Answer:
Geocentric ModelEarth is at the center
Includes five planets.
The orbits of the planets are circular,
Heliocentric ModelThe Sun is at the center of the solar system.
The orbits of the planets are elliptical
Includes eight planets.
The solar system
Explanation:
The main difference between the heliocentrical and geocentrical model is that in the first one, the Sun is in the center and the planets are around it, while in the second model, the Earth is in the center and the Sun, the moon, and the planets are around it.
Also, the geocentrical model stated that there were five planets, Mercury, Venus, Mars, Jupiter, and Saturn. These planets had circular orbits. In other words, they have a circular motion around the Earth, and this one was still in the center of the system.
In the heliocentric model, there are eight planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, and they all rotate in elliptical orbits around the Sun. The Heliocentric model is also called the solar system since its central star is the Sun, and the planets are around it.
Runoff from farms that use fertilizers is entering a small lake. This will most directly affect the lake by causing
A the lake to dry up.
Balgae to grow in the lake.
water in the lake to become solid.
D
the lake to become deeper.
Answer:
B. algae to grow in the lake.
Explanation:
Because it is the "Correct Answer"
In horses, black coloring (B) is dominant, and chestnut coloring (b) is recessive. What percentage of offspring are expected to be chestnut?
Answer:
This question is incomplete, the complete question is as follows:
- In horses, black coloring (B) is dominant, and chestnut coloring (b) is recessive. A homzygous black horse crosses with a chestnut horse.
What percentage of offspring are expected to be chestnut?
The answer is 0%
Explanation:
This question involves a gene coding for color in horses. The allele for black coloring (B) is dominant over the allele for chestnut coloring (b) is recessive.
According to this question, if a homzygous black horse (BB) crosses with a chestnut horse (bb), the following gamete will be produced by each parent;
BB - B only
bb - b only
Using these gametes in a punnet square, the following proportion of offsprings will be produced:
Bb, Bb, Bb, Bb
All of these offsprings are phenotypically black colored although heterozygous in genotype. Hence, 0% of offspring are expected to be chestnut.
Answer:
its 0% love
Explanation:
NEED HELP ASAP BIOLOGY 20 POINTS
Answer:
It Is Number 3 My Grandmother Is A Doctor
Explanation:
Trust Me Its Number 3 She Has Been Working For 15 years btw
can someone explain it or maybe give me the answer, im desperate :)
A mutation in the gene coding for a single-polypeptide enzyme results in the substitution of the amino acid serine, which has a polar R group, by the amino acid phenylalanine, which has a nonpolar R group. When researchers test the catalysis of the normal enzyme and the mutated enzyme, they find that the mutated enzyme has much lower activity than the normal enzyme does. Which of the following most likely explains how the amino acid substitution has resulted in decreased catalytic activity by the mutated enzyme?
A The substitution decreased the mass of the enzyme so that the mutated enzyme binds more weakly to the substrate than the normal enzyme does.
B The substitution altered the secondary and tertiary structure of the enzyme so that the mutated enzyme folds into a different shape than the normal enzyme does.
C The substitution caused many copies of the mutated enzyme to cluster together and compete for substrate to bind.
D The substitution caused the directionality of the enzyme to change such that the amino terminus of the normal enzyme has become the carboxy terminus of the mutated enzyme.
Answer:
Bats have few natural predators -- disease is one of the biggest threat. Owls, hawks and snakes eat bats, but that’s nothing compared to the millions of bats dying from White-Nose Syndrome. The disease -- named for a white fungus on the muzzle and wings of bats -- affects hibernating bats and has been detected in 33 states and seven Canadian provinces. More than 6.5 million bats have died so far from White-Nose Syndrome. Scientists are working to understand the disease. You can help -- avoid places where bats are hibernating, and if you do go underground, decontaminate your clothing, footwear and gear.
Explanation:
the answer is c
disadvantages of parthenocarpy to the plants
Answer:
-Seedless fruits can not be used to produce new progeny of any plant.
