IdeasCuriosas - Every Question Deserves an Answer Logo

In Biology / High School | 2025-07-05

According to the cell theory, which structure contains cells?
A. blood
B. water
C. carbon dioxide
D. chromosome

Asked by nate082216

Answer (2)

The cell theory states that all living organisms are made of cells. Among the options provided, blood is the only structure that contains cells, including red and white blood cells. Water, carbon dioxide, and chromosomes do not contain cells in the same way blood does. ;

Answered by GinnyAnswer | 2025-07-05

The cell theory states that all living organisms are made of cells, and among the options given, blood is the only structure that contains cells. Water and carbon dioxide are non-cellular substances, and chromosomes are structures within cells but not cells themselves. Therefore, the correct answer is blood.
;

Answered by Anonymous | 2025-07-07

Related Questions in Biology

[Answered] A) Constitutive Perhaps 60-80% of genes are not regulated, but are C) Degenerative D) Repressed B) Continuous

[Answered] Which statement about the scientific method is true? A. The scientific method involves developing and testing conclusions. B. The scientific method is a linear approach to accumulating scientific knowledge. C. The scientific method is used in different ways by different scientists. D. The scientific method involves developing a question to answer a hypothesis.

[Answered] What characteristic of skeletal muscle fibers allows them to contract and move bones? A) The presence of thick and thin myofilaments organized into sarcomeres. B) The fibrous epimysium surrounding the fibers. C) The rich supply of blood vessels in skeletal muscle. D) The multinucleated structure of the fibers.

[Answered] Through which conversion is energy released? A. ADP to ATP B. ATP to ADP C. NADP${}^{+}$ to NADPH D. $CO _2$ and $H _2 O$ to $C _6 H _{12} O _6$ and $O _2$

[Answered] The regulation of the lactose operon depends on the level of which of the following substances in the medium? A) DNA polymerase B) RNA polymerase C) Lactose D) Glucose E) C & D