Answer: Option D is the correct answer.
Explanation:
Animals are not the first to colonize land. Prokaryote are probable the first organisms to colonize land. They have been existing about 2.6 billions years ago. Fungi have been in existence long time ago. Study reveals that they have been living in aquatic habitat before coming to colonize the land.
Answer:
Proteins named transcription factors, help set specific genes on or off by binding to the DNA.
Explanation:
- A co-activator is the type of transcription factor that binds to the activators to increase the process of transcription.
- An activator is the type of transcription factor that increases transcription.
- A repressor is the type of transcription factor that decreases or prevents the transcription by blocking the RNA polymerase to the promoter.
- A general transcription factor, also known as a basal transcription factor, is a type of transcription factor that initiates transcription.
Answer:
c
Explanation:
because the body uses itself to heal
Answer:
C. Permian-Triassic
Explanation:
There have been several mass extinctions throughout Earth's history, more specifically five, at least from what is known so far. All of them share one characteristic, more than half of the species on the planet have died out in a very short period of time. Some extinction were more mild, while some very extreme. The most extreme one was the Permian-Triassic extinction with estimated 90-96% of the species going extinct. This extinction put end to the domination of the sinapsids, but from the smaller animals that survived through it, the dinosaurs and the mammals arose.
