Answer:
a product of photosynthesis and a reactant of cellular respiration
When lions prey on a herd of antelopes, they are able to catch the slowest antelopes first. The faster antelopes escape. Which part of Darwin's concept of natural selection might be used to describe this situation?
traits are inherited.
differential reproduction occurs
No answer text provided.
variation in a population exists
Answer:
variation in a population exists
Explanation:
Variation is present in a population of antelopes so due to this variation, the predator such as lion can catch the slowest antelope that is present in the population while on the other hand, the faster antelopes can save their lives by running very fast. Variation is present in a population of antelopes due to availability of food as well as genetic characteristics. These variation leads to the availability of food to the lions.
Four hundred beetles of the same species were sprayed with an insecticide. Several weeks later, nearly all the beetles were dead. A few, however, survived. Which statement best describes the future generations of these beetles?
Answer:
................ ....
Future generations of beetles will likely survive the insecticide if it is sprayed again because gene resistance would pass to the next generation. Hence, option D is correct.
What is gene resistance?Microbes develop defense mechanisms against the effects of antibiotics, which leads to the development of antimicrobial resistance. Microbes of all types can develop resistance. Infection-resistant fungi develop. Antiviral resistance among viruses develops.
Once a bacteria have acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.
Future generations of beetles will likely survive the insecticide if it is sprayed again. Hence, option D is correct.
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Your question is incomplete, but most probably your full question was,
Four hundred beetles of the same species were sprayed with an insecticide. Several weeks later, nearly all the beetles were dead. A few, however, survived. Which statement best describes the future
generations of these beetles?
A
The surviving beetles will not pass on their favorable traits to future generations.
B
The majority of beetles in future generations will also die from the insecticide.
C
The beetles in future generations will have no immunity to the insecticide
D
The future generations of beetles will likely survive the insecticide if it is sprayed again
An oil mining company has started drilling oil offshore at a location. Thus far, it has benefitted the people by increasing employment opportunities in the area. Predict the most likely outcome the oil mine will have on the environment?
It will cause drying up of water in plants.
It will emit radiation which destroys plants.
It will produce greenhouse gases which pollutes soil.
It will contaminate the soil and water in the ocean.
Answer:
It will contaminate the soil and water in the ocean.
Explanation:
This is because the oil drilling will cause oil spillage on the soil and water in the ocean. The oil spillage will cover the oil and it will not allow plant to grow there. Any crops planted there will not grow because it had release chemical and act as covering which cannot support plant growth. When it is washed into the ocean or water bodies, it can lead to death if aquatic live because it will affect the amount of oxygen that will available to them.
Answer:
It will contaminate the soil and water in the ocean.
Explanation:
Points earned on this question: 3 ;)
What occurs during the process of gas exchange?
Answer:
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
100 points and Brainliest!!! Plus, an opportunity for an extra 100 points if correct.
Q) In three to five sentences, construct an argument for the claim that natural selection leads to evolution. Provide evidence for this claim, and be sure to explain how an organism shows the four parts of the process of natural selection. You may use any organism with the exception of bacteria and antibiotic resistance.
Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
This method of natural selectionthat the fantastic alleles of this variation organism are surpassed directly to offspring, the system of natural selection results in evolution occurring.
What is natural selection?Natural selection is the system thru which populations of residing organisms adapt and extrade. Individuals in a populace are evidently variable, which means that they're all one of a kind in a few ways.
Natural selection is a mechanism of evolution as there are. Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation. Natural selection is a system in which organisms can be higher tailored to their surroundings will live to tell the tale and reproduce. Darwins theory about the giraffe showing the neck evolution by the natural selection.Read more about the evolution:
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Can you please help me
It is for my biology class
Thanks
Mendel chose pea plants with easy to see ___________, each of which had two forms. For example, flower color is a characteristic with two forms:purple or white.
