Answer:
Before the industrial revolution, there wasn't much pollution/soot, and the moths were mostly light colored. When humans started using machines for everything, soot coated the trees and the light colored moths were easier for birds (predators) to see. The moths became mostly dark colored, because it was better camoflauge.
Now that we have environmental restrictions, there isn't as much soot everywhere. Now moths are mostly light colored again, because the dark moths are easier to see.
A chemical reaction that releases energy is called ___________ and a chemical reaction that absorbs energy is called ___________ .
A
exothermic; endothermic
B
endothermic; exothermic
C
exothermic; accumulative
D
liberal; endothermic
Answer:
a exothermic;endothermic
Explanation:
learned that in sience class yesterday
Answer:
a) Exothermic ; Endothermic
Explanation:
A chemical reaction that releases energy is called exothermic reaction and a chemical reaction that absorbs energy is called endothermic. Hence, option (a) is the correct answer.
Explain how organisisms as diffrent as diatoms and ciliates belong to the same kingdom protest group.
Answer:
Ciliates belong to the eukaryote supergroup Alveolata (alveolates). These protists are characterized by the presence of unit membrane-bound sacs or alveoli, underlying their plasma membrane (Figure 1). There are three major groups within alveolates – the dinoflagellates, the apicomplexans, and the ciliates.
Explanation:
a cheetah travels 20km west in an hour. The cheetah stops for another hour. Then the cheetah travels another 40km in two hours. What is the velocity of the cheetah
Answer:
The velocity of the cheetah is 15km per hour
Explanation:
First, you add the kilometers that the cheetah travels. Then you should get 60km. Then you put the distance the cheetah travels in a ratio to the hours it took for it to reach its point.
60:4
After that you simplify the ratio which should end up with the final ratio being:
15:1
✅The ratio means 15km each hour which is a rate that can be used in velocity. You can convert it further if you needed it to but I hope it helped you!
Examining a cell under a microscope, you conclude that it is a prokaryotic bacterial cell. What observation would correctly lead to this conclusion?
The cell lacks a nucleus
The cell lacks a cell membrane
The cell lacks genetic material
The cell lacks cytosol
Answer:
The cell lacks a nucleus.
You are studying the genes of fruit flies. Your partner claims
that each gene matches to a specific body part, such as the head, wings, and tail. How
a
would you argue for or against this claim?
This concept about genetics is wrong because major phenotypic traits are in general quantitative.
What is a quantitative trait?A quantitative trait is a phenotypic feature governed by the interaction between genes and the environment.
Quantitative traits involve the expression of many genes to shape a given phenotypic characteristic (e.g., head).
In conclusion, this concept about genetics is wrong because major phenotypic traits are in general quantitative.
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Which type of limiting factors does the seasonal drought in the Serengeti plains affect? density-independent factors density-dependent factors population-dependent factors population-independent factors
Answer:
Population dependant factors
Explanation:
The main factor behind the seasonal drought is lack of water or rainAs per the propulation increases the requirements of water also increases.Which creates scarcity of water .It also tends to seasonal droughtsAnswer:
population-dependent factors
Explanation:
The type of limiting factors the seasonal drought in the Serengeti Plains which are affected by the seasonal drought is population-density factors.
The drought affects the population who face survival with a lack of water, and depending on the number of people within the population, it raises questions whether the scarce availability of water is enough.
How can exercise improve your respiratory system?.
(I will give brainliest to whoever gives the best answer)
Shipping impacts everything from oil and waste in the water to greenhouse gases in the air. But it’s necessary for many aspects of our daily lives. What are some things you can do to help minimize these impacts?
Answer: Here are some things you can do to help minimize some of these impacts. Don’t smoke inside, Walk or cycle as much as possible to get where you need to go, Keep green plants in the home as they help to clean the air, Choose a cleaner commute, Combine errands and reduce trips. These are some ways to help out. Hope this was helpful!
