I assume true because if it doesn't have enough space the plants roots will become cramped and alter the rate of growth of the plant. Imagine trying to grow an apple tree in a pot, it obviously won't develop properly due to so little space provided.
true
nitrogen
False
Parasites can limit the growth of a population. They take nourishment from their hosts, often weakening them and causing disease or death. As the population of parasites grow, the population of their hosts tend to decrease.
false
False. We are often exposed to low dose radiation.
its true because plants have to face the sun and in order to do that they need to share space with trees
Phosphorous is often a limiting factor in environments because plants need phosphorous to maintain their cellular biology. If there is insufficient phosphorous, plants will be stunted or not grow at all. If there is too much phosphorous, plants also have a difficult time or won't grow. Phosphorous uptake is not something that plants can control with certainty, and phosphorous could be a limiting nutrient in a given area under study. Use the link to the Wikipedia article on phosphorous and see what is posted on phosphorous and biology.
nitrogen
greatest
nitrogen is often (though not always) the limiting factor in plant growth, and since both the ammonium (NH3) and the nitrate (NO3) both contain nitrogen (N) and plants can absorb both these molecules, it can inhance plant growth.
A limiting factor is whatever resource needed by the organisms in the ecosystem is most scarce in proportion to the resources demand. For example, a limiting factor in a desert could be water because all the organisms need a lot of water, but there is not a lot of it.
False
Parasites can limit the growth of a population. They take nourishment from their hosts, often weakening them and causing disease or death. As the population of parasites grow, the population of their hosts tend to decrease.
Parasites can limit the growth of a population. They take nourishment from their hosts, often weakening them and causing disease or death. As the population of parasites grow, the population of their hosts tend to decrease.
Statements with superlatives are often false because strong statements are easy to disprove.
False
C is incorrect as there are cold deserts, some of which are always cold.