According to the octet rule, The element would want to take another electron to have eight electrons on the outer shell.
Answer:
D. blue-violet and red-orange
Explanation:
The light reactions of photosynthesis use only certain wavelengths of visible light.
Light absorbing molecules known as pigments in the membranes of a granum absorb mainly in blue-violet and red-orange wavelengths. We do not see these absorbed wavelengths. What we see when we look at a leaf are the green wavelengths that the pigments transmit and reflect.
Answer:
Coloring is important to survival because it could be bright as in a warning or camouflage so the animals arent easily spotted
Answer:
All the water that is on earth today is the water that has been on the planet. Freshwater is a million years old. The same water is flowing in a continuous loop in the form of falling as rain and snow from the clouds to the earth’s surface. Running in rivers and ponds. This is due to the water cycle. The cycle where the water evaporates in the atmosphere and is from the atmosphere and then cloud loses the water as rain or snow.
Answer:
Iodine
Explanation:
This is a trace element needed for the synthesis of the two thyroid hormone ; T4- thyroxine and T3-triiodothyronine. Four iodine molecules are added in T4 synthesis, and three for T3 synthesis. Generally T4 is the major hormone produced, but biologically transformed into active form T3.
Iodine majorly and selenium are the two trace elements needed for thyroid hormones synthesis. Therefore required amount of iodine is important in daily diet. iIn adequate supply of this leads to under production of iodine called hypothyroidism. poor brain development ( especially in kids),and goiter.
Sea foods . eggs, poultry seaweeds are rich sources of iodine.
Conversely, when excessive amount is present in the blood, autoimmune thyroid diseases can occur,including cancer developments in the thyroid gland due to hyper cell activities.