Answer:
B; primary consumers are the ones who eats the producers
Answer:
The blood vessel from lungs to heart is pulmonary vein which carries oxygenated blood.
Answer: humoral immune response
The main antibody isotypes in the influenza-specific humoral immune response are IgA, IgM and IgG. Mucosal or secretory IgA antibodies are produced locally and transported along the mucus of the respiratory tract by transepithelial transport and can afford local protection from infection of airway epithelial cells.
Answer:
Big mammals as bears or Mammoths.
Explanation:
Neanderthal had a diet based in different food, for example, there are some evidence that they were feed on nuts, mushroom, and moss. The quantity of veggies were different depending the season and the region of the planet the neanderthals were. Of course, most of their diet were based in meat, basically of big animals because the evidence is that they had a digestive system appropriate to eat lean protein.
Studies of the bones and the coprolites showed a ratio of different elements as nitrogen and carbon, the ratio of the heavier element to the lighter, show the relationship among the meat/vegetable diet.
Hope this info is useful.
The most likely consequence of the widespread lack of bees is loss or reduction of food. Majority of food depends on pollination and bees are major pollinators in the ecosystem, playing an essential role in food production among different type of plants. Bee’s declining population is mostly associated to excessive use of pesticides or toxicants in industrial agriculture as well as presence of different parasites or pathogens and even climate change.
