Answer:
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
Atom: has equal number of +ve charge (protons) and -ve charge electrons and hence atom has charge.
Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.
Answer/Explanation:
Essential nutrients such as nitrogen, phosphorus, at specific moderate level are needed for the overall functionality of the aquatic ecosystem. However, when excess of these elements infiltrates the aquatic ecosystem, the nutrient overload causes a surge in the growth of aquatic plant. For example, algal bloom. These increased growth of aquatic plant further takes up space and oxygen, prevents sunlight and later leads to what is known as "dead zone". It is a condition of an ecosystem having little or no biological activity. Aquatic life is impacted negatively when this occurs.
These are the changes that occurs as a result of nutrient loading.
Answer:
False.
Explanation:
Sexually transmitted disease or STDs are the infections that are spresd from one partner to another during sexual intercourse. Bacteria and virus can cause STDs.
Syphilis is an STD caused by the <em>Trepanoma pallidum.</em> The individual suffer from STD experiences burning sensation at genital parts and can easily transfer the disease to the unaffected partner.
Thus, the correct answer is option (b).
The very inside of the flower, at the center is the ovary. The ovary extends upwards to become the style and then the stigma on top of that. All three of these structures combined are called the pistil. Surrounding the style can be one or more filaments each with an anther on the top which contains the pollen. Around all of those structures are the petals, when combined are the corolla. At the base of the corolla, there are green leaves called calyx.directly under the ovary is the peduncle or stem. Please see the attached diagram for more information.
<span>Decomposers break down dead
or decaying organisms, and in doing so, convert their basic materials
into forms more useful to the biological community, particularly plants.
The main decomposers in the environment include bacteria, fungi and
worms. Each of these plays a different, but overlapping, role in
decomposition</span>
