Answer:
Explanation:
RNA molecules are produced in the nucleus of human cells from DNA by a process called transcription, but they are found in the cytoplasm too. DNA is present only in the nucleus of the cell.
Which is a possible path of the movements of nitrogen in the nitrogen cycle?
(A) soil - airplants air animals - soil
B) soil animals plants
soil
animals soul plants - air
(D) air - soil plants animals soil - air
Answer:
B) soil animals plants
soil
Explanation:
Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.
explain the process (reflex action) that happens when you pull your arm away from an open flame. use steps to explain your answer. identify the receptor in the skin, the stimulus, the neurons,the effector(muscle) and the body's response to the stimulus.
Answer:
A reflex action is defined as an involuntary action of body in response to a stimulus, which protects the body from any harmful conditions including touching open flame.
A reflex action follows a sequence of action that helps in involuntary action, tha include the stimulus, receptor in the skin, the neurons (sensory, relay and motor neurons), the effector(muscle) and resposne of body to stimulus.
In the reflex action when a person pull his/her arm away from an open flame, the stimulus will be the hot flame that send a signal to the nervous system.
The sensory receptor found in the dermis or epidermis of skin called cutaneous receptors, senses the temperature change.
Then the sensory neuron comes in action which sends electrical impulses to a relay neuron (located in spinal cord) and relay neuron sends impulse to motor neuron.
Motor neuron sends that electrical impulses to a muscle which act as an effector which allows muscle to contracts to move hand away.
So, at the end the body resposnes to move hand aways from the open flame.
How dose natural selection lead to evolution
Answer:
Naturally selected organisms will survive and reproduce better adapted to the environment. This indicates that this model organism's beneficial allles are passed to offspring. The selection cycle contributes to adaptation for several years.
Explanation:
Hope this helps.
75 POINTS!!! One reason male peacocks spread their tail feathers is to attract a mate. How does choosing a male with a bright, full tail increase a peahen’s chance of producing healthy peachicks?
Answer:
They have greater health conditions
Explanation:
if they are bright, they are healthy
Answer:
Typically, if a peacock has a bright tail with many feathers and eyespots, a female will choose him. These tail features indicate that the peacock may be healthier than other males and, therefore, produce healthier peachicks.
Explanation:
This is the sample response.
The process through which humans breed other animals and plants for particular traits:
A) artificial selection
B) genetic engineering
C) genes
D) selective breeding
E) traits
Answer:
A) artificial selection
Plant species A cannot fight most fungal infections, while plant species B makes a protein that kills many fungi.
What is one possible way for humans to engineer species A plants that can produce the fungus-killing protein?
Answer:They can insert the gene for the protein from species B into a chromosome in species A.
Explanation:
The one possible way for human to engineer species should be that it should insert the gene for the protein.
What is fungal infections?It is known as the mycosis that represent the disease on the skin that should be caused by the fungus. There are various kind of species of fungi. It should be lived on dirt, on plants, or the surface on the household and even on the skin. It would leads into the rashes or bumps in the skin problem
Therefore, The one possible way for human to engineer species should be that it should insert the gene for the protein.
Learn more about fungal here: https://brainly.com/question/24859105
Which of these is found within all cells?
Organ systems
Organs
Tissues
Molecules
Answer:
tissues
Explanation:
cells make tissues and tissues make organs
How is food moved through the gut?
a. By peristalsis c. By waves of liquid
b. By gravity
d. Movement
Explanation:
a. By peristalsis
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based on the scientists results, which of the following is true?
