Cuales son las características anatómicas de las fosas nasales
Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants. FLC is expressed in new seedlings, which prevents flowering. Upon exposure to cold temperatures, FLC expression decreases and the plant flowers. FLC is regulated through epigenetic modifications. What type of epigenetic modifications are present in new seedlings and after cold exposure
Answer:
- New seedlings: histone acetylation
- After cold exposure: histone methylation
Explanation:
Vernalization is an adaptive mechanism whose objective is to ensure that flowering occurs only after winter (i.e., after cold conditions). In certain plants, this process (vernalization) suppresses the expression of genes that encode repressors of flowering. In Arabidopsis, vernalization is associated with histone modifications at FLC chromatin. The FLOWERING LOCUS C (FLC) is a MADS-box gene that acts as a repressor of flowering in Arabidopsis. Epigenetic modifications control the expression of the FLC gene. The FLC gene is expressed at low temperatures due to histone acetylation at FLC chromatin, and thereby the expression of FLC mRNA transcripts ensures that the Arabidopsis plant cannot flower. Subsequently, as the Arabidopsis plant is exposed to cold, FLC is repressed by the accumulation of trimethylation on lysine 27 of histone 3 (H3K27me3), thereby allowing it to flower when temperatures become warmer.
Copper is a mineral commonly used in electronics. Copper ore deposits were created by volcanic activity. Heat and pressure creates copper ore and deposited it in sedimentary rock layers. Copper is considered a resource.
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Answer:Copper is a mineral commonly used in electronics. Copper ore deposits were created by volcanic activity. Heat and pressure creates copper ore and deposited it in sedimentary rock layers. Copper is considered a resource.
Explanion:
its already the answer
When sea ice melts, there will be a significant amount of sea level rise.
O True
O False
It will be true, since the ice bergas that fall off can be as big as a 98-164 feet. Form what I have resched
Which part always comes FIRST in the scientific name?
Answer:
The first part of the scientific name is the genus, and it is always capitalized. (The plural is "genera"). The second part is the species epithet. The entire name is written in italics.
Explanation:
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PLS HELP! When I let go of a rock it falls down. What happens explain
Answer:
Gravity
Explanation:
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Which of the following would be classified as a renewable resource?
O A barrel of oil that would take 8 million years to form.
A large piece of coal that would take 4 million years to form.
O Solar rays from the Sun that take 8 minutes to reach the Earth.
O Methane gas from the ocean floor that takes 7 thousand years to outgas.
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Which statement is part of Darwin’s theory of evolution by natural selection?
A). Acquired characteristics that are inherited are the cause of evolution.
B). The organisms that are the fittest are always largest and strongest.
C). The number of offspring is not related to fitness.
D). More offspring are produced than can possibly survive.
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Answer:
Genotypes - Phenotypes:
TT - Thin
Tt - Thin
tt - Wide upside down
LL - Lopsided
Ll - Lopsided
ll - Parallel
VV - Vertical
Vv - Veritcal
vv - Horizontal
PP - Pink
Pp - Pink
pp - Red
Who suggested that the distance of a galaxy is proportional to its recessional speed
Answer:
Edwin Hubble
Explanation:
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1. Which data shows that Neanderthals are not the ancestors of modern humans?
A.Differences in Neanderthals and human DNA.
B.Evidence from Neanderthals burial grounds
C.Muscular build of Neanderthals as compared to humans
D.Patterns of Neanderthal extinction.
2. Which mammal is most closely related to bats (chiropterans)
A. Carnivorans
B. Xernarthans
C. Primates
D. Rodentains
3. Which radioactive isotope would be used to determine the specific age of a Paleozoic rock formation?
A. Beryllium-10(1.5 million years)
B. Carbon-14(5715 years)
C. Thorium-232(14 billion years)
D. Uranium-235(704 million years)
4. According to the Hardy- Weinberg principle, which situation would disrupt genetic equilibrium?
A. A large pop of deer inhabits a forest region.
B. A particular pop of flies mates randomly.
C. A pop of flowering plants always has the same group of natural predators.
D. A small pop of birds colonizes a new island.
5. According to the endosymbiont theory, which part of the eukaryotic cell evolved from a prokaryotic cell?
A. Chloroplast
B. Golgi apparatus
C. Nuclease
D. Ribosome
Answer:
C. Muscular build of Neanderthals as compared to humans
D. Rodentains
A. Beryllium-10(1.5 million years)
D. A small pop of birds colonizes a new island.
B. Golgi apparatus
True or false Biodiversity has both economical and ecological value within an ecosystem.
Explanation:
biodiversity has both economic value and ecological value within an ecosystem. ... Human activities can also threaten biodiversity. These activities include habitat destruction, poaching, pollution, and the introduction of exotic species.
Counting a few organisms with in a population and multiplying that number
to estimate the total size of a population is an example of *
Which ingredient is a food acid used to activate baking
soda in quick breads?
o honey
o buttermilk
Answer:
Honey
Explanation:
Technically it could be both, as they can both be acidic, but honey is lower on the pH scale, meaning it is more acidic and thus will have a larger chemical reaction with baking soda.
