The relationships between a community of plants and animals and their environment are known as a(n) a. food chain b. food web c. ecosystem d. life cycle

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms