Answer:
5
Explanation:
Oil is widely used because it...
Answer:
Oil and gas are used widely in modern life. Oil fuels the cars, trucks and planes that underpin modern economies and lifestyles. Nearly all pesticides and many fertilisers are made from oil or oil byproducts. Gas provides electricity and is also used for cooking, heating houses and buildings, and heating water.
Answer: because it is cheap, easily transported, has a high net energy, AND low cost
Which of the following occur in a maple tree growing in a temperate climate in response to increasing cold weather? Choose three correct
answers.
A. Auxin production stimulate one final growth spurt before winter arrives,
B. The chlorophyll in the leaves break down, revealing yellow and red pigments that had been masked by the green pigments.
C. Xylem and phloem fill with ions and organic substances that prevent freezing.
D. Meristems form thick scales to protect next year's buds from cold winter temperatures,
Answer: Option A, C and D.
Explanation:
Cold temperature affects plants that cannot adapt to it and can eventually lead to their deaths.
If the temperature, and therefore the metabolism, remain low for an extended period, plant quality will suffer, and death may occur. A period of cold weather may also alter plant growth, as when certain vegetables “bolt,” or produce seed stalks, in response to several days at low temperatures
But maple plants in temperate region has develop some characteristics or adaptions that help its survive cold temperatures. Maple plants can tolerate frost and light freezes for short duration because they are cool plants and development characteristics to do so.
Auxins in them stimulate one final spurt before winter. Their xylems and phloems are filled with ions that prevent freezing.
They have a thick meristems which form thick scales to protect next year's buds from cold winter temperatures,
How can you decrease the effort force needed to push a weight to the top of the ramp? A) cover the surface with carpet B) increase the length of the ramp C) increase the height of the ramp D) decrease the length of the ramp
Answer:
B) increase the length of the ramp
Explanation:
Less force is needed to move the object over a longer distance.
Answer:
You can decrease the effort force needed to push a weight up the ramp if you increase the length of the ramp. You could also decrease the height of the ramp.Lengthen the ramp, decrease the mass of the object, use a machine can you decrease the effort force needed to push a weight
Explanation:
A ramp is an example of an inclined plane. Think back to the example of the ramp and the moving truck. The ramp reduced the amount of force needed to lift the box by moving it over a greater distance. The longer an inclined plane, the less force is required to move an object upward.
Example of how organisms that were previously thought of as related are actually more genetically related to organisms outside their species?
Answer:
Explanation:
Examples includes the relationships between chimpanzees, gorillas and humans. It is actually believed that the chimpanzees are more closely related to humans. About 99% of ther genome is thought similar to humans while for the gorillas about 98%.
But then, it is thought that chimpanzees and gorillas should be closely related to each other than to humans, but comparison of their genomes has shown that across 15% of the gorillas genome, they share a closer relationship with humans than with chimpanzees.
How does digitizing images make it easy to transmit images?
Answer:
Digitizing means converting something into digital form.
Digitizing image means converting any image into digital format and the image will be organized into bits or pixel. The bits or numbers are then processed by a computer and output is generated as visible-light image,
There are several advantages of digitizing images and one cam easily tansmit images:
A digitizing image is saved in pixel or square, when computer processes teh pixel or square it gives the image. More number of pixel means better quality of image.The digitized image can be easily send or share in compressed form which takes less space in computer and without affecting quality.Digitized images helps to easily transmit real image without any blur effect.Hence, digitizing image is common now a days to transmit images of better quality in easy way.
Which is a
multicellular organism:
an atom, a molecule, a
cell, or a Komodo
dragon?
Answer:
Komodo dragon.
Explanation:
Animals, plants, and fungi are multicellular organisms
Which of the following statements are not true of carbohydrates?
A. Triglycerides are the most common type.
B. Monosacharrides, disacharrides, and polysacharrides are the most common types.
C. They are the most readily available source of energy for organisms.
D. Certain carbohydrates are enzymes or catalysts.
Answer:
this is very helpful to you
Explanation:
thank you
which example best describes how an X-ray machine works?
20 A QUESTIONS
O
Switching a flashlight on and off to transmit a message
0
Removing the batteries from a flashlight to keep a room dark
O Putting your hand in front of a flashlight beam to make a shadow
O
Shining a flashlight beam on a mirror to brighten a room
SUBMIT
Explanation:
putting hand in front of flash light
Answer: C
Explanation:
I just answered the question on a p e x
You are evaluating the effect of different types of fertilizers on plant growth. You plant 12 tomato plants and divide them into three groups, where each group contains four plants. To the first group, you do not add fertilizer and the plants are watered with plain water. The second and third groups are watered with two different brands of fertilizer. After three weeks, you measure the growth of each plant in centimeters and calculate the average growth for each type of fertilizer. Identify the independent variable, dependent variable, control group, and experimental group from this experiment?
