Answer:
C. The population of a community stabilizes and doesn't change in size or scope
Explanation:
The climax communities are the communities that have reached the optimal number of species, as well as the optimal number of individuals of the species in the environment in accordance to the available food sources and space. These communities are in a state of equilibrium. Basically, the ecosystem has just the right amount of species, and just the right number of individuals of the species that it can support. All these species interact with each other, benefit from each other, and contribute to the well being of the ecosystem, living in perfect balance. The climax communities also need time to be established, but they also are communities that have not experienced disturbances for quite some time.
HbA HbS
is the correct answer, just tested it
Answer:
Arteries never carry oxygen rich blood
Explanation:
This is totally wrong as most Arteries carry oxygenated blood away from.the heart to other organs and structures. Only the pulmonary artery carries deoxygenated blood to the lungs for oxygenation
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.