-Parthenocarpy is undesirable in nut crops because the seed is the edible part.
-Quality and Size of fruits get changed in case of Parthenocarpic fruits as compared to the normal state.
Explanation:
The reading passage claimed, “trees are essential for all life in the stream.” Choose all the benefits that trees provide to streams.
1. Trees provide essential nutrients from dead leaves
2. Trees cause sediment to erode from the land and wash into streams
3. Trees provide shade to help keep cool water temperatures in the stream.
4. Trees decrease dissolved oxygen levels in the water
5. Trees filter stormwater run off which helps keep harmful pollutants out of the stream.
6. Trees provide habitat to wildlife.
Answer:1,3,5,6
Explanation:
The benefits that trees provide to streams are Trees provide essential nutrients from dead leaves, Trees provide shade to help keep cool water temperatures in the stream, Trees filter stormwater run off which helps keep harmful pollutants out of the stream and Trees provide habitat to wildlife.
How important is the tree to life on the planet?It is the trees that increase the humidity of the air, prevent erosion along the rivers, carry out photosynthesis resulting in the production of essential oxygen for living beings, provide shade and manage to reduce the temperature, reduce air pollution, serve as a shelter for species animals, contributing to respiration.
Trees have numerous health benefits. They absorb carbon dioxide (CO2) and release oxygen, improving air quality and humidity, and can even absorb noise and noise in the city.
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¿Cuáles son los usos beneficiosos del fármaco que utiliza la comunidad médic?
. What is the mechanism(s) that the drug uses?
Answer:
In pharmacology, the term mechanism of action (MOA) refers to the specific biochemical interaction through which a drug substance produces its pharmacological effect. A mechanism of action usually includes mention of the specific molecular targets to which the drug binds, such as an enzyme or receptor.
HELLPP I NEED THE ANSWER NOW!!!!!
Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?
A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density.
D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density.
Answer:
B
Explanation:
The water has become polluted,as evidenced by the decrease in the number of bloodworm species
Does hereditary deafness affect the person's lifespan.
Answer: Yes, yes it does
Answer:
No, it will just make it harder.
How many half lives would have passed if only 6.25% is still radioactive?
Answer:
It will take 4 half lives
Explanation:
Hope this helps
:)
Even though the finches on the various Galapagos Islands require different biotic and abiotic factors for their survival, these finches would most likely be grouped in the same
a) kingdom, but found in different ecological niches
b) population, but found in different ecosystems
c) species, but found in different habitats
d) species and found in the same biosphere
Answer:
C
Explanation:
It is C because the question says they are all finches, they just need different habitats/living conditions
Finches are most likely to grouped in the same species, but found in different habitats.
They are well known for their remarkable diversity in beak form and function.Darwin postulated that beak of an ancestral species had adapted over time to equip the finches to acquire different food resources.Why are Darwin’s finches important?Species diverge in mate preference before genetic incompatibilities evolve.Different populations can function as biological species before they would be recognized as species solely in the basis of genetic distinctness.With the help of the finches Darwin solidify the idea of natural selection.To know more about Darwin finches here
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Do plants absorb nitrogen?
Answer:
No, not absorb nitrogen.
yes. plants absorb nitrogen through soil
give reason an Empty bottle floats on the surface of a water while a bottle filled with water flows inside the liquid
Answer:
The empty plastic bottle floated on water. The bottle filled with water sank because the weight of empty plastic bottle is less than the weight of water displaced it but when the bottle is filled with water its weight becomes more than the weight of water displaced by it.
( please mark to brainliest)
what do you think? So why don't t apes walk upright like us?
Apes were basically monkeys. They walk on their hands and feet but crouched. There's a bunch of theories saying that humans evolved from apes. As apes evolved, they started walking upright.
UNIT TEST!! Help!! :C
1. Which statements describe gene therapy? Check all that apply.
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA.
