Answer:
D). B has smaller cells but more surface area than A.
Explanation:
The movement of nutrients in the cells of model B would be better as compared to the cell of model A and the key reason is that 'model B has more surface area than A despite having smaller cells.' As we know, the surface area of the cell plays a vital role in determining its efficacy in transporting the nutrients through indirect processes like diffusion as it helps in transporting the nutrients without using energy. But if the surface area is less, the flow of nutrients require more direct and active which may consume energy. Since, model B has more surface area, it will transport effectively. Hence, <u>option D</u> is the correct answer.
Answer is A. 430 as the speed of sound in water is 1498 m/s but the question has taken an approximate of 1400 m/s
Answer:
Addition of nucleotides to form a complementary strand of DNA.
Explanation:
Replication of the genetic material (DNA) is a paramount process that must be undergone by any cell prior to its division. The series of processes that occurs to the DNA molecule during DNA replication is catalyzed by different enzymes with specific functions. However, one of these enzyme callee DNA POLYMERASE catalyzes the main event, which is the synthesis of a complementary strand.
DNA polymerase catalyzes the production of phosphodiester bonds that joins the nucleotides. The enzyme synthesizes a nuceleotide base complementary to the one on the template strand, to eventually form a new DNA strand. Hence, blocking the function of this enzyme is tantamount to blocking the synthesis of a new strand itself.
Answer: i would say the answer is D
Explanation:
Answer:
Double fertilization produces a diploid sporophyte and a triploid endosperm. (Ans. C)
Explanation:
Angiosperm are plants which is known for flowering plant on the earth. The flower is reproductive parts of the angiosperm plant. They are including 4 basic parts of the flower: Carpel, Stamens, Sepals and Petals.
During angiosperm plant reproduction, 2 structure are formed which are known as the Endosperm and a Zygote. Later a Zygote will grow and form a embryo and the endosperm is known for food source of plant embryo. Endosperm and Zygote forming process is known as double fertilization and it is a unique process found in angiosperms.
Steps involved in double fertilization are:
1) The pollen tube processing to release 2 sperm cells into an unfertilized ovule.
2) When one sperm cell fuses with the eggs to the formation of zygote and another sperm fuses with the 2 polar nuclei to the formation of endosperm this process is known as double fertilization.
3) After the completion of double fertilization, a fruit and seed develop.