The correct answer is option 4, that is, muscle cells require more energy, so they have more mitochondria in comparison to the skin cells.
Mitochondria are the powerhouse of the cells. The synthesis of ATP takes place in them, that is, the energy currencies of the cell. The cells of the muscles need to work hard and thus require ample energy, for this, they need more concentration of mitochondria to generate a high energy yielding ATPs.
The Internal skeleton of the porcupine gives shape and structure to the porcupine.
The stem of the rose plant provides support to the plant and serves to transport nutrient and water in the plant.
<h3>What a skeleton?</h3>
A skeleton is a rigid structure found in living organisms which provide structure and shape to the living organism.
Skeletons are found in animals.
Skeletons present in animals are of two types:
- Internal skeletons also known as endoskeletons
- external skeletons also known as endoskeletons
The Internal skeleton of the porcupine gives shape and structure to the porcupine. It also serves as a point of attachment to muscles in order to enable movement.
Stems are present in plants.
Stems serve various purposes in plants such as:
- transport of nutrients and water
- storage of food and water
- provides support and structure to the plant.
Thus, the stem of the rose plant provides support to the plant and serves to transport nutrient and water in the plant.
In conclusion, the internal skeleton of animals and the stem of plants both provide shape and structure to the respective organisms.
Leran more about internal skeleton and plant stem at: brainly.com/question/840794
brainly.com/question/11171631
#SPJ1
Answer: It’s called a point mutation.
Explanation:
Answer:
The top of the mountain
Explanation:
The air is the thinnest at high altitudes, like the top of a mountain
Answer: reproductive, endocrine, and nervous systems
- Hormones provide feedback to the brain to affect neural processing. Reproductive hormones affect the development of the nervous system. The hypothalamus controls the pituitary gland and other endocrine glands.