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Compare cell membrane and the integumentary system.
They both...
When two or more elements are chemically combined to form
a new pure substance, we call that new substance a ?
The plasma membrane is considered a mosaic because of the presence of many _____________ doing different jobs.
Why is soil considered a non-renewable resource?
A)Soil can only be formed by natural processes over hundreds or thousands of years.
B)There is a limited quantity of nutrients in soil.
C)Soil is no longer made in nature and can never be replaced.
D)The cost of creating soil is too high for it to be a reasonable option.
Answer: A)Soil can only be formed by natural processes over hundreds or thousands of years.
Explanation: Soil can take 500 years or more for an inch of topsoil.
Answer:
A is the answer my friend.
Bessel's Star (61 Cygni) was the first star whose distance was calculated using the parallex method. The star is known to make an angle of 570 milliarcseconds between two opposite points of the Earth's orbit. Using this information, calculate the distance to the star.
Answer:
The parallax formula states that the distance to a star is equal to 1 divided by the parallax angle, p, where p is measured in arc-seconds, and d is parsecs.
d = 1/p
Explanation:
Parallax is a method of using two points of observation to measure the distance to an object by observing how it appears to move against a background. One way to understand parallax is to look at a nearby object and note its position against a wall. If you look with just one eye, then the other, the object will appear to move against the background.
Because your eyes are separated by several centimeters, each eye has a different perspective of where the object is relative to the background. The closer the object is, the more it appears to move relative to the background. This is true in astronomy as well, but on a much larger scale.
In astronomy, the distances to other stars is too great to measure using two objects on the Earth's surface. Lucky for us, the Earth itself moves. If we made two observations of the same star on opposite sides of the Earth's orbit, we would have a separation of 2 astronomical units, or AU. One AU is the average distance from the Sun to the Earth.
This is enough to get a noticeable angle, α, between the star's two apparent locations. In the image above, we can see that by cutting α in half, we get a right triangle where one leg is the distance between the sun and the other star. Lets let 1/2α=p. We can use tan p to find the distance to that star.
tan p = 1AU/p
Since the star will be very far away, we can make the assumption that
tan p is about equal to p. That simplifies our parallax formula to;
p = 1AU/d , or in other words, d = 1AU/p
Astronomical units are not the most convenient units to work with, though, so instead we define a parsec to be the distance to a star that shows 1 arc-second of parallax angle. Our formula then becomes;
d = 1/p parsecs
ANSWER:
!!Where p is measured in arc-seconds. 1 parsec is about 3.3 light years.!!
HOPE THIS HELPS
(the pics are part of my answer so when u read through youll see where they are supposed to be put)
have a good valentines day! <3
Two cats are both carriers for the trait (Ee). How many kittens from this cross will have folded ears?
Answer: Ee x Ee= EE, Ee, Ee, ee. If folded ears is the recessive trait then it will be 1/4 of the kittens with folded ears.
Answer:
1/4 cats will have folded ears.
Explanation:
folded ear trait is a recessive trait in cats. when two cats which are carriers for this recessive trait crossed 3/4 normal and 1/4 folded ear cats will produced.
Choose all answers that apply.
Which are characteristics of life?
O Has DNA
O Can move
O Can Reproduce
Has Cells
I’ll mark brainiest if your right need ASAP
Answer:
the tempature
Explanation:
Cross a male TTBb x with a female TtBb. How many gamete combinations do they have?
Answer:
Hope this helps:)
https://adamsbiologyblog.weebly.com/uploads/2/3/0/7/23074860/ch_11_and_14_study_guide_key.pdf
Why are groups of small cells better than one large cell at moving material in
and out?
A. They have a smaller volume.
B. They have a greater surface-to-volume ratio.
C. They have a lower surface-to-volume ratio.
D. They have more cell structures.
SUBT
Answer:
B option is correct.
Explanation:
they have a greater surface to volume ratio.
Why are niches important to
ecosystems?
Answer:
Ecological niches allow species to exist in their environment. Under the right conditions, the species will thrive and play a unique role. Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.
If two species occupied the same niche, they would be competing for the exact same resources. The competitive exclusion principle states that one of the species would drive the other to extinction.
Explanation:
why is cloning animals such a high failure rate?
Answer:
The baby not fully developing
what is a distinguishing characteristic of primary succession?
-
primary succession only occurs on bare rock
or
primary succession requires soil
Answer:
primary succession only occurs on bare rock
Explanation:
Answer: primary succession only occurs on bare rock
Explanation:
When North America is facing the sun what season are we experiencing in Louisiana? When North America is completely turned away from the sun what season are we
experiencing in Louisiana?
Posted today at 8:22 am
Answer:
we r expirencing eggplant season
Explanation:
how metal and bamboo instruments are played?
How is it possible for different cell types to form if every cell in an organism contains the same genetic code?
Over time, what will to happen to the populations of light and dark moths on light trees?
Answer:
Explanation:white moths will be spotted easier and killed and the population would drop while the dark moths population will rise
The population of white moths at the light tress will increase over time with the process of natural selection.
The trees are a light color population. Dark moths are unable to camouflage with the tress, while white moths camouflage with the trees.
What happens to white moths?The white and black moths at the tree are an example of a tree ecosystem. The moths are the target for the predators.
The process of natural selection is the evolutionary process with the survival of the fittest. The species that are able to survive in the inappropriate conditions are able to evolve.
In the tree ecosystem, the white moths are camouflaged with the trees. They will not be an easy target for predators. They will survive with the theory of natural selection.
The black moths are not camouflaged with the tree ecosystem. They are easily identified by the predators and are killed.
