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RUDIKE [14]
3 years ago
8

Scientists used major changes in life forms in the fossil record to from the geologic thin scale

Biology
1 answer:
tino4ka555 [31]3 years ago
4 0
There are all sorts of ways to reconstruct the history of life on Earth. Pinning down when specific events occurred is often tricky, though. For this, biologists depend mainly on dating the rocks in which fossils are found, and by looking at the “molecular clocks” in the DNA of living organisms.
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What complementary strand of DNA would be produced from the strand of DNA shown below?<br> TCG GA
mariarad [96]
Complementary pairing goes like this:

A pairs with T and 
C pairs with G. Nothing about this changes unless you get to mRNA (But we won't go into that) :)

So if you have a strand that goes TCG GA then your pairing will look like this:

T A
C G
G C
G C
A T

Hope this helps!! :)
8 0
3 years ago
Read 2 more answers
What are the 6 opening ceremonies positions in the ffa
Serjik [45]

Answer:

Cross Section of the ear of corn- Unity, Rising Sun- Progress, Eagle- Freedom, Plow- Labor and Tillage of the Soil, Owl- Knowledge & Wisdom, Words Agriculture Education and FFA

Explanation:

5 0
3 years ago
1. Why are offspring of flowering plants genetically different from the parent plants?
ankoles [38]
The answer to number 1 is d since asexual reproduction is how plants mate.
8 0
4 years ago
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A student is conducting their science experiment on the effect of caffeine on dogs. He has 3 groups of test subjects.
Anvisha [2.4K]

If the dogs are different breeds, their activity levels could be different because of their breed and not the caffeine. The correct option is A.

<h3>Reliability of experiments</h3>

In order for the outcomes of scientific experiments to be reliable, constant variables should be kept constant.

In the illustrated experiments, the breed and age of the experimental dogs have to be the same. It is one of the variables that have to be kept constant throughout the experiment.

If the dogs are different breeds, their activity levels could be different because of their breed and not the caffeine. The same thing is applicable to different ages.

Thus, evaluating this variable and doing right by it will ensure reliability.

More on the reliability of results can be found here: brainly.com/question/1873979

#SPJ1

5 0
2 years ago
If a force of 14.7 N is used to drag the loaded cart (from previous question) along the incline for a distance of 0.90 meters, t
Misha Larkins [42]
Word done (otherwise known as energy) = force * distance
So
14.7 * 0.9 = 13.23 J (Joules)
3 0
2 years ago
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