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Agata [3.3K]
2 years ago
15

Which of the following gives rise to the skin cells?

Biology
1 answer:
zubka84 [21]2 years ago
8 0

Answer:

Ectoderm

Explanation:

Of the three primary germ layers in the very early embryo, the ectoderm is the one that gives place to the epidermis (epidermic skin cells).

The mesoderm will develop into muscle and bone, while endoderm turns into the lungs, stomach and other organs.

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After surgical implantation of radon seeds for oral cancer, what side effects of the radiation does the nurse observe in the cli
Step2247 [10]

The answer is Vomiting or Nausea. After precise implantation of radon seeds for oral cancer, the nurse observes the patient for the side effects of radiation, the client may experience mucosa of the mouth and vomiting center of the brain stem, which causes the patient to experience vomiting and nauseous at times. Hematuria and Hypertension are two unaffiliated side effects of radiation therapy because they are not related to the oral cavity, while Abdominal Cramping is not expected to be one of the side effects, since the distance between the implanted radon seeds are far from the intestines. 

5 0
3 years ago
The relative location of four genes on a chromosome can be mapped from the following data on crossover frequencies Genes B and D
kykrilka [37]

Answer:

3. CABD

Explanation:

The gene mapping refers to providing position to the genes on the chromosomes.  The first gene map was constructed by the Alfred Sturtevant on the basis of recombinant produces or recombination frequency which was calculated.

The gene mapping refers to providing position to the genes on the chromosomes.

In the given question to construct gene map:

1. Look for the highest recombination frequency that is 50% between the C and D.

2. Now look for second-highest value and place the gene accordingly.

3.Similarly, place the genes in the decreasing order of recombination frequency and this will result that the sequence of the genes is- CABD.

Thus, Option-3 is correct.

5 0
3 years ago
Identify a predator from an Ethiopian Highlands ecosystem.
olga nikolaevna [1]

The Predator from an Ethiopian Highlands ecosystem is the Wolf. The Wolf is

regarded as a Carnivore and it gets its food from preys through Predation.

<h3>What is a Carnivore?</h3>

Carnivores refer to animals which feed on flesh . Carnivores are mainly

secondary or tertiary consumers in the ecosystem.

They prey on herbivores such as

  • Rodents
  • Deers etc.

The prey animal can be classified as Herbivores in terms of feeding

relationships. Herbivores feed on primary producers known as plants.  

REad more about Predation here brainly.com/question/13148843

8 0
2 years ago
What sorts of organs and tissues do bacteria have ?
12345 [234]

Answer:

: todas las bacterias se pueden clasificar en una de las tres formas básicas: esferas (cocos), bastones (bacilos) y espirales o hélices (espiroquetas). Necesidad de oxígeno: las bacterias también se clasifican en dos grupos, según si necesitan oxígeno para vivir.

explicacion:

:-t          

7 0
2 years ago
7. All the recolonizing species are autotrophs. How do they get their energy?
Tresset [83]

7. The correct answer is photosynthesis.

Autotrophs are organisms which produce food for themselves-from simple to complex molecules. In the case of photosynthesis, producers (plants or some algae) use the light energy to produce complex organic compounds (carbohydrates, fats, and proteins).

8. The correct answer is primary consumers.

Since the pioneer species are usually autotrophs because there is no other source of energy except light energy in the early stages of succession (after the eruption). Most likely, the primary consumer will appear next because they feed upon producers.

9. The correct answer is: they are different populations of fish.

Those two different kinds of fish have unique adaptations that enable them to survive and live in distinct environments. It is most likely that molecular changes underlie adaptation and speciation of those fishes.


8 0
3 years ago
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