Recently Active Biology Questions

what is the average thickness of plasma membrane? a. 100-150 aμ b.75-100 aμ c.60-75 aμ d.75-100 aμ ...

What is the GERL system. Could someone please suggest a site on which i can find lots of info about it? Thanks in advance. ...

In the Vedas of class IX, i has been said that light saturation occurs at 10% of the full sunlight. But in the Chakravyuh test analysis, it is said that the percentage of light energy fixed in photosynthesis is generally arou ...

I am doing a project on the GERL system. what are the various subtopics on which I should write? ...

______ begins when the chromosomes arrive at the spindle poles. a) Prophase b) Metaphase c) Anaphase d) Telophase ...

Which of the following matches is incorrect? a) Organelle Function Presence (a) Ribosome secretion of enzymes plant and animal cell b) (b) Mitochondria site of respiration animal cell only c) (c) Chloroplast storage of cell s ...

The property of being able to perceive changes in the environment and react is a) Organization b) Spontaneity c) Sensitivity d) Homeostasis ...

In a cell with 4 chromosomes, how many sister chromatids are visible during telophase? a) 0 b) 8 c) 4 d) 16 ...

Which of the following receives oxygenated blood from the lungs? a) Right atrium b) Left atrium c) Right ventricle d) Left ventricle ...

what are lipoproteins? ...

If anyone is able to help me out,I will be very glad. I can't answer some questions on my own. Name the following :- 1) The fully developed part of ovary containing a mature egg. 2) Inner membranous layer covering brain and s ...

Viruses are made of a) Lipoprotein b) Glycosides c) Nucleoprotein d) Lipids ...

How do flies and other insects walk up walls without falling? ...

The lungs are enclosed by a double-layered membrane which is called a) Pleura b) Bronchi c) Pericardium d) None of the above ...

24)Which of the following statements is/are true regarding cell structure? (i) The nucleoplasm and the cytoplasm together make up the protoplasm (ii) Chloroplasts are type of plastids, which occur in plant cells (iii) In many ...

i m confused with the order of the outer layers of the eyes... SCLERA CORNEA CONJUNCTIVA... which 1 comes the first...can some1 arrange it inn right order... thnks in advance... :) ...

1. a) analogous organs indicate ---------- evolution. b) --------were functional in ancestors but are rudimentary in modern descendants. 2.under which category does it lies..??? homologous or analogous..??? a) potato and runn ...

when the gametes fuse to form the zygote...both the male n the female gametes, they contribute half the genetic material...do they contribute half their chromosomes..???....i don't think so...n if they do not contribute then ...

what is the function of the androgen that is being secreted by the "leydig cells"?? ...

the lacrimal glands in our eyes...secrete a lubricating liquid each time we blink our eyes...one reason for the nessecity of this fluid is that it keeps our eyes moist...so..why do we require to keep our eyes moist..???? ...

Are cardiac muscles striated? ...

When there are itchy, red, raised, scaly patches that may blister and ooze and look like a ring, what is the disease called and among bacteria, virus and fungi what is the causative agent? ...

Blood group A has antigen A and antibody anti B. Blood group O has no antigen. If blood group A is given to a person having blood group O, antibodies (anti A) develop in the person and hence, clumping occurs. But, if O is giv ...

AB- blood can be donated to a person with a. A+ blood group b. AB+ blood group c. O- blood group d. B- blood group ...

Which of the following is smaller: atom or molecule? ...

Which cytoplasmic organelle is expected to be well-developed and abundant in those cells? ...

y do v feel sleepy after a heavy diet...??? ...

what is genome???? ...

Why do our fingers get wrinkled when exposed to water for a long time? ...

What is the function of ear lobes? ...