Answer:
The starfish Pisaster ochraceus is a keystone species in the rocky marine intertidal communities off the northwest coast of North America. This predatory starfish feeds on the mussel Mytilus californianus and is responsible for maintaining much of the local diversity of species within certain communities. A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether. This means that if the species were to disappear from the ecosystem, no other species would be able to fill its ecological niche.
Explanation:
Hope this helps!
Answer:
A.
Explanation:
Because they move faster then warm fronts.
The first blank is osmosis, I'm not sure about the second
Answer:
Feeds that are high in energy include greater than 70% Total Digestible Nutrients (TDN) and low in fibre includes less than 18% Carbon fibers (CF) and less than 20% protein.
Feeds with low fiber content and a high nutrient content includes Cereal grains such as wheat, barley, corn, oats, rye, and sorghum grain.
The correct answer would be D, because the ending result for mitosis is 2 diploid cells, meaning the number chromosomes are the same. While in meiosis, the ending result is 4 haploid cells. Because the cell was divided twice, this means that each daughter cell has half of the number of chromosomes.
