1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lostsunrise [7]
3 years ago
12

How students are disscussing natural selection in bacteria

Biology
1 answer:
Elis [28]3 years ago
8 0
Antibiotics are, initially, molecules naturally synthesized by microorganisms to fight against bacteria competing with their environment. This created a pressure of selection on the bacterial populations, leading to the appearance of resistant strains. In fact, when an antibiotic is used, only bacteria with defense systems against this molecule survive (and reproduce).

hope this helps
You might be interested in
When cloning eukaryotic genes into bacteria for protein production, a copy of DNA that lacks introns must first be obtained. Int
Paladinen [302]
Obtaining mRNA from the cell, then using reverse transcriptase enzyme to convert it into a stable cDNA (or copy of DNA) molecule for insertion into the bacterial cell.










I hope this helps!
6 0
3 years ago
In fruit flies, the allele for vestigial wings is recessive to the allele for normal wings. In a generation of fruit flies, 18 m
Zina [86]
Mendelian genetics one of the fundamental laws is The Law of Independent Assortment. The law states that parental traits are passed independently from parent to child. The recessive trait, vestigial Wings, occurs in an approximate phenotypic ratio of 1.3. In monohybrid Cross of heterozygous (Rr) parents the expected phenotypic ratio correlates with the given 1:3 result therefore l can conclude that the parents are both heterogeneous (Rr) for vestigial wings. Normal Wings-R, Vestigial Wings (Parent 1) Rr* Rr (Parent 2) R*R- RR- Normal Wings (Child 1) R*r Rr- Normal WIngs (Child 2) r * R - Rr- Normal Wings (Child 3) r*r- rr Vestigial Wings (Child 4) 1 Vestigial Wings: 3 Normal Wings
7 0
3 years ago
Explain how the interaction of the Sun, the atmosphere, and the oceans produce winds.
Sergio [31]

Explanation:

The sun heats the air leading to warm air. the warm air rises thus makes the cooler air from the surroundings to replace it. This leads to creating wind . This same process applies for ocean currents.

The sun heats water which make warm water come to the surface of the ocean thus replacing it with cooler water leading to ocean currents.

7 0
3 years ago
Please helppp!!!!!!!!!!!!!!!!!!!!!!!!
Ronch [10]

Answer:

B (nematocysts)

Explanation:

A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.

Have an awesome day friend! :D

5 0
2 years ago
Read 2 more answers
Genes that are encoded for polymerases, gyrases, ribosomal proteins, and other proteins essential to replication, transcription,
Lena [83]

Answer:

A) chromosomes is the correct answer.

Explanation:

Chromosomes are present in nuclei of animals and plants and they are composed of protein and DNA.

functions of chromosomes

  • Chromosomes are required for the formation of daughter cells, replication and cell division process.
  • Chromosomes carry the genetic material called DNA that provides genetic information to carry out the different cellular processes and functions.

5 0
3 years ago
Other questions:
  • The strong risk factors for colon cancer include which of the following? (Select all that apply.) A. Aging B. Gender C. Heredity
    5·1 answer
  • Water is split into what elements ?
    9·1 answer
  • The roots of plants are important to photosynthesis because they...
    10·2 answers
  • Which processes lead to most genetic variation in sexually reproducing organisms? select all that apply. select all that apply.
    7·2 answers
  • What do you call a two-humped camel???? Plz I really need to know.
    11·1 answer
  • Earth. 1. A
    7·1 answer
  • Is the process of bringing nutrients into the bloodstream while<br> is getting rid of waste *
    11·2 answers
  • Cystic fibrosis is a hereditary disease The cystic fibrosis rocossive. What does this mean
    15·2 answers
  • What property separates light waves from all other waves? Is all light visible to humans? Please answer all parts of the questio
    5·1 answer
  • Many small poisonous animals are brightly colored, including the poison dart frog and some species of fish, octopi, and insects.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!