What is a blastocyst

A. a sperm fused with an egg

B. a structure that nourishes the fetus

C. a ball of about 100 cells

D. an unfertilized egg

Why is lightning dangerous?

Select all that are true regarding ventricular balance. The right ventricle has to pump blood farther than the left. The left ventricle is larger and stronger than the right.

Which actions have a positive effect on air resources? using fossil fuels using solar energy walking to work or school using trains or buses to commute removing vegetation such as trees and shrubs

A nurse is caring for a client with pulmonary tuberculosis. what must the nurse determine before discontinuing airborne precautions?

Lipids are a poor source of stored energy. lipids are a poor source of stored energy. a. True b. False

What process reshuffles allele combinations between homologous chromosomes? a. genetic recombination b. asexual reproduction c. independent assortment d. mitosis

If there was a fungicide that killed all fungi, make a prediction on how that would affect the ecosystem and eventually us humans

Why do you think a fracture involving the bones of the nasal cavity could affect the cranial cavity?

Define the mechanical differences of elastin and collagen then explain the influence of these differences on tensile strength of skin

How does a diurnal lizard stay cool?