However,the repressor would not be able to bind to the operator and switch off transcription.The cell would still be making tryptophan even though it is being supplied by the medium in which it is growing.This is a waste of energy.

4 0

3 years ago

Scientists have discovered and analyzed a huge number of fossils that represent a wide variety of species. What type of evidence

Rainbow [258]

Answer:

The fossil record supports a "biological" type of evidence.

Explanation:

Fossils- this refers to the remains of prehistoric organism. It provides a trace of a once-living plant, animal or organism.

When it comes to evolution, fossils provide a biological type of evidence. This means that, it shows how organism have greatly changed from the past. When you study fossil records, you can compare it with the animal, plant or human structure nowadays. You can compare them side-by-side. So, you'd get that idea on how prehistoric things lived in the past and how they evolved up to the present day or became extinct.

Most of the fossils can be found on sedimentary rocks. You can also tell their ages according to which layer they belong. It is said that older layers consist of older fossils and they appear at the bottom while younger layers consist of younger fossils and they appear on top.

5 0

3 years ago

I need help with this.

Bumek [7]

The answer would be sewer systems.

6 0

3 years ago