The correct statements are 1, 2, and 5 as they explain the adaptations that mussels developed to prevent their extinction and how this aided them in natural selection.
Crabs are omnivores. The smaller crabs can eat seaweed, worms, shrimp, algae, etc while the larger ones can eat mussels, snails, and squid. Crabs can change their feeding grounds because of environmental changes. Mussels being the prey of crabs were forced the development of new traits to ensure their survival. They started to produce thicker shells. This allowed the mussels with thicker shells to survive as they would not get eaten by the crabs, thus undergoing natural selection. The development of said trait improved the survival rate of mussels and prevented them from going extinct due to predation.
Note: The question seems to be incomplete and the options could have been
- "A change in the environment led to a new distribution of traits in a population.
- The trait of shell thickening underwent natural selection.
- The trait for shell thickening will not be selected by future mussel generations.
- Half of the mussel population developed the trait while the other half did not.
- Mussels with the shell thickening trait had a greater chance of survival."
Learn more about adaptations and natural selection here:
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Answer:
The shape of an enzyme determines which reaction it can catalyze.
Explanation:
Each enzyme is specific to one type of reaction. According to the structure of each enzyme, it has an active site capable of binding to a specific substrate, so the shape of the enzyme determines the type of reaction to be catalyzed.
Once the reaction occurs, the enzyme releases the product of the reaction and the enzyme is available for another reaction.
Regarding the other options:
- <em>The shape of an enzyme no depends on the reaction that it needs to catalyze.
</em>
- <em>Due to their specificity, enzymes can only catalyze one reaction at a time</em>
- <em>The shape of the enzyme is not altered after the reaction.</em>
All cells have a cell membrane. its basically what protects the cells from getting toxins that are sometimes entering your body. without a membrane on all cells, you would get sick a lot!!
Answer and Explanation:
The functions of the red and yellow bone are as under:
- Red bone marrow are a large portion of the red and white platelets and platelets themselves are created in the red bone marrow.
- Hemopoetic division of stem cells happens. the red color of the Hemoglobin imparts its color to the bone marrow as a result of which it appears red.
- Yellow bone marrow produces ligament and bone. The yellow color of this bone marrow is due to the presence of a fat containing acrotoid pigment in it.
I swear it's the cell membrane.. I'm not sure though
