Bivalves are protostomes, as they belong the to phyla Protostomia. They are freshwater/marine molluscs, whose body is covered by a protecting shell. They do not have a head, and some of their examples include oysters, clams, mussels etc.
Answer:
Grass-fed beef is the most sustainable choice. Grass-fed beef represents a net gain for the human food supply because cows eat grasses that we can’t eat (from land that is typically unsuitable for human crops) and turn it into beef that we can eat.
Explanation:
Cattle raised on a primarily foraged diet are termed grass-fed or pasture-raised; for example meat or milk may be called grass-fed beef or pasture-raised dairy. The term "pasture-raised" can lead to confusion with the term "free range", which does not describe exactly what the animals eat.
That said, grass-fed cows eat (mostly) grass, while grain-fed cows eat (mostly) an unnatural diet based on corn and soy during the latter part of their lives. To maximize growth, the cows are often given drugs, such as antibiotics and growth hormones.
False, it's extremely difficult for scientists to agree upon what makes relatively close species different when it comes to extremely technical factors. Whether something is simply a single deformation of a specimen/family or the discovery of an entirely new species. However there are species that are concretely defined, like humans, and it's unlikely that evolution will introduce a new version of humanity any time soon - but if it came to be that 5000 years in the future humans were genetically a world different than how we are today, I suspect it would be a long argument on whether or not they should be classified as a new species by their scientific leaders.
It’s the moon jelly’s population.
Answer: I think its b not sure though
Explanation:
have a great day :)
