What is the differhence between food web and food chain

Sammi was born 3 days ago and has lost 3 percent of her body weight. should her parents be concerned?

If a microscope has an ocular with a 5x power and has objectives with powers of 10x and 50x what is the total magnification of a: low power? high power? show math for full credit!

Which kingdom contains organisms with no nucleus that can survive in extreme environments? A: Fungi B: Archaebacteria C: Protista D: Eubacteria

7. In fruit flies, the gene for wing shape has an unusual allele called 'curly' (designated 'Cy'). The normal (wild type) allele is designated 'cy.' A fly homozygous for cy (cy cy) has normal, straight wings.

State two ways to keep muscles strong?

Ln mammalian cells, the synthesis of fatty acids is catalyzed by a multifunctional protein named: a) Acetyl CoA Carboxylase b) Carnitine acyltransferase c) Fatty acid synthase d) B-ketoacyl synthetase e) Acyl carrier protein

How does the energy available to organisms change within each feeding level of the pyramid? A. There is more energy available in the middle levels than in either the top or bottom level. B.

What types of environment do arthropods live in

Is a red blood cell more specialized than an amoeba, or is it the other way around?

Adaptive radiations can be a direct consequence of three of the following four factors. Select the exception. a. vacant ecological niches b. genetic drift c.