(Q).
Answer the following question given this paragraph: Blastocyst. The blastocyst consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast. The blastocyst fluid-filled cavity is also known as the blastocoel or blastocoele. Q: What structure consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast? Choices: - nucleus - cytoplasm - cell wall - blastocyst A:
(A).
blastocyst

(Q).
Answer the following question given this paragraph: The thermosphere is the layer above the mesosphere. It rises to 600 kilometers (372 miles) above the surface. The International Space Station and other space stations orbit Earth in this layer. Q: What is the name of the layer above the mesosphere? Choices: - exosphere - lithosphere - intersphere - thermosphere A:
(A).
thermosphere

(Q).
Answer the following question given this paragraph: Carbohydrates are an important group of biological molecules that includes sugars and starches. Q: Carbohydrates are an important group of biological molecules that includes sugars and these? Choices: - fats - vitamins - proteins - starches A:
(A).
starches