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Natalka [10]
3 years ago
9

Which statement best describes the function of the

Biology
1 answer:
MaRussiya [10]3 years ago
3 0
B) They permit exchange between the external atmosphere and the circulatory system.
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Question 8
trapecia [35]

Answer:

Surface Tension

Explanation:

8 0
3 years ago
Is food niche or habitat<br>​
djverab [1.8K]

Answer:

habitat

Explanation:

habitat is part of the ecosystem

niche describes ahow different organisms are linked

4 0
3 years ago
4. A very large molecule consisting of many smaller structural units linked together
kondor19780726 [428]
Nucleic acid is the answer for this problem
8 0
3 years ago
A biologist at World University used Procedure IV to conduct an additional study and found the sequence following below. Using y
Nady [450]

Answer:

Valine-Leucine-Proline-Lysine-Histidine

Explanation:

The central dogma of biology is the process by which DNA is used to synthesize RNA and subsequently amino acid sequence (PROTEIN). The processes of transcription and translation is used in gene expression. Transcription is the process whereby the information encoded in a DNA molecule is used to synthesize a mRNA molecule. Transcription is catalyzed by RNA polymerase enzyme, which uses complementary base pairing rule i.e Adenine(A)-Thymine(T), Guanine(G)-Cytosine(C) pairing.

N.B: Thymine is replaced by Uracil in the mRNA

For the above DNA sequence: CAC GAC GGA TTC GTA, the mRNA sequence will be: GUG CUG CCU AAG CAU

Translation is the second process of gene expression which involves the synthesis of an amino acid sequence from an mRNA molecule. The mRNA is read in a group of three nucleotides called CODON. Each codon specifies an amino acid (see attached image for genetic code)

Based on the attached genetic code, an mRNA sequence: GUG CUG CCU AAG CAU will encode an amino acid sequence: Valine(Val) - Leucine (Leu) -Proline (Pro) -Lysine (Lys) - Histidine (His).

GUG specifies Valine amino acid

CUG specifies Leucine amino acid

CCU specifies Proline amino acid

AAG specifies Lysine amino acid

CAU specifies Histidine amino acid

5 0
3 years ago
According to the theory of plate tectonics, which is one feature that plates carry?
Phoenix [80]

Answer:

seafloor

Explanation:

  • A plate, often described as a lithospheric plate, with seafloor, continents and mountains on top of it.
  • The earth is divided into three layers based on their chemical composition. Undoubtedly, there is a component called the lithosphere.
  • The lithosphere consists of a crust and a portion of a solid upper mantle.
  • Below the lithosphere is the asthenosphere.
  • There are two types of crusts: the continental crust and the oceanic crust.
  • Where there is a seabed there is a sea crust.
  • Mountains are also found in oceanic and continental crusts.
  • The intercontinental layer corresponds to the continents.
8 0
3 years ago
Read 2 more answers
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