Answer:
See
Explanation:
Given:
Brown allele (B) is dominant over the white allele (b).
It will be assumed that the alleles are not related to the X and Y chromosomes.
See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)
For both parents hetero-zygous,
P1:
Genotype: Bb (100%)
Phenotype: brown (100%)
F1:
Genotypes : BB, Bb, bB and bb in equal proportions, i.e.
BB (25%), Bb (50%), bb (25%)
Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)
Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin. Acetylcholine, gastrin, and histamine stimulate the proton pump in parietal cells to release hydrogen ions and decrease pH.
Answer:
Herbivore that feeds on producers
Explanation:
The producers are plants at the bottom of the food web. These are eaten by herbivores, that are the primary consumers.
Herbivores themselves are consumed by carnivores, which are secondary consumers.
Sometimes, these carnivores can be consumed by top predators, like a shark, snake or eagle.
<u>Options and why they are right/wrong</u>
Carnivore that feeds on producers - carnivores do not feed on producers
Herbivore that feeds on producers - this is correct
Herbivore that feeds on primary consumers - primary consumers are animals and herbivores do not eat animals
Carnivore that feeds on primary consumers - this would be a secondary consumer
Answer:
The electron transport chain
Explanation:
During the citric cycle in the matrix of the mitochondria, the NAD+ and FAD+ the metabolic cycle are reduced to NADH and FADH₂ through accepting electrons. The energy harnessed from the metabolic cycle is used to develop a proton motive force across the mitochondrion intermembrane. This potential energy is harnesses by ATP synthase to create ATPs. As the H+ ions drain back into the matrix of the mitochondria, they are used to reduce oxygen to water. In this redox reaction, the FADH₂ and NADH donate their electrons and are recycled back to the citric cycle in their oxidized form.
Answer:
The answer is- Feeling worthless and guilty
Explanation:
The options are;
a. Hypersomnia
b. Melancholia
c. Feeling worthless and guilty
d. Suicidal ideation
Option D is the answer because Edward feels responsible for his best friend's divorce even though he had nothing to do with it. One of the symptoms of depression is the feeling of worthlessness and guilt. Edward is feeling guilty.
