Answer:
The model is called a double helix because two long strands twist around each other like a twisted ladder. The rails of the ladder are made of alternating sugar and phosphate molecules. The steps of the ladder are made of two bases joined together with either two or three weak hydrogen bonds.
Explanation:
What is a convergent boundary?
Answer:
A convergent boundary is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction. The subduction zone can be defined by a plane where many earthquakes occur, called the Wadati–Benioff zone.
Explanation:
What is the IMA of the following pulley system?
Answer: IMA = Fr/Fe
Explanation:
IMA stands for Ideal Mechanical advantage.
The IMA of pulley system can be defined as the ratio of output force to input force.
From the given pulley system,
The input force = Fe
The output force = Fr
Hence, IMA of the given pulley system,
IMA = Fr/Fe
2. Name a microbe that lacks a cell wall and would find hypotonic environments detrimental.
Answer:
I so I am also a bit confused, but I hope this could answer your question!
Explanation:
The bacteria possess a cell wall composed of peptidoglycan molecule formed by the amino acids called murine. The bacterial cell wall helps in the survival of the bacteria in some extreme condition like when placed in a hypotonic solution.
The hypotonic solution is formed when it has low solute concentration and high water amount when compared. When the bacterial cell will be placed in hypotonic solution then the water will move inside the cell down the concentration gradient as a result of which the bacterial cell will swell but will not burst.
This happens as the cell wall contains expansin protein which allows the cell wall to expand and provides rigidity to the cell.
Answer:
1. Photoautotroph
2.Protozoa
3. Passive transport uses no energy and molecules move from high to low concentrations. Active transport uses energy to move from low to high concentrations.
4. Synergism
Explanation:
Good luck on your assignment
Example on one of the 3 laws of motion
Answer:
Newton's First Law of Motion
Explanation:
A body at rest persists in its state of rest, and the body in motion remains in uniform motion along a straight line unless acted upon by a net external force.
Imagine that you are standing in a field and you see a group of butterflies. You notice an individual butterfly that looks significantly different from the others in the population. Its difference allows the butterfly to escape predation more efficiently than the other butterflies. How might this trait have arisen in the individual
Answer:
Explanation:
Mutation is a sudden change in the genome of an organism that is heritable.
Mutation occur due to a spontaneous change in the sequence of a gene, it can occur during DNA (deoxyribonucliec acid) replication, mitosis, meiosis. Some mutation are beneficial, some are detrimental while some could be deleterious. Mutation is a rare occurrence usually one in several hundreds or thousand
The unique traits that was reveal in the bird is due to mutation, it is beneficial because it kept it away from predation it is a rare case.
In the fourth century BC, Aristotle observed a phenomenon in which he saw a circular shadow on the Moon. He argued that Earth was a sphere based on this observation. What phenomenon caused the shadow on the Moon? *
a solar eclipse
a lunar eclipse
a spring equinox
a summer solstice
Answer:
a lunar eclipse
Explanation:
The shadow that Aristotle saw was caused by a lunar eclipse. At that time the sun, earth, and the moon nearly straight alignment caused the Earth's shadow to be reflected on the moon. This shadow is what ultimately led Aristotle to believe that the Earth was a sphere. This should not be confused with a solar eclipse which is similar but instead the sun, moon, and earth align in that order which causes the moon to completely block the sun to anyone on earth.
What is NOT true about the Archaea domain
It is believed to contain the oldest cells
It contains the bacteria that can be found in your intestines
It contains organisms that do not have a membrane bound nucleus
It contains organisms made of prokaryotic cells
Answer:
https://goo.gl/search/Weather
☀️ It's 65°F in Lo
I’ll mark brainliest if right
Answer:
b should be the correct answer
Explanation:
Answer:
i belive it is the second one TT and tt
Explanation:
i used the punnint sqaure thingy to help
(30 points!!!!)
Which scenario describes relationship of mutualism 
A. A polar bear catches a seal for dinner
B. Birds feed off the insects that are stirred up from the grasses as cattle move through
C. Yes oxpecker birds eat parasitic ticks off the backs of zebras
D. A taper latches it’s self in the intestines of a rat feeding off the nutrients eaten by the rat
Answer:
c i think and thats 15 points
c is the answer. i say this because the oxpecker is eating off of the zebra.
