1000 + 500 + 2000= is the equation
Clinical trial of dubious quality to test his hypothesis about vitamin C; a clinical trial that other researchers rated as defective. In his research, there was not even a randomization to take vitamin C or not, it was simply observed the three who were given the micronutrient, without having a subject who was not given to compare results.
An ionic bond results in an exchange or transfer of electrons between the 2 different types of atoms, most likely the metal atom and nonmetal one.
For example the compound NaF is held together by electrostatic forces of positive and negative charges due to the transfer of electrons from the sodium to fluoride atom.
Answer:
C. Access to more building supplies
D. Access to medical supplies
Explanation:
The population that is described is obviously living a way of life that has been practiced until several hundred years ago. Using the river with its water and fertile deposits as the main source for production of food and water, but facing overpopulation and lack of medical supplies. In order for the most immediate needs to be satisfied, this population needs more building supplies, so that the overpopulation is resolved. Also, extremely important for lowering the death rates and improving the quality and length of life, access to medical supplies are a must, which will help this population to be much more healthy and to have much less deaths because of diseases.
Answer:
An organism that eats another organism is called a consumer.
Explanation:
In food webs, consumers are characterized by not being able to produce their own nutrients, having to acquire them from the consumption of other living beings.
Consumers are found from the second level of the food web and can be primary consumers, or herbivores, and secondary, tertiary or even quaternary consumers, who are carnivores.
The other options are not correct, due to:
<em> a. Vertebrate
: which has an internal skeleton, of a bony or cartilaginous nature.</em>
<em> c. Invertebrate: lack of internal skeleton and spine
</em>
<em> d. Embryo: is the product of fertilization, whose development occurs in the uterine cavity or inside an egg.</em>
