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solniwko [45]
2 years ago
8

Please help me please

Biology
1 answer:
rosijanka [135]2 years ago
8 0

Answer:

index fossils are fossils used to identify different geological periods of time. they are important for scientists to understand the time frame of which they're collecting strata from. criteria that make thes fossils are being easy to recognize, large in number and size

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The sun's chemical energy is most useful to humans after it is converted to what?
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The process by which plants capture energy from the sun and store it in the chemical bonds of sugars and other food molecules they make.
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3 years ago
The domestic cat genome contains 2.9×109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how man
IgorLugansk [536]

Answer:

Number of nucleosomes in 2.9 * 10^9bp is equal to 1.47 * 10^7

Explanation:

For wounding one nucleosome, total length of DNA required is equal to 146 bp

The length of  linker DNA in mammals is equal to 50 bp

Thus , the total length of DNA that confides between two nucleosome is equal to the sum of wounding length of DNA and the linker length

= 146 + 50\\= 196bp

Thus, in 196bp length of DNA, the total number of nucleosomes is equal to 1

Thus, number of nucleosomes in 2.9 * 10^9bp is equal to

\frac{2.9* 10^9}{196} \\1.47 * 10^7

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2 years ago
The diagram below shows the stump of a tree whose root grew into a small crack in bedrock and split the rock apart.
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A physical weathering k
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Joseph uses classical conditioning to teach his sister to be afraid of squirrels. To be successful, he must pair the neutral sti
Dennis_Churaev [7]

Answer:

<h2>1. unconditioned stimulus, </h2><h2>2. loud noise</h2>

Explanation:

Such type of stimulus that is trigger by the neutral in nature is called a conditioned stimulus such as the sound of the bell and some other. Such type of stimulus that is biologically potent is called an unconditional stimulus such as the taste of food and some other things. When the biologically effective stimulus is used with neutral stimulus then the classical conditions are formed that are used in the learning process.

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3 years ago
7. List three things that can bring life to a barren island​
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Plantlife, grow a garden. Animal life, raise some livestock. And a water source, most definitley.

Explanation:

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