"descent with modification" <span />
Answer:
The geologic time scale was developed after scientists observed changes in the fossils going from oldest to youngest sedimentary rocks. ... Later, scientists used absolute dating to determine the actual number of years ago that events happened. The geologic time scale is divided into eons, eras, periods, and epochs.
Explanation:
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Answer: C) variable base sequences and are variable in the population.
Explanation:
Single nucleotide polymorphisms (SNPs) result from mutations point and correspond to the position where there is an alternation of nucleotides A, C, G, T at a minimum allele frequency of 1% in a given population. The SNPs may be present in both coding and non-coding regions of the genome. In coding regions, when resulting in an amino acid substitution, they are called synonyms and can be conservative or non-conservative depending on the characteristics of the amino acids involved in the exchange. In such cases, modifications may occur in structural and functional proteins.
The answer is an exocrine gland.
Exocrine glands are a group of cells that secrete fluid through the duct and not directly into the bloodstream like endocrine glands. These glands can be found in the skin (sweat glands) and mouth (salivatory glands), as well as in digestive or respiratory tracts. Sometimes, they can even release substances out of the body, such as lacrimal or sweat glands. They are responsible for different life processes, like temperature regulation (sweat glands)
γ-Aminobutyric acid (GABA)
Signal transmission across synapses between neurons is mediated by neurotransmitter release from presynaptic axon terminals and receptor activation at postsynaptic neurons. GABA, a non-protein amino acid produced by the decarboxylation of glutamic acid, is a major neurotransmitter at inhibitory synapses in the vertebrate and invertebrates’ nervous systems. On the one hand, glutamic acid is a major excitatory neurotransmitter.
Most neurones (neurons) in the human central nervous system (CNS) send signals quickly and precisely via two primary types of neuronal activity: activation by glutamic acid and suppression by -aminobutyric acid (GABA). The activity of glutamic acid decarboxylase produces GABA from glutamic acid (GAD).
To know more about GABA refer to brainly.com/question/11000252
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