The correct answer is: d. it contains many light-sensing columns called ommatidia
Ommatidia are units that form compound eyes of arthropods such as insects, crustaceans and millipedes (these are invertebrates) and make them very sensitive to motion. Ommatidia are composed of photoreceptor cells (visual detection) surrounded by support cells and pigment cells.
The eyes of vertebrates are more complex showing that progressive improvements in the structure of the eye occurred during the evolution.
Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level. The purpose of cellular respiration is simple; it provides cells with the energy they need to function.
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Answer:
They develop in the <u><em>TESTICLES</em></u>.
Explanation:
<em><u>TESTICLES</u></em> are the two <u><em>OVAL ORGANS </em></u> that produce <u><em>SPERM</em></u> in <u><em>MEN</em></u> and other mammals, enclosed in <u><em>SCROTUM</em></u> behind the <em><u>PENIS</u></em>.
The structure on the right is saturated while the structure on the left is unsaturated (presence of double bond). At room temperature the saturated fat will be solid and the unsaturated fat will be liquid.
High consumption levels of saturated fats are associated with heart problems. Consumption of high levels of saturated fats can raise your cholesterol levels and increase risk of heart disease.
Unsaturated fats are not associated with heart problems.
An example of saturated fat would be the fat found on red meat. An example of unsaturated fat would be the fat found in nuts, avocados, etc.
The answer should be C. I remember learning about this a few years back. I hope it’s right !
