Answer:
vertebrate, animals with a backbone, and invertebrate, animals without a backbone
Explanation:
A. worm - no because a worm has no back bone
B- Chimpanzee- Yes because they have a backbone
C. Bacterium- no because it is a bacteria
D. Grass- no because no backbone
so ur answer is b
Tropopause is the boundary between the troposphere and stratosphere.
Explanation:
- Tropopause marks the transition region between troposphere and stratosphere.
- As we move up from the Earths surface , the temperature gets colder but when we reach the tropopause the temperature becomes constant and the temperature does not fall further.
- It is at a height of about 9Km at the polar region while at a height of 17 Km at the equitorial region.
The body constantly makes new cells for the purposes of growth or the replacement of old, damaged, or recently dead cells.
Answer:
C) A changed to G in the first position of the codon.
Explanation:
In the translation of DNA, triplets or codons of mRNA (a group of three nucleotides) are read according to a genetic code, to build proteins.
Proteins are composed of amino acids. In the translation process, each codon codes for an particular amino acid according to the genetic code as illustrated in the DNA codon table (attached here).
In this table we can see that if the first position of any of the codons coding for Threonine ( ACT, ACC, ACA, ACG) is changed for G, Adenine is going to be encoded instead of threonine.
Speciation, when populations evolve to become distinct species
