It is true that rivers and streams are biodiverse ecosystems that are sensitive to change. Details about rivers and streams can be found below.
What is river and stream?A river is a large and often winding stream which drains a land mass, carrying water down from higher areas to a lower point, oftentimes ending in another body of water, such as an ocean or in an inland sea.
On the other hand, a stream is a small river or a body of moving water confined by banks.
Rivers and streams are both freshwater ecosystems, hence, tend to respond to changes in their environment caused by anthropogenic activities.
Therefore, it is true that rivers and streams are biodiverse ecosystems that are sensitive to change.
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Answer:
True
Explanation:
Dna is made of chains of four smaller molecules called.
Answer:
DNA is made of chains of four smaller molecules called "Nucleotides".
Explanation:
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine) in DNA is known as a nucleotides.
Argue whether flying is an innate or a learned behavior for birds.
40. during the song oh i just can't wait to be king" the crocodile has birds in its mouth. this is a
symbiotic relationship. what type of symbiotic relationship is it?
describe three scenes from the movie that show the following scavenger behaviors.
The name of the movie is 'The Lion King' and the missing scene here is the song "I Just Can't Wait to Be King" written by Elton John.
A crocodile that has birds in its mouth represents a type of parasitism, whereas scavenger behaviors include:
bearshyenas piranhasWhat is parasitism?Parasitism is a class of symbiotic relationships in which one species is benefited from such interaction and the other species is harmed.
In this case, when the crocodile needs to clean its tooths, it opens its mouth to allow the arrival of birds.
Moreover, scavengers are organisms that eat dead biomass (e.g. dead animals or rotting plants).
In conclusion, although the movie is NOT found here, a crocodile that has birds in its mouth represents a type of parasitism, whereas animals having scavenger behaviors include bears, hyenas and piranhas.
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question; both trypanosoma and plasmodium are different in .......
a) type of nucleus
b) ability to move
c) mode of nutrition
d) phylum they belong to
The study of the interactions between drugs and their receptors and the series of events that result in a pharmacologic response is called
Answer:
Pharmacodynamics (PD) is the study of the biochemical and physiologic effects of drugs (especially pharmaceutical drugs
Why must cytosine bind to guanine, while thymine bonds to adenine?
a
These are Chargaff's rules.
b
Like bonds with like.
c
Two-ring molecules (adenine and guanine) must bind with one-ring molecules (thymine and guanine) to keep the distance between DNA chains consistent.
d
This will not happen, as it violates Chargaff's rules.
These are Chargaff's rules that is why cytosine bind to guanine, while thymine bonds to adenine. Thus, the correct option is A.
What is Chargaff's rule?According to the rule, in DNA there is always equality in quantity between the bases A and T and between the bases G and C. (A is adenine, T is thymine, G is guanine, and C is cytosine).
According to Chargaff's rule, Concentration of adenine = concentration of thymine. therefore if [A]=40% then the [T] will also be 40%.
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Regular doses of _____, a common fish contaminant, are poisonous to the nervous system and associated with certain heart, blood, and other tissue abnormalities in adults.
Answer:
mercury
Explanation:
What is a fact? quoted information provable information estimated information repeated information
The answer is provable information
Edge 2022
The fact is provable information, thus option "B" is correct.
What is Quantitative data?Quantitative data refers to the type of data which provides numerical information. Quantitative data includes the statistical techniques. For example, quantitative data can be used to drive the result of satisfaction survey of customers of using a product. The customer rate their satisfaction survey on a scale of 1-5 and hence statistical technique would be required to draw numerical conclusion.
The fact is provable information, thus option "B" is correct.
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Which of these does NOT occur during meiosis?
production of new gene combinations
production of identical gametes
crossing-over of homologous chromosomes
reduction of chromosome number by one-half
what is the function of a chromosome?
what is produced by the process of meiosis
Answer:
meiosis produces reproductive cells - egg and sperm cells
Most of the carbon in the carbon cycle exists as carbon dioxide in…
A. fossils.
B. the oceans.
C. the atmosphere.
D. nucleic acids.
Answer:
C.
Explanation:
(C).the atmoshphere
Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. Which statement best describes Gabriel’s measurements?
They will remain constant.
They will both be recorded in joules.
They will both be recorded in hertz.
They will involve compressions.
Answer:Its A
Explanation:Edge
Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. The statement they will both be recorded in joules is best describes Gabriel’s measurements. Correct Option is 2.
Energy and work are both physical quantities measured in joules (J) in the International System of Units (SI). In this experiment, Gabriel is measuring the energy and work associated with the ball rolling down a hill, and both measurements will be expressed in joules. Energy represents the capacity to do work, and work is the transfer of energy that occurs when a force is applied to move an object over a distance. Both energy and work are directly related and are measured in the same unit, joules, which is a measure of energy or work.
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What is the original starting color for Glucose indicator?
Answer:
If adding Benedict's reagent in the glucose solution and then heating it, the solution changes gradually from blue to dark orange. That is, colors change in the order of blue-green-yellow-dark orange according to the concentration of glucose.
