "why do i have to have this tight dressing on my leg?" which answer by the nurse is correct?
Final answer:
A pressure dressing after an above-the-knee amputation controls swelling, promotes healing, and prepares the limb for a prosthetic, while also preventing bleeding. Infected tissue removal stops infection spread and allows healthy tissue regeneration. Monitoring for redness, swelling, and pain post-surgery is crucial for detecting complications.
Explanation:
The client who has undergone an above-the-knee amputation is required to have a pressure dressing on the end of their residual limb for several reasons. Firstly, the dressing helps to control swelling and promote proper healing of the surgical site. Additionally, it provides a uniform compression to help shape the residual limb for a prosthetic fitting in the future. The pressure also minimizes the risk of post-operative bleeding and hematoma formation.
Regarding the clinical scenarios presented, the removal of infected tissue helps to stem the infection because it removes the source of bacteria and dead or compromised tissue that could be harboring the infection. This can prevent the spread of bacteria and allow for new, healthy tissue growth. Post-surgery, it is important to monitor for increased redness, swelling, and pain, as these may be signs of possible infection or complications. Skin grafting and physical therapy are significant next steps in the recovery process after significant loss of skin and muscle mass. These treatments aid in restoring as much function as possible.
what is the name of the process of liquid water changing into water vapor due to heating? A. respiration B. evaporation C. photosynthesis D. precipitation
Under what kingdom would an organism with the following characteristics be classified? Is multicellular has cells without cell walls is hetrotrophic
What happens during radioactive decay, and what is the result at the end of radioactive decay
Answer:
Radioactive decay is the process in which the nucleus of an unstable isotope spontaneously changes, releasing particles and energy. An unstable isotope will continue to decay until it reaches the stable form of either a different isotope of the same element that is stable or a different element that is stable.
Explanation:
Its on Edge 2020
transition metals are A. good conductors of thermal energy B. more reactive than alkali metals C. not good conductors of electric current D. used to make aluminum
Transition metals are good conductors of both thermal and electrical energy due to their free electrons, making option A the correct answer. They are also less reactive than alkali metals and do not make aluminum but are instead different elements used in various applications.
Explanation:Transition metals are good conductors of thermal energy and electrical current. This property is because they have many free electrons that can transport thermal energy and electrical charge efficiently. Among the available options, choice A is correct since it states that transition metals are good conductors of thermal energy. Transition metals are indeed used in a variety of applications including cooking utensils, which require good thermal conductivity. They are also used in electrical conducting wires due to their excellent electrical conductivity.
Comparatively, transition metals are not more reactive than alkali metals, which is option B and is incorrect. Alkali metals are among the most reactive elements in the periodic table. Transition metals do not make aluminum; instead, they are distinct elements such as iron, copper, nickel, and many more, which are used in various alloys for their desirable properties.
What would happen to the movement of vesicles toward their eventual target if a microtubule inhibitor like colchicine were added to the cells?
In what way(s) are mycelia and fruiting bodies similar?
a. both grow below ground.
b. both produce spores.
c. both are composed of hyphae.
The nurse is developing a teaching plan for a patient with rheumatic disease who is being prescribed salicylate therapy to monitor herself for what
What kind of interaction do you think the prairie dogs have with the rattlesnakes?
Answer: prey predator
The interaction the prairie dogs have with rattlesnake is prey predator interaction.
In a Food chain the prairie dog is primary consumer that feeds on the producers or plants and rattle snakes are secondary consumers that feed on prairie dogs. Hence the prairie dog is prey and rattlesnake is predator which preys on prairie dog.
Chimpanzees belong to the animal kingdom, and mushrooms belong to the fungus kingdom. What do they have in common?
Both are heterotrophs.
Both are prokaryotes.
Both are autotrophs.
Both are unicellular.
