Answer the following question given this paragraph: Pea plants are naturally self-pollinating. In self-pollination , pollen grains from anthers on one plant are transferred to stigmas of flowers on the same plant. Mendel was interested in the offspring of two different parent plants, so he had to prevent self-pollination. He removed the anthers from the flowers of some of the plants in his experiments. Then he pollinated them by hand with pollen from other parent plants of his choice. When pollen from one plant fertilizes another plant of the same species, it is called cross-pollination . The offspring that result from such a cross are called hybrids. Q: What is it called when pollen from one plant fertilizes another plant of the same species? Choices: - cross-typing - cross-breeding - cross - vegetation - cross-pollination A:
cross-pollination
(Question)
Answer the following question given this paragraph: An ecosystem consists of all the living things and nonliving things interacting in the same area. Q: What consists of all the living things and nonliving things interacting in the same area? Choices: - biodiversity - habitat - biome - ecosystem A:
(Answer)
ecosystem
Ques: Answer the following question given this paragraph: About 85 percent of teens develop acne, like the boy in Figure below . Acne is a condition in which pimples form on the skin. It is caused by a bacterial infection. It happens when the sebaceous glands secrete too much sebum. The excess oil provides a good place for bacteria to grow. Keeping the skin clean helps prevent acne. Over-the-counter products or prescription drugs may be needed if the problem is serious or doesn't clear up on its own. Q: What is the condition called where pimples form on the skin? Choices: - blushing - cramping - dermatitis - acne A:
Ans: acne
(Q).
Answer the following question given this paragraph: All matter consists of atoms, which cannot be further subdivided into smaller particles. Q: What does all matter consist of? Choices: - carbon - helium - oxygen - atoms A:
(A).
atoms
Ques:Answer the following question given this paragraph: Oil spills are another source of ocean pollution. To get at oil buried beneath the seafloor, oil rigs are built in the oceans. These rigs pump oil from beneath the ocean floor. Huge ocean tankers carry oil around the world. If something goes wrong with a rig on a tanker, millions of barrels of oil may end up in the water. The oil may coat and kill ocean animals. Some of the oil will wash ashore. This oil may destroy coastal wetlands and ruin beaches. Q: What source of ocean pollution kills animals by coating them? Choices: - plants spill - grain spill - chemical spill - oil spill A:

Ans:oil spill
Ques: Answer the following question given this paragraph: Acid-base reactions involve a transfer of a hydrogen ion instead of an electron. Acid-base reactions, like the one below, are also not redox reactions. Q: What is transferred in an acid-base reaction Choices: - bonding ion - friendly ion - calcium ion - hydrogen ion A:
Ans:
hydrogen ion