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Alex_Xolod [135]
2 years ago
5

Select which of the following choices is an innate physical barrier. Select one: a. phagocytosis of invading organisms b. releas

e of histamine c. inflammation d. washing action of tears and saliva e. activation of complement
Biology
1 answer:
Tanya [424]2 years ago
6 0

Answer:

inflammation..............

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What is a fungus?<br> Describe what would happen if fungi did not exist.
amid [387]
Fungi are a kind of decomposers.
If there were no fungi, the ecosystem would not exist, and dead organisms would also pile up because there were no decomposers any more.

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3 years ago
What other system does the circulatory system work with?
Svet_ta [14]

Answer:

The respiratory system.

Explanation:

The circulatory system works with the respiratory system. The circulatory system transports oxygen through the body, while the respiratory system supplies the body with that oxygen.

I hope this helps. Happy studying. :)

4 0
3 years ago
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A biochemist isolates and purifies various molecules needed for DNA replication. When she adds these molecules to DNA, replicati
olga55 [171]

Answer:

DNA ligase

Explanation:

<em>The biochemist must have left out DNA ligase enzyme.</em>

<u>The DNA ligase enzyme is able to catalyze the formation of phosphodiester bonds and as such, capable of joining strands of DNA together to form a single strand.</u>

The numerous DNA segments of a few nucleotides long observed by the biochemist must have been the replicated product of the lagging DNA strand. The lagging strand is replicated discontinuously in short strands because the DNA polymerase enzyme can only elongate primers in 5' to 3' direction. The short segments are known as Okazaki segments and are usually joined together to form a whole strand by the DNA ligase enzyme.

Hence, the missing component is the DNA ligase.

3 0
3 years ago
The combined alleles of all the individuals in a population is called the
Yanka [14]
Constatute...........
6 0
3 years ago
In the diagram, what type of mutation is shown?
jeka94

Answer:

substitution - a base was changed

Explanation:

The nucleotide sequence CTT was changed to the sequence CAT. The T was substituted with an A. This changed the encoded amino acid from Glu to Val.

An insertion is where an additional base is added (e.g. if the sequence changed from CTT to CATT)

A deletion is when a base is lost (e.g. if the sequence changed from CTT to CT)

8 0
3 years ago
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