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Luda [366]
3 years ago
9

What does it mean to say an explanation is testable? Give on example of a testable question.​

Biology
1 answer:
attashe74 [19]3 years ago
3 0
A testable question is a question that can be answered and solved by creating and conducting an experiment. Testable questions are often about changing one item to see what impact it has on another.

Example:
Does changing the height of the ramp affect the speed of the skateboard going down the ramp?
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1. Why are viruses considered nonliving but bacteria are considered living? Give two reasons. (1 point)
mezya [45]

Answer:the virus simply can't replicate. Viruses fail the second question for the same reason. ... Finally, a virus isn't considered living because it doesn't need to consume energy to survive, nor is it able to regulate its own temperature.Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

Explanation:

Viruses, like bacteria, are microscopic and cause human diseases. ... Viruses also lack the properties of living things: They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli. They also don't reproduce independently but must replicate by invading living cells.

5 0
3 years ago
Please help to explain why pine trees have needles instead of leaves and cacti have spines instead of leaves.
ladessa [460]
Developed a way to protect their foliage. Instead of flat leaves, pine trees have needles<span>. These </span>needles<span> are the key to the Winter survival of the </span>pine tree<span>. </span>Needles<span> cut evaporation so</span>trees<span> can save water!
Cacti have sines instead of leaves because they help protect them from getting eaten and they don't need leaves because they store water inside themselves. 
They both have adapteations to help them servive in very harsh conditions. Cacti use their adaptations to survive in scourching heat and pine trees can servive in freezing cold.</span>
7 0
4 years ago
A researcher examined the response of dandelions to herbivory by rabbits. She finds that in a greenhouse with no rabbits, there
vazorg [7]

Answer:

b.

Explanation:

Based on the information provided within the question it can be said that from this info the researcher can conclude that Dandelion seed number is a constitutive defensive response to rabbit herbivory. This is mainly due to the fact that Dandelions that have been eaten by the rabbits have produced more seeds, meaning that the Dandelions defense mechanism produces more seeds when attacked in order to prevent the flower's extinction.

4 0
3 years ago
Which statements are true regarding pharmacodynamics and the pediatric client? select all that apply?
prisoha [69]
The statements that are true are the following:
1. The levels of microsomal enzymes are decreased.
Microsomal enzymes are functional parts of the human liver, which participate actively in the drug metabolism. It has been shown that the activity of these enzymes is lower in children, reaching its full activity in adult individuals. 
2. First pass elimination is reduced because of the immaturity of the liver.
First pass elimination is a phenomenon of drug metabolism, that occurs in the liver or the gut and involves the reduction of the drug concentration before it reaches the systemic circulation. In neonates, the liver is immature and undergoes several changes during the postnatal period.
3. Gastric emptying is slowed because of slow or irregular peristalsis.
 Peristalsis is a term referring to the movement of food to several positions of the digestive tract, through muscle contractions. Gastric emptying is strongly affected by peristalsis. Some children have irregular peristaltic movement.


7 0
4 years ago
Where in the body would you expect to find columnar epithelium
tatuchka [14]
<span>In humans, a simple columnar epithelium lines most organs of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the uterus.</span>
5 0
4 years ago
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