Answer: Local recombination rate is expected to affect baseline diversity (grey dotted line). ... This mixing is called recombination, and it results from crossover events, where pairs of chromosomes swap genetic material. Evolutionary biologists have long known that recombination seems to increase genetic diversity.
Explanation: Natural selection attributes to increased genetic variation.
Which of these is an example of infill?
Answer:
what are the examples???
Explanation:
..
Answer:
A. Converting an old shopping mall into a community college.
B. Putting a parking garage on an unused lot inside a city
C. Drawing an urban growth boundary around an area.
D. Converting a rural pastureland into a new shopping center
Explanation:
According to AP!X, the correct answer is B. Putting a parking garage on an unused lot inside a city.
which of these does organic farming use?(plato)
Answer:Green manure
Explanation:
Who was the scientist who discovered the rule of base pairing
Answer:
Erwin Chargaff
Explanation:
The phenomenon know as gene flow introduces new Into a population
Answer:
The phenomenon know as gene flow introduces new alleles into a population, which promotes genetic variety.
Explanation:
In genetics, the concept of gene flow is related to the interaction of different populations of the same species. The gene flow model is based on the ability of a population to transfer alleles to another population, which promotes genetic variety.
One of the determinants of gene flow is the mobilization of individuals within a population, called migration. To the extent that a population is no longer isolated and begins to move, gene flow will increase and so will genetic variety.
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Gene flow introduces new genetic variations into a population through the movement of alleles, as individuals or gametes migrate between populations, affecting the allele frequencies and potentially influencing evolution.
Explanation:The phenomenon known as gene flow introduces new genetic variation into a population. It is an essential evolutionary force, representing the movement of alleles due to the migration of individuals or gametes between populations. For example, plants can send their pollen to other populations, and animals such as lions can migrate to establish new prides with unrelated females. These migrations result in the introduction of new alleles, which can significantly affect allele frequencies in both the populations they leave and the ones they enter. In essence, gene flow can change the genetic structure and introduce new genetic variations among populations, potentially influencing evolution in different geological locations and habitats.
Drag and drop the terms into the correct locations to describe how the relationship between photosynthetic organisms and animals based on what they release into the atmosphere. Terms may be used once, more than once, or not at all
Explanation:
Plants, green growth, microscopic organisms and even a few creatures photosynthesize. A procedure basic to life, photosynthesis utilizes carbon dioxide, water and daylight, and changes over it into sugar, water and oxygen Blue light is assimilated by chlorophyll, yet in addition via carotenoids, and a few carotenoids are not in the chloroplasts further, carotenes and xanthophylls make up the carotenoids.Carbon moves from petroleum derivatives to the environment when powers are scorched. At the point when people consume non-renewable energy sources to control industrial facilities, power plants, autos and trucks, the vast majority of the carbon rapidly enters the climate as carbon dioxide gas.How did the increasing amounts of oxygen in earth atmosphere allow organisms to live on land
Answer:
The increasing amounts of oxygen in earth atmosphere allow more growth of blue green algae.
Oxygen is present about 21 % in the earth atmosphere. Oxygen is important for the survival of living organisms because every living cell needs oxygen for respiration. In respiration, food molecules are broken down to produce energy with the help of oxygen. This energy is used by the cell in different processes.
Final answer:
The accumulation of oxygen in Earth's atmosphere, largely due to photosynthesis by cyanobacteria, enabled the evolution of aerobic organisms and the colonization of land by protecting organisms from ultraviolet radiation through ozone formation.
Explanation:
The increase in amounts of oxygen in Earth's atmosphere was critical for the colonization of land by organisms. Early on, Earth's atmosphere was anoxic, which means it had no molecular oxygen, and only anaerobic organisms could thrive. However, the advent of photosynthesis, particularly from cyanobacteria, began to alter the atmosphere by increasing oxygen levels. This oxygenation process facilitated the development of more efficient, oxygen-utilizing catabolic pathways in organisms. Furthermore, a portion of the atmospheric oxygen was transformed into ozone (O3), which plays a vital role in absorbing harmful ultraviolet light, thus protecting land-dwelling organisms from DNA-damaging mutations. Over time, these conditions allowed for a diversity of life forms to evolve and utilize the organic materials produced by plants, leading to a significant increase in animal population and diversity on land.
how did oxygen levels in the atmosphere reach current levels?
