Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
2 Castwat A farmer decided to have his best meat-producing bull cloned. The following steps were used in the process: 4 . ● . . 2.2.1 2.2.2 2.2.3 2.2.4 11/05 poz The nucleus from the muscle cell was placed in the empty ovum. The ovum was given an electric shock to stimulate normal cell division to produce an embryo. The embryo was placed in the uterus of a surrogate cow where it developed into the clone. What is cloning? Explain why the nucleus of a muscle cell was used and not the nucleus of a sperm cell. Explain why the nucleus of the ovum was removed. State ONE benefit of cloning. A muscle cell was taken from the bull and the nucleus was removed. An ovum was taken from a cow and the nucleus was removed and discarded.
Cloning is the process of creating an exact genetic copy of an organism. In the case of the farmer who wanted to clone his best meat-producing bull, the process involved removing the nucleus from a muscle cell of the bull and placing it in an empty ovum.
An electric shock was given to the ovum to stimulate normal cell division, resulting in the production of an embryo. The embryo was then placed in the uterus of a surrogate cow, where it developed into the clone. The nucleus of a muscle cell was used instead of a sperm cell because the genetic material in a muscle cell is complete, containing all the necessary DNA to create a full organism. Sperm cells, on the other hand, only carry half the genetic material needed to create an organism. Therefore, using a muscle cell ensures that the clone will have the same genetic makeup as the original bull. The nucleus of the ovum was removed to make space for the nucleus of the muscle cell. This is necessary because an ovum contains its own nucleus, which would result in a mixture of genetic material if left intact. By removing the nucleus of the ovum, the nucleus of the muscle cell can be inserted and create a genetically identical clone. One benefit of cloning is the ability to replicate desirable traits in animals, such as high meat production or disease resistance. Cloning can also be used to preserve endangered species and potentially bring back extinct species. However, there are also ethical concerns and potential risks associated with cloning, including health problems in the cloned animal and a lack of genetic diversity.
for more questions on genetic
https://brainly.com/question/12111570
#SPJ11
Which of the following limits a population's growth? Group of answer choices all of the above natural disasters carrying capacity of its habitat severe weather
Answer:
It I understand the question right it would be all of the above for the answers
Explanation:
Natural disasters and severe weather can have negative impacts on populations limiting their growth
Show a Punnett square for a cross that allows F1 to self-pollinate (Hint: a cross between the offspring).
From this cross of individuals that are heterozygous for a particular trait, the expected genotypic ratio of the F1 generation would be 1 AA: 2 Aa: 1 aa. The expected phenotypic ratio would be 3 individuals with the dominant trait (A_) to 1 individual with the recessive trait (aa).
What is the Punnett square for the self-pollination of F1?Consider a cross between two individuals that are heterozygous for a particular trait.
Let A represent the dominant allele and a represent the recessive allele.
The genotypes of the parent generation (P generation) are Aa × Aa.
Punnett square for this cross:
| A | a |
-------|------|------|
A | AA | Aa |
-------|------|------|
a | Aa | aa |
-------|------|------|
The Punnett square shows the possible combinations of alleles from the parent generation and predicts the genotypes and phenotypes of the offspring in the F1 generation.
Learn more about Punnett square at: https://brainly.com/question/3522181
#SPJ1
1. How does calcium ion concentration in blood affect muscle contraction? Does it lead to tetany in certain cases? How will you correlate fluctuation in blood calcium with tetany?
Calcium ion concentration in the blood affects muscle contraction because actin and myosin filaments return to their initial places as calcium ions leave the muscle cells, causing the muscle to relax.
The muscle relaxes as calcium ions leave the muscle cells, causing the actin and myosin filaments to return to their initial positions. In other words, a lower calcium level in muscles is indicated by a larger level of calcium ions in the blood. Muscle contraction will suffer as a result of this.
