Answer:
I) Blood platelets are tiny, irregular cell fragments without nucleus. They aid in blood clotting
II) Because platelets lack nucleus
Explanation:
I) Platelets are also called thrombocytes. Their appearance is as tiny, irregular cell fragments.
Their major function is to aid the clotting of blood
II) platelets cannot be called "cells" because they lack nucleus
<span>Splitting apart this molecule releases energy so it can break the bonds
</span>
Answer:
Option C, Homeostasis
Explanation:
Homeostasis is a mechanism through which body maintain its state of stability/equilibrium. Thermoregulation is one of the mechanism of homeostasis by which body maintain its internal temperature. The average human body temperature is 98°F (37°C). When the external temperature increases, the body sweats or vassolidate to maintain the stable temperature.
When the external temperature decreases, the body undergo vasoconstriction or thermogenesis to main its average temperature.
Hence, option C is correct
<u>Large</u><u> seeds </u><u>advantages</u><u>:</u>
- They have a higher chance of germination and thriving.
<u>Large</u><u> seeds </u><u>disadvantages</u><u>:</u>
- They can not easily spread to new areas.
<u>Small</u><u> seed </u><u>advantages</u><u>:</u>
- They can spread easier to new areas.
<u>Small</u><u> Seed </u><u>disadvantages:</u>
- They have a lower chance of surviving.
Large and small seeds main difference resides in their structure. The structure allows them to survive or to cover new areas. The disadvantage is that it can only do one of the two things.
Large seeds, as they are larger:
- They have a structure that allows them to store more energy than small seeds. As a consequence, they have more elements to thrive and grow into a plant than small ones.
- Due to their size, they are heavier. They do not spread as far as the others.
Small seeds :
- They do not have enough energy to grow, so they need more aid from the environment than large ones. In other words, their chances of survival are lower.
- The advantage is that they can colonize wide areas due to their lightness. So, even though they are small, they spread easier and cover more territory than large seeds.
To sum up, small seeds have a lower chance of survival, but they are more and cover longer distances. While large ones have a higher chance of survival, but they are fewer and cover short distances.
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It causes muscular irritability which can lead to cramps and twitching of facial muscles.