In which situation would being genetically
identical to the parent be an advantage
for an organism?
Answer:
Explanation:
Two offspring cells with the same genetic material as the parent cell. Two offspring cells with half genetic material as the parent cell
The respiratory rate times the tidal volume corrected for the dead air space in the lungs is the __________.
a. vital capacity
b. respiratory minute volume
c. pulmonary ventilation rate
d. alveolar ventilation rate
e. external respiration rate
Answer:
d. alveolar ventilation rate
Explanation:
Alveolar Ventilation rate (AVR) refers to the rate of airflow that reaches the alveoli which is available for gas exchange with the blood in a given unit of time. AVR is generally calculated as the amount in millimeters of air expired that equilibrates (i.e., exchanges) with alveolar gas per min unit (ml/min). AVR is affected by breathing frequency, tidal volume ( i.e., the normal amount of air between inhalation and exhalation), and the amount of dead space in the lungs.
In holly, serrated leaves are dominant to smooth-edged leaves, and red berries are dominant to green berries. Two holly plants heterozygous for both leaf edge shape and berry color are crossed together. Assuming that the two traits assort independently of one another, what proportion of the progeny will have serrated-edged leaves and green berries
CHGGYGYGYGUIYGUYGTUYGUYGUYG
Describe how the gonorrhoea pathogen causes disease after it enter the body
Answer:
Gonorrhea is transmitted through sexual contact with the penis, vagina, mouth, or anus of an infected partner. Ejaculation does not have to occur for gonorrhea to be transmitted or acquired. Gonorrhea can also be spread perinatally from mother to baby during childbirth.
How long can a bearded dragon spend on a car ride without uvb.
What is the difference between the weather conditions to form a hurricane and a tornado?
Answer:
difference between a hurricane and a tornado is there needs to be warm ocean water and moist, humid air in the region (hurricane)
The warm air rises through the colder air, causing an updraft. (in tornado)
What has to happen to atmospheric
nitrogen in order for it to become
available to plants?
Answer:
To be used by plants, the N2 must be transformed through a process called nitrogen fixation. Fixation converts nitrogen in the atmosphere into forms that plants can absorb through their root systems.
Explanation:
The trait for tall pea plants is (T) and the trait for short pea plants is (t). The trait for smooth pea plants is (R) and the trait for wrinkled is (r).Two plants are crossed producing a F1 generation of plants with 612 tall and smooth pea plants and 188 short and wrinkled pea plants.What would be the most likely genotype of the parental generation?
Answer:
P generation = TtRr × TtRr i.e both parents were heterozygote for both traits
Explanation:
This question involves two genes encoding the height and texture in pea plants respectively. The alleles for tall and smooth pea traits are dominant over the alelles for short and wrinkled traits.
According to this question, two plants are crossed to produce F1 offsprings as follows: 612 tall and smooth pea plants and 188 short and wrinkled pea plants.
First, we turn this derived number of offsprings into ratio by dividing by the smallest number (188)
612/188 : 188/188
3.25 : 1
Approximately; we can say this is 3 (tall and smooth) : 1 (short and wrinkled)
Based on this ratio, which was got by Mendel for his F1 offsprings when he crossed pea plants, the parental generation has a heterozygous genotype (TtRr).
How have human activities effected the air in earth’s atmosphere?
Answer:
Human activities have had a negative impact on Earth's atmosphere.
Explanation:
Human activities, since the Industrial Revolution, have gradually been having more and more influence on Earth's atmosphere. As more and more the economies have developed, the bigger and bigger the output of gases into the atmosphere. The gases that are released into the atmosphere are mostly greenhouse gases, but there are also some that are highly toxic.
This has contributed to a sharp increase in CO2 levels in the atmosphere, which is speeding up the process of global warming, and that can have devastating consequences for life on Earth. Also, some of these gases managed to cause huge damage to the ozone layer, the layer that protects us from UV radiation, and if the ozone is gone, every complex organism will be gone as well.
How might forest fires benefit the forest ecosystem?
A)
Forest fires clear dead tree limbs.
B)
Forest fires promote new growth.
C)
Forest fires enrich the soil.
