What is the y intercept of the line with the equation 4x + 2 = 12

Select the correct level on the energy pyramid. The energy pyramid shows the flow of energy through a temperate forest ecosystem.

Membrane phospholipids have hydrophobic heads that face the center of the membrane and a. have hydrophilic tails that face outward and are exposed to water. b. are able to drift about in the plasma membrane. c.

The fluid part of the circulatory system is called

Which of the following statements correctly describes a difference between plant cells and animal cells? Plant cells have an envelope surrounding the nucleus. Animal cells do not. Animal cells contain mitochondria. Plant cells do not.

Which of the following changes in deciduous forests occurs in the winter? a. Trees regain their leaves. b. Trees block the flow of water and nutrients to their leaves. c. The leaves of trees begin to lose their chlorophyll. d.

Choose all the right awnsers. each new cell produced by mitosis: 1) obtains new traits. 2) inherits all traits from its parent. 3) is identical to the parent's structure. 4) is different.

A researcher proposes a model to explain how enzyme-substrate interactions determine enzyme specificity. The model is based on the idea that substrate molecules form favorable interactions with the amino acid side chains in an enzyme's active site.

Cells can make proteins that need to be transported out of the cell and moved to another part of the body. Cells also make carbon dioxide as a waste product of cellular respiration. Proteins are large molecules; carbon dioxide is a small molecule.

What type of intrusive igneous rock texture has the largest crystals? A) aphanitic B) pegmatitic C) phaneritic D) porphyritic The answer is B. I got this question right.

Explain the Importance of the biogeochemical to life on earth