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
2. A fruit fly has black eyes. Having red eyes is a dominant trait (R) and having black eyes is a recessive trait (r).
Which describes the fruit fly’s genotype and phenotype?
A.)genotype: black eyes
phenotype: Rr
B.)genotype: black eyes
phenotype: rr
C.)genotype: rr
phenotype: black eyes
D.)genotype: Rr
phenotype: black eyes
Thank you sm for helping <33
Answer:
for number one i got ☐ It involves the modification of DNA
☐ It attempts to replace a mutated gene with normal DNA.
☐ It does not always cure patients who use it.
FOR NUMBER TWO I GOT:
D.)genotype: Rr
phenotype: black eyes
plz mark brainliest!!!
Answer:
☐ It cures all cases of cystic fibrosis.
☐ It involves the modification of DNA. √
☐ It is easy to apply to all cells affected by the disorder.
☐ It attempts to replace a mutated gene with normal DNA. √
☐ It does not always cure patients who use it. √
Explanation:
Convection in the troposphere causes
•wind •ocean currents •both wind and ocean currents •neither wind nor ocean
Explanation : The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles ) causes convection currents, large-scale patterns of winds that move heat and moisture around the globe. As air rises, expands, and cools, water vapor condenses and clouds develop.
GIVING BRAINLIEST TO CORRECT ANSWER!
What would cause water to turn from a gas to a solid?
A) Take energy out of the system
B) Put energy into the system
C) Increase the water’s mass
D) None of the above
Answer:
A
Explanation:
It takes or releases energy during phase change
Which of the following is the best description of biotechnology? ((NO LINKS PLEASE))
A.) Biotechnology is using genomics to make informed decisions.
B.) Biotechnology is the use of living organisms and life’s processes for practical purposes.
C.) Biotechnology is a branch of science that does not pose any risks.
D.) Biotechnology is the manipulation of genes.
Answer: A
Explanation:
2. Energy flows through Earth's spheres and changes along the way. Describe how energy is conserved in these systems. (2 points)
Answer:
Teaching about energy and physical processes is supported by 7 key concepts:
2.1 Earth is constantly changing as energy flows through the system. Geologic, fossil, and ice records provide evidence of significant changes throughout Earth's history. These changes are always associated with changes in the flow of energy through the Earth system. Both living and non- living processes have contributed to this change.
2.2 Sunlight, gravitational potential, decay of radioactive isotopes, and rotation of the Earth are the major sources of energy driving physical processes on Earth. Sunlight is a source external to Earth, while radioactive isotopes and gravitational potential, with the exception of tidal energy, are internal. Radioactive isotopes and gravity work together to produce geothermal energy beneath Earth's surface. Earth's rotation influences global flow of air and water.
2.3 Earth's weather and climate are mostly driven by energy from the Sun. For example, unequal warming of Earth's surface and atmosphere by the Sun drives convection within the atmosphere, producing winds, and influencing ocean currents.
2.4 Water plays a major role in the storage and transfer of energy in the Earth system. The major role water plays is a result of water's prevalence, high heat capacity, and the fact that phase changes of water occur regularly on Earth. The Sun provides the energy that drives the water cycle on Earth.
2.5 Movement of matter between reservoirs is driven by Earth's internal and external sources of energy. These movements are often accompanied by a change in the physical and chemical properties of the matter. Carbon, for example, occurs in carbonate rocks such as limestone, in the atmosphere as carbon dioxide gas, in water as dissolved carbon dioxide, and in all organisms as complex molecules that control the chemistry of life. Energy drives the flow of carbon between these different reservoirs.
2.6 Greenhouse gases affect energy flow through the Earth system. Greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, are transparent to much of the incoming sunlight but not to the infrared light from the warmed surface of Earth. These gases play a major role in determining average global surface temperatures. When Earth emits the same amount of energy as it absorbs, its average temperature remains stable.
2.7 The effects of changes in Earth's energy system are often not immediately apparent. Responses to changes in Earth's energy system, input versus output, are often only noticeable over the course of months, years, or even decades.
