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zalisa [80]
3 years ago
8

Identical twins were separated at birth and raised by two different families. Years later, one twin was a physically fit member

of the cross-country team, and the other twin was overweight with slightly higher-than-normal blood pressure. The differences in these twins could be explained by the fact that 1. the genes in the two individuals are completely different 2. in twins, each individual inherits genes from only one parent 3. the DNA bases in twins combine differently 4. the environment can influence the expression of genes.​
Biology
2 answers:
Yakvenalex [24]3 years ago
4 0

Answer: The correct answer is actually 4. the environment can influence the expression of genes

Explanation:

antoniya [11.8K]3 years ago
3 0

Answer:

Explanation:

I am not that sure but according to me it will be the option 3.

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What is meant by the following statement? The cell membrane is semipermeable. A. The membrane allows all polar molecules into th
Gennadij [26K]

I believe the correct answer would be B.  Semipermeable means that it allows certain substances to pass through, and certain other ones to not pass through.  So given all of your options, I would say that B makes the most sense.  Hope this helped!

-TTL

7 0
3 years ago
What are the three looped fluid-filled canals in the inner ear that detect the direction of the body's movement?
masya89 [10]

Answer:

The semicircular canals ( vestibular system)

Explanation:

The inner ear of humans is made up of two parts.

  • The cochlea which aid in the hearing process.
  • The vestibular system which aid for balance of the body

The vestibular system comprises of three fluid filled looped canals . The vestibular system comprises of sensory cells which detect even a slight tilting of the head. The fluid filled canals are termed as the semicircular canals. It is due to the vestibular system that we feel a room to bespinning even after we have finished our rotation ride.

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3 years ago
the fertilization of ovules from plant Q by pollen from plant R results in the productions of seeds. What percent of the genes i
Helga [31]

Answer:

The correct answer is - zero or 0%.

Explanation:

The fertilization in flowering plants takes place by fusing the pollen of one plant or flower with the ovum of another plant or flower of the same species normally and form a zygote. The zygote gets an equal amount of genetic material from both parent plants by the process f exchange of the genetic material.

The ovum or the egg cell of the plant is considered as the mother and the mother is responsible for the chloroplast And mitochondria of the progeny so in this case, the ovum and egg cell comes from the only plant Q thus, the percentage of chloroplast genes provided via Plant R is 0%.

6 0
3 years ago
Which of the following best describes the movement of energy in an ecosystem
balu736 [363]

Energy is started from the sun, with 100 percent of the energy given to plants. when the plants are eaten, only 10% of that energy is given to the animal, like a rabbit. When the rabbit is eaten by a larger predator, only 10% is given of the rabbits energy. This continues, so to find the amount of energy within a certain organism you would need to calculate 10% from each original source of energy

8 0
3 years ago
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What effect would you predict acrylamide treatment would have on the mechanical rigidity of a keratinocyte (skin cell)?
Lubov Fominskaja [6]

Answer:

C is surely the answer

C. Disrupting intermediate filaments will result in cells that are more susceptible to mechanical forces. In the case of the keratinocytes, disrupting keratin, a key IF in these cells, would result in very fragile cells. Less force would need to be applied using the magnetic beads to damage them or change their shape.

6 0
3 years ago
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