Heterotrophs are organisms that cannot produce their own food, relying on other sources. They can be chemoheterotroph which are heterotrophs that use chemical energy as energy source or photohetrotroph which are those that uses light. They are secondary and tertiary consumers. Most types of living organisms, including all animals and fungi, are heterotrophic.
Answer:
Both are heterotrophs.
Explanation:
I took the test and got it right. Have a great day
The bacteria species known as Escherichia coli is capable of using oxygen to produce energy in a process known as respiration. It can also produce energy if no oxygen is available by using a process called fermentation. This ability is a response to abiotic conditions allows
A: this bacteria to live to live anywhere on earth
B: the bacteria cells to attack host cells
C: the bacteria cells to maintain homeostasis
D: developed cells to eproduce and produce offspring
Answer:
Option C is the correct answer the bacteria cells to maintain homeostasis
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
Based on the chart, how are insects and dogs related?
Cats and dogs are considered part of the same group at the Order level, which is Carnivora, with differences emerging at the Family level.
Explanation:In the hierarchical taxonomic classification system, cats and dogs are considered to be part of the same group starting at the Order level, specifically the Order Carnivora. This group is characterized by organisms that have a diet primarily of meat, though not all members are strict carnivores.
Within the Order Carnivora, cats and dogs are further they are subdivided into the different Families, with cats are belonging to the Family Felidae and dogs to the Family Canidae, highlighting their differences at the more specific taxonomic levels.
Insects and dogs belong to the same kingdom (Animalia) but different phyla. Dogs belong to the phylum Chordata, while insects belong to the phylum Arthropoda.
Insects and dogs share a common ancestor, but they are quite distant relatives.
Kingdom: Both insects and dogs belong to the Kingdom Animalia, meaning they are both animals.
Phylum: This is where they diverge. Insects belong to the Phylum Arthropoda, which includes animals with exoskeletons and jointed legs. Dogs, on the other hand, belong to the Phylum Chordata, which includes animals with backbones.
So, while they both belong to the broad category of animals, they branched off into entirely different paths of evolution a long time ago. This is why they have such different physical characteristics and adaptations.
How many square feet of outdoor carpet will we need for this hole? Iready quiz pic
uaggas once lived in South Africa. They are now extinct. People hunted them for their hides and meat. Quaggas fed on grass, which people also used to feed their sheep and goats.
Based on these facts, what is the LEAST LIKELY reason the quaggas became extinct?
Answer:
Temperature change
Explanation:
how does dna in cells determine an organisms complex traits?
What kind of cleavage do humans (and other vertebrates) have?
The organism shown in figure 21-2 is an example of
A. A flagellate
B. A ciliate
C. An amoeba
D. A spore-forming protist
Answer:
Flagellate
Explanation:
Why do scientists use indirect methods to study the ocean floor? answer?
What do you think would be the most frustrating or difficult part of dna analyst?
What is a "missing link" in the fossil record? A.) a fossil that shows a vestigial structure B.) a transitional fossil that shows how two species are connected C.) a fossil that is physically impossible and cannot exist D.) a fossil that contradicts the theory of evolution
You are a biomedical researcher who is interested in designing a drug to increase bone density. You have decided you can take one of two approaches: (1) design a drug that stimulates bone to be built faster, or (2) design a drug that prevents bone from breaking down. To begin this process, you need to study the cells that would likely respond to either drug 1 or drug 2. Which cells are these?
Answer:
Bone tissue consists of some metabolically active cells which are responsible for bone remodeling which include the formation of new bone cells and degradation of old bone cells.
The most important cells in bone remodeling are osteoclast and osteoblast cells. Osteoblast cells play important role in the formation of new bone cells by releasing an osteoid matrix that contains proteins and minerals.
Osteoclast cells have opposite role than osteoblast cell because they release the calcium and minerals from old cell in the blood and cause bone mineralization.
Therefore for the first approach, we need to study the osteoblast cell because it helps to build the bone and for the second approach we need to study the osteoclast cell that would likely respond to drug 2 as it is responsible for the breakdown of bones.