<span>A super nova can trigger the begining of a new star's life cycle. A star produces energy by converting hydrogen gas to helium. Once all the hydrogen in the core is used up a super massive explosion called a super nova can be triggerd. The resulting explosion leaves behing gas and dust which can eventually be pulled together by gravity over millions of years triggering the birth of a new star. Only massive stars end their lives in a supernova. </span>
Answer:
Sonography
Explanation:
sonography is an ultrasound, which is what most people are used to hearing.
Answer:
The temperature of terrestrial diurnal reptiles rises when the external temperature rises. However, in extreme high-temperature conditions, they need to seek a shelter with some kind of shade (for example, they hide under a rock) or they dive in the water in order to cool down
Explanation:
Terrestrial diurnal reptiles have a homeostatic regulatory mechanism known as thermoregulation, by which their body temperature may be lowered by the loss of heat (i.e., by radiation, convection and evaporation). On the other hand, these species can also raise their body temperature by heat conduction, i.e., by transferring heat from the substratum/air to the body. In consequence, when the environmental temperature is extremely high (e.g., 55°C), terrestrial diurnal reptiles need to seek a shade or some cooler spot where heat can be dissipated, i.e., where their body temperature can be lowered to normal values (27°C-35°C).
Answer:
Sugar is broken down to generate adenosine triphosphate (ATP) molecules that are used for energy.
Explanation:
All living organisms (unicellular and multicellular) need energy to carry out daily life processes. Respiration is considered to be the key process during which several reactions take place in a series and lead to the synthesis of energy rich molecules called ATP. These molecules serve as potential source of energy and are used by organism upon need.
Now, the respiration can be of two types, Aerobic or An-aerobic. They simply mean the process that take place in the presence or absence of oxygen.
Let's go though the equations of Aerobic and An-aerobic respiration.
Aerobic respiration:
Normally happens in all organisms including humans.
- glucose + oxygen → carbon dioxide + water (+ ATP made)
An-aerobic respiration:
That occurs human muscle cells during stressful exorcise
- glucose → lactic acid (+ ATP made)
Type of respiration in Yeast cells
- glucose → ethanol + carbon dioxide (+ ATP made)
Now what is clear in all forms of respiration (no matter in humans or small organism like yeast) that sugars like glucose are broken down to generate energy rich Adenosine tri-phosphate (ATP) molecules. So option D is best option.
Hope it helps! :)