Answer:
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Explanation:
The reason for the change in the hands of the chimpanzee include:
- Crossbreeding between gorillas and chimpanzees( Represents a reason for the change)
- Mutations in chimpanzee DNA ( Represents a reason for the change)
- Differences in the ways chimpanzees use their hands ( Doesn't represents a reason for the change)
- Sexual reproduction ( Doesn't represents a reason for the change)
- Differences in enhancer sequences( Represents a reason for the change).
<h3>What is mutation?</h3>
Mutation is defined as the alteration in the genetic makeup of a living organism which may occur due to the following:
- When there is spontaneous break down of deoxyribonucleic acid (DNA).
- Change in a single nucleotide of the DNA.
- when there is additions or deletions of nucleotide in a DNA strand.
A change can be noticed in an animal such as Chimpanzee when the following occurs:
Mutations in chimpanzee DNA: This can alter both that anatomy and the physiological features of the organism involved.
Crossbreeding between gorillas and chimpanzees: When there is cross breeding between a chimpanzee and a gorilla, it will lead to a genetic diversity which can be observed as a change in the hands of the chimpanzee.
Learn more about mutation here:
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Answer:
Most cells within planarians tend to be very close to their gastrovascular cavity, in addition to their external environments. Also, planarians have the ability for oxygen and carbon dioxide to diffuse through the cells on their body walls: this makes it unnecessary for these varieties of flatworms to need a dedicated bodily system.
I think the deficiency of dedicated respiratory and circulatory systems in Planarians does not cause a problem because none of their cells are far removed from the gastrovascular cavity or from the external environment. Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. Flatworms have three tissue layers, that is the ectoderm, mesoderm, and endoderm.
hope this helps!!!!!....
Explanation:
Answer:
i can only define the terms for you.
Explanation:
chromosome - a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
chromatid - each of the two threadlike strands into which a chromosome divides longitudinally during cell division, each containing a double helix of DNA.
gene - a distinct sequence of nucleotides that forms a part of a chromosome, the order of which determines the order of monomers in a polypeptide or nucleic acid molecule which a cell or virus that may synthesize
The fifth week of pregnancy.
