A sperm cell and an egg cell fuse to form which structure is called a <span>zygote. The zygote is a product of fertilization of two gametes: egg cells for female and sperm cells for males. In this process,the DNA of both cells is passed to the offspring to form a new individual. </span>
The options are incorrect. The correct question with options is:
Which of the following statements is true concerning catabolic pathways?
A. They combine molecules into more energy-rich molecules
B. They supply energy, primarily in the form of ATP, for the cell's work
C. They are endergonic
D. They are spontaneous and do not need enzyme catalysis
E. They build up complex molecules such as protein from simpler compounds
Answer:
B. They supply energy, primarily in the form of ATP, for the cell's work
Explanation:
Catabolic pathways are the metabolic pathways that breakdown the complex molecules into simpler substances. The chemical reactions of catabolic pathways are mostly exergonic with a negative value of free energy change.
The released energy is stored in the form of ATP molecules. The energy-releasing reactions of catabolic pathways supply the cells with ATP molecules to perform the functions. For instance, breakdown of glucose into CO2 and H2O during aerobic cellular respiration is a catabolic process and forms as many as 32 ATP molecules.
<span>Sodium channels close when not occupied
</span><span>Sodium ions diffuse through and enter the cell.
</span>
Then they leave the cell.
The sodium diverts in the cell layer have receptor locales for acetylcholine.
The answer to your question is TROPICAL COASTS
The United Nations Conventions on the Law of the Sea (UNCLOS) declares that seabed area, which does not fall under the jurisdiction of a particular country, is a common natural heritage. The minerals of this area can be usd by anyone. Due to vast presence of sea area, and conflicting boundaries, as well as illegal mininig practices, the imposition of such laws is difficult. The very large sea areas which should not be mined, should be restrained under non mining region. But, mineral-greedy nations are not following such instructions.
The envrionmental implications of ilegal seabed mining includes, destabilisation of oceanic systems, effect on microbial systems of the sea, and danger to the creatures living in the hydrothermal vents, which are not used to light exposure.
