I don’t understand the question but if I can make a correct inference, they have thorns to protect themselves from predators.
Answer:
cardiovascular and blood vessals
Explanation:
Answer: option D) glucagon and insulin
Explanation:
The hormones glucagon and insulin are secreted by the islets cells found in the pancreas. Specifically, alpha cells of the islet produce glucagon, while its beta cells produce insulin.
Both hormones operate in opposite action, glucagon respond to low blood sugar levels while insulin respond to high blood sugar levels.
Answer:
could u possibly make the same question but with two picture cause all i can see are words ..plz
<span>If cancer, stroke, and heart disease were eliminated, demographers estimate that the life of an average 70-year-old would be extended approximately 7 years.It is because these are the major diseases that target the middle aged people.If these are eliminated people would be more heslthy and enjoy a longer life span</span>