Answer:
alleles/phenotypes
steven observes ducks on a pond going underwater for several seconds at a time before resurfacing. The ducks are most likely:
F. playing with the ducks
G. obtaining oxygen from the water
H. communicating with other ducks
J. feeding
Hi! I need help, please :)
Know how to calculate the amount of chromosomes in mitotic cells and in gamete cells, when given an amount of the chromosome number for one of the two types of cells. For example, a fruit fly has 8 chromosomes or 4 pairs of chromosomes in its wing cells, how many chromosomes will be in each egg cell?
Answer:
4 chromosomes
Explanation:
Meiosis is a kind of cell division that produces daughter cells that already have their chromosome number reduced by half. Due to this reason, meiosis is called a reduction division. A diploid parent cell (2n) will produce gametes with haploid cells (n).
According to this question, a fruit fly has 8 chromosomes or 4 pairs of chromosomes in its wing cells, after undergoing meiotic division, it will possess 4 chromosomes in each gamete cell. Note that the chromosome number has been reduced by half.
Compare and contrast negative and positive feedback loops. Which one is more common? Why?
Answer:
Negative Feedback LoopsA negative feedback mechanism or loop is a pathway stimulated by the deviation in the output, which causes changes in output to the direction opposite to the initial deviation.The negative feedback mechanism moves the variable factors towards the stable state or homeostasis after the control unit interprets the extent of the deviation.Negative feedback loops are more common than positive ones as they tend to stabilize the system.The loop detects the change in output and acts in the opposite direction to nullify the stimulus causing the change.These loops are activated under two conditions; when the value of the variable is above the normal value and has to be brought down and when the value of the variable is below the normal values and has to be brought up.Negative feedback mechanisms occur as a part of homeostasis to bring the variables back to their normal levels by counteracting the stimulus, causing the deviation in the first place.Like in a positive feedback mechanism, a negative feedback mechanism also contains different components that together help to maintain a stable state.Examples of Negative Feedback Mechanism
1. Regulation of blood glucose level
2. Temperature regulation
Positive Feedback LoopA positive feedback mechanism, as the name suggests, is a pathway that in response to a deviation in the output causes the output to change even more in the direction of the initial deviation.A positive feedback mechanism amplifies the deviations and brings state changes to the output.Positive feedback mechanisms are far less common than negative feedback mechanisms as it moves the body away from homeostasis.The process of positive feedback mechanism progressively amplifies the response as long as the stimulus is continued.The positive feedback loop can consist of either a single component that activates its own activity or several components with direct and indirect interactions.Positive feedback loops in biological processes are often observed in processes that need to occur quickly and towards completion as the output tends to increase the effect of the stimulus.Positive mechanisms are very few within living systems like the human body, but these can also be observed in the ecosystem, like in the case of ripening of fruit.Examples of Positive Feedback Mechanism
1. Menstrual cycle
2. Childbirth
Negative feedback loops are more common than positive ones as they tend to stabilize the system.
Positive Feedback vs Negative Feedback (8 Key Differences)Definition
The positive feedback mechanism is a pathway that in response to a deviation in the output causes the output to change even more in the direction of the initial deviation. A negative feedback mechanism or loop is a pathway stimulated by the deviation in the output, which causes changes in output to the direction opposite to the initial deviation.Effect on the homeostasis
A positive feedback mechanism breaks down the homeostasis system of the body. A negative feedback mechanism works to maintain the conditions of homeostasis in the body.Occurrence
The positive feedback mechanism is less common and occurs in specific situations.The negative feedback mechanism is more common and occurs in different organs and systems in the body.Stability
The positive feedback mechanism is less stable.The negative feedback mechanism is more stable.Effect
In a system with a positive feedback mechanism, the effective input is increased by the addition of actual input with the feedback signal.In a system with a negative feedback mechanism, the effective input is decreased as the feedback signal inhibits the actual input.External interruption
A positive feedback mechanism might require an external interruption.A negative feedback mechanism doesn’t require an external interruption.Changes
Positive loops enhances the change in physiological factors.Negative loops resists changes in physiological factors.Examples
Positive feedback mechanism in nature is observed during childbirth in humans and during the ripening of fruits. The negative feedback mechanism is observed during thermoregulation and maintaining the blood glucose level.Match the types of resources with their descriptions renewable and nonrenewable or both
Solution :