Answer:
Control group - the plant group which has not received the fertilizers treatment.
Experimental group- the groups treated with different varieties of fertilizers.
Independent variable- amount of water and fertilizers
Dependent variable- growth of plants
Explanation:
A scientific experiment is performed in a way that the experimental samples are classified into the control and experimental groups. Also, the experiment involves various variables to be studied which can be classified as an independent variable and dependent variable.
In the given question, the experimental samples are:
1. Control group- The samples which are not provided with the variable being studied like the experiment is performed to test the effect of fertilizers and "the plant group which has not received the fertilizers treatment" can be considered the control group.
2. Experimental group- the samples in which the variable to be studied are provided with that is "the groups treated with different varieties of fertilizers."
In the given question, the variables are:
1. Independent variable- the variable which can be changed or modified or can change on their own like "amount of water and fertilizers" in the experiment.
2. Dependent variable- the variable which is being tested, can be measured and is dependent on an independent variable like the " growth of plants" in the experiment.
Which of the following might explain how complex viruses evolved?
© A. Icosahedral viruses reproduces with helical viruses.
OB. Mutations in viral genes gave rise to offspring with variations in their shape.
© C. Viral genes mutated while dormant to produce new variations.
OD. Viruses started infecting new host cells.
Answer:i just took a test w this on it n i put D
Explanation:
Which of these is true of fetal development by the end of the third trimester?
A. The placenta is absorbed by the uterus.
B. The fetus can survive outside the uterus.
c. All development is complete.
D. All growth is complete.
Answer:
B. The fetus can survive outside the uterus.
Explanation:
The third trimester starts in the wekk 28 (month 7 ) of fetal development and lasts until the birth pf baby, that is around week 40 (month 9) of pregnancy.
There are several changes occur in the thrid trimester of the fetal development such as hearing and visual has developed and the internal organs including the heart, lungs, intestines and stomach has developed enough.
So, at the end of fetal development of the third trimester as all the body organs have grown and developed, a fetus can survive outside the uterus.
The correct option is B.
Answer:
Option B
Explanation:
During the third trimester, the fetus continues to grow in weight and size however the body systems finish maturing. In fact, both mother’s body and the fetus continue to grow and change. Lungs, brain and kidneys keep maturing. Fetus position itself head-down and is 6 to 9 pounds in weight. Skull bones are soft but fetus become able to suck its thumb and cry. By 38 to 40 weeks, the lungs have matured fully . The end of third trimester marks the period when the fetus is ready for delivery. Hence option B is the correct answer
What is a purine and a pyrimidine? Name them.
Answer:
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
Explanation:
Which of the following groups of parrots is most likely in Hardy-Weinberg equilibrium?
A. A group with 50 DD parrots, 30 Dd parrots, and 20 dd parrots.
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
C. A group with 25 DD parrots, 50 Dd parrots, and 25 dd parrots.
D. A group with 50 DD parrots, 25 Dd parrots, and 25 dd parrots.
Answer:
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots is most likely in Hardy-Weinberg equilibrium.
What do you mean by Hardy-Weinberg equilibrium?The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation.
The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
For populations in the Hardy-Weinberg equilibrium, the equation connects allele frequencies to genotype frequencies. This equation allows us to compare a population's genetic structure in reality over time to the expected genetic structure.
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To maintain a healthy diet, you should try to eat a diet rich in:
O green vegetables
2% milk
red meat
fruit juice
Answer:
I am not sure whether or not this is a statement or a question, but a healthy diet would consist of more diversity. You could live off of that and maintain a healthy body, but it would not be recommended.
Explanation:
Answer:
green vegetables
Explanation:
PLEASE HELP!! ASAP!! I JUST NEED THE ANSWER!!! I WILL MARK YOU BRAINLIEST!!!
Which one of the following most accurately demonstrates the flow of energy in an ecosystem?
a
sun's light > predators > producers
b
producers > predators > sun's light
c
sun's light > producers > predators
d
predators > sun's light > producers
Answer:
The answer is C .
Explanation:
As the producer gets sunlight from the Sun to produce its own food.
Predators gets food from the producer.
Answer:
C.
Explanation:
Question 6 (1 point) ✓ Saved
Having 1 leader CAN help to get through a task and reduce arguing
True
False
Which of the following ecological levels is correctly paired with its description?
