Answer:
Is composed of trabeculae that are oriented along lines of stress. (Ans. D)
Explanation:
Spongy bones are also known as trabecular and cancellous bones. It is covered by compact bones and present in the long bones. They are known as spongy because they are highly vascular and porous tissues.
Osteoblast thin area creating the turbeculae space between the tissues. Spongy bones are also known for home of hematopoietic stem cells and bone marrow, which are helping to differentiate white blood cells, red blood cells, and platelets.
Some difference between spongy bone and compact bone are:
1) Spongy bones are light weight and compact bones are heavy.
2) Spongy bones are composed of trabeculae and compact bones are composed of osteons.
3) Spongy bones are known as cancellous and compact bones are known as cortical bones.
The correct answer is B. A bony skeleton
Explanation:
In biology, Chondrichthyes are mainly marine jawed fishes that have cartilage skeletons rather than bone skeletons and also they have paired fins, this includes animals such as rays and sharks. In terms of origin, it is believed this type of fishes are mainly linked to placoderms that were a type of primitive fish that lived during the Devonian period that had a body skeleton as they were covered by hard structures called plates made of bone. Because of this, it is believed this structures evolved into less rigid ones made of cartilage although both the primitive fish and modern Chondrictyles share features such as the structure of jaws. Therefore, Chondrictyles descended from fishes that had a bony skeleton.
Answer: D. About half of the offspring will have purple flowers, and about half of the offspring will
have white flowers,
Explanation: Purple flower is dominant over white flower, therefore a cross between Pw and ww will produce four offsprings, fifty percent of which will have purple flowers and the other fifty percent will have white flowers. The genotypes of the offsprings are Pw and ww. Pw will manifest outwardly as purple flowers while ww will manifest outwardly as white flowers.
See attached completed punnett square
<span>The Menstral Cycle is the </span><span>female hormone that is responsible for stimulating the egg development</span>.
Hope that helps. -UF aka Nadia
Answer:
The CO2 acceptor concentration would increase when the CO2 is cut off, but decrease when the light is cut off.
Explanation:
Calvin's light-independent reactions cycle breaks down on three basic stages: fixation, reduction, and regeneration.
All organisms need energy to perform life functions, and energy that is released is reused in other ways. Some plants have evolved mechanisms to increase the CO2 concentration in their leaves under hot and dry conditions.