Explanation:
This occurred due to the evolution of photosynthetic organisms billions of years ago. Remember photosynthetic organisms take up carbon dioxide and evolve out oxygen as a byproduct in photosynthesis. The proliferation of these organisms caused a change in the atmospheric composition by taking out carbon dioxide and increasing oxygen. This event is known as the Great Oxygenation Event. This also caused a reduction in temperatures in the earth’s atmosphere because of carbon dioxide, which is a greenhouse gas, reduced drastically.
how does carrying capacity limit population numbers
Carrying capacity (K) represents the maximum population size that an environment can sustain without resource depletion. It limits population numbers by causing the growth rate to plateau once the maximum supportable population is reached. This capacity can vary due to environmental changes and interspecific competition.
Explanation:Carrying capacity, denoted as 'K', refers to the maximum population size that a particular environment can support. Populations might experience exponential growth with plenty of resources and limited individuals, but this cannot continue indefinitely in real-world conditions due to the limitation of resources.
As the number of individuals increases, resources deplete, slowing down the growth rate. Eventually, growth plateaus or levels off at the carrying capacity. The carrying capacity can variate annually due to environmental changes like natural events and weather conditions.
Populations rarely exist in isolation and often engage in interspecific competition, where different species compete for the same resources. This also impacts population dynamics and the carrying capacity of an environment. Hence, carrying capacity limits population numbers by determining the maximum number of individuals an environment can support without resource depletion.
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how does DNA testing in real course compare to tv.
Answer: TV isnt always real, DNA testing in real life is real.
Explanation:
Paramecia are single -celled organisms that reproduce sexually and asexually . How is a paramecium able to reproduce sexually ?
(1 ) by breaking into different pieces that grow into adults
( 2) by splitting in half to form two identical paramecia
(3 ) by exchanging genetic material with another paramecium
( 4) by acquiring new genes through mutation
oooooooooooooooooooo
Answer:
binary fission.
Explanation:
Rough endoplasmic reticulum does not have ribosomes attached to it. It produces lipids. Smooth endoplasmic reticulum has ribosomes attached to it. It produces proteins instead of lipids.
Select one:
True
False
Answer:
False
Explanation:
Rough ER's are the ones who have ribosomes attached to it, which is why it is called "rough"
The statement is false. The rough endoplasmic reticulum has ribosomes and is involved in protein synthesis, while the smooth endoplasmic reticulum, lacking ribosomes, is responsible for lipid synthesis.
Explanation:The statement provided in the question is False. In cells, the Rough endoplasmic reticulum does have ribosomes attached to it and it is involved in protein synthesis. Conversely, the Smooth endoplasmic reticulum, which lacks these ribosomes, is responsible for lipid synthesis, calcium ion storage, and toxin detoxification. The names 'rough' and 'smooth' come from their appearance under the microscope, as the ribosomes on the rough endoplasmic reticulum give it a bumpy appearance.
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You work for the WWF. Write a letter to the mayor of a small farm town to explain why this town is experiencing erosion, and why they should be concerned.
The letter should contain concerns about the causes and ill effects of erosion.
Explanation:Sir,
I am very sad to inform you that the town of Hariharanpur is suffering from continuous erosion for the last 3 years. Even after having proper knowledge about this fact, you being the mayor, are not taking any charge of this situation.
The town is situated just by the side of River Ganges which makes it's soil full of moisture. Along with the repeated deforestation and tree cutting for urbanisation, the smallest of the rain falls are also eroding a lot of soils. This can lead to severe landslides in river Ganges with severe loss of properties as well as loss of lives too.
So i request you to start embanking the river as well as to start planting new trees to save the town from getting lost under Ganges.
Thanking you,
XYZ.
