Answer: One sign of physical change is melting, freezing.
The answer is; A
In pteridophytes, the sporophytes (of the haploid stage) produce spores. The diploid stage in pteridophytes may occur when tow spores fuse and develop into a prothallus (diploid stage of the pteridophytes).
Fungo too produces spores by the sporangiophores (haploid stage). Occasionally, two horizontal hyphae between two species of fungi, may fuse at the tips and form a zygote through karyogamy and plasmogamy.
Answer:
The correct match is compound fracture: the fractured bone ends penetrate the skin. Letter A
Explanation:
<em>A compound fracture, also known as open fracture, is a fracture in which there is an open wound or break in the skin near the site of the broken bone. Most often, this wound is caused by a fragment of bone breaking through the skin at the moment of the injury.</em>
Answer:
Pheromones
Explanation:
Pheromones play an important role in the behavioral isolation of insect species. These compounds serve to identify individuals of the same species and of the same or different sex. Evaporated molecules of volatile pheromones can serve as a wide-reaching chemical signal. In other cases, pheromones may be detected only at a short distance or by contact.
The cytoskeleton is in both prokaryotes and eukaryotes.
