Answer:
Neurospora.
Explanation:
Beadle and Tatum experiment shows one gene one enzyme hypothesis. According to this, a single enzyme is encoded by each gene. This idea is not accepted in today's world.
Beadle and Tatum performed experiment on the neurospora. They chosed neurospora in their experiment because neurospora shows the fast life cycle with alternation of generation. The genetic experiments can be easily performed on neurospora.
Thus, the correct answer is option (c).
<span>The characteristics that scientists used to classify living organisms into six kingdoms include the following:
1. Cell type: living organisms are classified into prokaryotes and eukaryotes based on the presence of nucleus and distinct arrangement of the organelles in their cells.
2. Mobility: living organisms are categorized into kingdoms based on their ability or inability to move about.
3. Cell structure: the cells structure was used to divide living organisms into plants and animals. Those living organisms that have cell wall are classified as plants while those who do not have cell wall are classified as animals.
4. Number of cells: living organisms that are made up of only one cell are classified as unicellular while those with many cells are termed multi cellular.
5. Reproduction method: living organisms are classified based on whether they reproduce sexually or asexually.
6. Manner of obtaining energy: living organisms that can prouduce their own food are called autotrophs while those that can not produce their own foood are termed heterotrophs. Plants are essentially categorised as autotrophs while animals are described as heterotrophs.</span>
Answer:the component materials and their arrangement
Explanation:
Bone are important for movement in animals.bones is made up of 15% water,30% collagen fibres and 55% mineral salts..bone cells are widely separated. The Collagen makes bones soft and flexible. Mineral salts makes it fragile and strong.
The osteogenic cells builds the bones and the osteoclasts breaks down older bone tissue, in order to keep the body strong.
Spongy bones contains tiny spicules that helps in strength.
It also reduces the weight of the bones .
The cells of Compact bones are arranged in the direction of stress to keep the bone strong.
They are constantly changing throughout life
Blood-vascular system and Lymphatic system
