Answer: Option A.
Different beaks were available
Explanation:
Variation is the difference between traits, cells, or characteristics between organisms of any species which is caused by change in genetic information or effect of environmental factors on the expression of genes.
From the question, different beaks were available because there is variation or differences in shapes, sizes and expression.
Fro the answer to the question above,
<span>Based on fossil evidence, eukaryotes evolved about <u>2.1 billion</u> years ago</span>.
<span>Approximately the first single-celled Eukaryotes appeared 2.1billion years</span>.
But the multicellular eukaryotes first appeared at 1.5 billion years ago.
I hope this helps
The sensory receptors refer to the portions of the nervous system, which sense variations in the external or internal surroundings. The sensory input can be in various forms, comprising taste, pressure, light, sound, pH of blood, or levels of hormones, which are transformed into a signal and are transmitted to the brain or spinal cord.
In the sensory centers of the brain, the barrage of information is integrated and a response is produced. The response, that is, a motor output refers to a signal conducted towards organs via motor neurons, which then transforms the signal into some kind of action, like changes in heart rate, movement, discharge of hormones, and others.
Answer:
Resistance bacteria survive in greater numbers and pass the trait to their offspring
Explanation:
Antibiotics are chemicals which are used in the treatment of bacterial infections. The bacteria sometimes have some form of immunity or resistance to a particular antibiotic due to a host of underlying factors.
Once resistance appears in a bacterial population, it spreads rapidly. The trait of immunity or resistance to such antibiotic is then passed as a trait from one generation to another.
Answer:
Its chemical formula is C6 H12 O6,
Explanation:
I just counted the atoms for each element .