1. A protein in a cell membrane changed its
shape to move sodium and potassium ions
against their concentration gradients. Which on
molecule was most likely used by the protein
as an energy source?
A. ATP
B. ADP
C. catalase
D. amylase
Answer:
B. Lactic acid is produced
How would an early Persian windmill compare an early European windmill?
A. Persian windmill blades were vertical,like,propellers,white Europeans one were horizontal,like egg beaters.
B. Persian windmill blades were horizontal,like egg beaters,while Europeans one were vertical.
C. Persian windmills were made of discarded sails,while Europeans windmills were made of wood.
D. Persian windmills were made of stone,while Europeans windmills were made of wood.
Answer:
A is the correct answer
Explanation:
Persian windmill blades were vertical, like propellers, while European ones were horizontal, like egg-beaters. Explanation: ... The very first windmills featured with long vertical shafts with blades designed like rectangles who lived in ninth-century Persia. Six to twelve sails were produced of those windmills.
In very dry environments, sand can pile into large dunes.
The wind causes ripples on the surface of the sand.
Fossilized ripples of windblown sand
What do fossilized dunes such as the one shown in the photo tell scientists
about the environment?
A. It was once cold and wet.
B. It used to be a glacier.
C. It used to be an ocean.
OD. It was once dry and windy.
Answer:
D
Explanation:
the picture has ripples and is dry and cracked, hence the envirmoment having to be dry and windy.
Answer:
It was one dry and windy.
Explanation:
What is likely missing
from the following
food chain:
berries→ snake →
owl?
A. Bear
B. Mouse
Answer: Mouse
Explanation: Because a snake is a carnivore, it does not make sense for a snake to eat berries. However, by adding a mouse between berries and snake, the food chain will make sense.
Most available freshwater is used for
Answer:
ok so In most regions of the world, over 70 percent of freshwater is used for agriculture.
What effect do glass panels have on the infrared photons ?
Answer: The glass pane absorbs and re-radiates all of the infrared photons. The glass pane absorbs all invisible photons as well as visible photons. The glass pane transmits all invisible photons as well as visible photons.
Can someone help me?
a. The logistic equation reflects the effect of density-dependent factors, which can ultimately stabilize populations around the carrying capacity. b. Density-independent factors have an increasingly greater effect as a population's density increases. c. High densities in a population may cause physiological changes that inhibit reproduction. d. Because of the overlapping nature of population-regulating factors, it is often difficult to precisely determine their cause-and-effect relationships. e. The occurrence of population cycles in some populations may be the result of crowding or lag times in the response to density-dependent factors.
Question:
Which of the following is an incorrect statement about the regulation of populations?
Answer:
b. Density-independent factors have an increasingly greater effect as a population's density increases.
Explanation:
A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.
Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.
Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.
Mathematically, the population change equation is given by the formula;
Population Change = (Natality - Mortality) + (Immigration - Emigration)
Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;
I. Density-independent factors.
II. Density-dependent factors.
Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.
Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.
Acid rain contributes to all of the following problems except:
A.) Smog
B.) loss of biodiversity in aquatic ecosystems
C.) Damage to vegetation
D.) Advance chemical weathering
Answer:
Option A ( Smog ) .......
Neon (Ne) is right after fluorine (F) on the periodic table and directly above Argon (Ar). What element does Neon share more similar properties with, fluorine or Argon? Be sure to use claim, evidence and reasoning in your answer.
Answer: Argon
Explanation: They both have their outer electron shell filled, so they have no tendency to acquire or lose an electron. Therefore, they are very unreactive, a reason they are also called inert gases.
The answer is Argon as Neon shares more similar properties with it.
The similarities between them are that they both have the outer electrons shell filled and have a tendency to gain or lose electrons.
Why are the Neon and argon are in the same group?As they have the same atomic no. and same electron no. in the outer shell of their valence shells.
Thus it is clear that due to similarities between the electrons in them they are showing similar characteristics.
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