The correct answer is - B. The rock formed in a fast moving stream.
The rocks that have ripples are a relatively easy when it comes to guessing where they formed and under what conditions. The reason for that are the ripples themselves, as they are formed only because of the influence of water or wind, though it is mostly the water.
If we see a rock with ripples, the chances are that that rock has formed in place where it was influenced by water for prolonged period of time. The best guess would be a fast moving stream, as the water will have bigger power, and will be able to have bigger influence on the rock and make its ripples.
Answer:
He discovered the cell nucleus and realized that inside the nucleus there was an unknown chemical substance. That substance was DNA.
Explanation:
Who discovered the DNA was Friedrich Miescher, a Swiss biochemist with great talent. Miescher, using substance precipitation techniques, such as pH changes in the medium, was able to discover and isolate the cell nucleus. Inside the nucleus he was able to isolate a previously unknown substance. It was the nucleic acid, DNA, which, at the moment, with the technology available until then, presented itself only as a white, flocculent precipitate, which Miescher would later call nuclein.
In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule. Phoebus Levene was an organic chemist in the early 1900's. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA.
To sum it up the answer is yes.
Answer:
Option D. Gulf Coast Prairies and Marshes ecoregion
Explanation:
On the south east coast of texas, the Gulf Coast Prairies and Marshes ecoregion are located. The topography consists of plain flat land and the elevation is low. The soil type is mainly sandy and the vegetation near the coast is sparse. Thus, strong winds such as hurricanes and storm will carry away the looses sandy soil and lead to beach erosion thereby destroying habitats for animals such as turtles, pelicans etc.
Hence, option D is correct.
The 'Rolling Plains' ecoregion of Texas is the most susceptible to wind erosion due to its grassland ecology and the nature of its sandy and loamy soils.
In the state of Texas, the ecoregion most likely to be affected by wind erosion would be the G. rolling plains. This area is predominantly comprised of grasslands, which lack the root structures and vegetation density of other regions like forests to hold the soil firmly in place. Therefore, they are more susceptible to the wind's forces. The sandy and loamy soils found in this ecoregion also contribute to vulnerability as they are lighter and more easily picked up by wind. Unlike these grasslands, regions like East Texas Piney Woods and Gulf Coast prairies and marshes have more vegetation coverage, minimizing the possibility of wind erosion.
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A.24 hrs later
B.9 pm on saturday
C.4 am on sunday
D.6 hrs later
Answer:
C. 4 am on Sunday
Explanation:
It takes 6 hours 12.5 mins to go from high to low tides, high tides occurs every 12 hours and 25 mins apart.
B)Homologous chromosomes failed to separate, resulting in recombination.
C)Homologous chromosomes failed to separate, resulting in nondisjunction.
D)Homologous chromosomes failed to separate, resulting in independent
assortment
Answer:
The correct option is C) Homologous chromosomes failed to separate, resulting in non-disjunction.
Explanation:
Non- disjunction can be described as a phenomenon in which the chromosomes fail to separate during cell division, resulting in both the chromosomes being transferred to a single gamete.
Non- disjunction can occur in three types:
Answer:
c
Explanation:
Answer:
He is right, it would be called a clone
Explanation: