Answer the following question given this paragraph: Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle. Q: What is the body of a roundworm covered with? Choices: - thick scales - thin epidermis - slime - tough cuticle A:
tough cuticle
Answer the following question given this paragraph: The rate of evolution is influenced by how quickly the environment is changing. Long periods of gradual evolutionary change may be interrupted by short bursts of rapid change. Q: The rate of evolution is influenced by the rate of changes to what? Choices: - dna - migration - the earth - the environment A:
the environment
Q: Answer the following question given this paragraph: Protists Practice Questions 3. Found in many products, such as Petri dishes, agar is made from mucilagnious material in seaweed. Of the six phyla of algae, which phyllum/phyla would agar be made from? 4. Which of the following adjectives describe the major food source of Euglenophytes without an eyespot? a) photoautotrophic b) photoheterotrophic c) chemoautotrophic d) chemoheterotrophic e) B or C f) C or D 5. Can coral reefs exist in nutrient-poor areas? Explain. Q: Found in many products, such as petri dishes, agar is made from mucilagnious material in this? Choices: - fungi - seawater - gelatin - seaweed A:
A: seaweed
Question: Answer the following question given this paragraph: At the top of the mesosphere is the mesopause. Temperatures here are colder than anywhere else in the atmosphere. They are as low as -100 C (-212 F)! Nowhere on Earth's surface is that cold. Q: What is at the top of the mesosphere? Choices: - Troposphere - Stratosphere - Mesosphere - mesopause A:
Answer: mesopause
*Question*
Answer the following question given this paragraph: CHAPTER SUMMARY 42.1 Innate Immune Response The innate immune system serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body. Using a combination of cellular and molecular attacks, the innate immune system identifies the nature of a pathogen and responds with inflammation, phagocytosis, cytokine release, destruction by NK cells, and/or a complement system. When innate mechanisms are insufficient to clear an infection, the adaptive immune response is informed and mobilized. Q: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body? Choices: - cells immune system - super immune system - immense immune system - innate immune system A:
**Answer**
innate immune system
(Question)
Answer the following question given this paragraph: A meteoroid is dragged toward Earth by gravity and enters the atmosphere. Friction with the atmosphere heats the object quickly, so it starts to vaporize. As it flies through the atmosphere, it leaves a trail of glowing gases. The object is now a meteor. Most meteors vaporize in the atmosphere. They never reach Earth's surface. Large meteoroids may not burn up entirely in the atmosphere. A small core may remain and hit Earth's surface. This is called a meteorite . Q: What causes a meteoroid to vaporize after it enters the atmosphere? Choices: - gravitational pull - atmospheric pressure - spontaneous combustion - friction with atmosphere A:
(Answer)
friction with atmosphere