<u>Answer:</u> "Chemical fossils"evidence supports the notion that sponges are some of the earliest known multicellular animals.
<u>Explanation:</u>
Sponges are multicellular animals, may belong to Ediacarian period likely to be 80 million years ago or earlier. They catered through a complex system of internal channels, by moving seawater.
Sponges are soft-bodied and very rarely protected as fossils, therefore finding evidence of existence is giant task. The key of their existence came to know from abnormal chemicals which is a steroids of a particular type generated sufficiently by them but virtually never by ordinary organisms.
Analysis of long strata sequence found in Oman and researchers have been able to extract these "chemical fossils" from samples spanning tens of millions of years — before, during and after the Ediacarian period.This gave clear evidence that sponges had to have evolved long before the great variety of multicellular organisms proliferated at the dawn of that time.
Answer:
Active transport
Explanation:
Diffusion is when particles (like perfume) spread out everywhere from an area where there is a lot of it to where there is a little to none of it. Active transport is the opposite. A cell for example would use it's own energy to absorb nutrients when it already has quite a lot. Naturally diffusion would make the particles or nutrients go out of the cell because there is a lot of it inside the cell not outside, so active transport is used to absorb as much as the cell can from around it, even when it is full.
F is your answer. Transform Boundary
The soil on the valley floor because it would not have runoff. Hope this helps.
Answer:
The correct answer will be-
1. Weed- 40%
2. Fruit fly- 60 %
3. Mice- 97.5 %
4. Chimpanzee-98.5 %
Explanation:
Charles Darwin suggested that all organism on earth have descended from a common ancestor. The modern technology-enabled humans to sequence the genome of an organism and compared them with each other.
When the human genome was compared with the genome of other organism found the similar sequences in them like - Weed shared 40% of the genome with humans, fruit fly shared 60% genome, mice showed 97.5% genome similarity and chimpanzees showed 98.5 % with the human genome.
On the basis of this, the chimpanzee was found to be the closest species to humans
