the plasma membrane allows some molecular species to enter and excludes others. it is therefore referred to as a ___ membrane?

Answers

Answer 1
Answer: semi permeable membrane

Related Questions

Which includes the physical characteristics of an organism? gene allele genotype phenotype
The ______ is a colorless mass of soft, gelatin-like material that fills the eyeball behind the lens.
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A geneticist studying fruit flies finds that out of a total population of 400 he observes only 12 flies with red eyes, the rest have black eyes. The percentage of flies with red eyes is
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What must happen for a solar eclipse to occur?a)The moon must pass behind Earth.
b)The moon must be full.
c)The moon's orbit must cross the plane of the ecliptic.
d)The moon's orbit must not cross Earth's penumbra.

Answers

The best answer to the question stated above is letter  C.The moon's orbit must cross the plane of the ecliptic.

>>Solar eclipses happen when the Moon moves between Sun and Earth, blocking the Sun's rays and casting a shadow on Earth.
>>
Solar eclipses can happen only during a new Moon.
>>E
arth's orbit is called the ecliptic plane as the Moon's orbit must cross this plane in order for an eclipse (both solar as well as lunar) to occur

The moon's orbit must cross the plane of the ecliptic for a solar eclipse to occur. The correct option is C.

A solar eclipse takes place when the moon passes between the sun and the Earth, causing the sun to be partially or fully obscured from certain locations on Earth.

For this alignment, the moon's orbit must intersect the plane of the ecliptic, which is the imaginary plane defined by Earth's orbit around the sun.

During a solar eclipse, the moon casts a shadow on the Earth's surface, blocking or partially blocking the sunlight.

This can result in a total solar eclipse, where the sun is completely covered, or a partial solar eclipse, where only a portion of the sun is obscured.

Thus, the correct option is C.

To know more about the Solar eclipse, click here:

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An earthworm receives support and shape from its fluid-filled cavity. It has _____. an endoskeleton an exoskeleton a hydroskeleton no skeleton

Answers

No skeleton, it may look like it but there isn't one. Because when you squish the worm there is nothing but flesh and blood.  However there is a certain type of worm that has a skeleton just not an earthworm. (I don't know what the name is of the worm that has a skeleton.)
Hope this helps:)
a work has no skeleton, which is why it can bend in all different directions, but the main reason i know this, is cause if you pinch a work between your thumb and forefinger, it will break, and there is nothing on the inside of the worm that indicates there is a skeleton

Chromosomes are composed of DNA. TRUE or FALSE.

Answers

It is true that a chromosome is made up of both DNA and proteins which are compacted and condensed.
 >> Along with every organism on Earth, each of the things, is composed of Deoxyribonueclic acid or DNA. In this case, you can say that DNA is present in almost all of the living things on Earth.
This is true. Basically, chromosomes are made of long thin strands of the DNA, packed around proetins, called as histone proteins. They store genetic information inside them. Humans have twenty three pairs of chromosomes in every cell, i.e. 46 chromosomes in total.

which term is commonly used to describe the production of valuable proteins in genetically modified plants and animals?

Answers

The correct is GMO (Genetically Modified Organism.) Genetically Modified Organism is the terms that is commonly used when describing a production of valuable proteins in genetically modified plants and animals. This is also the source of the medicines and genetically modified foods. These are altered using genetic engineering techniques.

From where do we obtain the cells of our test subject?

Answers

I believe we obtain the cells of our test subject from DNA testing

hope it works!!

DNA testing................

Gene therapy, which includes the correction of defective genes, is a significant part of the human genome project. Which of these is an application of the technique?A: A new protein, which can repair defective genes, is injected.
B: Mutated DNA sequences, which can pair with existing genes, are introduced.
C: The DNA sequences of the entire genomes of disease-causing microbes are compared.
D: A new gene, which codes for the protein that can repair defective genes, is introduced.

Answers

The correct answer for the question that is being presented above is this one: "D: A new gene, which codes for the protein that can repair defective genes, is introduced." Gene therapy, which includes the correction of defective genes, is a significant part of the human genome project. Among the following choices, A new gene, which codes for the protein that can repair defective genes, is introduced is an application of the technique.

D: A new gene, which codes for the protein that can repair defective genes, is introduced.