Answer:
Economy
Explanation:
it's the answer that makes the most sense, they're contributing by providing jobs, so it must be economy.
Meiosis produces four nuclei that have different chromosome numbers
from the parent cell.
True or False
Help please
Answer:
I would say true
Explanation:
they do produce 4 different chromosomes
Answer:
true
Explanation:
the are 23 chromosomes in the daughter cell and 46 in the parent cell
In the 1950s, Stanley Miller and Harold Urey conducted experiments in which they fired electrical sparks in the presence of a mixture of different gases. How d these experiments contribute to the theory of the origins of life on earth?
A They determined that the age of organic molecules can be measured by the half-life of isotopes
B They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere
C They proved that organic molecules formed from the accumulation of debris from space
D They discovered that organic molecules would not have formed without the presence of oxygen in the atmosphere
biology spring assessment 2020-2021
Answer:
b.
Explanation:
They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere.
What is Stanley miller and Harold Urey?The Miller-Urey experiment tested the hypothesis that life, or more precisely organic molecules, might have arisen by nothing more than straightforward chemical processes by simulating the conditions on the early Earth.
Miller's result confirmed A.I. Oparin's theoretical hypotheses, and it is regarded as the standard experiment looking into the hypothesis of abiogenesis.
The Miller-Urey experiment was the first attempt to investigate theories regarding the beginning of life experimentally. Stanley Miller recreated circumstances that were supposedly typical on the early Earth.
Therefore, They showed that organic molecules could be formed from materials nypothesized to be available in the Earth's early atmosphere.
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What is an organic process?
Answer:
Organic Process: a natural process occurring in living organisms
Pesticides sprayed on the plants in fields become
drip onto the soil.
when they settle and
O A. ammonia
O B. pollutants
C. nutrients
D. acid rain
Answer:
pollutants
Explanation:
have a nice day :)
Answer:
pollutants
Explanation:
I WILL GIVE YOU BRAINLYEST!! ANSWER THESE TWO QUESTIONS PLSS!!
Using your own words, can you describe
the meaning of a watershed?
How are groundwater and surface water different?
PLS HELP ME!! And have a great day!
Watershed is like where rainwater gathers to then be drained off into like a pond or river.
Surface Water is just water in like lakes and ponds while ground water is underneath the surface of the Earth.
Best of luck!
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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the united states , canada , japan , and england are all examples of ?
1. developed nations
2. developing nations
3. low-income nations
4. middle-income nations
5. transitional nations
Answer please I will give points
Answer:
A
//this msg was written as I needed more words//
Answer:
The answer is a
Explanation:
The answer is a because it ball a can't rollout a flat surface unless gravity pulls on ball A
Brownblack101 answer this
Analog requires a lot of bandwidth, but digital requires less.
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.
Name and describe how at least 1 biotic factor can contribute to changes in gene frequency over
time through natural selection.
Answer:
Change in food source.
Explanation:
If there is a change in food source, then the organism will have to adapt to that change. For example, with Darwin's Theory on the finches on the Galapagos Islands. There were many different varieties from different size to different beaks. This was because of changes on food sources and they adapted to obtain them more.
Natural selection can contribute to variations in gene frequency throughout time as a result of changes in food supply.
Changes in gene frequency:If the organism's food supply changes, it will have to adjust to the new situation.
For example, Darwin's Theory on the Galapagos Islands' finches. There were several distinct types, ranging in size and beak shape. This happened due to changes in food supplies, and they evolved in order to access more of them.
Find out more information about 'Gene'.
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Suggest two reasons why a person aged 16–49 years might not be using contraception.
Answer and Explanation:
The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.
#teamtrees #PAW (Plant And Water)
Oxygen is
a product of photosynthesis and cellular respiration.
a reactant of photosynthesis and cellular respiration.
a product of photosynthesis and a reactant of cellular respiration.
a reactant of photosynthesis and a product of cellular respiration.
Answer:
a product of photosynthesis and a reactant of cellular respiration
what’s the code for UCU AAA CCU GGG UAA
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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ASAP Becky made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties.
Four waves labeled A, B, C, and D are shown. Wave A has the greatest gap between its consecutive peaks and Wave B has the least gap between its consecutive peaks. Wave C has the second greatest gap between consecutive peaks, followed by Wave D.
Which wave best represents ultraviolet rays?
Wave A
Wave B
Wave C
Wave D
The best wave represents ultraviolet rays is Wave B.
Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
How harmful are UV rays?Exposure to UV rays can cause early ageing of the skin and signs of sun harm such as creases , leathery skin, liver bumps, actinic keratosis, and solar elastosis.
UV beams can also generate eye pains. They can force the cornea to become inflamed or ignited.\
Thus, the option "B" is correct, Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
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Answer:
b
Explanation:
Hi! I need help, please :)
When a substances like sugar, salt or lemon juice dissolve into a liquid and appears to "disappear", it is no longer present in the solution.
True
False
Answer:
False.
Explanation:
A solvent is the substance that does the dissolving – it dissolves the solute. In salt solution, water is the solvent. During dissolving, particles of solvent collide with particles of solute. They surround the particles of solute, gradually moving them away until the particles are evenly spread through the solvent.
The molecules are still there.
Can you please help me
It is for my biology class
Thanks
What type of wave is light? And does it need a medium to travel through?
Answer: light is a eletromagnetic wave, no it does not need a medium
Explanation:
have a good day lad :)
Answer:
light arent a specific "type" of wave, but it refers to any wave/wavelength in the electromagnetic spectrum
and yes, it needs a medium, just like sound waves
Which of the following can
conserve energy?
A. crop rotation
B. intercropping
C. drip irrigation
D. recycling newspaper
Answer:
jbbbbbbbbbbb
Explanation:
jjjjjjjjjjjjj
Answer:
B i think
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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39
What did Darwin's analogy of the tree of life suggest? *
(2 Points)
Answer:
all species were derived from ancestral group
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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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.
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
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:
What type of scientists uses a dichotomous key?
Answer: biologists are a type of scientist that use dichotomous.
The Type of scientists that uses dichotomous key is : Biologist
A lot of scientists make use of the Dichotomous key for identifying unknown biological organisms like Biologists. A dichotomous key consists of a set of choices, with each choice consisting of two statements, these statements makes it possible to name an unknown biological organism.
A dichotomous key is a simply method used for the identification of organisms ( groups of unknown organisms are repeatedly divided into two groups to get more information about the organism )
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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
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.