Answer the following question given this paragraph: Cells share the same needs: the need to get energy from their environment, the need to respond to their environment, and the need to reproduce. Cells must also be able to separate their relatively stable interior from the ever-changing external environment. They do this by coordinating many processes that are carried out within organelles, or other cellular structures. Structures that are common to many different cells indicate the common history shared by cell-based life. Examples of these common structures include the components of both the cell (or plasma) membrane and the cytoskeleton, and other structures shown in Figure above . Q: Cells must also be able to separate their relatively stable interior from what? Choices: - their habitat - predators - competition and chaos - the external environment A:
the external environment
(Question)
Answer the following question given this paragraph: As living things evolve, they generally become better suited for their environment. This is because they evolve adaptations. An adaptation is a characteristic that helps a living thing survive and reproduce in a given environment. Look at the mole in Figure below . It has tentacles around its nose that it uses to sense things by touch. The mole lives underground in the soil where it is always dark. However, by using its touch organ, it can detect even tiny food items in the soil in total darkness. The touch organ is an adaptation because it helps the mole survive in its dark, underground environment. Q: Living things evolve what characteristics that make them better suited for their environment? Choices: - mutations - instincts - reflexes - adaptations A:
(Answer)
adaptations
Ques: Answer the following question given this paragraph: Interspecific competition occurs between members of different species. It may lead to one species going extinct or both becoming more specialized. Q: Which competition leads to one species going extinct or both becoming more specialized? Choices: - intraspecific - beneficial - mimicry - interspecific A:
Ans: interspecific
(Q).
Answer the following question given this paragraph: Courtesy of Dr. Triche and the National Cancer Institute. Lymphocytes are the key cells of an immune response . Public Domain. Q: What are the key cells of an immune response? Choices: - keratinocytes - erythrocytes - histiocytes - lymphocytes A:
(A).
lymphocytes
Ques:Answer the following question given this paragraph: Some of the characteristics an organism has may help it survive. These characteristics are called adaptations . Some adaptations are better than others. Q: What characteristics of an organism help it survive? Choices: - systems - additions - Changes - adaptations A:

Ans:adaptations
Answer the following question given this paragraph: DNA is located in the nucleus. Proteins are made on ribosomes in the cytoplasm. Remember that information in a gene is converted into mRNA , which carries the information to the ribosome. In the nucleus, mRNA is created by using the DNA in a gene as a template. A template is a model provided for others to copy. Q: What are made on ribosomes in the cytoplasm? Choices: - lipids - cells - enzymes - proteins A:
proteins