Muscle contraction results from the thin and thick filaments sliding apart from one another when Ca2+ is present in the cytosol. Similar to this, as the Ca2+ level drops, the binding sites are covered, causing contraction to cease.
Low calcium levels in bodily fluids due to impaired parathyroid gland function occur in cases of tetany. Periodic, excruciating muscle spasms (wild contractions) and trembling are symptoms of tetany.
To learn more about Calcium ion visit: https://brainly.com/question/13650164
#SPJ9
How are galaxies classified? (1 point)
O by their shape
O by their location within the universe
O by their size
Oby the age of their stars
Which of the following is a true statement about the non-specific immune system?•it includes lymphocytes and plasma cells. •it responds faster with each encounter of a pathogen•it is something that is acquired over time• none of these
Non-specific immune system is considered as our first line of defense in response to a certain infection. It is referred to as innate or inborn immune response, It includes the skin, mucous membranes, antimicrobial chemicals, natural killer cells, phagocytosis, inflammation, and fever. These are our body's reactions when we are exposed to germs and foreign subtances. These defenses acts very quickly upon an encounter or exposure to a certain pathogen. It means that the pathogen that entered the different body openings is being detected at once and destroyed on the spot.
Immunity that includes lymphocytes and plasma cells is not part of the innate immunity. It is not acquired over time because it is already present since we were born.
Answer - •it responds faster with each encounter of a pathogen
Help! ASAP, this is due tomorrow and I’m struggling as this isn’t what they taught us. The question is: Explain why the bacteria shown (E. coli) have a second membrane outside the
peptidoglycan.
The second membrane protects e.coli (Gram-negative bacteria) against a harsh environment.
The outer membrane indirectly helps stabilize the inner membrane as peptidoglycan layer in Gram-negative bacteria is relatively thin than gram positive bacteria ( they have multilayer pepdtidoglycan )
The second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
What is an outer membrane?A double membrane is present in gram-negative bacteria, and it provides both protection and nutrition for survival.
The outer of these membranes is known as the outer membrane (OM), and it comprises a variety of completely integrated membrane proteins that carry out a number of crucial cellular processes, including nutrition absorption, cell adhesion, cell signaling, and waste export.
Several of these outer membrane proteins (OMPs) for pathogenic strains also function as virulence factors for nutrition scavenging and evading host defense systems. OMPs are distinct from other membrane proteins in that they have a -barrel fold and can vary in size from 8 to 26 strands while still carrying out a wide range of cellular activities.
Although these OMPs play crucial roles in cell viability and pathogenicity, the precise mechanism behind their synthesis into the OM is still largely unclear.
However, during the past ten years, there has been a tremendous advancement in our understanding of the routes and processes that shape a nascent polypeptide into a functioning OMP within the OM.
Here, we will go through a few of these new discoveries that have improved our knowledge of how Gram-negative bacteria produce OMPs, from their production in the cytoplasm to their folding and insertion into the OM.
Therefore, the second membrane called the outer membrane helps in stabilizing bacterial cells as peptidoglycan is thinner in E.coli cells.
Read more about the outer membrane,
https://brainly.com/question/997697
#SPJ5
Why is it important that professional organizations advocate for their members?
a. This ensures that there are good peer network groups.
b. This ensures the best price.
c. This ensures that the member's best interest is protected.
d. This ensures that the best officials are elected.
Answer:
C. This ensures that the member's best interest is protected.
Explanation:
EDG2021
Answer:
C) This ensures that the member's best interest is protected.
Explanation:
on a scale of 1-10, how challenging do you find online learning? What’s going well? What are some of the challenges? What resources would make a difference?
Excited about the fungus chemical's promise for treating cancer, you write up your experimental results and send the paper to a prestigious scientific journal, hoping it will be published. The journal sends your paper out to several scientists for evaluation--a process known as peer review.
The reviewers identify several issues with the experimental design and data presented in your paper. Which of the following criticisms are valid issues of concern that peer reviewers might identify?
