Answer the following question given this paragraph: Proteins are an essential part of all organisms. They play many roles in living things. Certain proteins provide a scaffolding that maintains the shape of cells (structural proteins). Proteins also make up the majority of muscle tissues. Many proteins are enzymes that speed up chemical reactions in cells. Enzymes interact with the substrates (reactants) of a biochemical reaction, helping the reaction proceed at a much faster rate. Other proteins are antibodies that protect you from pathogens. Antibodies bond to foreign substances in the body and target them for destruction. Still other proteins help carry messages or materials in and out of cells (transport proteins) or around the body. For example, the blood protein hemoglobin (see Figure below ) bonds with oxygen and carries it from the lungs to cells throughout the body. Q: What type of protein speeds up chemical reactions in cells? Choices: - hemoglobin - lipids - collagen - enzyme A:
enzyme
(Question)
Answer the following question given this paragraph: Q: A tadpole turns into what land mammal? Choices: - a morph - A tortoise. - a pod - a frog A:
(Answer)
a frog
Ques: Answer the following question given this paragraph: Most of the energy used by living things comes either directly or indirectly from the sun. That's because sunlight provides the energy for photosynthesis. This is the process in which plants and certain other organisms synthesize glucose (C 6 H 12 O 6 ). The process uses carbon dioxide and water and also produces oxygen. The overall chemical equation for photosynthesis is:. Q: Most of the energy used by living things comes either directly or indirectly from what? Choices: - plants - the moon - the soil - the sun A:
Ans: the sun
(Q).
Answer the following question given this paragraph: Like other arthropods, insects have three body segments and many jointed appendages. The abdomen contains most of the internal organs. Six legs are attached to the thorax. There are several appendages on the insect's head:. Q: Where are most of the organs contained in insects? Choices: - head - appendages - thorax - the abdomen A:
(A).
the abdomen
Ques:Answer the following question given this paragraph: Q: Vertebrates also require relatively large quantities of calcium and phosphorus for building and maintaining what? Choices: - brain cells - blood - metabolism - bone A:

Ans:bone
Answer the following question given this paragraph: Birds have a large brain relative to the size of their body. Not surprisingly, the part of the brain that controls flight is the most developed part. The large brain size of birds is also reflected by their high level of intelligence and complex behavior. In fact, birds such as crows and ravens may be more intelligent than many mammals. They are smart enough to use objects such as twigs for tools. They also demonstrate planning and cooperation. Most birds have a poor sense of smell, but they make up for it with their excellent sense of sight. Predatory birds have especially good eyesight. Hawks, for example, have vision that is eight times sharper than human vision. Q: Not surprisingly, what is the function of the most developed part of a bird's brain? Choices: - controlling digestion - controlling breeding - controlling thought - controlling flight A:
controlling flight