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Annette [7]
3 years ago
8

First invertebrates to develop a true nervous system​

Biology
1 answer:
Tasya [4]3 years ago
8 0

Answer:

Coelenterates are the first invertebrates to develop a true nervous system.

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What are some examples of how a cell's structure relates to its function in the body?
irakobra [83]

The structure and shape of each type of human cell depends on what function it will perform in the body. For example, red blood cells (RBCs) are very small, flat discs, which allows them to easily fit through narrow capillaries and around sharp corners in the circulatory system to deliver oxygen throughout the body.

The elongated shape of muscle cells allows the contraction proteins to line up in an overlapping pattern that makes muscle flexing possible.

And human sperm cells’ structures allow them to “swim” long distances to reach an egg for fertilization

6 0
3 years ago
When dna microarrays containing asos are used to genotype snps, what form of dna constitutes the probe molecules?
umka2103 [35]

DNA microarray uses 20-40 sequence-specific oligonucleotides as probes to identify the SNP.

DNA microarray is a technique used to measure gene expression. It works on the principle of hybridization.

The genome of the reference organism is attached to a solid surface (silicon chip). The DNA of the test organism is made to hydride with the reference organism. Depending on the level of hybridization the fluorescent or the chemiluminescent is measured to identify the expression.

Single nucleotide polymorphism (SNP) is the change in the single nucleotide of the genome. SNPs can be identified with the help of DNA microarray.

To know more about DNA microarray, visit

brainly.com/question/13745652

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3 0
1 year ago
Which structure is labeled X in the diagram below?
Vladimir [108]

Answer:

Option D

Explanation:

Diagram is attached.

Capsid protein is a form of structural protein which usually forms part of a complex which later produces protective shell around the nucleic acid in a virus. It is also referred to as coat protein or head protein.  

Capsid acts as a distinguishing feature for identifying an integrated viral genome, plasmids and other genetic material of viruses. In fact, viruses are termed as organisms that encode capsid proteins.  

Hence, option D is correct

4 0
3 years ago
Need ko po n help plsss ineed the answer i give brainlist​
Roman55 [17]

Answer:

it sooooiii hqrd i allows need

Explanation:

hellllllp

3 0
3 years ago
Explain the circumstances when a recessive trait will be expressed.
Sophie [7]

Answer:

Mark me as brain list plz

Explanation:

When a trait is recessive, an individual must have two copies of a recessive allele to express the trait. Recessive alleles are denoted by a lowercase letter (a versus A).

6 0
2 years ago
Read 2 more answers
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