Answer:
3. haploid; diploid
Explanation:
Sperm is male gamete or often called male reproductive cell. During the process of spermatogenesis, reductional division (meiosis) occurs in the spermatocytes and spermatids are formed which further mature to sperms. Thus as a result of meiosis, their chromosome number is reduced to half and thus they become haploid cells. During oogensis, eggs are also formed as a result of meiosis which reduces the chromosome number and so eggs are also haploid.
When during fertilization, these two haploid nucleus of these cells fuse together, they form a diploid zygote.
Alternative ways of representing nucleic acid chains, in this case a single strand of DNA containing only three bases: cytosine (C), adenine (A), and guanine (G). ... This structural difference is critical to the different functions of the two types of nucleic acids.
Answer:
Explanation:
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
"The organisms found in the shady area beneath a tree will be different from those found in the rain puddle" statement is most likely true regarding the organisms found in these two microhabitats.
<u>Option: B</u>
<u>Explanation:</u>
The narrow-scale environmental conditions of a specific entity or an organism population is understood as microhabitat. With relation to given statement, birds who protect themselves from getting wet because it become barrier for them to fly high and search food, at the same time the worms and snakes kind organisms enjoy rainy season by coming out from their holes, because they find difficulties in surviving outside their shady area during humid or summer season. Each habitat contains numerous microhabitats with subtle differences in exposure to light, humidity, temperature, circulation of air, and many other considerations.