Answer:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels globally as well as locally that puts the everything on risk.
Explanation:
Many nations are coming together with a common goal to fight with the climate change and its various impacts on the global level, is a very good initiative for the better future and human well fare.
Humans are continuosly exploiting the natural resurces and influencing the climate by increasing green gases which increases the temperature of the earth by buring fossil fuels, deforsting, industrilizing and many more direct and indirectly. This is not occur in local level alone but it is golbal problem which result in climate change, melting of glacier increasing sea level and manny more.
Explanation:
Crossing over, or genetic recombination contributes to genetic variation and diversity.
In early Prophase I of meiosis, crossing over occurs. This is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined. The chromosome pairs form tetrads held together at chiasmata.
Further Explanation:
All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained. Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell.
During the process of prophase I one the nuclear envelope containing chromosomes has only partly broken down homologous chromosomes are joined together by proteins and a complex or pairing call synapsis- corresponding genes on chromatids are aligned precisely. The syanpsis allows for crossing over which is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined.
Crossing over contributes to genetic variation and diversity; novel gene combinations in gametes are formed, which are not present in parent chromosomes. Genetic diversity describes all the genetic characteristics or traits within a species.
Learn more about mitosis at brainly.com/question/4303192
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Answer:
I believe the answer is C
Explanation:
You are correct, it is an embryo. I'm pretty sure the child is called a fetus for the rest of the pregnancy.
<span>The white blood cells are the ones who leave the blood and enter
tissues to fight off pathogens and invaders. The answer is letter D. They are
not platelets because platelets help the healing of wounds and prevent it from
bleeding by forming blood clots on the wounded area. They are not red blood
cells because they carry oxygen all throughout the body organs. And they are
not capillaries because capillaries are the ones that transports the oxygenated
blood into the arteries.</span>
