The answer would be B. :)
Answer:
Lack of predators
Explanation:
The carrying capacity is the amount of organisms that the habitat is able to support. Invasive species compete with native species for limited resources including food, niche, etc. This phenomenon may have important negative effects on the survival of native species, even it may lead to the extinction if the invasive species is successful
Answer:
When a single trait is being studies, a test cross is a cross between an individual with the dominant phenotype but of unknown genotype (homozygous or heterozygous) with a homozygous recessive individual. If the unknown is heterozygous, then approximately 50% of the offspring should display the recessive phenotype.
Explanation:
An action potential causes the vesicles in the axon terminal of a neuron to move towards the cell membrane, where they meet with it and merge with it. After merging, loads of neurotransmitters diffuse into the synaptic cleft. Here they diffuse and move to the post-synaptic dendrites receptors. This initiates a graded potential which moves down the dendrites to the axon hillock, where another action potential takes place.
