Answer: okay
Explanation:
who do this please
How is a polar molecule different from a nonpolar molecule?
A.polar molecules have charges separated like poles of a magnet.
B. Polar molecules have charges evenly distributed across their poles.
C. Polar molecules are attracted to the lipids of the phospholipids of the plasma membrane.
D. Polar molecules are always larger than nonpolar molecules.
Answer: I think its b
Explanation:
if not a
A polar molecule is different from a nonpolar molecule in the fact that a polar molecule has charges separated like the poles of a magnet. Thus, the correct option for this question is A.
What is a Polar molecule?A polar molecule may be defined as a type of molecule in which one end of the molecule is slightly positive, while the other end is slightly negative. For example, water is an example of a polar molecule.
Being a polar molecule, water is separated by a positively charged hydrogen atom and a negatively charged oxygen atom. Polar molecules are asymmetric in nature and significantly contain lone pairs of electrons on a central atom or atoms with different electronegativities bonded together.
Non-polar molecules are symmetric with no unshared electrons. These molecules have resulted from an unequal distribution of electron density.
Therefore, polar molecules have charges separated like the poles of a magnet. Thus, the correct option for this question is A.
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Help!! it’s for a test!!
Identify the boundary separating watersheds?
A. Drainage basin
B.Valley
C. Plateau
D. Divide
How do scientists learn about the age of the solar system and its planetary bodies? Select the two correct answers.
a. comparing the composition of the gaseous planets to the rocky planets
b. using radiometric dating of meteorites
c. measuring distances between planets
d. analyzing impact craters on planetary body surfaces
Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
Using radiometric dating of meteorites and analyzing impact craters on planetary body surfaces are the two methods that tells us about the age of solar system.
The age of solar system and its planetary bodies can be find out by using radioactive dating techniques. Scientists have find out that the Solar System is 4.6 billion years old due to this technique. The other way to find out the age of solar system and its planetary bodies by counting the number of impact craters occurs on planetary body surfaces so these two methods provides information about the age of solar system and its planetary bodies
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In cats, the bones in the legs involved walking are very similar to the bones of whales’ flippers that are involved in swimming. These are examples of
Vestigial structures
Analogous structures
Endosymbiosis
Homologous structures
Answer:
These are examples of Homologous structures :3
Explanation:
:3
The bones in cats' legs that help them walk are extremely similar to the bones in whales' flippers that help them swim. It exemplifies homologous structures.
What are homologous structures?These are similar in structure and location but perform different functions. They result in divergent evolution.
What are analogous structures?These are similar in function but have different origin and structures. They result in convergent evolution.
What are vestigial structures?These structures do not perform any function and are present in a residual form in the body
What is endosymbiosis?It is a kind of relationship in which one organism resides inside the body of the other organism.
To learn more about homologous structures, divergent evolution, and convergent evolution here,
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Sickle-cell anemia is an autosomal recessive condition. This means that:
a. Two copies are needed for the condition to occur
b. Individuals can be a carrier for the condition
c. Families can go many generations without realizing that it occurs in their family
d. All of the above.
Answer:
tonto amarillo zjjzbzbznxbx
Which of the following sources of electricity DOES NOT employ the use of turbines?
A
Solar
B
Wind
C. Hydro
D.
Fossil Fuels
=========================================================
Explanation:
The sources of wind, hydro, and fossil fuels all use a turbine. So we can rule out choices B,C, and D.
A turbine is basically a wheel that spins to generate motion energy into electrical energy. Think of it like one of those stationary bicycles and the bike powers up a nearby lamp (the faster you pedal, the brighter the bulb gets). Another example that's similar to a turbine would be those flashlights where you can rotate a crank to have the light come on (which is useful for when the batteries are completely dead). The windmill blades act as a giant turbine that the wind spins around. Hydroelectric turbines are spun by the falling water. Fossil fuels are burned to create very hot steam which then powers a turbine. Even nuclear power uses turbines as well. With fossil fuels and nuclear energy, the idea is to heat up a vat of water and then turn that intensely hot steam into electrical energy through a turbine.
With solar panels however, the electrical energy is converted through a process of sunlight interacting with the solar cells that doesn't require a turbine. This explains why you can use solar panels to power up devices such as phones or laptops without having any moving parts. All you need is a flat set of solar panels.
