b. cytoplasm
c. nucleus
d. mitochondrion?
Answer: Mitochondria.
Explanation:
Mitochondria is a double membrane bound organelle found in the cytoplasm of the cell. The main function of mitochondria is to produce energy currency ATP (adenosine triphosphate) which is used by every cell of the body to perform metabolic activities.
The energy production takes place by the process known as cellular respiration in the presence of oxygen by the breakdown of glucose.
The mitochondrion is the part of the cell that supplies energy. It is often referred to as the 'powerhouse of the cell' as it turns glucose into ATP, the cell's energy-carrying molecule via cellular respiration.
The organelle that supplies the cell with energy is the mitochondrion. Among your options, ribosome is responsible for the synthesis of proteins, the cytoplasm hosts various cell processes and the nucleus contains the cell's genetic material. However, it's the mitochondrion, often described as the powerhouse of the cell, that provides the energy. It does this by breaking down glucose into ATP (adenosine triphosphate) through a process called cellular respiration. ATP is the molecule that carries energy within cells and is vital for cell functions.
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B. notochord
C. pharyngeal slits
D. dorsal fin.
2. Ancient chordates are thought to be most closely related to which of the following species?
A. spiders
B. earthworms
C. octopi
D. sea stars
The notochord is a flexible, supporting structure found only in chordates. Ancient chordates are most closely related to octopi.
The correct answer for the first question is B. notochord. The notochord is a flexible, supporting structure found only in chordates.
It provides support to the body and serves as a precursor to the vertebral column in vertebrates. Examples of chordates include fish, birds, and mammals.
The correct answer for the second question is C. octopi. Ancient chordates are thought to be most closely related to cephalopods like octopi.
Both groups share certain characteristics in their body structure and development.
Learn more about chordates here:
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