Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords
I believe the answer would be A, because if water didn’t exist, there would be no presence of living things on earth. Water is a resource for life, thus, presence of living things.
Answer:
Green was dominant over yellow. So they were all green if you are talking about the first generation. The second generation would be a mix
Explanation:
There are two types of biological organization, I believe.
The first would be (from smallest to largest).
Species
Genus
Family
Order
Class
Phylum
Kingdom
Domain
The other would be:
Atom
Molecule
Cell
Tissue
Organ
Body system
Organism (Individual)
Population
Community
Ecosystem
Biosphere
Hope this helps c:
Answer: Mutualism
Explanation: The definition of mutualism states " interaction between two or more species where each species has a benefit". The bird is getting food from the insects and the horse is getting the insects removed. Both are benefited.