Answer: Yes I did work for the World Wrestling Federation
Are plants a prokaryote or eukaryote
Answer:
Plants and Animals are Eukaryotes
Explanation:
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes (Bacteria and Archaea), which have no membrane-bound organelles.
Answer:
Eukaryote
Explanation:
Due to a Eukaryote being a cell with a nucleus and other parts it would include mammals plants and fungi a prokaryote is a single celled organism which consists of bacteria and cyanobacteria
In your own words, defend the use of Frankenfoods for developing countries?
Frankenfoods are naturally grown foods and not prepared in the laboratories but might contain toxic substances.
Explanation:
Genuine Frankenfoods are not developed in labs as the rivals of GMOs might want individuals to accept however rather are regular nourishment which contain lethal substances.
For instance, rhubarb leaves are noxious; whenever ingested, they could mess breathing up, seizures, kidney disappointment and at times passing. So even though it is naturally grown, it sometimes might not be safe for consumption.
What is happening to the doubled chromosomes in step 3 and 4?
What is the significance of the altered path of the Carrizo Creek?
Answer:
was a former stage station of the San Antonio-San Diego Mail Line
Explanation:
The altered path of the Carrizo Creek is significant as it could impact the ecosystem, human access to water resources, and may be indicative of larger environmental changes. Tracking such changes is crucial for managing land and water resources.
Explanation:The altered path of the Carrizo Creek signifies a change in geographical patterns that could have multiple impacts. An alteration in a creek's path can change its role in the ecosystem, affecting the wildlife and vegetation that depend on it for survival. This is also significant from a human perspective, as it might influence the deployment and management of water resources. For example, if the creek was a primary water source for a community, an altered path could potentially impact their access to water.
Taking note of such changes is central to managing natural resources and could indeed also be indicative of larger environmental changes in progress due to factors like climate change or geographical occurrences. Therefore, the significance of the altered path of the Carrizo Creek could range from ecosystem effects to impacts on human resource management and the tracking of global environmental changes.
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Q.9. In volcanic areas, groundwater heated by magma is a source of _____
energy
a) solar
b) hydroelectric
c) biomass
d) geothermal
Q.10. What is the largest and most active volcano in the world?
a) Olympus Mons
b) Mount Ruiz
c) Mauna Loa
d) Mount Vesuvius
Q.11.
_____ forms when repeated lava flows build up a broad, gently
sloping mountain, like Mauna Kea in Hawaii.
a) Cinder cones volcano
b) Composite volcano
c) Shield volcano
d) Lava dome volcano
Answer:
Explanation:
D) geothermal
C) Mauna Loa
D) Lava dome
Answer:
Correct answers are below.
Q.9. In volcanic areas, groundwater heated by magma is a source of _____
energy
D., or "geothermal".
Q.10. What is the largest and most active volcano in the world?
C., or "Mauna Loa".
Q.11.
_____ forms when repeated lava flows build up a broad, gently
sloping mountain, like Mauna Kea in Hawaii.
C., or "Shield volcano".
In what ways do prevailing winds affect precipitation in a region? Select 3 correct choices.
Prevailing winds force cool, moist air from oceans to rise.
Prevailing winds blow in the opposite direction as normal winds.
Prevailing winds influence wind movement from large bodies of water.
Prevailing winds cause huge air masses, both warm and cool, to move.
Prevailing winds controls the amount of water vapor in the air masses.
Answer:
The ways in which the prevailing winds affect precipitation in a region are:
Prevailing winds influence wind movement from large bodies of water. Prevailing winds cause huge air masses, both warm and cool, to move. Prevailing winds controls the amount of water vapor in the air masses.Explanation:
The prevailing winds set a pattern in the direction of the winds on the planet, following a fixed direction, to become one of the determining factors of climate change on the planet.
There are three types of prevailing winds:
The trade winds. The winds of the West. The polar winds, or from the east.The presence of predominant winds and their interaction with the surface, on land and in water, allows the displacement of air masses and pressure changes that determine rainfall in certain regions.
