They Widley accepted theory of planet formation, they so-called palnetsmals hypotheses, the Chamberlin--Moulton planetesimal<span> hypothesis and that of Viktor Safronov, states that </span>planets<span> form out of cosmic dust grains that collide and stick to form larger and larger bodies.</span>
Answer:
One importance in breeding agriculture plants is to improve the plant's yield, resistance against diseases, and ability to survive in cold conditions.
<em>(I'm assuming the question is asking what the importance is of artifically breeding plants, not literally breeding next to some plants. that would be weird)</em>
Answer:
gametes
Explanation:
In the human reproductive process, two kinds of sex cells, or gametes (GAH-meetz), are involved. The male gamete, or sperm, and the female gamete, the egg or ovum, meet in the female's reproductive system. When sperm fertilizes (meets) an egg, this fertilized egg is called a zygote (ZYE-goat).
Answer:
The answer to this question is given below in this explanation section.
Explanation:
"advantages of interconnecting air sacs for birds"
The air sacs permit a unidirectional flow of air through the lungs.Unidirectional flow means that air moving through birds lungs is largely fresh air and has a higher oxygen content.In contrast air flow is bidirectional in mammals moving back and forth into and out of the lungs.As a result air coming into a mammals lung is mixed with old air has less oxygen. so in bird lungs,more oxygen is available to diffuse into the blood(avian respiratory system).
- The air sacs are thin membrane structures connected to the primary or secondary bronchi via ostia and they comprise most of the volume of the respiratory system.
- Air sacs are poorly vascularized by the systemic circulation and do not directly participate in significant gas exchange but act as a bellows to ventilate the lungs.In most species,there are nine air sacs which can be considered in cranial and caudal functional groups.
- The cranial group consists of the paired cervical air sacs,the unpaired clavicular air sacs and the paired cranial thoracic air sacs.
The parent cannot produce an offspring with blood type 'o' because you can have a or b passed on so any answer with that in it will work