There is a slight variation of solar power known as "concentrated solar power", aka "concentrated solar thermal", where solar panels are not used. Instead, a vast array of mirrors are set up to aim the suns rays at a very specific narrow area. Think of it like a magnifying glass to focus the suns rays. The place where the narrow beam hits has a very high temperature. This high temperature heats up water to turn to steam, and the process from here is effectively the same as fossil fuels or nuclear energy. So that means turbines are involved with concentrated solar power. I'm assuming your teacher is specifically referring to solar panels when they mentioned choice A.
Anatomy and physiology chapter 1
Answer:
whats the question?
Explanation:
i dont see it
Please help I'm in a test...
The process that transport rocks, soils, and sediments to a different location is called _____.
A Weathering
B Erosion
C Deposition
Answer: B
Explanation: I had a test with this question and got it right
A geneticist crossed tall pea plants and obtained 971 tall pea plants and 315 short pea plants in the F, generation.
TT
What were the genotypes of the parents that produced the offspring in the Punnett square shown, it T is the allele for tall, and t is the allele
for short?
ATT
BTT
D. TITI
Answer:
BTT Esa es la respuesta gracias
Answer:
B. TT
Explanation:
I took the test
HELP ME HURRY PLEASE
Answer:
people think science tests should be more hands on opposed to sitting down in on spot for hours. I think it should be hands on so kids can remember and have a fun time doing so.
Explanation:
(go into more depth and add more words.)
A type of cellular transport is shown.
ATP
Which description best identifies this type of cellular transport?
Answer:
I would say A
Explanation:
I looked at my ap bio notes
Which statement best describes cellular respiration?
Cellular respiration is a process that produces ATP from NADP
Cellular respiration is a process by which all organisms convert sugar into kinetic
energy
Cellular respiration is identical to photosynthesis
The products and reactants of cellular respiration are the same
What are some similarities and differences between the two broad categories of cells
Answer:
Prokaryotes Vs. Eukaryotes
- Prokaryotes have a nucleoid, eukaryotes have a nucleus
- Prokaryotes do not have membrane bound organelles, eukaryotes do have membrane bound organelles
- Prokaryotes have a cell membrane, and so do eukaryotes
- Prokaryotes have ribosomes, and so do eukaryotes
What percentage of a persons genes come from each parent?
Answer:
50% from mother 50% from father
Explanation:
Hello kassidyy00, the answer you have is correct. When a baby is consummated it will receive half of its genes from its father and half from its mother. This is due to the 22 chromosome pairings known as “autosomes” each being made up of 2 single stranded DNA segments of equal length.
Hope this helps!
-HM
_______ are created through the process of translation
1. lipids
2. proteins
3. nucleus acids
4. carbohydrates
Answer:
2 proteins
Explanation:
The protein synthesis occurs in two steps, namely transcription and translation
I need help now!!
Which of the following best describes why a cell would not be able to reproduce if its
nucleus were damaged?
A. The nucleus is responsible for creating the sugars needed to perform cell division.
B. The nucleus is responsible for creating the energy used to perform cell division.
C. The nucleus is responsible for housing the genetic information needed for cell
division.
D. The nucleus is responsible for letting the materials in that are needed for cell division.
Answer:
B
Explanation:
I don't know...but I think the answer is B
*FIRST CORRECT GETS BRAINLIEST AND 25 POINTS*
Answer:
needs more information to answer
Sexual and asexual reproduction allow for transfer of genetic material to offspring. Which
of the following is true regarding how asexual reproduction differs from sexual
reproduction?
1.Asexual reproduction is for changing environments, sexual reproduction is for stable
environments
2.Asexual reproduction produces genetically identical offspring; sexual reproduction
produces genetically different offspring.
3.Meiosis is a form of asexual reproduction; mitosis is a form of sexual reproduction
4.Asexual reproduction is for plants; sexual reproduction is for animals,
answer: asexual reproduction produces genetically identical offspring; sexual reproduction produces genetically different offspring
explanation:
asexual reproduction is when a single organism uses its own DNA as a template to create another organism (through binary fission, fragmentation, budding, etc.) that is genetically identical
sexual reproduction is when two organisms create a combination of DNA (through a mixing of genes during meiosis, reproduction, etc.) to create an organism that is genetically different
Which of the following best describes the role of roots and stems in a plant?
