The answer is a. basalt. Gabbro rocks are more related to basalt in terms of chemical characteristics. They are both igneous rocks but basalt is an extrusive rock that cools quickly while gabbro is intrusive and cools slowly. So, basalt rocks are fine-grained while gabbro are coars-grained.
The <u>urethra</u> is an organ which communicates with the lower bladder in order to enable excretion of urine from the body of a living organism.
<h3>What is an excretory system?</h3>
An excretory system refers to a living system that is saddled with the responsibility of removing waste products from the body of a living organism, so as to prevent damage to the body and help maintain homeostasis.
Based on scientific information, the <u>urethra</u> is an organ which communicates with the lower bladder in order to enable excretion of urine from the body of a living organism.
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<h2>Cell Cycle
</h2>
Explanation:
Eukaryotes grow and divide by cell cycle.
The main parts of a cell cycle are an ordered series of events – Gap 1 or G1 phase, Synthesis or S phase, Gap 2 or G2 phase, and the mitosis or M phases.
Interphase period (G1, S, G2 phases) - cell grows by size, duplicates its content, replicates its DNA, and finally prepares for mitotic cell division
.
Mitosis and cytokinesis - formation of two identical daughter cells
Cell cycle is regulated by regulatory or restrictive checkpoints in the cell cycle which are activated with detection of a defective DNA.
Proliferation of undesired or cells with defective DNA like in case of tumor cells is controlled by the action of suppressing agents like p53 and cyclins.
The tumor suppressor gene protein p53 prohibits division of tumor cells. Cyclins regulate cell cycle by activation of the enzyme cyclin-dependent kinase.
Answer:
telophase || begins after the separation of sister, chromatids in this phase individual chromosomes reach at pole nuclear membrane starts getting formed around them and cytokinesis take place cytokinesis is the division of cytoplasm this result in the formation of four daughter cell which are haploid.
<span>Despite the important organs in the human and animal body, its behavior is still not clearly defined. <span>Traumatic
accidents, burning, orthopedics and cosmetic products rarely require
further study of human skin that needs to observe actual skin behavior
in certain conditions.</span></span>