The criticisms that are valid issues of concern that peer reviewers might are options A,B and E.
The peer review can only be made only on the basis of the results that are published in the journal for treating cancer by fungus chemicals. On the basis of the result the reviewers will have the only idea about limited things such as- Reviewers can get an idea about if results can be reproducible or not and on the basis of that, it may possible that the effect is not real. Results can give idea about the sample size so it may possible to criticize the sample is small. The chemicals can be effective on the cells as promised but it may also possible that they might kill the normal cells too.
Thus, the correct answer is option A, B, and E.
To learn more about Peer review check the link below:
https://brainly.com/question/2704940
#SPJ4
Complete question: Which of the following criticisms are valid issues of concern that peer reviewers might identify?
A) The effect may not be real because we don’t know if the results are reproducible.
B) Cell samples were taken from too few patients.
C) The experiment should have been run for more days in order to make the effect of the fungus chemical clearer.
D) There was no control in the experiment.
E) The treatment kills cancer cells, but it might simply be a poison that kills all cells—even normal cells.
What are staphylococci
Eh...
Based off what I know, it is any of several spherical bacteria of the genus Staphylococcus, occurring in pairs, tetrads, and irregular clusters, certain species of which, as S. aureus, can be pathogenic for humans.
Thanks!
Answer: I hope this is helpful mark me brainlist if correct then no if wrong Happy Thanksgiving
Explanation:
staphylococcus- a bacterium of a genus that includes many pathogenic kinds that cause pus formation, especially in the skin and mucous membranes.Staphylococcus is a genus of Gram-positive bacteria in the family Staphylococcaceae from the order Bacillales. Under the microscope, they appear spherical, and form in grape-like clusters. Staphylococcus species are facultative anaerobic organismsStaphylococcus (staph) is a group of bacteria. There are more than 30 types. A type called Staphylococcus aureus causes most infections. Staph bacteria can cause many different types of infections, including: Skin infections, which are the most common types of staph infections.
What is the second step in the classification of living things
Answer:
The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species
A student is testing isopods’ response to light. Isopods (also known as pill bugs or sow bugs) are crustaceans that breathe through organs that need to be kept moist. The results of the experiment show that the isopods move away from light and gather in dark areas as soon as they hatch. Select two statements that explain whether this behavior by the isopods is innate or learned and what adaptive advantage this behavior may have.
A. This behavior appears to be innate, because the isopods could not have learned the behavior during the experiment. The animals exhibited this behavior as soon as they were exposed to the light, right after they hatched.
B. This behavior has an adaptive advantage for isopods because dark areas in nature are usually moist. Those isopods that moved to dark, moist areas were more likely to survive and pass the genetic trait to their offspring.
C. This behavior appears to be learned, because the isopods only exhibited this behavior after they were exposed to the light in the experiment.
D. This behavior is artificial and therefore does not have an adaptive advantage for isopods in nature, because those isopods that moved to dark, moist areas would more likely become food for predators and would not survive.
The behavior of isopods has an adaptive advantage for them because dark areas in nature are usually moist. Those isopods that moved to dark, moist areas were more likely to survive and pass the genetic trait to their offspring. Thus, the correct option is B.
What is Adaptive advantage?An adaptive advantage is a reproductive advantage in an organism that derives from being well-suited to the specific environment in which it lives. Adaptive advantage is likely to result in an organism that is producing more offspring than those organisms without the adaptive advantage.
Isopods show adaptive advantage because isopods move to dark areas away from light which are usually moist. The isopods that moved to the dark, moist areas were more likely to survive and pass the genetic trait to their offspring than other isopods.
Therefore, the correct option is B.
Learn more about Adaptive advantage here:
https://brainly.com/question/28881538
#SPJ1
how is this hermit crab affected by changes in water level (if it even is affected)
Answer:
Hermit crabs can't breathe air and they will drown in water, so the best way to maintain humidity is to provide an ideal enclosure. These include aquariums and marine terrariums that are strong enough to hold wet sand with covers that allow some ventilation and keep the crabs and humidity in.
