Dorsal Body Cavity: Cranial cavity, enclosed by the skull and contains the brain. Spinal canal, enclosed by the spine and contains the spinal cord.
Ventral Body Cavity: Thoracic cavity, enclosed by the rib-cage and contains the lungs and heart.
Abdominal cavity/Pelvic cavity, contains the digestive organs, spleen kidneys, bladder, and reproductive organs.
The answer is D. We can't directly use the nitrogen from the air so we need the bacteria to change it into something that we can use.
Genetic drift is defined as a shift in the allelic frequency of a population. This can be caused by natural selection which is the differential survival and reproduction of individuals across a population due to differences in phenotype. Natural selection favors particular traits in a population hence these individuals are able to reproduce while the individuals with disadvantageous traits will pass their genes to succeeding generations. This way the allelic frequency of succeeding generation will be diferent from that of the parent population.
<span>in solving this question of how many grams of protein are in the bag of dog food, you would find out how what twenty five percent of five thousand is. To simplify it I would first find out how much 25% of 1000 is, which is 250. I would then multiply that by 5. Therefor 25% of 5000 is 1250.</span>
Answer:
Chemo-synthesis
Explanation:
Chemo-synthesis occurs in bacteria and other organisms and involves the use of energy released by inorganic chemical reactions to produce food in the absence of sunlight.