B that is the answer for this question
Answer: bone marrow
Explanation: Bone marrow is the soft, spongy tissue that is located in the medullary cavities (centers) of certain large bones. Healthy bone marrow is an essential part of the body, as it contains stem cells that produce blood cells and the cells that make up the immune system.
Answer:
C: cat 4 or 5
Explanation:
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Answer:
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.
Explanation:
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Answer:
The correct answer is - Jovian planets are mostly gas and liquid, terrestrial planets are solid and rocky.
Explanation:
Jovian planets also are known as gas planets due to the fact that they are made of gases. These planets are thick or dense with a large size in comparison to the terrestrial planets. These planets have more moon and termed as outer planets.
Terrestrial planets are made of the rocky surface that is denser than gas planets. These planets are known as inner planets. These planets are comparatively smaller and have less or no moons.