Answer:
There are two types of planets. Terrestrial and Jovian planets. One thing is common in both of them.
Both the terrestrial and the Jovian planets possess a solid core, made mostly of metallic and/or rocky material.
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Two diseases caused my defective cells is HIV (human immunodeficiency virus) and AIDS (acquired immunodeficiency syndrome).
Answer:
Constant variables
Explanation:
Elaina's investigation lacked the critical ingredient of constant variables which are important components of every scientific investigation. In every research, there are 3 important variables, namely:
1. Dependent variables: the actual variable to be measured during the course of investigations and whose values are dependent on another variable (independent variable) supplied by the investigators.
2. Independent variable: one of the variables that are supplied by investigators whose values are often manipulated to see the kind of changes it will cause to the dependent variable.
3. Constant variables: other variables that are neither independent nor dependent but constant for all the various experimental groups in investigations.
The three main types of articulations withing the human body are FIBROUS, CARTILAGINOUS AND SYNOVIAL.
Another word for articulation is joint. A joint refers to a point of contact between two bones or between a cartilage and a bone. A joint is said to be fibrous, if the bones are held together by fibrous connective tissues. A joint is described as cartilaginous, if a bone is joined to a cartilage. A synovial joint is one in which the bones are joined by various ligaments.