Why is the energy transfer between trophic levels not even close to 100% efficient

An asteroid can have a moon if the

Which statement about blood pressure is true? Group of answer choices The top number of blood pressure reading represents the pressure exerted on the vessels when the heart is relaxing Factors that can increase blood pressure include stress, a high

Match the following. 1. A feature which identifies and distinguishes one living thing from another dichotomous key 2. A two-choice sorting device used in taxonomy characteristic 3.

Why does a virus stay in a person for life, such as hepatitis

Why must density be calculated instead of directly measured?

How does a mutation in dna cause a disease that affects multiple organs?

Dylan is on a strict vegan diet. He doesn't consume meat, fish, eggs, or dairy products. Which nutrient is difficult to obtain naturally from a vegan diet

Determine what each letter represents in the Punnett square. Letters A and B represent the genotypes of the

What vessel returns filtered blood to the inferior vena cava

Which of these is true for bacteria because they are prokaryotic cells a - they can destroy neutrophils b - they are much smaller than lymphocytes c - they can invade macrophages d - they are much larger than killer T cells