For about how many years of geologic time have dinosaurs existed on earth

What features do plants use to regulate and conserve water? a. guard cells b. stomata c. cuticle d. all of the above

Using a network tree concept map, compare the excretory functions of the kidneys and the lungs

4) What is the main factor that contributes to carbons versatility? a. It has an equal number of protons and neutrons b. Its outer shell electrons are evenly spaced c. It has a four electrons in its valence shell d. It is a very large molecule

How many presents are humans made from water?

During glacial periods, the concentration of carbon dioxide in trapped air bubbles in glacial ice is ___ when compared to the concentration during interglacial periods. lower much higher higher the same

When Jacob starts running, his legs move faster and his heart rate increases. Which types of muscles are involved in these changes? A.) Skeletal muscles control his leg movement and smooth muscles control his heart rate. B.

2. According to the cladogram of primates shown, which key cultural feature was shared exclusively by only homo sapiens and Neanderthals? A. Artistic creation B. Tool building C. Walking upright D. Burying dead/religious beliefs

I am asking you to create a five paragraph (one-page paper) responding to the following prompt: In order to stop the spread of corona, beaches were forced to close.

What did Marie Curie discover radium inside

What does the genome of a transformed e coli cell contain that a normal e coli cell does not contain?