Answer:
This zygote is tetraploid.
Explanation:
An haploid cell contains a single set of chromosomes (one chromosome 1, one chromosome 2, one chromosome 3, etc.).
A diploid cell contains two sets of chromosomes (two chromosomes 1, two chromosomes 2, etc.).
Usually, two haploid gametes fuse and generate a diploid zygote, that has a set of chromosome from one parent and another set from the other parent.
If during meiosis the generated gametes are diploid instead of haploid, the resulting zygote from that fusion will have four copies of each chromosome. An organism that has four sets of chromosomes (four chromosomes 1, four chromosomes 2, etc.) is called tetraploid.
Answer:
28.57%
Explanation:
Given that:
= 10.0 mg/L
= 3.0 mg/L
We can calculate for the Original maximum deficit can be calculated which can be illustrated as follows:
where;
represents the maximum dissolved oxygen
represents the saturated dissolved oxygen
represents the minimum dissolved oxygen
= 10.0 mg/L - 3.0 mg/L
= 7.0 mg/L
We can also calculate the Desired maximum deficit by using the above expression:
In which ;
= 10.0 mg/L
= 5.0 mg/L
Now that we have all we need to replace the value; we have:
= 10.0 mg/L - 5.0 mg/L
= 5.0 mg/L
Finally, the percentage needed by the BOD for removing the waste can be determined using the following expression;
percentage = %
where;
Desired = 5.0 mg/L
Original = 7.0 mg/L
Then we have;
percentage = %
=71.43%
Required BOD = 100% - 71.43%
Required BOD = 28.57%
Hence, The percentage necessary for the BOD of the plant waste to be reduced to assure a healthy stream with at least 5.0 mg/L DO everywhere = 28.57%
Secretions from the liver and the pancreas get mixed with food here. By the time food leaves this organ, the process of digestion is complete. We are talking about A) duodenum.
Silurian Period which was formed hundreds of millions of years ago