But also it could effect climate change.
Explanation:
(hope this helped if not I will do more research, I wasn't sure if this is what you wanted)
Answer:
climate change affects multiple factors such as temperature and salinity,
Explanation:
27.
Arrange the words given below in a meaningful sequence.
1. Key 2. Door 3. Lock 4. Room 5. Switch on
A) 5, 1, 2, 4, 3
B) 4, 2, 1, 5, 3
C) 1, 3, 2, 4, 5
D) 1, 2, 3, 5, 4
The correct meaningful sequence for the given words is 1, 3, 2, 4, 5. The correct answer is option C.
The logical order of the words is as follows:Key: The key is needed to unlock or open something.Lock: The lock is where the key is inserted to secure or restrict access to something, such as a door.Door: The door is the entryway or barrier that can be opened or closed using the key and lock.Room: The room is what lies behind the door, a space that can be accessed by unlocking and opening the door.Switch on: Once inside the room, the switch can be turned on to activate the lights or power supply within the room.Therefore, the meaningful sequence that represents the logical flow of actions is 1, 3, 2, 4, 5, which corresponds to option C).For more questions on sequence
https://brainly.com/question/28282298
#SPJ8
A person who has allergies has a compromised immune system because the body’s immune system
Answer:
overreacts to an antigen.
Explanation:
A person who has allergies has a compromised immune system because the body’s immune system overreacts to an antigen.
Hope this helps!
Which of the following is an example of a protein?
Group of answer choices
hormones and fats
enzymes and antibodies
RNA and DNA
starch and glucose
Answer:
RNA And DNA
Explanation:
because it gives protein as ew need
TIME REMAINING
18:55
A hypothesis is _______.
a.
a proposed solution to observed phenomena
b.
a question derived from observed phenomena
c.
a testable explanation for observed phenomena
d.
generated as the final step in scientific inquiry
A hypothesis is a testable explanation for observed phenomena (option C).
What is a hypothesis?A hypothesis is a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.
A hypothesis is usually constructed prior to the experiment and is a statement that takes the 'IF, THEN' format.
A hypothesis must be subjected to experimentation to affirm it's validity and can either be rejected or accepted. Therefore, option C is correct.
Learn more about hypothesis at: https://brainly.com/question/29576929
#SPJ1
Kelp is a representative of the
Answer: Seaweed.
Hope this helps <33
Select all the ratios that are
equivalent to each other.
A4:7
B. 8:15
C 16:28
D. 2:3
E 20:35
which organism in the food web might be found in the first tropic level of a food chain
cougar
mouse
acorns
coyote
Answer:
Acorns would be found at the first trophic level of a food chain.
Explanation:
blood infected with hepatitis can only spread hepatitis within the first 24 hours of a blood spill ?
true or false?
Answer: THE ANSWER IS FALSE.
A patient drops off a written prescription for "glucose test strips for #100, test QD,
for non-insulin dependent diabetes (E11.9)" with PRN refills for one year. Based
on this information, can you bill this prescription to Medicare Part B?
O Yes
O
No
Based on the provided information, it is not possible to determine whether the prescription can be billed to Medicare Part B or not.
Medicare Part B is a component of the United States government's Medicare program, which provides medical insurance coverage to eligible individuals. Part B primarily covers outpatient services, including doctor visits, medical supplies, and certain prescription medications. However, not all prescriptions are automatically covered under Medicare Part B.
To determine whether a specific prescription can be billed to Medicare Part B, several factors come into play. These include the coverage policies and guidelines set by Medicare, which outline the specific criteria for reimbursement. Medicare Part B generally covers medications that are deemed medically necessary for the treatment of a condition or illness.