Factors such as the movement from large bodies of water, cause huge air masses -both warm and cool-to move and the controls the amount of water vapor in the air masses make it possible to trigger thermal changes in the air that lead to regional precipitation.
The prevailing winds produce that masses of air -charged with water vapor - rise and cool, which leads to the condensation of steam and, consequently, precipitations.
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Answer:
Correct answers are: C,D,E
Explanation:
Explain the relationship between crossing over
and genetic vanation
Answer:
Crossing over is the process when genetic material is exchanged by a non-sister chromatids during meiosis. Crossing over can result in new a new type of combination of some genetic information for the cell of a very specific trait!
what does phosphate do to plants
Answer:
it helps plants convert nutrients into usable energy for it to grow.
Explanation:
a lot of plant fertilizers actually have phosphate, this is because it aids the plant to have stronger roots and stems. It's needed for some plants to be healthy and also supports transfer energy in the plant.
how does the moon’s appearance change as the moon revolves around earth
Answer:
We only see the Moon because sunlight reflects back to us from its surface. During the course of a month, the Moon circles once around the Earth. If we could magically look down on our solar system, we would see that the half of the Moon facing the Sun is always lit. But the lit side does not always face the Earth!
Explanation:
Answer:
At first the Moon is dark. Then the Moon is a thin sliver [crescent]. Then half of the Moon is lit up. Then most of the Moon is lit up. Then the Moon is full. After that the Moon is mostly lit up, then half lit up, then a thin sliver, and finally completely dark again
Explanation:
How does water distribution on Earth affect settlement of populations?
Answer:
Water distribution on Earth greatly affect settlement of population because water is a necessary item for the survival of living creatures. Without water there is no life. Availability of water increases vegetation and increases the beautification of the area and peoples are attracted to live there.
Those areas where plenty of water is available having maximum population while those areas where water is present in low quantity, the population is also low like deserts.
Final answer:
Water distribution on Earth significantly impacts population settlement patterns, with safe water availability being a critical factor for community prosperity and growth. Urbanization and climate change further influence these patterns, stressing water resources in certain regions, and consequently, economic activities and sustainability of settlements.
Explanation:
Water distribution on Earth plays a vital role in shaping the settlement patterns of populations. Access to safe water is a primary determinant of health and prosperity, influencing where communities can live and thrive. The management and distribution of this key natural resource greatly affect the location and patterns of movement of products, money, and people. For example, regions with abundant freshwater have historically seen the growth of cultural hearths, where agricultural practices and subsequent cultural activities flourished.
Urbanization trends further complicate this picture. As economic development continues, many rural populations migrate to urban areas in pursuit of better educational and job opportunities, leading to increased stress on the water resources in these regions. Climate change is exacerbating this issue, causing many to relocate from endangered regions such as sub-Saharan Africa due to water scarcity.
Settlement patterns have also been influenced by factors like economic development, transportation, and the availability of resources, leading to vast differences in population distribution between urban and rural areas, as well as within regions of varying water abundance. The social and economic activities related to water distribution also impact the sustainability of settlements and the quality of life for the residents.
4. A grouping based on the ability of members to
successfully produce offspring with one another is:
a. Kingdom
b. Class
c. Family
d. Species
Answer: it is species!
Explanation: species is a GROUP of individual organisims that inter breed with others!
How do cells replicate
Answer:
meiosis and mitosis?
Explanation:
some seeds contain fluffy parachute like structure.give reasons.
Seeds with fluffy parachute-like structures enable wind dispersal for effective seed distribution.
Seeds with fluffy parachute-like structures have evolved a specialized adaptation for wind dispersal, a mechanism crucial for effective seed distribution and colonization of new areas. This strategy increases the chances of seeds reaching favorable environments for germination and growth. The fluffy structures, often referred to as pappus or tufts of fine hairs, create a large surface area that catches the wind, allowing the seeds to be carried over considerable distances from the parent plant.
