Brown hair (H) is dominant to blonde hair (h).

Brown eyes (B) are dominant to blue eyes (b).

Rebecca has blue eyes and is heterozygous for hair

color. Her husband has blue eyes and blonde hair.

List the genotypes of Rebecca and Thomas.

FOIL to determine possible gamete combinations.

Complete a dihybrid Punnett square.

Write the phenotypic ratio of their kids.

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate 

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

Gay-lussac's law i think.