Explanation:
The number of hours of daylight changes throughout the year, what other factor contributes to earth's seasons
Answer:
Angle of the sun's radiation
Explanation:
Exposure to pesticides or industrial chemicals _______. a. always has immediate and apparent side effects b. decreases the risk of developing genetically influenced diseases c. increases the risk of developing genetically influenced diseases d. has no effect on the risk of contracting genetically influenced diseases please select the best answer from the choices provided a b c d
Exposure to pesticides or industrial chemicals always increases the risk of developing genetically influenced diseases.
What are pesticides?Pesticides are chemical substances used to kill pest that attacks agricultural crops or domestic substances.
However, these pesticides and industrial chemicals can serve as mutagens that cause mutation when ingested by living organisms.
Mutations can utterly lead to genetically influenced diseases. Therefore, an exposure to pesticides or industrial chemicals always increases the risk of developing genetically influenced diseases.
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Gas Exchange and Transport Oxygen and carbon dioxide are exchanged across the walls of alveoli and capillaries. Chemical properties of blood and red blood cells allow for efficient transport of gases throughout the body.Carbon dioxide and oxygen are exchanged across capillary and alveolus walls.Hemoglobin binds with and transports oxygen that diffuses from alveoli to capillaries. It also increases the efficiency of gas exchange.Carbon dioxide is transported in the blood in three ways. Most combines with water and forms carbonic acid. Some dissolves in plasma. Some binds to hemoglobin and proteins in plasma.
For Questions 2-7, complete each statement by writing the correct word or words.
6. ___________ binds with oxygen and increases the blood's oxygen-carrying capacity.
Answer:
Hemoglobin is a protein found in red blood cells that is comprised of two alpha and two beta subunits that surround an iron-containing heme group. Oxygen readily binds this heme group. The ability of oxygen to bind increases as more oxygen molecules are bound to heme.
the area where an orginsim lives its life including the living and non living factors
Answer:
A Habitat
Explanation:
Because an area where an orginsim lives its life including the living and non living factors is a Habitat
Supplemental appendix is to a book as a ____________ is to a bacterial chromosome. genetically modified organism plasmid restriction enzyme bacterium
A supplemental appendix is to a book as a plasmid is to a bacterial chromosome.
What do you mean by Chromosomes?Chromosomes may be defined as a structure that is present inside the nucleus and carries genetic information about organisms.
Plasmids enhance the survival of bacterial organisms by assisting them with toxins production that kills other infectious organisms like viruses.
Therefore, a supplemental appendix is to a book as a plasmid is to a bacterial chromosome.
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During El Niño years, why is Christchurch, New Zealand's air temperature cooler than usual?
Answer:
Normal years as you can see that the energy transfers mostly from the ocean to the air. However during El Nino years, less energy transfered from the current air which makes Christchurch cooler.
Explanation:
.
Answer: During El Niño years, Christchurch, New Zealand's air temperatures cooler than usual because the prevailing winds that normally drive a warm current from the Equator are disrupted, which means less energy is transferred to New Zealand's air
What two system are affected first when a bee sting a person
Answer: Bee venom contains proteins that have an effect on the skin cells and system, leading to pain and swelling at the location of the sting, notwithstanding someone isn't allergic to the venom. In those that ar allergic to bee stings, the venom triggers a a lot of severe system reaction.
Explanation:
Solar cells convert ... directly into...
Answer:
Solar cells convert sunlight to electricity
Explanation:
I hope this helps (:
Why do you think bright feathers make a male duck a desirable mate?
Before you can calculate the estimated population size from a population sampling study, which of these is the MOST important data point to find?
Answer:
D
Explanation:
The average number of tagged individuals caught over all trials is the MOST important data point to find
Average no. of tagged individual caught over all trial.
The size of the sample is always less than the total size of the populationWhy is population size calculated?Knowing the size of a population of animals is important in making environmental decisions that would affect the population, but estimating the size of wild populations is extremely difficult.
What are the factors affecting population size?Amount of food.Amount of shelter.Amount of access of medication and medical care.Birth rate increase or decrease.Death rate increase or decrease.Amount of water.Hence, D option is correct.
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Yellow peas (Y) are dominant to green peas (y). Cross two heterozygous yellow pea plants. - What is the genotype ratio? What is the phenotype ratio?
