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Bezzdna [24]
3 years ago
14

Which is the best definition for directional selection

Biology
2 answers:
kotegsom [21]3 years ago
6 0
It is a mode of natural selection where an extreme phenotype is favored by the other phenotypes  causing the allele frequency to  shift over time in the direction of that phenotype
postnew [5]3 years ago
3 0

Answer:B- a process by which one of the extreme variations of a trait is favored.

Explanation:

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Type the correct answer in the box. Spell all words correctly. Which training does Michael need to work as a veterinarian in a z
enot [183]

Answer:

The correct answer yo get a degree in veterinary medicine.

Explanation:

In U. S. a veterinarian needs to have the proper training and degree to practice at any place like zoo or clinics. Michael needs a Doctor of Veterinary Medicine degree known as  D.V.M. or V.M.D. from an accredited veterinary medicine college. It is a four years program that includes classroom studies, laboratory experience, and clinical work.

5 0
3 years ago
You are unable to collect capillary blood from the finger of a child who has cold hands that appear bluish. What term is used to
HACTEHA [7]

Cyanotic is the term used to describe the colour of the child's skin in the documentation of failure to collect a specimen.

Cyanosis is characterized by a shift in the colour of human tissues to a bluish-purple tone. This colour change occurs as a consequence of reduced levels of oxygen being attached to the haemoglobin in the RBCs of the capillary bed. The lips, mucous membranes, nail beds, and ear lobes are among the most common areas on the body to exhibit cyanosis as these areas have thinner layers of skin than other parts of the body. In addition to cyanosis, a bluish discolouration of the skin tissue can be caused due to the consumption of food products with blue or purple dyes.

Learn more about cyanosis here :

brainly.com/question/16109378

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4 0
1 year ago
What information would you need to know in order to make an accurate classification of these organisms?
Shtirlitz [24]

Answer:

Information that are required to classify an organism are given below.

1. Unicellular or multicellular : First we have to see that from how many cells the body of organisms formed.

2. Composition of cell wall: Secondly we have to see the cell wall composition.

3. Prokaryotic or eukaryotic cell: We have to see the nucleus of organisms, if it has nucleus we can say that it is a eukaryotic cell.

4. Mode of nutrition: Mode of nutrition means is the organisms is autotroph or heterotroph.

If they have similarities, so it is placed in one group. If not so it is placed in different group or kingdom.

7 0
3 years ago
Which of the following contains bacteriochlorophyll? A. Bacillus subtilus B. Staphylococcus aureus C. Streptococcus pyogenes D.
N76 [4]

Answer:

E. Chromatium, Thiospirillum, Thidictyon

Explanation:

  • There are some bacteria which are capable of conducting photosynthesis without producing oxygen in the process and bacteriochlorophyll is the main structural unit of the photosynthetic component of such bacteria.
  • Purple a green sulfur bacteria are the ones that contain bacteriochlorophyll.
  • bacteriochlorophyll's function is the same as that of chlorophyll in plants.
  • <em>Chromatium, Thiospirillum, Thidictyon </em>are the bacteria that contain bacteriochlorophyll.
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3 years ago
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wariber [46]
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