When analyzing tree rings, what do scientists assume a thin ring indicates?

Which of these statements is not correct about enzymes? 1. enzymes lower the potential energy for the reactions they catalyze. 2. enzymes have specific substrates and optimal conditions. 3. enzymes are mostly proteins that function as catalysts. 4.

Belinda recently completed a treatment program for breast cancer. For the last year, she took a drug treatment that worked to interfere with rapid cell division; what type of cancer treatment did Belinda undergo?

Which of the following is found in the cytoplasm of bacterial cells? a. cell membrane b. nucleus c. genetic material d. flagella

Pros and cons about georthermal technology

I lived on a small indonesian island around 18 kya. i used stone tools to hunt animals, but i had a very small cranial capacity (around 400 cc) and a very small body. what fossil species am i?

What level of organization does the complete skeleton of a mouse belong to

Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds? Flexible wrist Flapping ability Flight feathers Primitive feathers

Where in the female reproductive system does fertilization normally occur? where in the female reproductive system does fertilization normally occur? uterine tube ovary uterus vagina?

Explain the relationship between genes, chormosomes, and traits

Newborn babies have "brown fat" cells that make a mitochondrial inner membrane protein called UCP1, that acts as a channel for facilitated diffusion of protons.