The decision to bill a prescription to Medicare Part B depends on various factors such as the specific coverage policies and guidelines set by Medicare, the medical necessity of the prescribed item, and the individual's eligibility for Part B benefits.
Therefore, it is not possible to bill this prescription to Medicare Part B.
For more details regarding Medicare Part B, visit:
https://brainly.com/question/32352698
#SPJ1
Describe the characteristic of the endoplasmic reticulum
Answer:
The general structure of the endoplasmic reticulum is a network of membranes called cisterns, these bag-like structures are stretched together by the cytoskeleton. The phospholipid membrane surrounds the cystic space (or lumen), which is an extension of the nuclear space but is separated from the cytosol
Which might you use to observe the properties of matter?
1.) taste
2.) sight
3.) smell
4.) all of the above
Answer:
1
Explanation:
it's not the answer, disregard this.
Answer: 4) all of the above
Explanation: You can use taste to taste a juice (a liquid), you can use your sight to look at rocks (a solid), and you can use your sense of smell to smell smoke (a gas)
88 points please help will give brainiest
1. What are some patterns noticed about buffalo feeding? Any specifics about the season, food preference, habits, etc.
2. What are some patterns noticed about other organisms’ feeding patterns? Any specifics about the season, food preference, habits, etc.
3. Make notes of anything that could affect the buffalo’s ability to feed.
Answer:
1.
The population and the size of the African Buffalo increased from 1961 to 1975 by almost 50,000.
The population and the size of the African Buffalo decreased from 1976 to 1998 about 62,000.
At the year of 1999, the population and the size of the buffaloes begin to increase again.
From the years 1975 to 1985, they didn't collect any data
2.
Prey traveled in groups
There were adult animals watching their young
The groups seem like they're separated
3.
The feed will enter the rumen compartment when swallowed by the animal. ... The pH of the rumen content is similar to that of cattle, and it is affected in the same ... between protein and energy in the rumen to be able to do their qualified job.
Why are there largely a larger number of producers than tertiary consumers in an ecosystem?
A. Only about half of the energy passes on to the next organism in a food chain, so there needs to be more of the living things lower in the energy pyramid to support the living things higher in the pyramid.
B. All of the energy is passed from level to level in the energy pyramid, so the number or tertiary consumers is always higher.
C. Only about 10% of energy is passed on to the next organism in a food chain, so there needs to be more of the living things lower in the energy pyramid to support the living things higher in the pyramid.
Answer:
C
Explanation:
the more higher up you go on a pyramid, the lower energy you get
Methods of classification of organisms have changed over time. Which sequence
shows these changes?
by genetic codes by individual cell differences > by physical characteristics
of whole organisms
by physical characteristics of whole organisms — by genetic codes -> by
individual cell differences
by individual cell differences -> by physical characteristics of whole organisms
> by genetic codes
by physical characteristics of whole organisms — by individual cell differences
→ by genetic codes
The sequence which shows how methods of classification of organisms have changed over time is: A. by genetic codes > by individual cell differences > by physical characteristics of whole organisms.
What is taxonomy?Taxonomy can be defined as a method that is typically used for naming, classification and description of the various species of organisms such as humans, plants and animals.
This ultimately implies that, two (2) organisms that share several classification levels would be closely related and have common characteristics such as:
Number of legs.Number of eyes.Tail type.Based on taxonomical records, the methods of classification of organisms have changed over time based on the following:
By genetic codes.By individual cell differences.By physical characteristics of whole organisms.Read more on taxonomy here: https://brainly.com/question/1304906
Answer:
the correct answer is "by physical characteristics of whole organisms → by individual cell differences → by genetic codes"
Explanation:
took the test
Whats the answer? I need help
Answer:
Its 26 I'd assume sorry if I'm wrong it was kind of hard to read the question.
How does the disease in the krill population impact the penguins population
Answer:
A disease in krill can impact the penguin population because it could infect many penguin and kill them, lowering the population.