Science can help people in their economic live as consumer
Answer:
Housing development and shopping mall
Explanation:
housing development and shopping mall may cause wildlife habitats destroyed. also the land being destroyed is not unenvironmetally friendly
Answer:
The correct answer is b. All round seeds
Explanation:
If an RR plant is crossed with an rr plant than all the phenotype will produce round seed and the frequency of the Round seed plant to wrinkled seed plant would be 4:0.
R R
r Rr Rr
r Rr Rr
So all the phenotypes will be heterozygous dominant for the round seed which means that all phenotypes will have a single dominant allele for round seed which is enough to express round seeds in the phenotypes.
Answer:
<em>They deliver oxygen to the blood.</em>
Explanation:
The main function of the respiratory system is to provide oxygen to the body and to remove carbon dioxide from the body. Oxygen is transported to all ports of the body via blood vessels from the lungs. The alveolar sacs, present in the lungs, allow oxygen to be transported to the blood and carbon dioxide to be taken up.
The organs of the respiratory system include nose, pharynx, epiglottis, larynx, trachea, Bronchi, Bronchioles, alveolar sacs of the lungs.