D)
All of the above
Answer:
Answer is option D All of the above
Answer:
D
Explanation:
I chose D because forests are crowded with cut down tree stumps and polluted soil. And when the fire burns all of that unecesary stuff away you have more room than you had before to grow your trees bigger and better. And now you have enriched soil
3. The tundra, temperate deciduous forest, Desert, and Taiga are examples of which of the following?
biome
ecosystem
biosphere
population
How many grams of carbohydrate are in 2 cups of fruit juice ,1 cup of raw spinach,and 1 cup of mashed potatoes?
Answer:
Explanation:
According to a quick online search we can say that the items listed in the question have the following grams of carbohydates each.
2 cups of Fruit Juice which contains 498 grams would have a total of 66 grams of carbohydrates
1 cup of raw spinach only contains 1 gram of carbohydrates while its cooked counterpart would contain 7 grams per cup.
1 cup of mashed potatoes weighing a 242 grams would have a total of 35 grams of carbohydrates
The bullfrog and the Northern cricket frog both reside in eastern pine forests and use many of the
same limited resources. The relationship between these two amphibians is a form of -
O A predation
O B. competition
o c. parasitism
D.
gommensalism
When human undergo anaerobic respiration , they
When humans and other animals lack sufficient oxygen, they'll create ATP through a form of anaerobic respiration that produces lactic acid as a byproduct. ... Yes 'Anaerobic' means 'without oxygen. Cells will produce ATP through lactic acid fermentation only under when they lack sufficient oxygen.
Answer:
They experience sore muscles
Explanation:
Have a nice day lol <3
In the protein synthesis STEM case, which of the following mutations/errors created
a nonfunctional ADA enzyme (protein) which in turn caused deoxyadenosine to build
up?
A. tRNA error
B. Premature stop codon mutation
C. Active site mutation
Answer:
B. Premature stop codon mutation
Explanation:
What is the weigh of the air that is pressing down on us at sea level, in pounds per square inch ?
Answer:
Así como el agua del mar tiene un peso que actúa sobre los seres que lo habitan, también lo tiene el océano de aire que hay por encima de nosotros. Cargamos sobre nuestras espaldas casi una tonelada de aire, pero no lo notamos porque nos sostiene en pie una presión atmosférica equivalente, que se ejerce en todas direcciones.
La presión media del aire al nivel del mar es de 1.03 kilogramos por centímetro cuadrado. Esta presión disminuye rápidamente al aumentar la altura: a 3,000 metros se reduce a unos 0.7 kilogramos por centímetro cuadrado y a 8,800 metros, la altura del monte Everest, la presión es sólo de 0.316 kilogramos por centímetro cuadrado. (El aire es tan tenue en estas altitudes que los alpinistas tienen que llevar suministro de oxígeno.
Explanation:
Hopetown is farther from the equator than kamina. Which location has colder air temperature and why
Answer:
Hopetown
Explanation:
The farther from the equator the colder the air temperature. This is because the equator is the point on planet Earth that receives the largest amount of solar energy, so the regions that are above this line are the warmest in the entire planet. The further away from the equator a region is established, the less solar energy it receives, which is why the poles are so cold. In this case, we can say that the Hopetown temperature is colder than the kamine temperature.
according to newtons 2nd law of motion if the force acting on the object stays the same but the mass increases what is most likely to happen to the acceleration of the object?
A. aceleration will decrease
b. acceleration with increase
c. acceleratin will change but the speed and direction will remain constant,
d. acceleration will remain the same.
Answer:
D
Explanation:
I had this question before and this is the guaranteed answer
what is the general trend in the elk and wolf populations between 1990 and 2000?
Answer: Decrease
Explanation:
Which change will most likely occur in the future, based on the current consumption of ground water O A. The polar Ice caps will increase in volume. O B. Energy use in the United States will decrease. O C. Fresh water will become limited in the United States. OD. The speed of fresh water recycling through the water cycle will increase. HELP ASAP PLZ ITS TIMED
Answer: C. Fresh water will become limited in the United States.
Explanation:
were all going to die of dehydration in the future :)
Explicitly explain how a living organism obtains energy after eating.
Answer:
Explanation:
Tiny bits of the food you ate break down into a simple sugar called glucose. In your cells, energy from the sugar is released when oxygen and glucose combine in a reaction. The reaction produces water, carbon dioxide, and energy in the form of ATP. This chemical process is happening all the time in your cells.