Q: Convection is the transfer of thermal energy by particles moving through what? Read this paragraph and choose the correct option from the provided answers: Convection is the transfer of thermal energy by particles moving through a fluid. Particles transfer energy by moving from warmer to cooler areas. That's how energy is transferred in the soup in Figure above . Particles of soup near the bottom of the pot get hot first. They have more energy so they spread out and become less dense. With lower density, these particles rise to the top of the pot (see Figure below ). By the time they reach the top of the pot they have cooled off. They have less energy to move apart, so they become denser. With greater density, the particles sink to the bottom of the pot, and the cycle repeats. This loop of moving particles is called a convection current . Choices: - Solid - tissue - Metal - fluid A:
fluid

(Question)
Q: Many of the protist species classified into the supergroup excavata are asymmetrical, single-celled organisms with a feeding groove "excavated" from one side. this supergroup includes heterotrophic predators, photosynthetic species, and these? Read this paragraph and choose the correct option from the provided answers: Excavata Many of the protist species classified into the supergroup Excavata are asymmetrical, single-celled organisms with a feeding groove "excavated" from one side. This supergroup includes heterotrophic predators, photosynthetic species, and parasites. Its subgroups are the diplomonads, parabasalids, and euglenozoans. Diplomonads Among the Excavata are the diplomonads, which include the intestinal parasite, Giardia lamblia (Figure 23.10). Until recently, these protists were believed to lack mitochondria. Mitochondrial remnant organelles, called mitosomes, have since been identified in diplomonads, but these mitosomes are essentially nonfunctional. Diplomonads exist in anaerobic environments and use alternative pathways, such as glycolysis, to generate energy. Each diplomonad cell has two identical nuclei and uses several flagella for locomotion. Choices: - insects - reptiles - mammals - parasites A:
(Answer)
parasites

Ques: Q: Because pathogenic bacteria typically cause disease by releasing exotoxins or endotoxins, they have potential use as what type of weapon? Read this paragraph and choose the correct option from the provided answers: Choices: - radioactive - pandemic - nuclear missile - bioterrorism A:
Ans: bioterrorism

(Q).
Q: Ecosystem dynamics include more than the flow of energy and recycling of matter. ecosystems are also dynamic because they? Read this paragraph and choose the correct option from the provided answers: Ecosystem dynamics include more than the flow of energy and recycling of matter. Ecosystems are also dynamic because they change through time. Choices: - stay the same - recreate exactly alike - never move - change through time A:
(A).
change through time

Ques:Q: What is a germ cell that divides into gametocytes during gametogenesis? Read this paragraph and choose the correct option from the provided answers: From gametogonium (plural, gametogonia ), male and female gametes develop differently - males by spermatogenesis and females by oogenesis. A gametogonium is a germ cell that divides into gametocytes during gametogenesis. Male gametogonia are called spermatogonia , and female gametogonia are called oogonia . However, the following pattern is common for both oogonia and soermatogonia (chromosome numbers depict human chromosomes):. Choices: - cocklebur - gonads - pollenation - gametogonium A:

Ans:gametogonium

Ques:Q: What measures the force of gravity pulling on an object? Read this paragraph and choose the correct option from the provided answers: Weight measures the force of gravity pulling on an object. The SI unit for weight is the Newton (N). Choices: - density - volume - velocity - weight A:

Ans:
weight