<span>The brain's pineal gland produces the hormone melatonin, which helps control your sleepiness and wakefulness cycles. Melatonin is a natural hormone in the body which production is </span>stimulated by darkness and decreased by light. This hormone is involved in the <span>internal body clock and regulates diverse body functions.</span>
Answer is D. Their tunnels act as conduits for rain water to seep into the ground, thereby promoting the growth of grass.
Prairie dogs are the rodents which make burrows. These prairie dogs live that burrows in large colonies in the grasslands. Prairie dogs are regarded as a “keystone” species because their habitats provide benefits to lot of other species. A number of species such as tiger salamander use their burrows as their homes. Most importantly prairie dogs aerate and fertilize the soil as their burrows act as conduits for rain water to seep into the ground, thereby promoting the growth of grass. This promote greater diversity of plants in that region.
Explanation:
viruses can not reproduce by themselves (without a host) but cells can
The rank from most likely to least likely of the one-base point mutations will be: (B) 4, 3, 2, 1
4. deletion mutation within the first exon of the gene.
3. substitution mutation at the second position of a codon in an exon.
2. substitution mutation at the third position of a codon in an exon.
1. insertion mutation deep within an intron.
Insertion mutation can affect the structure but only when present in the axon. Deletion mutation can change the whole reading frame pf the m-nucleotide sequence.
Substitutions can at maximum change one amino acid in the reading frame as one amino acid will be replaced by another. And if the substitutions is at the third place of the codon triplet, chances are that the amino might not even change as one amino acid are coded by more than pone codons.
To know more about substitutions, here
brainly.com/question/15204431
#SPJ4
The answer is tortoisehell females and black males is the types of offspring that would be anticipated from the cross of a black female and an orange male. In addition to biology, males are more often pretentious by sex-linked characters than females because males are homozygous for the X chromosome. The haploid diploid is the scheme of chromosomal of to determine the sex in utmost class of ants and bees