When an individual muscle fiber receives a threshold stimulus, it contracts as much as possible. ... a threshold stimulus is the minimum amount of energy needed to make a muscle fiber contract.
The correct answer is B. 1 red; 2 pink; 1 white
Explanation:
In genetics, the combination of alleles (genotype) determines the phenotype or physical features; for example, in this case, the color of the flowers in the snapdragon plants can be determined by the combination of dominant alleles (R) and recessive (r) alleles. Additionally, in the case presented, a dominant allele combined with a recessive allele (Rr) leads to pink snapdragon plants, while two dominant alleles (RR) lead to red snapdragon plants, and two recessive alleles (rr) lead to white snapdragon plants.
According to this, the generation F2 shown in the chart produced 1 red plant because there is only one plant with RR genotype; 2 pink plants because there are two plants with Rr genotype; and finally one white plant because the last plant has an rr genotype.
Since bees and butterflies both pollen are flowers, the growth (population) of flowering plants would become less common without the pollen being spread.
Answer:
The correct options are the need to take in oxygen for cellular respiration and the ability to transmit genetic information to an offspring.
Explanation:
Both prokaryotes and eukaryotes use oxygen to carry out aerobic respiration.The major byproduct of aerobic respiration in case of both prokaryotes and eukaryotes is Carbon dioxide(CO2).
Both prokaryotes and eukaryotes have the ability to transmit information to their off springs.Most Eukaryotes carry out the same by sexual reproduction and prokaryotes exhibit the same by binary fission.