The answer is B. Transmission electron microscope is the ideal tool to use to study the surface of preserved cells. The microscope has the ability to see extremely small structures and it can only be used to examine dead or preserved materials. This is because the specimen must be dehydrated before it can be examined.
Light microscope is used majorly to examine microbes while scanning electron microscope is used to observe a sample's surface topography and composition.
DNA was not a type of evidence Darwin had available in his time!!
Answer:
True
Explanation:
The attached image shows a table that displays the eight (8) planets, their respective average distance from the sun and their respective orbital speeds.
The question only relates the orbital speed of planets Uranus and Venus, which is 7km/s and 35km/s respectively.
40% of the orbital speed of planet Venus is:
= 40/100 × 35
= 0.4 × 35
= 14
According to the table in the image, Uranus orbits around the sun at a speed of 7km/s, which is lesser than 40% of Venus's orbital speed (14km/s).
Therefore, it is TRUE that Uranus orbits the sun at less than 40% of the orbital speed of Venus.
The combination was able to kill<span> its host.</span>