1. They can be reproduced on a human timescale --- renewable resources
2. They take millions of years to form -- non renewable resources
3. They are produced naturally -- renewable resources
4. They are extracted by mining -- non renewable resources
5. Their use as an energy source is increasing because they reduce pollution -- renewable resources.
Answer:
I hope I'm right
Which statements correctly describe greenhouse gases?
Answer:
1. Greenhouse gases absorb all kinds of radiation that fall on them
2. Greenhouse gases are released when the suns rays hit earth
3. Greenhouse gases allow the suns rays to pass through
4. Greenhouse gases absorb infrared radiation from earth’s surface
The main function of the central nervous system is to:
A. process information from stimuli and respond.
B. process information from responses and sense stimuli.
C. produce stimuli and cause reactions in the body.
D. sense reactions and cause stimuli in the body.
The answer is A. process information from stimuli and respond.
Good luck :)
The main function of the central nervous system is to process information from stimuli and respond. So, the correct option is A.
What is central nervous system?The brain and spinal cord are two examples of the vast network of nerve tissues that make up the central nervous system (CNS). It controls and regulates various biological processes including movement, sensation, perception and cognition. It is in charge of processing and coordinating sensory input and muscular output.
The CNS collects information from the body's sensory organs, interprets and integrates it, and then generates the necessary responses to support the body in maintaining homeostasis and responding to its surroundings. The CNS is also involved in higher-order processes that include reasoning, picking up new information, and memory. The primary job of the central nervous system is to process information from stimuli and act.
Therefore, the correct option is A.
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Brownblack101 answer this
Analog requires a lot of bandwidth, but digital requires less.
Which sequence represents the order of some events in human development?
(1) zygote → sperm → tissues → egg
(2) fetus → tissues → zygote → egg
(3) zygote → tissues → organs → fetus
(4) sperm → zygote → organs → tissues
Answer:
Answer is 3. Hope this helps!
Explanation:
The sequence order zygote → tissues → organs → fetus is CORRECT (Option 3).
A zygote is a cell formed by the fusion of two germinal (gamete) cells.Tissues are groups of cells that are specialized to carry out some function.An organ is a group of tissues that work to perform specific functions.A fetus refers to the unborn offspring that develops from an animal embryo.In conclusion, the sequence order zygote → tissues → organs → fetus is CORRECT (Option 3).
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Within eukaryotic cells, energy is derived from the breaking down of glucose. What is this process called?
O a. photosynthesis
O b. dehydration synthesis
O c. cellular respiration
O d. transformation
Answer:
C
Explanation:
A population of squirrels eats acorns from local oak trees. In some years, oak trees produce much greater
numbers of acorns than usual.
Which of the following is the most direct effect of an increase of acorns on the squirrel population?
Answers
A The population has fewer predators.
B The population size increases.
C The population expands its territory into new habitats.
D The population size decrease due to competition.
Answer:
B
Explanation:
The population size increases
A population of squirrels eats acorns from local oak trees. In some years, oak trees produce much greater numbers of acorns than usual. The most direct effect of an increase in acorns on the squirrel population would be: the population size would increase, which is option B.
When there is an abundance of acorns, the squirrel population can benefit from a readily available food source. With more food available, squirrels are better able to meet their nutritional needs and reproduce successfully. This leads to an increase in the population size as more squirrels are born and survive due to the abundance of resources.
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What is an organic process?
Answer:
Organic Process: a natural process occurring in living organisms
3 functions of lipids
Pedigrees
Had to repost
This is a practice problem I turned in and I screenshotted what my teacher told me but I still don't understand what's wrong. Thank you
PLEASE NO ANSWERS I HAVE TO DOWNLOAD. NO FILES
It is possible for a repressor to negatively regulate the expression of an operon because: A. the repressor-binding site overlaps the promoter site of the operon, allowing it to physically block the binding of RNA polymerase. B. the repressor induces the expression of the inducer by binding to the promoter that comes before the inducer gene. C. the repressor-binding site on the DNA overlaps with the translation start site, thereby preventing the transcription. D. one of the structural genes expressed in the operon negatively regulates the repressor. E. the repressor physically blocks where the activator should be binding on the operator region.
Answer:
A.
Explanation:
the repressor-binding site overlaps the promoter site of the operon, allowing it to physically block the binding of RNA polymerase.
is cc heterozygous or homogeneous?
Answer:
cc is homoozygous i think
Explanation:
does anyone know any of these answers??!
Answer:
free ponts how kind of you
Explanation:
When looking through the spectrascope, the sunlight looks like ?
A:rainbow
B:red light
C:green light
Answer:
i believe it is a
Explanation:
The parenting style that can be described as lenient or inconsistent is called __________.
A. authoritarian
B. authoritative
C. permissive
D. backbone
Answer:
A. Authoritarian
Explanation:
The parenting style that can be described as lenient or inconsistent is called permissive. Therefore, option C is correct.
What is a permissive parenting style?High responsiveness and minimal demands are characteristics of the indulgent parenting style, sometimes referred to as permissive parenting. Parents that are permissive and indulgent are particularly sensitive to the emotional needs of their kids. However, they either fail to establish boundaries or enforce them in an inconsistent manner.
Academic attainment is typically lower for children of lenient parents. Parents that are permissive don't discipline or manage their kids' behavior.
The parenting style that can be described as lenient or inconsistent is called permissive. Therefore, option C is correct.
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which of the following is a potential consequence of soil compaction and loss of soil structure
Answer:
The compaction force may cause the crushing of soil aggregates, which has a negative affect on soil aggregate structure. ... Reduced soil aeration can affect root growth and function, and lead to increased risk of crop disease. All these factors result in increased crop stress and yield loss.
Describe one way that the functioning of plant cells is similar to the functioning of animal cells.
Answer:
One way in which the functioning of plant cells is similar to the functioning of animal cells is that they are both eukaryotic cells. This means that they both have membrane organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Moreover, these similarities in cellular structure help each cell function in a similar manner.
why is the process of cellular respiration important to living organisms?
Answer:
to respire
Explanation:
To continue livelyhood we should respire
The following are the steps listed in incorrect order to describe the process of energy transfer from the sun to the molecules that power the cellular processes of organisms. 1. Energy is stored in the form of glucose. 2. Energy from sunlight is absorbed by cells. 3. Energy is used by mitochondria to produce ATP. 4. Energy is released when ATP is broken down to ADP and P.5. Energy is released when glucose is broken down into pyruvate. Which of the following describes the correct order of this energy transfer process?
B. 2, 1, 5, 3, 4
C. 2, 4, 5, 1, 3
A. 3, 2, 1, 5, 4
D. 1, 4, 5, 1, 3
The correct order of this energy transfer process is as follows:
Energy is used by mitochondria to produce ATP. Energy from sunlight is absorbed by cells.Energy is stored in the form of glucose.Energy is released when glucose is broken down into pyruvate.Energy is released when ATP is broken down to ADP.Thus, the correct option is A, i.e. 3, 2, 1, 5, 4.
What is the Cellular process?The Cellular processes may be defined as those processes that occur in living organisms in order to regulate the communication between cell requirements and body utilization.
The initial step in the cellular process is that the energy is utilized by the mitochondria in order to construct ATP. Then, the energy is significantly absorbed by cells from the sunlight that later converts into chemical form as a product known as glucose.
Energy is further released when glucose is broken down into pyruvate and ATP is broken down to ADP.
Therefore, the correct order of energy transfer from the sun to the molecules that power the cellular processes of organisms is well described above.
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