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cricket20 [7]
3 years ago
15

What type of material is a lens

Biology
1 answer:
guapka [62]3 years ago
5 0
It is mostly glass and fiber glass
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How many arms does a squid have?
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Ten arms! Hope this helps!

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Which statement accurately compares archaebacteria and eubacteria?
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The ability to taste the chemical PTC is due to a single gene in humans.
Ganezh [65]

0:3:1

Explanation:

Tasters have the dominant allele for the itter taste of PTC, they can be homozygous TT and heterozygous Tt.

Non-tasters are supposed as autosomal recessive characters

they are homozygous recessive tt when expressed

Given in the equation two heterozygotes parents would produce offspring with the trait in the following ratio.

Tt (parent 1)

Tt (parent 2)

 If a punnet square is made

    T      t

T  TT    Tt

t    Tt     tt

The phenotypic character is in the ratio of 0:3:1

There will be 25% chances of recessive trait of non-tasters in the progeny of heterozygous parents.

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3 years ago
The drawing below illustrates a small portion of the molecules that make up a cell membrane. What is the primary function of the
Ket [755]

Answer:

The correct option is b

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2 years ago
Failure in a particular structure of the heart tends to cause a backup of blood in the lungs, known as pulmonary congestive hear
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Answer:

Left ventricle.

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Human heart is divided into four chambers - two auricles and two ventricles. Heart acts as the pumping organ and carries both oxygenated and deoxygenated blood in the right and left ventricles.

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Thus, the answer is left ventricle.

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2 years ago
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