Roots and stems transport water and minerals to the leaves so that photosynthesis
can occur.
Roots and stems help the plant move and keep cool in hot weather.
Roots and stems transport water and minerals to the flower to attract bees so that
pollination can occur.
Roots and stems are where photosynthesis takes place
Answer:
Roots and stems transport water and minerals to the leaves so that photosynthesis can occur
Explanation:
HELP PLZZ
What plant process produces water, carbon dioxide, and energy?
cell division
photosynthesis
growth
respiration
Answer:
Photosynthesis
Explanation:
Remember it by thinking about the photosynthesis episode of spongebob
Answer:
photosynthesis
Explanation:
i had a test like this
Comet tails _____.
always point toward the sun
are only seen when comets are near the sun
are caused by intense air friction
are made of carbon and magnesium
Answer:
always point toward the sun
Explanation:
Answer:
are only seen when comets are near the sun
Explanation:
The characteristic "tail" of a comet is only visible when it is close to the sun. The center of a comet is a solid mass, called the nucleus, made of ice, frozen gas, rock, and dust.
help fast with homework
Which of the following characteristics evolved as a result of the evolution of a larger brain size?
adaptive human body type
use of symbols
walked upright
use of tools to get food
Answer:
blood
Explanation:
use food can help my brain or water can help work my brain use blood
Answer:
use of symbols
Explanation:
A larger brain allows for more intelligence. To use symbols, you need more intelligence
Low genetic variation or a lack of genetic diversity increases the risks of extinction. Scientists have observed this in cheetah populations. Captive feline cheetahs at a breeding colony for large cats were exposed to a viral pathogen that killed roughly 50% of the cheetah population. None of the lions in the large cat population developed symptoms or were affected. Scientists know that lions have a more extensive genetic variation, which means they had the gene variations in their immune system necessary to fend off the disease. Describe the evidence that supports how the cheetah population is likely experiencing a lack of genetic diversity. Suggest one way humans can intervene to increase genetic diversity. Predict a potential adaptation that could result from this increase in diversity. (Please be longer than a few sentences)
Answer:
Because the pathogen killed off 50% of the population that means half of the population was susceptible to the disease, meaning that genetic variation is incredibly low because 50% of the species is the same. Humans can fix this by interbreeding cheetahs with different traits, or even breed them with a different species that is compatible for reproduction.
Explanation:
Half of the population was susceptible to the disease since the pathogen killed off 50% of the population, which means that genetic variation is extremely minimal because 50% of the species are the same.
What is genetic diversity?Genetic diversity refers to the total number of genetic traits that make up a species' genetic composition.
It varies greatly depending on the number of species present as well as across species, and it can be linked to a species' longevity.
A group that is genetically homogeneous and exposed to a new pathogen without the gene variant to stop the disease could go extinct.
By performing a skin graft surgery where a portion of skin from a donor cheetah is given to a recipient cheetah, which is easily accepted if it is an inbred population, evidence to support the loss of genetic diversity of the cheetah population can be gained.
By implementing captive breeding programs, encouraging females to breed with various males in order to produce offspring with various traits, protecting the natural habitat, fostering coexistence of the cheetah species with other species and humans.
Also reducing competition for the same food source, we as humans can take action to increase the genetic diversity in the cheetah population.
Thus, these are the evidence that supports how the cheetah population is likely experiencing a lack of genetic diversity.
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Which one of the following is not made of calcite?
a. chert
b. travertine
c. chalk
d. coquina
A type of behavior an organism is born with is a(n) response. O A. learned B. synthetic O C. innate OD. preventative
Answer:
(C) Innate response.
Explanation:
An organism's innate response is the one that it is born with. Instinct. Something that comes... from within it. :)
how does latitude affect a climate zone
The broad waves of related waves is called: : Radiation Spectrum Force Energy please help
Answer:
The asnwer is spectrum
Explanation:
What r the types of allergy??????
Answer:
of Allergies
Drug Allergy.
Food Allergy.
Insect Allergy.
Latex Allergy.
Mold Allergy.
Pet Allergy.
Pollen Allergy.
Explanation:
Answer:
food, flowers, touch, dirt etc/
Explanation: