Answer:
its a certain bacteria that run in the blood/cell. its consitarably in 1 out of 1000 people.
Explanation:
sickness / can pass on genes or generations.
Answer:
A) Propose two ways in which antibiotic resistance may develop in a bacterium?
Antibiotic resistance may develop in a bacterium through A GENETIC MUTATION and BY REQUIRING RESISTANCE FROM ANOTHER BACTERIUM
B.) Describe how bacterial cells acquire the ability to produce toxins?
The virulent strains of bacteria as in Corynebacterium diphtheria, and Streptococcus pyogenes all manufacture toxins with weighty physiological impacts, unlike the nonvirulent strains which do not manufacture toxins. The toxins are generated by a bacteriophage gene that has been received by transduction.
Answer:
Explanation:
Bedrock is the hard, solid rock beneath surface materials such as soil and gravel. ... Bedrock also underlies sand and other sediments on the ocean floor. Bedrock is consolidated rock, meaning it is solid and tightly bound. Overlying material is often unconsolidated rock, which is made up of loose particles.
Regolith is a blanket of unconsolidated, loose, heterogeneous superficial deposits covering solid rock.
The answers are Stabilizing selection, directional selection and disruptive selection respectively.
<h3><u>Explanation</u>:</h3>
In case of a population of a species, there exists both the homozygous alleles as well as the hybrid of the two characters. This leads to co existence of both hybrids and homozygotes together in a population.
Now because of the natural selection, there remains some characteristics in either homozygotes or in hybrids which gets special advantages over other. So nature selects the preferred race and the number of those individuals in the population increase.
If number of one of the homozygotes increase, then it's the directional selection.
If the number of the hybrids increase, then its Stabilizing selection.
And if both the homozygotes are selected, then it's divergent selection.