Answer:
he amount of living space for the rats and the amount of food are two different variable that will make a mistake the student changed. If you're doing an experiment, you need to control the conditions and the only change ONE variable at a time of each one . If you want to know if the food and the living space affect weight, you should do two different experiments.
i hope this helps you out
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Answer:
This zygote is tetraploid.
Explanation:
An haploid cell contains a single set of chromosomes (one chromosome 1, one chromosome 2, one chromosome 3, etc.).
A diploid cell contains two sets of chromosomes (two chromosomes 1, two chromosomes 2, etc.).
Usually, two haploid gametes fuse and generate a diploid zygote, that has a set of chromosome from one parent and another set from the other parent.
If during meiosis the generated gametes are diploid instead of haploid, the resulting zygote from that fusion will have four copies of each chromosome. An organism that has four sets of chromosomes (four chromosomes 1, four chromosomes 2, etc.) is called tetraploid.
Answer:
b. Team 2: calculates 0.935 J/g degrees celsius.
Explanation:
In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.