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natita [175]
3 years ago
15

If pathogens are present a tree is likely to have

Biology
1 answer:
const2013 [10]3 years ago
5 0

Answer:

a. a disease

Explanation:

Pathogens are disease-causing organisms. For example, some bacteria and viruses are pathogens for different species.

Therefore, a tree with pathogens present is likely to have a disease. Different pathogens affect different trees. Examples include Anthracnose , which is caused by a fungus

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It is a very interesting question - the technology is real and the research on eDNA published in a journal in 2017.

eDNA stands for enviornmental DMA sampling. It allows scientist to test water samples for the presence of the DNA of the invasive fish species. It is more effective than traditional methods of sampling because it does not require trapping or sighting of the invasive species. Water samples can be collected anywhere any time and the DNA results are as accurate and detailed as collected from the invasive species themselves. It provides a complete picture of what invasive species are there.

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3 years ago
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Compare the composition of gas in air entering and leaving the trachea in the grasshopper​
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Answer: probably 2

Explanation:

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WITCHER [35]

Answer:

Newfoundland dogs

Explanation:

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3 years ago
Step by step process of photosynthesis
klasskru [66]

Answer:

Step 1-Light Dependent. CO2 and H2O enter the leaf.

Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.

Step 3- Light Dependent. The electrons move down to enzymes.

Step 4-Light Dependent. Sunlight hits the second pigment molecule allowing the enzymes to convert ADP to ATP and NADP+ gets converted to NADPH

Step 5-Light independent. The ATP and NADPH is used by the calvin cycle as a power source for converting carbon dioxide from the atmosphere into simple sugar glucose.  

calvin cycle.

3 0
2 years ago
In eukaryotic cells, ribosomes are found both free in the cytosol and attached to the endoplasmic reticulum (ER). Proteins produ
Natali [406]

Answer:

<h2>1. Protein synthesis on attached ribosomes:</h2><h2>Destination:  cell membrane. </h2><h2>One general function : to be a surface receptor.</h2><h2>2. On free ribosomes- destination:  cytosol </h2><h2>One general function: microfilaments.</h2>

Explanation:

Proteins are synthesized by the process known as translation. Translation occurs by ribosomes as they can be attached with endoplasmic reticulum or they can be free in the cytosol.

Protein is synthesized according to the sequence of nucleotide on mRNA.

Newly synthesized protein contain signals  sequence which targets then for their final destination.

1. ONE ultimate destination of a protein produced on an attached ribosome:  These proteins, after synthesis enter into ER and then according to the signal sequence, they reach to their final destination.

Example: cell membrane.

One general function of the protein -  to be a surface receptor

2. One ultimate destination of a protein produced on a free ribosome: cytosol

One general function of the protein: microfilaments

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3 years ago
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