Answer:
Crust, mantle and core.
Water availability.
Volcanic eruptions.
Explanation:
The main similarities about Early earth and Modern earth is their layers of soil such as crust, mantle and core means that the both Early earth and Modern earth are made up of these three layers. At that time water is present in huge amount while on the other hand, in Modern earth water is also present in large amount as compared to land. Volcanic eruptions occurs in both early and Modern earth.
Answer;
A Niche is the role a species plays in the ecosystem while a habitat is the physical environment in which a species lives.
Explanation;
-Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. A niche will include the organism's role in the flow of energy through the ecosystem.
-The habitat is the physical area where a species lives, it is described by the abiotic (non living) factors such as climate, sunlight etc. and the biotic factors (living factors).
#1 question the answer is False
Increased risk of an accident while driving under the influence
The lac repressor functions as a tetramer and requires binding of all four sites before it releases because first it assures that the lactose level is high before the operon turns on for further steps.
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What is Lac Repressor ?</h3>
Lac repressor is a type of protein. It prevents the transcriptional stages of genes which involved in the Lactose utilization. Lac Operon binds to the DNA at a particular site which is known as Operator. Operator is the downstream of the promoter and the upstream of the site of transcription.
Lac repressor is made up of 2 DNA binding subunits which are composed of 2 monomers each and the monomers have particular 4 distinct regions.
To know more about the Lac Repressor please click here : brainly.com/question/7254078
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