A) Organism - all of the species living in a given area
B) Community - a group of one species living in a given area
C) Population - the regions on Earth that can support life
D) Ecosystem - all of the living and nonliving factors in an environment
E) Biosphere - anything that meets all of the characteristics of life
The correctly paired ecological level with its description is the option D. Ecosystem - all of the living and nonliving factors in an environment, among given options.
An ecosystem is a geographic region or area where all the living factors including animals, plants, bacteria, and others interact with all the physical or non-living factors such as landscape, humidity, water, and many more.
Other given ecological level and their description:
Organism - an organism is the living being that is the simplest form of ecological level composed of organ systems.Community - It is a population with similar characteristics that live in a particular area.Population - a group of members of a particular species living and interbreeding within a given area.Organisms > Population > community > ecosystemThus, the correct answer would be option D.
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how are the DNA strands organized?
Answer:
double-stranded DNA are tightly looped, coiled, and folded so that they fit easily within the cell. ... In both eukaryotes and prokaryotes, this highly compacted DNA is then arranged into structures called chromosomes.
Explanation:
Why does the northern hemisphere experience Spring in March, while the Southern Hemisphere experiences fall?
Explanation:
because the tilt of the earth on its axis
Answer:
The Sun is directly overhead in the Northern Hemisphere in March The Southern Hemisphere receives more direct rays from the Sun in March. The Northern and Southern Hemispheres get the same amount of energy from the Sun in March.
Explanation:
i hope this makes sense and helps out a little bit :))
what is the main factor in the poor health of undeveloped countries?
a. too few doctors
b. more imports than exports
c. industrial pollution
d. infectious disease
the answer is A.Explanation:
The membrane that lines the thoracic cavity walls is the
Make a
claim about whether producers or primary
consumers would have a larger population
in an ecosystem. Support your claim with
evidence, and explain your reasoning.
Answer:
The producers have a larger population, The population gets smaller every level by 10%.
Explanation:
What is pulping
Help me please
Answer: to crush into a soft, shapeless mass OR a process that extracts fibrous material, cellulose, from wood or other raw material as a prelude to paper making
Hope this helps
Explanation:
Draw a cladogram that best represents the possible evolutionary relationship between species A, B, and C
And three animals that could match this phylogenetic tree.
Answer:
Monotremes, marsupials, and placentals are the three animals that could match this phylogenetic tree.
Explanation:
Monotremes, marsupials, and placentals belong from a common ancestor. Those organisms which have one common ancestor are also called monophyletic. These animals have some changes which occurs with the passage of time but most of characters are similar to each other. In placentals animals placenta is present while in Monotremes and marsupials this placenta is absent.
individuals joining a population is an example of
describe why you don't look like an elephant
Indicate whether or not the following functions are performed by the excretory system.
____excreting waste materials
____excreting blood
____maintaining pH balance
____maintaining body temperature
____maintaining salt balance
____maintaining hormone levels
____maintaining water balance
Answer:
1. yes
2. no
3. yes
4. yes
5. yes
6. no
7. yes
Only excreting blood is the function that is not performed by the excretory system.
What do you mean by the Excretory system?
The excretory system may be defined as the system that consists of a pair of kidneys, ureters, and urinary bladder. It removes wastes from the body.
Excreting waste materials, maintaining pH balance, maintaining body temperature, maintaining salt balance, maintaining hormone levels (aldosterone), and maintaining water balance are all the functions that are performed by the excretory system.
Therefore, only excreting blood is the function that is not performed by the excretory system.
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A recessive allele is expressed if there is no dominant allele present.
A) True B) False
Answer:
A) True
Explanation:
Comparing the skeletons of which of the following fish would
best show the evolution of a fish species?
a male fish and a female fish that could produce offspring
the same fish just before it received a cut and after it healed
a fish that lived recently and a fish that lived a long time ago
the same fish just after it hatched and when it was full-grown
Answer:
C. a fish that lived recently and a fish that lived a long time ago
Good luck with it :)
Which of the following lists the order of taxonomic levels from the largest to the smallest group?
domain, kingdom, class, order, family, phylum, genus, species
species, genus, family, order, class, phylum, kingdom, domain
class, family, order, domain, kingdom, phylum, genus, species
domain, kingdom, phylum, class, order, family, genus, species
Answer:
domain, kingdom, phylum, class, order, family, genus, species
Explanation:
which is d on edge 2021 :)
Domain, kingdom, phylum, class, order, family, genus, species is the correct order of taxonomic levels from the largest to the smallest group.
What is taxonomy?Taxonomy is a branch of science which deals with the classification of organisms on the basis of similarities and differences. It starts from domain and ends with species so we can say that domain, kingdom, phylum, class, order, family, genus, species is the correct order of taxonomic levels from the largest to the smallest group
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