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Rom4ik [11]
3 years ago
13

John loves trout fishing so much that he goes trout fishing several times throughout the year. He began to notice that during th

e dry season the trout had significantly more lice on them than during the rainy season. John, a curious science student, wanted to find out what was causing the increase of lice on the trout. write a testable hypothesis to help John focus his research
Biology
1 answer:
IgorC [24]3 years ago
8 0

A hypothesis could be "the amount of water affect the number of lice found on the trout".

Experiment could be designed with pools with different amounts of water in it. Pools with less water represent the water during the dry season, while those with more water represent the rainy season.


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Dna codes for the sequence of amino acids in the primary structure of a protein, but not for sugars or lipids. This is because?
s2008m [1.1K]

Proteins are the main structural and functional components of cells.

Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid. The mRNA sequence is thus used as a template to assemble in order the chain of amino acids that form a protein.

The sequence of a protein is determined by the DNA of the gene that encodes the protein change in the gene's DNA sequence may lead to a change in the amino acid sequence of the protein. The sequence of amino acids of a protein determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures, such as α-helices and β-strands.

To learn more about amino acid , here

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6 0
1 year ago
Which statement best explains why a plant cell has chloroplasts but most animal <br> cells do not?
irinina [24]

Answer:

Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight. Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria.

Explanation:

5 0
3 years ago
Read 2 more answers
Which strategies are recommended to conserve and manage water? Check all that apply.
kati45 [8]

Answer:

See below

Explanation:

Do not keep the tap running, when washing your hands.

Do not shower every day.

When showering, get in, shut the tap down. While still wet in the shower, but without the water running, start to apply soap and shampoo. Wait a bit and the start the water again to wash it all off. Get out asap.

Do not keep the hose running, when cleaning your car.

Preferably, do <em>not</em> use a hose, but use a broom, to clean the driveway or sidewalk.

Cover the swimming pool, in order to reduce extensive evaporation.

Check for leaks in pipes, hoses, (dripping) faucets and couplings.

If at all possible, reuse wastewater as much as you can.

5 0
3 years ago
How many chromosomes, and which chromosomes, does each of the dughter cells contain
labwork [276]

The question is incomplete. However, if we consider this cell as human cell - the cell contain 23 pairs of chromosomes.

Answer:

Chromosomes consists of the constricted DNA associated with the proteins. Different species has different chromosome number. Two main types of chromosomes are heterochromatin and euchromatin.

The human cells contain the 23 pairs of chromosomes or 46 chromosome. If the cell divides by the process of mitosis than the chromosome number will be same in parent as well as the daughter cell. The daughter cell 23 pairs of chromosomes. If the cell divides by the process of mitosis the cell has 23 chromosome number as the meiosis reduces the chromosome number upto half.

7 0
3 years ago
In the Galapagos Islands, there were many species of tortoises, woodpeckers and other animals. Why were the animals like the tor
choli [55]

Answer:

The animals were different because there were things the animals need to adapt to in the Galapagos that may have changed their appearance. for example a bird may have a different shaped beak because they started to evolve so they could eat foods that were available to them on the island

4 0
3 years ago
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