Unlike gradualism, punctuated equilibrium involves stable periods of change interrupted by rapidly occurring change. Correct option is b.
Unlike gradualism, which suggests a slow and continuous change in evolution over time, punctuated equilibrium proposes that species experience long periods of relative stability (equilibrium) during which there is little or no significant change. These stable periods are "punctuated" or interrupted by relatively short bursts of rapid evolutionary change. These bursts of change may result in the appearance of new species or major adaptations in response to environmental shifts or other factors.
Punctuated equilibrium, proposed by paleontologists Niles Eldredge and Stephen Jay Gould in the early 1970s, challenges the traditional view of a smooth, gradual evolution and highlights the importance of considering periods of stasis and rapid change in the fossil record.
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Answer:
your brain
Explanation:
why this is well because no brain your dead it helps you eat sleep breath and pump your heart no brain no HEART ether but thats me
B. natural selection
C. selective breeding
D. inheritance of acquired characteristics
What observation did Darwin make that suggested there had been geological changes in Earth's history?
A. giant tortoises
B. fossils of giant sloths
C. fossil shells on top of mountains
D. an absence of rabbits in South America
Answer 1 : D) Inheritance of acquired characteristics
Jean-Baptiste Lamarck propose a mechanism by which gradual change of species may occur.
According to him the traits an organism gained during its lifetime could be passed to its offspring.
Example: If a giraffe stretched its neck gradually by stretching to reach leaves for many years, Lamarck believed the offspring may have longer necks.
Answer 2: A) Giant Tortoises
Charles Darwin visited Galapagos Islands in 1835. During his visit he observed that different species were in a constant battle for survival with each other, and because of that battle there was a variation in the tortoise that live on the sand and those that live in the water.
Answer:
The burning of wood and the burning of food calories produce carbon dioxide and heat. The calory burning gives energy to the body but in wood burning only wood becomes a carbon compound i.e. ash.
Explanation:
The burning of wood and the burning of calories release carbon dioxide and heat. In the body, oxygen breaks down the food calories and produces CO2 which release from the body by exhalation. The heat produced by food burning causes sweating. Oxygen also helps in burning of wood. In this way the food calory burning and wood burning are similar.
In calory burning the complex food becomes simpler and helps in tissue metabolism. In wood burning atmospheric oxygen helps in burning, and they release other gases like carbon monoxide, nitrogen to the environment which is not happening in case of metabolism. The complete burning of wood results in carbon compounds. In calories burning excess energy is stored in the form of fat. Because food calories are nothing but energy derive from different food.
Answer:
Clouds formation takes place when the air get warm and the moist or water droplet gets cool and expand.Clouds are nothing but small droplets of water evaoprated from the Earth surface.
Cloud coverage is defined as the fraction of the sky occupied by clouds as observed at a location.
The cloud coverage depends on the duration of sunshine as the location with more cloud covergae have as least exposure of sun and the least cloudy locales are the sunniest ones.
Other parameters affecting clod covergae are topography, temperature and humidity. Location with high mountains have large cloud coverage as it allows clouds to rain, Cool places have more water coverage as more water vaporise and expand in teh atmosphere, and humidity also support cloud coverage as more is the humidty more tiny droplets will evaporate to form clouds.
Changes in these factors causes variation in cloud coverage from year to year as environmental condition due to global warming is affected.
Answer:
The movement of the continents in the continental drift hypothesis causes the land to rise or fall. The earth’s crust is dynamic and it is constantly moving slowly. If the continent rises, the sea level decreases and if the continent goes downward, sea level rises.
Explanation:
B) lipid
C) salt
D) starch
Starch, or asylum, is a complex carbohydrate that exists in many foods, including grains, vegetables, and fruits. Thus, option D is correct.
The body's primary energy source is carbohydrate-based. They are the dietary fibre, sugars, and carbohydrates found in dairy and plant-based diets. Carbohydrates have carbon, hydrogen, and oxygen atoms in their chemical makeup. Aldehydes, which are double-bonded carbon and oxygen atoms plus one hydrogen atom, and aldehydes, which are double-bonded carbon and oxygen atoms plus two more oxygen atoms, are the two basic molecules that make up carbohydrates.
It is a carbon atom-containing ketone. Different forms of carbohydrates can be produced by combining carbs to form polymers or chains. Monosaccharides, disaccharides, and polysaccharides are all types of carbohydrates.
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