Answer:
Darwin’s findings based:
a. Organisms descended from a common ancestor
Explanation:
Darwin thought of evolution as "descent with modification," a process in which species change and give rise to new species over many generations. He proposed that the evolutionary history of life forms a branching tree with many levels, in which all species can be traced back to an ancient common ancestor.
Answer:
B
Explanation:
Surface tension allows a water strider to "walk on water"
Water striders are able to walk on top of water due to a combination of several factors. Water striders use the high surface tension of water and long, hydrophobic legs to help them stay above water. ( :
Genes code for traits.
<u>Example:</u>
"Hair color" is a trait. There are many different varieties of hair colors (blond, brown, black, etc.). Therefore, there are multiple genes responsible for the trait of hair color (a blond hair gene, a brown hair gene, a black hair gene, etc.).
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I found a list of criticisms of the Minnesota study on the genetic influence of intelligence.
The list stated:
1) Bouchard relied on media coverage to recruit participants
2) Ethical concerns about the way Bouchard reunited the twins.
3) No adequate control to establish the frequency of contact between the twins prior to the study
<span>4) Assumption that the twins who are raised together experience the same environment = "equal environment assumption" is not accurate. </span>
Answer:
The dialysis tubing is semi permeable in nature which means that it allows some molecules to pass through it while hinders the movement of other molecules.
<u>Process:</u>
A dialysis tube filled with water and sugar when placed in pure water will act as a setup that can depict the process of Osmosis. Sugar molecules will not be able to pass the membrane while pure water molecules will move from the area of higher concentration to the area of lower concentration (inside the dialysis tube). This is because the pure water is less concentrated while the water in dialysis tube contains more concentrated solution. This will also increase the liquid level in the dialysis tube.
<u>For example:</u> If we have a dialysis bag that is not permeable to sugar but is permeable to water and it is was placed in a
beaker full of pure water.
Suppose the bag’s initial weight was 15g but after 15 minutes the bag's weight can change upto 17 grams, why it happened is due to process of osmosis of movement of pure water into the dialysis bag.
Hope it helps!