I believe the statement would be that, A magnetic field created by the electric current causes the compass needle to move.
An electric current through a conductor creates a magnetic field,such that when a charged particle such as an electron, proton, or ion is in motion, magnetic lines of force rotate around the particle. Since current moving through the wire consists of electrons in motion, there is a magnetic field around the wire, which causes the compass needle to deflect.
The options are incomplete and have been listed incorrectly. Complete question has been attached.
Answer:
C) Dd and Dd
Explanation:
It is given that deafness is a recessive trait which means that Dr. Smith has genotype dd since a recessive trait can only be expressed when both the alleles in genotype are recessive. However, his parents are normal. So his parents can have DD or Dd genotype. Dr. Smith has obtained one recessive d allele from his father and other recessive d allele from his mother. Thus, the parents should have Dd genotype and the correct option is c.
Controlled group does not change
First, we have to know the definition of the following vocabulary terms:
Abiotic = non-living
Biotic = living
Then, it's just a matter of seeing which answer choice has both a living organism and a non-living part of the ecosystem.
Correct Answer:
Algae and sunlight
- Algae is actually a living organism called a protist, which uses sunlight in a process called photosynthesis to create its own "energy" (just like plants).
- Sunlight is nonliving, but it is still an important part of the ecosystem especially for photosynthetic organisms like algae.
