What molecule allows a blade of grass to stand up straight

Hypovolemia is a condition in which a person has low levels of blood volume in their body. Which might be a reason for hypovolemia? Poor diet Dehydration arteriosclerosis lack of exercise

In simple unicellular organisms transport of materials occurs by what

Crop rotation involves? A: Killing Pests B:Planting different crops each year C:Making more work for farmers D:Planting cheaper seeds

Describe which nitrogen bases are able to bond with each other?

Figure 1-1 shows that tree finches and ground finches are descended from a common ancestor. this example represents which big idea in biology

Statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected? a. caribou calf survival is directly related to annual rainfall amounts.

Since plant cells do not have centrioles, how do they make spindle fibers during mitosis?

Plants use sunlight to produce some ATP during photosynthesis. How do plants produce ATP when the Sun is not out? a. Plants are secondary consumers. b. Plants also use cellular respiration. c. Plants extract ATP from the stars. d.

Describe 4 ways that we know the global climate is changing

What does each individual node in a cladogram represent