A person is observing the oscillations of a wave. If the wave source begins to move away from the person, what will the person notice?
A.
The wavelength will decrease.
B.
The wave appears to have a different amplitude.
C.
The wave appears to change speed.
D.
The wave appears to oscillate at a different rate.
the wave appears to oscillate at a different rate
PLEASE ANWSER CORRECT AND ASAPPL
Answer: B. Mostly nitrogen, carbon dioxide, water vapor.
Please!! I’ll give you lots of points!! PHow do the sensory spines most likely help the cockroach
survive in its environment?
A. They improve the cockroach's vision so it can see
predators sooner.
B. They allow the cockroach to change its body shape
to confuse predators.
C. They reduce the friction along the top of the
cockroach so it can move faster than predators.
D. They allow the cockroach to move through small
spaces where it is unable to use its feet to escape
predators.
The natural extinction of a predator can negatively affect the
Environment by leading to
-unrestricted prey species growth.
- major climate change.
-harmful human pollution.
-increased sediment deposits.
Which of the following is a way in which the atmosphere does NOT
interact with the hydrosphere? *
A). Decreasing the salinity of oceans from increased temperatures causing glacial
melting.
B). Developing hurricanes over warm ocean currents.
C).Increasing the amount of water evaporation from oceans and global temperatures
rise.
D). Gases moving sediment from hill tops
What is climate change? O A. Lange-scale changes to weather patterns B. Increasing temperatures only C. Natural cycles of cooling and heating D. Decreasing temperatures only
Answer:
C. Natural cycles of cooling and heating is the best option.
Explanation:
C. is the only answer that describes climate, the others describe weather. Climate is natural conditions over a long period of time while weather is over a short period of time.
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Answer:
At the bottom of the food chain, the herbage, are the producers. All the other organisms above the producer are consumers. In economics, the food chain is the series of processes by which we grow, sell, and eventually consume food. This article focuses on the term when it refers to organisms that depend on each other as a source of food.
Explanation:
Answer:
heterotroph
Explanation:
pls answer pls please
Answer:
1.it's beak is pointed and slightly curved at pointed
2.it's upper part is brown and lower part is white
3.it's legs is black
Explanation:
Name three reasons why the atmosphere is important to life on earth and explain your reasoning.
The atmosphere ensures that all living things can carry out daily processes that are vital to survival, such as breathing. Photosynthesis, for example, could not be possible without an atmosphere, because all of the gasses in our atmosphere stay there due to Earth's gravity.
The atmosphere is vital because it plays a role in the water cycle as well, allowing rain to keep falling and giving life-giving water to organisms that need it.
Life would not be possible without an atmosphere on this planet, along with other vital things, like gravity, sunlight, and water.
A person is trying to solve the equation for the energy of a light wave: E=hcλ . She knows the values of h and c. What does the quantity λ represent?
A.
frequency
B.
wave speed
C.
period
D.
wavelength
Answerd
;-)◑__◐
Explanation:
Is a bird calls warning for prey a physical or behavioral adaptation?
Is an animals body temperature changing a physical or behavioral adaptation?
Is birds flying to high ground when they sense movement a physical or behavioral adaptation?
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Which feature must a community have in order to use wind energy?
A. An average elevation change of 20 feet per mile to allow the wind
to flow downhill
B. Molten rock near groundwater supplies
C. Nets to keep birds and bats away from the turbines
D. An average wind speed of at least 15 miles per hour and enough
land to build several wind turbines
PLEASE HELP ASAP
molten rocck near ground water supplies
Which of the following are not properties of lipids?
Answer: Lipid refers to any class of organic compounds that are considered fatty acids. This also includes their derivatives that are soluble in organic solvents, like many natural oils, waxes phospholipids and steroids.
All lipids have similar properties because their molecules are made of the same elements with similar chemical structure that only varies slightly.
Foods like meat, poultry, seafood, beans, peas and eggs are all sources of proteins, while good that contains saturated fat like palm oil, coconut oil, milk, cheese and coffee creamers and butter contain lipids, that may help in storing energy.
Explanation:
There has a been decrease in the diversity of plants in the grasslands of the Edward's plateau. What has caused this to occur?
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Answer:
B or the second answer
Explanation:
Answer: I think It is B
Explanation:
Using what you read in this passage, evaluate the following vacation
activities. Which one would cause the least disruption of the balance of
the coral reef?
A
Sport fishing on the reef
B
Scuba diving to view the reef species
с
Collecting rocks and shells as souvenirs
D
Attracting sharks to the reef with bait for photos
From the listed human activities, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.
What are coral reefs?Coral reefs are narrow and shallow stretches land where corals ate found and these corals serves as foundation for reefs to form.
The reef is an ecosystem consisting of algaes and fishes as well as some other aquatic organism.
The balance in coral reefs can be disrupted by human activities such as:
Sport fishing on the reefCollecting rocks and shells as souvenirsAttracting sharks to the reef with bait for photosHowever, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.
Learn more about coral reefs at: https://brainly.com/question/10970167