Chemical composition is always a property of an ore.
The correct answer is option A, that is, Phylum Porifera.
The species of Phylum Porifera are aquatic, that is, mostly marine. They exhibit cellular grade of the body, they are diploblastic animals with asymmetrical symmetry. They lack body cavity and exhibits a holozoic mode of nutrition with intracellular digestion.
They lack circulatory and nervous system and possess the tendency to regenerate their parts of the body. The organisms in phylum Porifera exhibits both asexual and sexual mode of reproduction.
The era of Enlightenment was characterized by:
- Governments exist to serve the people.
- The social contract allows for consent of the governed.
- The divine right of kings to rule with absolute power is a violation of the social contract.
- Governments that break the social contract must be overthrown.
- All citizens are born with natural rights to life, liberty, and property.
- Use of reason can solve government problems.
<h3>What is an era?</h3>
An era is a time period which is characterized by a certain event or occurrence.
An era is defined by certain way of life or culture both written and spoken.
Some of the various eras of human existence are:
- Middle Ages
- Scientific Revolution
- Enlightenment
- Era of Good Feelings
In conclusion, the various eras of human existence have various characteristics.
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Answer:
This question is incomplete as it lacks options, however, it can be answered. The answer is:
CARBON DIOXIDE (CO2)
Explanation:
Cellular respiration is the process by which glucose is broken down in an organism's cell to release energy. Although the process involves series of reactions, however, the general equation is as follows;
C6H12O6 + 6O2 ➡ 6CO2 + 6H2O + energy
Based on the above equation, the inputs are glucose and oxygen while the outputs are carbon dioxide and water. Carbon dioxide (CO2) is the major byproduct of the respiration process.
Answer: The diagram attached is known as the nephron,it is labelled from A to E, the structure labelled E which is known as the COLLECTING DUCT can be influenced by hormones to change the concentration of urine.
Explanation: Antidiuretic hormone ADH is one of the hormones that is produced by the anterior lobe of the pituitary gland of the endocrine system,this antidiuretic hormone performs certain functions of which one is that it helps to increase the rate and amount of water that is reabasorbed in the distal convulated tubule of the nephron during the second stage of urine formation,when these water are reabsorbed,the urine being produced becomes more concentrated and there is a further reduction in the volume/quantity of urine produced.
When this volume of urine is decreased/reduced, plasma osmolarity increases in reaction to the decreased volume of urine.
Urine are also reabsorbed in the collecting duct.
