Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

O cell membrane

O cytoplasm

O endoplasmic reticulum

O mitochondrion

Which process in the body is primarily controlled by testosterone?

What role does hypothalamus play to regulate the body temperature?

Explain why it is useful for the pancreas cells that secrete digestive enzymes to have lots of rough endoplasmic reticulum and Golgi apparatus

Which of the following statements about maltose are correct? 1. it is formed from two monosaccharide molecules of the same type 2. it is soluble in water 3. it is a reducing sugar

A red bull is crossed with a white cow and all of the offspring are roan, an intermediate color that is caused by the presence of both red and white hairs. this is an example of genes that are

All bacteria are classified as A. Eukaryotes. B. Prokaryotes. C. Archaea. D. Protista.

All the systems of the body work together to keep the internal environment of the body constant within certain limits. this process is called a. homeopathy. b. homoeostasis. c. positive feedback. d. neuroglia.

An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill serves as a:

Linear equations 4x+17=-15 solve in one variable.

Because genes close together on a chromosome tend to be inherited together, they are said to form a