Answer:
chemical nature of the membrane
Explanation:
The cell membrane is bilayer of amphipathic phospholipids and proteins The hydrophobic tails of phospholipids make the inner core of the membrane while hydrophilic heads are oriented towards the surface of the membrane.
The membrane is selectively permeable as it allows only nonpolar, small and uncharged substances to pass through its hydrophobic inner core. Hence, the chemical nature of the membrane makes it choose the allowed substances to be transported.
A method that modifies the gene structure of a person to treat and cure illness is called gene therapy.
The correct answer is:
The explanation for this is:
Therefore, gene therapy is a form of genetic engineering that replaces mutated genes to cure diseases.
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Answer:
Gene therapy is a form of genetic engineering.
Gene therapy is an attempt to cure diseases.
Gene therapy involves replacing mutated genes.
Explanation:
Answer:
A muscle which is connected to the skeletal to move are body is know as skeletal muscle
The word which best describes a bird’s role as it eats seeds is: D. niche.
A niche can be defined as the interrelationship that exist between a species of a living organism and a specific environmental condition such as the different abiotic and biotic factors affecting it.
This ultimately implies that, a niche describes the role and position of species of a living organism such as a bird in their habitat or physical environment.
In conclusion, an example of a niche is a bird’s role as it eats seeds.
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B. several distantly related species develop similarities.
C. a species evolves at a slow, steady pace.
D. a species has periods of little evolution interrupted by periods of rapid evolution.
Mass extinction would most likely result from which of the following events?
A. A disease kills off a single species of predator within an ecosystem.
B. A wildfire burns a national park.
C. Global temperatures drop several degrees after several massive volcanic eruptions.
D. A massive earthquake strikes North America.