Biology

Which of the following substances are organic

I. Lipids II. Water III. Carbon Dioxide A) I only B) II and III only C) I and II only D) I, II and III-Lipids. A. Define: Lipid: Any of a class of organic compounds that are fatty acids or their der

I'm finishing up a biology study guide, and no where can I find clear answers to these questions, help please

How does mitosis relate to cancer? How is cancer caused and what effects does it have on the cell cycle? What are stem cells and explain their importance to biotechnology? Compare Lamarck and Darwin

With todays technology why havent we cloned dinosaurs yet

You know, like in Jurassic Park? I just finished watching that movie, first time i seen it in years. Wouldnt it be great to have a pet Velociraptor in your back yard instead of a dog?-Even if one had

Which types of metabolic activity are found in prokaryotes

I. Fermentation II. Nitrogen fixation III. Photosynthesis A) none B) I only C) I and II only D) I, II and III Thanks for the help :p-D) I, II and III All are found in different prokaryotes.

Which kind of neuron connects the central nervous system to the gland

An afferent or motor neurone.

Another biology question..

84. Researchers can date bones of early humans by comparing the amount of carbon-I4 and _ _ in the bones. A. carbon-12 B. carbon-13 C. nitrogen-13 D. nitrogen-14-A. Carbon-12-A Carbon-12

How do people acclimatized to hot environmental temperatures differ from people in cooler environments

a) higher critical temperature b) lower critical temperature c) higher blood volume d) lower blood volume-a higher critical temperature blood volume has nothing to do with it so you can eliminate th

What is the magnification of the drawing (and how to you calculate it lol)

A student observes and draws an Amoeba, using the high power lens of a microscope. The diameter of the drawing is 100mm. The actual diameter of the Amoeba is 100um. What is the magnification of the dr

Vesicles in the presynaptic neuron contain __________.

Also, I have some other questions. 1. What pat of the presynaptic neuron that passes impulse to next neuron? 2. Which location is stimulated by the neurotransmitters for a specific ion to open its gat

Genetic code question!

All the following statements are correct features of the genetic code except: A. The genetic code is universal as all living organisms use the three-letter code of nucleotides of DNA molecules. B. t

What is the difference between GMOs and cloning

and the similarities, please :-) I really could use your help!-When you genetically modify an organism, lets say you incorporate a gene for a pesticide resistance in a tomato, you a get an organism w

Biology Dissection Question

Hi!I am going to be dissecting a fetal pig in my biology course soon.Out of curiosity, exactly how large is a fetal pig?I know it is somewhat large, but how big is it in relation to a more common anim

What part of the cell membrane controls what enters and exits the cell

Integral proteins is one way substances can enter and exit a cell. An example of those are active or passive transport proteins such as channel proteins and carrier proteins. Water can diffuse across

Questions to ask a biologist

Hello :) i need to interview a biology teacher for my essay. Can you think of any good questions to ask her? Ive come up with a few but I need more. Thanks in advance I love you...-Have you done any f

How does the respiratory system structure affect how it functions

Well for starters, respiratory is made of hard tubes, which are made to transport air from the exterior environment into the lungs>into the body. Then, there are many alvioli in the lungs(greater surf