Answer:
B) rough ER → Golgi complex → Golgi vesicle → extracellular fluid
Explanation:
- Insulin is synhtesized by beta cells of pancereas (preproinsulin).
- Insulin enters the rough endoplasmic reticulumn in its inactive form (proinsulin).
- The rough endoplasmic reticulumn converts it to active form (insulin).
- The rough endoplasmic reticulumn transfer the insulin to glogi comlpex
- The Golgi complex secrete it in golgi vesicles to cytoplasm.
- On the stimulation of beta cells insulin is secreted to extracellular fluid..
When comparing the birth patterns of humans and non-human primate, Rosenberg and Trevathan discovered some very clear differences:
1. The human period of labour and child birth is exceptionally long and painful compared to other non-human primates.
E.g. a human labour can last anywhere from 10-20 hours while that of a chimpanzee lasts only 2 hours.
2. Humans have the ability to walk straight, the trade off however is that it is extremely difficult and painful to give birth to a big brained human baby.
1) Interphase is the longest phase and most of the cells are present in that very stage !!
2) Interphase is the longest phase and Anaphase is the shortest phase !! Interphase is the longest phase as in this phase the cells prepare themselves for dividing and it takes most of the time for gathering energy for division ; in this phase DNA also replicate !!
3)
Interphase: DNA replicates;
Prophase: Nuclear membrane starts disappearing and Centrioles go on opposite poles !! DNA condense to form Chromosome.
Metaphase: Chromosome attach to spindle fibre and starts to move to equitorial plate.
Anaphase: Centromere divide and half the chromatid goes on either pole
Telophase: Nuclear membrane starts to reassemble; Chrmosome goes to normal uncoiled state ; Other organelles starts appearing
Cytokinesis: Cell furrow forms and cell divides into two half.
4) In dividing cell nucleus membrane is absent while in non dividing cell the membrane is intact
5) Tip of the onion root is meristamatic cell which divides but if it is permanent cell ; there would be no division !!
The turtle is a slow animal, a terrestrial or marine reptile of the order of the Testudines in the subclass of Chelonians, characterized by a protective shell, enclosing its body and covered with scales. Sea turtles are also included.
The right answer to this question is E.
Two arguments support this answer:
First of all the turtle has no hair and has no placenta (he lay eggs so he is oviparous).
The turtle possesses jaws and limbs.
The answer is B. gibberellins
