Answer:
D. trait formation due to behaviors
Explanation:
It is obvious to see that the three animals, cat, whale, and bat, have the same basic structure of their forelimbs, but also that they have developed differently and have taken a new shape. The reason for this is a trait formation due to behavior. The cats ancestors were terrestrial, and the cats have remained terrestrial, walking on their four legs, and having the same shape and function as their ancestors. The whales had similar forelimbs, but their ancestors started to move more and more in water. As they did, they needed more muscle power, but also greater width of the forelimb so that they can move more easily and more efficiently in the water. This behavior has gradually resulted in a flat, strong, peddle like forelimb. The bat too had similar forelimbs to that of the cat, but its ancestors started to try to fly. The process was gradual, and it started with jumping, then longer jumps, development of skin between the fingers, elongation of the fingers, thus provide more area for development of wider skin area. This has resulted in developing a light, wide, skin dominated forelimb with elongated fingers, providing flight for the bat.
Answer:
Astronomers use NASA's Spitzer Infrared Telescope and Chandra X-ray Observatory to see young stars, which emit a lot more high-energy radiation than their older versions.
Explanation:
The information given about enzymes suggests that the enzymes have the capability to change their size at higher temperatures which affect their activity.
<h3>What are Enzymes?</h3>
Enzymes may be defined as biocatalysts that perform the important function of increasing the rate of a chemical reaction without being consumed in the process. It may be thought that all cellular reactions and processes are mediated by enzymes.
Temperature is a physical property that can significantly affect the activity of enzymes. It results in the denaturation of enzymes, irreversibly altering their structure. Enzymes perform their most suitable activity at the temperature of 37°C.
Therefore, the information given about enzymes suggests that the enzymes have the capability to change their size at higher temperatures which affect their activity.
To learn more about Enzymes and temperature, refer to the link:
brainly.com/question/6232699
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Answer:
3. D. The red blood cell will shrink from losing water molecules
59. C. Glucose + Oxygen —> Carbon dioxide + Water
Explanation:
The red blood cell has a lower salt concentration than the liquid which means that it has a higher water concentration than the liquid.
By the process of osmosis, water will flow from the red blood cell to the liquid which would lead to the red blood cell shrinking in size.
Cellular respiration is used to create energy for cells. It works by burning glucose in the presence of oxygen. The result is an outburst of energy and CO2 as well as water.
Answer;
C. Poor farming techniques that killed the soil were combined with drought.
Explanation;
-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.
-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
