<span>The discovery of thornless plants was made around the turn of the 20th century. To name one such thornless plant, particularly, the Blackberry plant, the deviation from the thorned blackberry canes were discovered in the United States. Since then, several different thornless blackberry varieties have been cultivated for fruit gardens.</span>
1.
B
Photosynthetic organisms require light, in which the sun’s rays can only go so far
2.
C
The energy flow pyramid goes from decomposers to producers, meaning that if producers are dying out due to lack of nutrients, there must be something wrong with the decomposer population
Answer:
Symbiosis or Mutualism: When two species live together in a close association that is helpful to both species, the relationship is known as symbiosis. The oxpecker bird and the rhinoceros exhibit this relationship. The oxpecker receives protection and obtains food from the ticks and other pests infesting the rhino’s skin.
Explanation:
<span>The answer would be macrocytic anemia.
</span><span>Macrocytic anemia is lack of red blood cells that caused by B12 deficiency. Vitamin B12 is mostly found in animal products (eggs, dairy product or honey) so vegan will have increased risk of deficiency. Vegetarian that doesn't eat meat also at risk of iron deficiency that will cause microcytic anemia.</span>
