Answer:
A. amount of food available
Explanation:
An experiment consists of two types of variables, independent and dependent. Value of independent variable is decided by the person doing the experiment and is independent of experimental conditions. Value of dependent variable is dependent on the independent variable. It can not be altered by the person doing experiment.
Here, it is given that mice receive variable amount of food each day and their lifespan is recorded. Since the amount of food is decided already it is the independent variable. The lifespan is expected to depend on the amount of food hence it is the dependent variable.
Answer:
Chromosomes condense before mitosis to allow them the ability to move smoothly, without becoming entangled and breaking. (So, they are conveniently packaged for cell division, in which the chromosomes must move to both poles of the cell.)
Explanation:Otherwise it would be a mess as they get tightly packed
it is the example of scavenger
The ER synthesizes most substances of the cell, and then the Golgi body ins the one to classify, distribute, and modify them.
The proteins forming the cytoskeleton are the ones that hold everything in place.
The main proteins doing this are the microtubules, microfilaments, and Intermediate filaments.
Also, mention the carrier proteins, that move substances inside the cell.
Answer:
He discovered that certain traits were linked to the X chromosome. He discovered that certain traits were linked to the Y chromosome. He created the first white-eyed female Drosophila. He created the first white-eyed male Drosophila.
Explanation: brainliest plz