This mode of dispersal is particularly advantageous for plants inhabiting open landscapes where wind currents are prevalent. By harnessing the power of the wind, these seeds can achieve greater mobility and escape competition with neighboring plants, ultimately enhancing the species' survival and expansion in diverse ecological settings.
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Which two claims are based on science?
4 of 11 QUESTIONS
The data gathered from seaside laboratories around the world show that
global sea levels have risen.
Earth's temperature must be rising, because winter sports are less
popular than in the past.
Many people worry that increased global temperatures will cause their
businesses to lose profits.
Temperature measurements show that many climates are warmer than
they were in the past.
- Many people worry that increased global temperatures will cause their
businesses to lose profits.
(IT IS SCIENTIFIC)
- Temperature measurements show that many climates are warmer than
they were in the past.
(IT IS ALSO SCIENTIFIC)
Answer:
"The data gathered from seaside laboratories around the world show that
global sea levels have risen" and "Temperature measurements show that many climates are warmer than they were in the past" both are answers based on scientific research.
Explanation:
In southern Arizona, in the Chiricahue Mountains, there are species of toads that live aciya
the top of individual mountains. Because these toads have adapted to the elevation as tops
of these mountains, they have become reproductively isolated from all other species of toad
within that mountain range.
Answer:
Geographic isolation
Explanation:
Geographic isolation can be described as a term that describes the model of speciation in which a biological population becomes isolated from other members of the population and can no longer have gene flow with them.
The same scenario of gene isolation is occurring in the species of taods which live at the top of the mountains in southern Arizona. This population has become reproductively isolated fro all other species of toads within the mountain range.
A weather map shows two cities along the same isobar. What does this indicate about the cities?
A. it is raining in both cities
B. both cities are at the same latitude
C. the air pressure is the same in both cities
D. the temperature is the same in both cities
Answer:
a. it is raining in both cities
Explanation:
What does a reduced snout in the primates tell us about their activity patterns and lifestyle? How does this differ from the cat, which in the wild, is a predator.
Answer:
Primates are vision-orientated and are distinguished from other mammals. The reduction of the snout in primates is a correlate of the diminution of the sense of smell, or olfaction. To a great extent, visual acuity and manual dexterity have replaced the sensitive, inquiring nose found in so many nonprimate mammals. Furthermore the evolution of enhanced motion detection also accured indicating that the primates went from nocturnal to diural lifestyle. From catching insects to onmivory. Therefore the differece from cats.
Explanation:
Final answer:
The reduced snout in primates shows an evolutionary preference for enhanced visual systems at the expense of olfactory capabilities, which correlates with diurnal lifestyle and social behaviors like alarm calling. In contrast, cats have elongated snouts that enhance their sense of smell for hunting.
Explanation:
The reduced snout in primates indicates an evolutionary trade-off, where primates have compensated for a highly developed visual system by cutting back on their sense of smell. This is reflected in their shorter snouts compared to other mammals, signifying less reliance on olfactory cues and a greater emphasis on vision. For instance, primates with more convergent eyes and better visual acuity will have a reduced snout due to the energy allocated to visual processing rather than olfactory functions. Conversely, other mammals such as cats, which are predators, have elongated snouts indicative of a more pronounced sense of smell beneficial for hunting. Primates' reliance on vision is also linked to behavior patterns, with many being diurnal and living in larger groups that use shared vigilance and alarm calling to mitigate predation risks. In contrast, nocturnal primates like the slow loris move quietly and are often solitary to employ crypsis, avoiding detection by predators. Catarrhines, an infraorder of primates which includes Old World monkeys, apes, and humans, have particularly developed visual systems among primates. They are characterized by stereoscopic vision and, in most cases, trichromatic color vision, with both adaptations especially valuable for their diurnal lifestyle.
Coconut dispersal mechanism and reason
Answer:
Coconut dispersal mechanism: Coconut seed disperse through water. The main reason for this dispersal is due to presence of coconut plant on the bank of sea. When the seed of coconut tree matures, it falls from the tree into water. This seed floats in the water and goes on beaches where they sprouts and become a new tree. Coconut seed is big in size so it cannot dispersed through wind and animals.