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Art [367]
3 years ago
11

A diatom has a cell wall made of _____. silica calcium chitin cellulose

Biology
2 answers:
pentagon [3]3 years ago
4 0

Answer:

Silica

Explanation:

A unique feature of diatom anatomy is that they are surrounded by a cell wall made of silica (hydrated silicon dioxide), called a frustule

Hope this helps!

alexandr402 [8]3 years ago
3 0

Answer:

A diatom has a cell wall made of silica.

Explanation:

Diatoms are eukaryotic phytoplankton cells known for their silica-containing cell walls (frustales), and are responsible for approximately 20% of total primary productivity globally. Diatom silica is a form of biogenic opal, containing oxygen isotopes and can be used in lacustrine and marine paleoenvironmental studies.

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1. Intensity.
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3. Nature of material upon which structure rests.
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Which process allows a mammal to continue to grow in size
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It would be the mitosis of the body cells

Hope this helps :)
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3 years ago
Which of these describes passive immunity? A.It occurs on the binding sites of antibodies. B.It is immunity that occurs after yo
DENIUS [597]

Answer:

C

Explanation:

Becuase fom a vaccine you are recieving antibodies by another animal or human donor.

D is unlinkely since it describes how the mother is nursing the baby, so nothing directly mentioning of the baby recieving any antibodies. The other options also talk about how the body creates its own antibodies, which isn't passive immunity.

3 0
2 years ago
You breed a plant that has purple flowers with a plant that has orange flowers and the resulting offspring has purple and orange
gayaneshka [121]

Answer:

Incomplete dominance

Explanation:

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Usually when two alleles get paired, the characteristics of the dominant allele is expressed while the characteristics associated with recessive alleles are expressed only when the two recessive allele get paired.

Here in this case the characteristics of both type of allele are expressed i.e. both orange and purple strips appear in the offspring. Hence, this case shows the incomplete dominance.

5 0
3 years ago
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