Thus, white moths are the fittest and with natural selection, they evolve.
Therefore, the population of white moths at the light tress will increase with natural selection.
Learn more about natural selection, here:
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b Taking into account the composition of the hair shafts, do you think these vitamins and nutrients will be beneficial? Why
or why not?
Organisms are placed into kingdoms based on...
Their type of
help with biology pleasee
Global warming is causing atmospheric CO2 levels to increase, which is expected to cause ocean acidification Which of the following is NOT a consequence of increased atmospheric CO2 levels?
a) decrease in the concentration of bicarbonate ions in the oceans
b) increase in the amount of carbonic acid formed in the oceans
c) decrease in the amount of calcium carbonate produced in the oceans
d) decrease in the concentration of carbonate ions in the oceans
e) increase in the concentration of hydrogen ions in the oceans
Answer:
This might not sound like much, but the pH scale is logarithmic, so this ... The ocean absorbs about 30% of the carbon dioxide (CO2) that is released in the atmosphere. As levels of atmospheric CO2 increase from human activity such as burning ... track and forecast ocean acidification, warming and other important ocean
An increase in atmospheric CO2 levels does not cause a decrease in the concentration of bicarbonate ions in the oceans.
WHAT IS OCEAN ACIDIFICATION?
Ocean acidification is the decrement in pH level of the ocean due to the absorption of carbon dioxide (CO2). Carbon dioxide is a gas that reacts with water to form carbonic acid (H2CO3), which makes the water acidic or have a low pH.CONSEQUENCE OF CO2 ABSORPTION IN OCEANS:
An increased CO2 level in the atmosphere means that the rate at which the ocean will absorb the atmospheric gas will it increase. Since CO2 is said to make the ocean acidic, the following will likely occur to increase acidity of the ocean:
Increase in the amount of carbonic acid (H2CO3) formed in the oceansDecrease in the amount of calcium carbonate (CaCO3) produced in the oceansDecrease in the concentration of carbonate ions (CO32-) in the oceansIncrease in the concentration of hydrogen ions (H+) in the oceansN.B: Bicarbonate ion (HCO3-) causes acidity, hence, the decrease of bicarbonate ions cannot be a consequence of ocean acidification.
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How do moon phases occur and their different lengths ?
Answer:
These differing shapes of illumination are referred to as the ‘phases’ of the Moon, which occur in a perpetual cycle over a 29.5-day (synodic) period. There are eight main identifiable phases which follow each other sequentially as the Moon orbits the Earth according to the changing relative positions of the Earth, Moon and Sun.
Explanation:
so yeah
How do plasmodesmata affect the individuality of the cells?
Answer:
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Plasmodesmata play roles in both cellular communication and in molecule translocation. Plant cells must work together as part of a multicellular organism (the plant); in other words, the individual cells must work to benefit the common good. Therefore, communication between cells is crucial for plant survival.
list 2 object that produce gamma rays in space
Answer:
object number 1: SOURCES OF GAMMA RAYS
object number 2: COMPOSITION OF PLANETS
Explanation:
Sources of Gamma Rays: Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes. On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.
Composition Of Planets: Scientists can use gamma rays to determine the elements on other planets. The Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) Gamma-Ray Spectrometer (GRS) can measure gamma rays emitted by the nuclei of atoms on planet Mercury's surface that are struck by cosmic rays. When struck by cosmic rays, chemical elements in soils and rocks emit uniquely identifiable signatures of energy in the form of gamma rays. These data can help scientists look for geologically important elements such as hydrogen, magnesium, silicon, oxygen, iron, titanium, sodium, and calcium.
The polysaccharide that is responsible for the strong structural nature of plant cell walls is
The polysaccharide that is responsible for the strong structural nature of cell walls of plants is cellulose.
The cellulose is an organic molecule that is made up of several units of glucose monomer. The cellulose which make up a large percentage of plant cell walls are composed of a network of several units of glucose monomer that are tightly linked together.
The cellulose, as well as lignin and hemicellulose, which constitutes the tensile fibers in the cell walls of plants, is the polysaccharide responsible for the strong structural nature of plant cell walls.
Learn more about Cellulose here:
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Explain how respiration and cellular respiration are not
the same thing
Answer:
reathing involves inhale of oxygen from the atmosphere into the lungs and exhale of carbon dioxide from the lungs into the atmosphere ; whereas cellular respiration involves breakdown of glucose into carbon dioxide and water in living cells, releasing energy.
Explanation:
what is the grid method best used for
Answer:
The grid method is best used in large crime scenes such as fields or woods.
Explanation:
Several searchers, or a line of them, move alongside each other from one end of the area to be searched to the other.
name 5 types of nutrients
Answer:
They are categorized as proteins, fats, carbohydrates (sugars, dietary fiber), vitamins, and minerals, and perform the following vital functions.
Need as soon as possible
Answer:
Either B or D, but mostly B.
Please tell me if I'm wrong!! :3
Why did the orchid mantis evolve to look the way it does? Can you answer in race please?
Answer:
Beautiful Huntresses: Scientists Explain Why Mantises Evolved To Resemble Orchids : The Two-Way Typically, when insect females evolve to become larger than males, it's in order to produce more offspring. But female orchid mantises evolved to look like flowers for a sinister reason: to hunt prey.
Answer:
Beautiful Huntresses: Scientists Explain Why Mantises Evolved To Resemble Orchids : The Two-Way Typically, when insect females evolve to become larger than males, it's in order to produce more offspring. But female orchid mantises evolved to look like flowers for a sinister reason: to hunt prey.
Explanation: