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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.
B) Queen Mary decreed the world was round
C) continued travel to the western hemisphere
D) testing new hypotheses that generated new data
C) proteins
D) nucleic acids
E) lipids, carbohydrates, proteins, and nucleic acids all consist of only macromolecular polymers
Answer:
(Correct option is B) Carbohydrates.
Explanation:
Biological molecules are known as the molecules which are found in the organisms, and play some important roles like development, cell division, and morphogenesis. They are necessary for the life.
Carbohydrates are known as the classes of biological molecules which consist of small molecules, and macromolecular polymers both. Carbohydrate are divided into three subtypes of essential macromolecules:
1) Monosaccharides: Fructose, galactose, and glucose are isomers of monosaccharide.
2) Disaccharides: Sucrose is the isomer of disaccharide.
3) Polysaccharides: Starch, cellulose, and glycogen are example of polysaccharide.
Glucose, and sucrose are known as the small molecules of carbohydrates, and other molecules of carbohydrate such as polysaccharides are known as macromolecular polymers.
Answer:
Centrioles _ are small cell organelles, found near nucleus of animal cells. These organelles function in formation of spindle fibers at the time of cell division, required for the proper separation of chromosomes in daughter cells.
Explanation:
Answer:
the answer is C
Explanation: