Answer:
The skin has 4 main layers, Epedermis, Derma, Hypodermis, and the Subcutaneous layer. Each layer is composed of certain material and tissue. On the most outer layer, there is hair, nerves, and glands (of sweat). Down further are veins, and arteries. The adipose tissue makes up the hypodermis layer.
Answer:
Master genes tend to be conserved.
Explanation:
Master genes, which are the genes in the DNA that control major development processes such as the development of the skeleton, the organs etc and the production of the necessary proteins.
Since they take on such an important role, they don't really change much. Master genes that affect development tend to be highly conserved so embryonic development can show similar patterns.
I hope this answer helps.
Answer:
DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.
Explanation:
Answer;
The above statement is false.
Explanation;
The correct statement would have been;
The half life of an element of an element is the amount of time is it takes for half of radioactive isotope to decay.
-Isotopes are atoms of the same element that have the same atomic number but different mass number. Radioactive decay happens when an unstable atomic nucleus of an isotope spontaneously changes to a lower-energy state and spits out a bit of radiation.
-Half life is defined as the time it takes for one-half of the atoms of a radioactive material to disintegrate or undergo radioactive decay.
