I'm no doctor but I would safely bet that B is the correct answer here.
Source: my mother has had five kids lol
<span>In the beginning, the body used up the ATP energy in muscles to support the enduring muscle contraction. Once the ATP is finished, the body had to switch to lactic acid fermentation in order to support a continued muscle contraction.</span>
Ions are atoms which have a missing electron or an extra one. This is what gives the ion its positive or negative electrical charge. Isotopes are atoms which contain a different number of neutrons.
Seedless vascular plants are classified into three phyla namely the club mosses, horsetails and ferns. Ferns form the numerous seedless plants with true vascular tissue, creeping underground stems called the rhizomes and large leaves called the fronds. They reproduce via spores.
Ferns crowd on the forest floors even after cutting them down. They invade the cleared zone of forest which has been cut for timber via numerous spores. The spores are in clusters called sori on the underside of the leaves. The spores develop into haploid gametophytes by mitosis. They also grow by spreading their rhizomes or from the tips of their fronds.
Living things in the environment such as plants, animals, and bacteria are biotic factors. Biotic factors also include once-living parts such as dead leaves on the forest floor. Abiotic factors are nonliving aspects of the environment such as sunlight, temperature and water. One important abiotic factor is soil.