Explanation

Root hairs are tubular outgrowths of root cells that increase the surface area for absorption of water, salts, and minerals from the soil.

Explanation

• Myocardial Infarction (MI) is the scientific term for a heart attack.
• It occurs when the blood flow to the heart is blocked, causing damage to the heart muscle.

Explanation

Torricelli's theorem is specifically used to find the velocity of efflux.

It states that the velocity of fluid flowing out of an opening (such as a small hole in a container) can be found using the equation:

v=  under root 2gh

where:

 𝑣 is the velocity of efflux,

𝑔  is the acceleration due to gravity (approximately 9.81 m/s²),

ℎ  is the height of the fluid above the opening.

This theorem is particularly useful in situations involving the flow of liquids through openings or nozzles.

Explanation

• Limiting factors are the resources or conditions that restrict the growth, survival, or reproduction of organisms in an ecosystem.
• Examples: light, water, temperature, predation, and competition for resources.

Explanation

• Carbon Dioxide (CO2) is the gas used to produce energy in the form of glucose during photosynthesis.
• CO2 is the source of carbon atoms, which are used to synthesize glucose and other organic compounds during photosynthesis.

Explanation

• The olfactory bulb is the part of the brain that receives signals from odor receptors in the nose.
• It processing information about smells and odors.

Explanation

• The optic nerve is the nerve that carries visual information from the retina to the brain.
• Where it is interpreted and understood.
• It is responsible for transmitting electrical signals from the photoreceptors in the retina to the brain.
• It allowing us to see and interpret visual information.

Explanation

• The lens is responsible for refracting (bending) light to focus it onto the retina.
• It changes shape to adjust the focal length, allowing the eye to focus on objects at varying distances.
• This enables all light rays entering the eye to meet at a single point on the retina, creating a clear image.

Explanation

• Chromosomes are thread-like structures in the nucleus that carry genetic information in the form of DNA.
• They contain the instructions needed to build and maintain the cell, and control its functions.

Explanation

The spinal canal is not a derivative of the ectoderm.

It is formed from the mesoderm during embryonic development.

The ectoderm gives rise to structures such as:

•  the skin
• nervous system (including the brain and spinal cord)
• tooth enamel