Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.
Answer:
In the traditional phylogeny platyhelminthes is depicted as a lophotrochozoan phylum. What probably led to this change?
The removal of the acoel flatworms (Acoela) from the Platyhelminthes allowed the remaining flatworms to be clearly tied to the Lophotrochozoa.
Explanation:
Global warming
The increase of greenhouse gases result into global warming :)
During differentiation, certain genes are activated to produce proteins that enable specific functions.
3. Meiosis results in offspring with genotypes that are not exact copies of the parents.
4. DNA replication occurs before the division of the nucleus.
5. I can't answer without the image.
6. ovary cells (and testes in males)
7. I can't answer without the image.
8. It was passed to the individual by a gamete from the father.
9. 3n
