Answer:
Root hair cells are alive and therefore need energy, which is why root hair cells contain many mitochondria in them. Root hair cells don't contain chloroplasts. Chloroplasts are used by the plant to make food using light energy. Since the roots aren't exposed to any form of light, they have no need for chloroplasts.
Answer:
i could not figure it out though i tried my best
Explanation:
Answer/Explanation:
A mutation alters the sequence of DNA. Therefore, the mRNA that is transcribed from the DNA has a different sequence.
This mRNA goes on to be read by the protein synthesis machinery in the cell. The protein synthesis machinery translates the sequence of the mRNA into an amino acid sequence, which makes up the protein.
If the sequence of the mRNA is different, due to a mutation in the DNA, then the cell will translate a different sequence into an amino acid. This alters the composition of the protein.
Mutations can be small, and affect only one amino acid, or they could be huge, and impact the entire protein.
Mutations have very different consequences in gametes vs non-gamete cells.
If a mutation occurs in a gamete, that means the mutation will be passed on to the next generation, as it is contained in the DNA in the egg or sperm that becomes fertilised to make a gamete.
However, mutations that occur in other cells are not passed on to the next generation. That does not mean they do not have effects. E.g. mutations in the skin caused by exposure to UV rays from the sun can contribute to cancer, but would not be passed on to the individual's children
The answer is <span>A) stimuli receiver, sensory neuron, central nervous system, motor neuron, muscle or gland.
Stimuli receiver receives an information. </span><span>The information is sent through a sensory neuron to the spinal cord, as a part of the central nervous system. </span><span>The spinal cord receives information from the body and relays it to the brain. It, then, receives information from the brain and relays it out through a motor neuron to the effectors (muscles or glands).</span>
It depends on the individual reaction to lactose. first, some individuals are considered lactose intolerant meaning they lack enzymes that break down lactose into glucose and galactose. hence, if they digest dairy products they can have severe symptoms that will affect their health. however individual who aren’t lactose intolerant benefit from digesting lactose containing products because it improves the individuals health by providing the body with sufficient amount of energy when lactose is broken down to glucose and galactose. Also, consuming Foods in the Dairy Group provide nutrients that are vital for health and maintenance of the body. over all, it all comes down to how an individual will react to such decisions when eliminating lactose. If this decision outweighs the disadvantages then I agree with it however if it doesn’t I completely disagree
