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Xelga [282]
3 years ago
8

In a terrestrial ecosystem, mice eat the corn from the field, and the hawks eat the mice. Which explains whether or not the hawk

s will get all the energy contained in the corn that the mice have eaten?. . . . . A.The mice use some of the energy in the corn to carry out their life processes; therefore the hawks will not get all the energy contained in the corn that the mice have eaten.
B.Energy can neither be created nor destroyed; therefore the hawks will get all the energy contained in the corn that the mice have eaten.
Biology
1 answer:
loris [4]3 years ago
3 0

The statement “The mice use some of the energy in the corn to carry out their life processes; therefore the hawks will not get all the energy contained in the corn that the mice have eaten” explains whether or not the hawks will get all the energy contained in the corn that the mice have eaten.

 

<span>A </span>terrestrial ecosystem<span> is an </span>ecosystem<span> found only on landforms. Six primary</span>terrestrial ecosystems<span> exist: tundra, taiga, temperate deciduous forest, tropical rain forest, grassland and desert. A community of organisms and their environment that occurs on the land masses of continents and islands.</span>

 

The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How
weqwewe [10]

Answer:

Scientists know that any response during an experiment is associated only with that cell type.

Explanation:

A cell culture is a group of cells that develops from a single original cell. Biologists can use cell cultures to test cell responses under controlled environmental conditions in order to study interactions between cells, and different processes occurs in it. Cell culture is one of the major tools used in the study of physiology and effect of toxic substances on the cells.

5 0
3 years ago
A science researcher has developed a computer model of the process of DNA replication in a eukaryotic cell. The model includes t
wel

Answer:  Identify the promoter and the stop signal (terminator).

Explanation:

DNA is a molecule that contains the genetic information in all living things. This information is used for the synthesis of proteins that make up the body and carry out vital functions of the organism.

The DNA molecule consists of two strands that wind around each other to form a double helix structure, where each strand has a central part formed by sugars (deoxyribose in the case of DNA) and phosphate groups. The four basic components of DNA are nucleotides: adenine (A), thymine (T), guanine (G) and cytosine (C). The nucleotides are joined together (A to T and G to C) by chemical bonds and form base pairs that connect the two strands of DNA. Depending on the sequence of nucleotides (which have different bases), different proteins are synthesized.

<u>DNA replication consists of synthesizing another identical DNA molecule, using enzymes called polymerases, which are molecules specifically dedicated only to copy DNA. Transcription, on the other hand, is the process by which a copy of messenger RNA (mRNA) is generated from the sequence of a gene in the DNA. </u>This RNA molecule leaves the cell nucleus and enters the cytoplasm, where it directs protein synthesis (a polymer made up of many amino acids).

<u>Protein synthesis, or translation, involves translating the sequence of an mRNA molecule into an amino acid sequence during protein synthesis.</u> The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding sequence of amino acids it encodes. To begin translation, a start codon (set of 3 bases) must first be identified, which is usually AUG that also codes for the amino acid methionine. Then, the codons that follow are read and the corresponding amino acids are added according to the genetic code. The transfer RNA (tRNA) is complementary to the anticodon at specific codons in the messenger RNA and carries the amino acid coding for the codon. In addition, ribosomal RNA (rRNA) is an RNA that is part of ribosomes and is essential for protein synthesis in all living things. rRNAs form the framework of ribosomes and associate with specific proteins to form ribosomal pre-subunits. To finish the translation, a termination codon has to be read, which can be UGA, UAG or UAA.

To revise the model to show transcription to form mRNA, the research should identify the promoter and the stop signal. The promoter is a DNA sequence required to turn a gene on or off. The transcription process starts at the promoter which is usually located near the beginning of a gene and has a binding site for the enzyme that is used to make a messenger RNA (mRNA) molecule. The enzyme RNA polymerase will keep doing the transcription until it reaches a sequence of DNA that is signal which indicates it should stop. This process is called termination, and it happens once the enzyme reaches this sequence, called terminator.

8 0
3 years ago
1. A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father
zvonat [6]

Answer:

C

Explanation:

autsomsal means that it is not x-linked/ realted to gametes. Dominate means that it needs only one X to get the trait

Using the punnet square

             X       x

      x     Xx   xx

      x     Xx   xx

there is 2 X which means there is a 50% change that their child will get the trait

5 0
3 years ago
The balance of nature can be upset by many reasons including natural disasters, human causes, not enough food or space or water.
Len [333]
The correct answer should be Carrying capacity

Carrying capacity is the the number of people, animals, and other life forms, that an ecosystem can sustain without starting to degrade, and all these upsets can destroy it because it can cause people and animals to migrate somewhere or they can destroy the carrying capacity of the already existing one.
4 0
3 years ago
Read 2 more answers
Which of the following is true for genetic diversity:
SCORPION-xisa [38]

Your answer should be C

Hope this helps!

Have a great day!

5 0
3 years ago
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