<h2>Inside the cones of pine tree</h2>
Explanation:
- The life cycle of a pine tree starts in the strobulus, the sexual conceptive structure in a completely adult pine tree. Strobulii is otherwise called the "pine cones." Male strobulii are in the lower some portion of the tree, while the female structures are in the upper part. The strobulli are viewed as unisexual structures since they have either male or female sexual organs. The male strobulli in a pine tree contains microsporocytes, grains that in the end form into dust. In the spring months, male strobulli discharge dust into the air, which is focused on the pine tree's female strobulli.
- A pine seed finds the right micro-climate, it will in the eventually sprout and a pine seedling begin to develop. Be that as it may, pine seeds are typically discharged in a torpid state, which is regularly broken by chilly stratification. Therefore, a pine seed won't grow until the accompanying spring when warm climate and some spring dampness are available. Since pine seeds are created in rich numbers, and just a small rate should be successful in building up new seedlings.
<span>A)produce malignant tumors</span>
Explanation:
the first step in nitrogen cycle is formation of nitrates it is done by following ways.1. NITROGEN FIXATION: conversion of nitrogen into nitrates is called nitrogen fixation. it is done by three ways which include atmospheric nitrogen fixation(done by thunderstorms and lightning),biological nitrogen fixation(done by nitrogen fixing bacteria),industrial nitrogen fixation(done in industries). 2.AMMONIFICATION AND NITRIFICATION: ammonification is the breakdown of proteins and nitrogeneous wastes and nitrification is conversion of ammonia into nitrates and nitrites this procces is done by bacteria. the second step is assimilation in which the nitrates formed in the above procces are used by plants and in the third procces which is denitrification in which the nitrates are again converted into atmospheric nitrogen. I THINK IT WOULD BE HELPFULL TO YOU
When a cell divides it makes two whole new cells this process is called mitosis.
