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Elanso [62]
4 years ago
8

Mutation is an evolutionary mechanism. a. True b. False

Biology
1 answer:
Dennis_Churaev [7]4 years ago
3 0
Of course-true- without variation evolution would not existd
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Which of the following is a scientific observation about the snake pictured below?
Fynjy0 [20]

Answer:

Adult cottonmouths are brown.

Explanation:

An observation is a fact that you can clearly see and don't have to guess if it is true or not.

4 0
3 years ago
How does a new hypothesis replace an older explanation of something in the natural world
Flura [38]

How does a new hypothesis replace an older explanation of something in the natural world? To understand this let us look at one of the classical example of geocentric theory and heliocentric theory. The geocentric theory states the Earth is at the centre of the solar system and the Sun, Moon, and all the other planets revolve around it. This ancient theory failed to explain the phenomenon like the phases of Moon, solar eclipse and lunar eclipse. The modern heliocentric theory which states that the Sun is at the centre of solar system, and all the planets including the Earth revolve around it. This theory was able to explain all the phenomenons unlike the geocentric theory. Hence the heliocentric theory replaced the geocentric theory.

5 0
4 years ago
How has our understanding of the rock cycle changed over time?
Monica [59]

Answer:

The rock cycle is driven by two forces: (1) Earth's internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust, and (2) the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun

Explanation:

5 0
4 years ago
Which division of the peripheral nervous system is responsible for physiological symptoms such as increased heart rate and butte
natali 33 [55]
The division of the peripheral nervous system is responsible for physiological symptoms such as increased heart rate and butterflies in the stomach is sympathetic!

Hope I helped! :)
7 0
3 years ago
If a person eats hurriedly and barely chews his food before swallowing it, what effect will it likely have on his stomach?
weqwewe [10]
Well to be fair no matter what happens, a will always happen no matter how wholly fold is chewed. However because chime is the byproduct of chewing and saliva. Your body must be able to break down the food into a smaller and easy to absorb form so if you can't do it with the mouth, the stomach is just going to have to do the job.

So "D" is the correct answer
4 0
3 years ago
Read 2 more answers
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