Answer:
Plants and animals are living things. They feed, respire, excrete, grow, move, reproduce and are sensitive to their environment. Animals and plants need food for energy but they feed in different ways.
Answer:
You tell her that her husband is away and will be coming back later
Explanation:
If you tell her he's dead, she won't believe you so just go along with it.
<span>previous changes in climate were dramatic but very short-lived.
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<span>The issue of whether human activities cause global climate change is indeed a controversial topic. The limitation to climate research that could be overcome through scientific design is "Data from a wide range of time periods must be analyzed." Very powerful, or Super Computers, are required to analyze large amounts of data. The sooner more powerful computers are developed, the sooner data from the wide range of time periods can be analyzed. This will give scientists a better idea of the extent of global warming, if any, and how to prevent it.
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Answer:
carbon dioxide at normal atmospheric concentrations is limiting for the metabo- lism and growth of most land plants of the world. These plants share a comparable photosynthetic metabolic pathway, termed C3 photosynthesis. With an increase in CO2 there is an increase in photosynthesis and growth.
Explanation:
Answer: The number of adenines in one strand is equal to the number of thymines in the complemetary strand.
Explanation:
Deoxyribonucleic acid or DNA is a molecule that contains the genetic information in all living organisms. So it contains all the hereditary genetic information that has the instructions to development. This DNA molecule consists of two strands that bond together to form a double helix structure. <u>Each strand of DNA is made up of nucleotides which are basic chemical components made of a phosphate group, a sugar group and one of four types of alternative nitrogenous bases</u>. The four types of nitrogenous bases found in the nucleotides are:
- Adenine (A)
- Thymine (T)
- Guanine (G)
- Cytosine (C).
<u>The sequence of these bases determines how genes are made, and each gene has different biological instructions to create proteins (that will have different functions in the organism).</u> To form a DNA strand, the nucleotides are linked together in chains, alternating with the phosphate and sugar groups.
The nitrogenous bases are complementary between them. Adenine and thymine are complementary, as are guanine and cytosine. So since adenine is complementary to thymines, and cytosine is complementary to guanine, the number of adenines in one strand is equal to the number of thymines in the complemetary strand. And the number of cytosine is equal to the number of guanine.
