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Lisa [10]
3 years ago
8

Which of these is the best indication of the relative age of a rock layer

Biology
2 answers:
liraira [26]3 years ago
6 0
How far down it is. Newer rock is on top, older rock is on the bottom
ira [324]3 years ago
5 0
The number of different rock and sediment layers in the ground.
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Which level of organization is seen in both Arachnoidiscus ehrenbergi and the human stomach? cell tissue organ organ system
guajiro [1.7K]

Answer;

Cell  

Explanation;

-The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

-Cell is the basic unit and building block of life. It is bound by a cell membrane, and possesses a nucleus which acts as its brain. Arachnoidiscus ehrenbergi  is an example of diatoms which are unicellular, therefore it is a cell.

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When the organisms of a particular population seek habitats that are unevenly spaced, the distribution of the individuals in the
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I think randomWhen neutral interactions between individuals and environment; unequal distribution of resources and
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Answer:

Sadness is caused when there is a strong emotional reaction to a particular object.

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Explanation:

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2 years ago
Why does the action potential only move away from the cell body?
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2 years ago
What is the probability that the first offspring from the cross listed below will be heterozygous for all loci?
Tanya [424]

Answer and Explanation:

<u>Cross:</u> aa Bb dd Ee x AA bb Dd Ee

We can calculate the probability of getting heterozygous individuals in the progeny by using the <u>product rule</u>. Assuming that these four genes <u>assort independently</u> (<em>events that occur independently from each other</em>), we can infer that the F1 will have the next genotypic proportions for each gene:

1) aa     x     AA

F1) 4/4=1 Aa

2) Bb    x    bb

F1) ½ bb

     ½ Bb

3) dd    x    Dd

F1) ½ dd

     ½ Dd

4) Ee    x    Ee

F1) ¼ EE

    2/4 = ½ Ee

     ¼ ee

So, to know what the probability is that the F1 of being heterozygous for all loci, we must multiply the respective individual probabilities of getting a heterozygous genotype, like this:  

1 Aa   x   ½ Bb   x    ½ Dd    x    ½ Ee = 1/8 AaBbDdEe

                                 

6 0
3 years ago
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