Answer:
Indirect contact transmission occurs when there is no direct human-to-human contact.
Explanation:
There are two types of contact transmission: direct and indirect. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person. Indirect contact transmission occurs when there is no direct human-to-human contact.
B. Group B only
C. Both group A and group B
D. Neither group A nor group B
Answer:
B. Group B only
Explanation:
Control group is a research group that does not receive the substance being tested in the experiment. In the case shown in the question above, the experiment sought to test the effectiveness of a specific fertilizer in the growth of bean plants. For that, plants received the fertilizer (which is the tested substance) while plants did not receive the fertilizer (received only water), in this case, the plants that received only water are the control group of this experiment.
external stimulus
internal stimulus
inborn stimulus
The correct answer is B. external stimulus
I did the test too XD Hope you do well!! ^w^
The correct answer is option D, that is, the four electrons in its outer shell.
Carbon is a very common constituent of matter as it can combine with other elements and with itself. It can produce a huge array of compounds, varying in size from just a few atoms to thousands of atoms.
Carbon is a nonmetal in the periodic table group 14. Carbon has four valence electrons, the valence electrons refer to the electrons in the outer energy level of an atom, which takes part in chemical bonds.