Answer:
A
Explanation:
I'm pretty sure it's A because fish = fish feces which = nutrients.
B. Exchanged during normal breathing
Answer:
3,5, and 10 g samples of liver
Explanation:
There are two types of variables which are used for scientific experiments.
- Dependent variable
- Independent variable
A dependent variable can be described as the variable which is being measured or tested in an experiment. An independent variable can be described as the variable which is changed in the experiment to check if it has any effects on the dependent variable. An independent variable is the one which can be controlled.
The epiglottis - a flap of elastic tissue that projects upwards behind the tongue and hyoid bone. It closes off the larynx during deglutition (swallowing) to prevent aspiration and direct food down the oesophagus rather than the trachea.
Two alleles expressing exactly the same information for a trait are described as homozygous.
An individual is homozygous for an allele if the two alleles are identical. Two normal alleles or two alleles with the same variation can both be present in a homozygous genotype. When an organism is homozygous, it signifies that it possesses two copies of the same gene allele.
If an organism possesses two copies of the same dominant allele, it is said to be homozygous dominant, and if it possesses two copies of the same recessive gene, it is said to be homozygous recessive. For instance, there are two variants of the gene for seed shape in pea plants: one form (or allele) for round seed shape (R), and the other for wrinkled seed shape (r).
Learn more about allele here;
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