Why are nitrogen-fixing bacteria so important to other organisms?

What brain regions make up the brainstem?

Discuss two ways that cells are alike?

In prokaryotes, a search for genes in a DNA sequence involves scanning the DNA sequence for long open reading frames (that is, reading frames uninterrupted by stop codons). What problem can you see with this approach in eukaryotes?

What structure gives animal cells a defined structure? a. cell membrane b. cell wall c. proteins d. cortex

1. How do you calculate magnification on a microscope?

How do carnivores (which eat only meat) obtain nitrogen for building critical organic molecules? A) They eat consumers, which ate plants, which absorbed it from the soil. B) They absorb the nitrogen in the ground through their skin.

In purebred Labrador retrievers, the dominant fur-color allele, B, results in black fur, and the recessive allele, b, results in yellow fur. Suppose the Happy Labrador Ranch breeds yellow and black Labrador retrievers.

Describe how traits are passed from parent to offspring

Between which two letters does mitosis occur

T or f Active immunity is passed on from a mother to her baby.