Answer:the independent variable is the variable that won’t be artificially changed
Explanation:
for example, if you experiment about how tall a plant will grow by using different solutions, the dependent variable the the solution, the independent variable is the plant height
Answer: because of minor genetics
Explanation:
Answer:
The correct answer is (b): Individuals with certain advantageous traits are selected, in the sense that they produce the most offspring.
Explanation:
Natural selection can cause a change in allele frequencies over time, making the best alleles, those better adapted, more common in the population over generations.
This is called Fitness, and it refers to how many offspring organisms of a particular genotype or phenotype leave in the next generation, relative to others in the group.
Natural selection can act on different alleles of a single gene, or on polygenic traits.
Natural selection can shift phenotype distributions in three ways:
-Stabilizing selection: Intermediate phenotypes are more fit than
extreme ones, e.g. camouflage.
-Directional selection: One extreme phenotype is more fit than all the
others, e.g. are more hidden in shadow and survive better than other
types.
-Disruptive selection: Both extreme phenotypes are more fit than those
in the middle, e.g. mimesis on octopuses.
I hope it helps!
Answer:
Heterotrophs, or consumers, are organisms that must obtain energy by consuming other organisms (autotrophs or other heterotrophs) as food.
Answer:
Yes, because each daughter cell contains replicated genetic material, which are exact copy of one another.
Explanation:
Mitosis is a kind of cell division that results in two daughter cells that are genetically identical to the parent cell. Prior to the mitotic process, the cell undergoes DNA replication in the Interphase stage. DNA replication produces a replicated copy of the genetic material (DNA) to form two copies of each chromosome in the nucleus.
This replication gives rise to two copies of the DNA borne on replicated chromosomes called SISTER CHROMATIDS. During Anaphase stage of Mitosis, the sister chromatids separate into opposite poles and eventually into two cells after CYTOKINESIS (cytoplasmic division).
Each daughter cell now contains a nuclei that contains exact copies of genetic material without any form of recombination. Hence, each daughter cell is said to be genetically identical to the parent cell.