What does “adaptation” of populations have to do with the “fitness” of individual organisms in the population?
Answer:
As organisms adapt to changing conditions, they evolve in a way to fit their surrounding environment. According to Darwin's survival of the fittest concept, organisms that can adapt to fluctuating conditions are more fitter and hence selected by nature.
Here fitter means reproductive superiority.
When a child is bron with a chromosomal mutation when did the mutation occur
Answer: It happens during meiosis
An ecosystem with high biodiversity experiences a wildfire. What is likely to happen?
A. Some of the species will live, and the ecosystem will survive with reduced biodiversity.
B. All of the species will die, and the ecosystem will collapse.
C. The ecosystem will remain the same before and after the wildfire.
D. Biodiversity will increase after the wildfire.
Answer:
A. Some of the species will live, and the ecosystem will survive with reduced biodiversity.
Explanation:
Not all species will die, and the ecosystem will definitely not stay the same after the fire. But, most of the species will live and the ecosystem will just have less biodiversity.
Answer: A
Explanation: Though some of the species will die. if it is a natural fire it means that some species will die for a reason. But the rest of the species will live.
Using what you have learned from the lesson and the virtual lab activity, answer the following questions in complete sentences.
1. How did the colors of each type of prey affect its population size over time?
2. How do you predict the data would change if you continued? Explain your answer.
3. What traits could help a predator be more "fit" to survive in each environment? Be specific.
4. Describe other adaptations besides color that could affect an individual's survival.
5. Explain what will happen if there are not enough resources to support the individuals in a species.
6. This experiment tested natural selection. What could be another possible mechanism of evolution for the rabbits to evolve? Be specific.
Answer:
Cookies are ok not the best but ok
Explanation:
Review the following DNA sequences:
Original DNA Sequence: G G C C G T T T C A C C
Mutated DNA Sequence: G G C C G T T A C A C C
Which type of mutation has occurred?
Answer:
Substitution
Explanation:
Original DNA Sequence Protein 'T' in the mutated DNA sequence has been replaced (Substituted) by 'A'.
I’m general how many human activities influence the carbon cycle
Explanation:
Factories, cars, oil producers, woodcutting, building houses, and even building new roads makes the carbon cycle harder to go through.
What/who are primary consumers in the food chain process?
Answer:
Explanation:
Ruminant animals. Cows, goats, zebras, and giraffes are examples of primary consumers and these herbivores feed on plant material like grass, branches, and roots.
Birds. Many birds are examples of primary consumers because they only eat seeds, cherries,
why are stars not distributed uniformly throughout the universe
Which of the following is true about blood pressure?
que
A It is not affected by atheroscierosis.
B
It is typically lower in veins than in arteries.
C
It drops a great deal when traveling through
arteries.
Diastolic pressure is higher than systolic
pressure.
D
Answer:
d
Explanation:
because i have high blood pressure all this time
What is the part of the kidney where urine is formed?.
How can local environmental changes have global effects?
a Organisms can move from one environment to another
b Air and water move from region to region
С. Increased carbon dioxide in one location can cause increased temperatures in other locations,
d. All of the above are true
Answer:
I think the answer is D
Explanation:
organisms can migrate to other areas and become an invasive species which can cause global problems. other things such as air pollution, water pollution, fires ect dont just remain in one area and all contribute to global warming which is a global issue.
What is the one part of the food chain that no one likes to talk about?
Answer:
Plants or decomposers.
William used a hammer to pound a nail into a wooden board. When the nail
was about halfway through the board, he stopped and turned the board upside
down. The nail stayed in place in the board. Which of the following acts on the
nail to keep it in place in the board?
F. friction
G. gravity
H. magnetism
I. weight
2. (b) Why is it important to maintain genetic diversity in populations?
Genetic diversity encourages the health of a species and provides material resources such as plants. The loss of genetic diversity leads to reduced options for mates which means even more loss of a species and the species becomes more susceptible to disease. These are very few results that occur with the loss of genetic diversity.
Typical gram-negative bacteria are more impervious to the action of antimicrobial chemicals than are gram-positives because gram-negatives have a(n)
As gram-negative bacteria have an extra layer of cell wall therefore it is less sensitive towards antimicrobial chemicals than gram-positive bacteria.
Why gram-positives are less impervious to the action of antimicrobial chemicals?Gram-positive bacterial cell wall is made up of only the peptidoglycan layer and it does not have an extra barrier that protects it from some antimicrobial chemicals.
Gram-negative bacteria have two layers of cell wall peptidoglycan layer and a lipopolysaccharide layer.
Thus, gram-negative bacteria have an extra layer of cell wall.
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Why were different organisms
found on each island of the
Galapagos?
A. The islands were far apart geographically
from one another.
B. The climate of the islands varied.
C. Organisms were the same from one island to
the next.
Answer:
Its B
Explanation:
The Climate Of The Islands Varied