What does it mean when a biologist uses the term crossing-over? why is crossing over a good thing?

Viruses cause disease like : (a) dysentery (b) malaria. (c) hepatitis B. (d) tuberculosis

The brain can determine the static position of the head due to sensors in the

What is one substance that is often associated with the mitochondria?

Would a muscle cell be able to produce a functional contraction if it lacked t-tubules?

What are the three main parts of the circulatory system?

After mitosis, how many chromosomes with each daughter cell have

Which organelle stores genetic information? Chloroplast Golgi apparatus Nucleus Ribosome

Jane was involved in an automobile accident in which both her parents were killed. When you ask her about it, she says she has no memory of the accident. What ego defense mechanism is she using?

is a fungal infection in the mouth and throat, producing sore, creamy white, slightly raised curd-like patches on the tongue and other oral mucosal surfaces.

Scientists were able to determine the age of the earth from rock samples that were analyzed. What technique was used to do this