Because though it is a field of study aimed at proving the existence of mystery animals these animals have never been seen by the human eye and they also are superstitious in existence, unlike other animals we know 100% exist. Therefore this cannot be considered true science.
Please vote my answer brainliest. thanks!
Answer:
D. Na has one fewer valence electron than Ca.
Explanation:
Elements in different groups has been grouper based on the number of valence electrons they possess. Valence electrons refers to the electrons at the outermost part of the shell of an atomic element.
Sodium (Na) belongs to group 1 on the periodic table meaning that it has one number of valence electrons while Calcium (Ca) belongs to group 2 meaning that it has two number of valence electrons. Hence, Na has one fewer valence electron than Ca.
Though I am unsure of the answer myself, I've recently studied cells in school. I believe that the series of sacs and tubes are collectively called the endoplasmic reticulum, located mostly near the nucleus in the center of the plant or animal cell.
The correct answer is:
b.The benefits outweigh the disadvantages.
Explanation:
Natural changes to the ecosystem transfer to the environmental phenomenon that occurs naturally. Natural changes hold floods, volcanic activity, hurricanes, dehydration, and earthquakes. They can be deadly, but they also have benefits.The benefit of the flood is, for example, contributing nutrients to the soil that were wanting. Also, there may be the relocation of fishes and organisms existing in water bodies, which develops the ecosystem.
<span><span>The
answer is ‘transported in blood or hemolymph are all under the control of the
pituitary gland’. The pituitary is the
master gland because it controls
functions of other endocrine glands that produce different hormones.</span> <span>Hormones allow
communication between organs and tissues
for physiological regulation and behavioral activities, such as digestion, metabolism,
respiration, and tissue function. </span></span>