Answer:
Explanation:
Genotype ratio --> 1 YY : 2 Yy : 1 yy
Phenotype ratio ---> 3: 1 (3 yellow, 1 green).
A dog uses pheromones to
Answer:
D. Mark its territory.
Explanation:
As a dog patrols its territory urinates. Male dogs in particular will urinate frequently, leaving pheromone-rich urine on objects to let other dogs know that the territory belongs to them.
What is the maximum sustainable yield for a resource?
Answer:
its the maximum amount that can be taken without depleting the resource or population over the long-term.
Explanation:
Choose one type of water pollution. How did the pollution happen? What negative effects does it have on the environment? What is one solution to it?
Oil spill or a discharge from pipe from a factory or sewage system. Since this is a single point of origin water pollution, this type of water pollution furnish itself to relatively easy remediation.
What is point source water pollution?
Point-source water pollution is the one type of water pollution which is easy to recognize because it generates from a single source or event and affects a specific area.
The negative effects of single point origin is deteriorating water quality which damage the environment, health conditions.
Destruction of biodiversity is another negative effect of water pollution depletes aquatic ecosystems and prompt unbridled proliferation of phytoplankton in lakes called as eutrophication.
The solution to reduce water pollution is reduce carbon dioxide emissions to prevent global warming and acidification of the oceans. Another is to reduce the use of chemical pesticides and nutrients on crops.
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Which do you think is a more- basic characteristic for classifying organisms?
(a) the place where they live.
(b) the kind of cells they are made of. Why?
Answer:
Classification based on living place is more basic as there can be wide variations in organisms living in a given place.
Answer:
Classification based on living place is more basic as there can be wide variations in organisms living in a given place.
a genetic trait that is hidden by another trait is called a
Answer:
a recessive allele is a genetic trait that is hidden by another trait
A CU graduate student studies the evolutionary drivers of choice in migration in one herbivore species that migrates between the Kalahari Desert and the Okavango Delta. We could consider the graduate student a/n:
Answer:
A behavioral ecologist is a person who studies the effects of behavior on the environment The impact of behavioral ecology is studied by behavioral ecologists.
biological process
dna y mrna z protien
Here, the letter "Y" refers to transcription, while the letter "Z" refers to translation.
What do you mean by Transcription?Transcription may be defined as a biological process through which a cell makes a copy of RNA (mRNA) from a segment of DNA. It occurs in the nucleus of the cell.
Translation may be defined as a biological process through which a cell makes proteins with the help of genetic information carried by mRNA. It occurs in the cytoplasm of the cell.
Therefore, here, the letter "Y" refers to transcription, while the letter "Z" refers to translation.
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What are some of the differences between crime scene investigations on TV and those that occur in real life? What are some of the similarities?
Answer:
People, not machines, perform fingerprinting. They do search for a particular amount of matches before taking into account a whole match.
Explanation:
as players speeds up, their kinetic energy will
Two species of marine organisms share the same habitat. organisms from one species attach themselves to the other species and use them to move around in the water. what form of ecological relationship is this?
a. inquilinism
b. phoresy
c. metabiosis
d. ectoparasitism
Phoresy is the name of the symbiotic ecological relationship where one organism attach to the other (Option B).
What is Phoresy?Phoresy is an ecological relationship where a given biological organism travels on the body of another organism.
The life forms in this type of ecological symbiotic relationship (phoresy) are not parasitic type.
In conclusion, phoresy is the name of the form of symbiotic ecological relationship above described.
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Homo erectus was likely the first hominid to successfully migrate to regions beyond Africa. Discuss how the biology and culture of Homo erectus led to its success on three major continents with varying environments.
Being the first designer of hand axes, stone fire, and other tools, Homo erectus was successfully established in other continents with varying environments.
What do you mean by Environment?The Environment may be defined as anything which is present in the surroundings of living organisms.
While making such tools for their use, they need proteins to survive and play their functional role. It leads to the mutation in their protein structure and behavior.
They used fire for cooking, heating their body during winter, and threatening away large predators.
Due to all these inventions, they successfully adapted to three major continents with varying environments.
Therefore, it is well described above.
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