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Georgia [21]
3 years ago
13

What compartments make the cardiovascular system

Biology
1 answer:
nikklg [1K]3 years ago
7 0
I'm not sure what you mean by "compartments", but the cardiovascular system consists of the heart, blood vessels, and approximately 5 liters of blood.
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Plants get energy from the sun while animals get energy from
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Animals get energy from food.

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Ep-24 what is the best way to avoid running aground
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Describe an organism that uses both asexual and sexual reproduction.
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Also, many living things have evolved to use both asexual and sexual means of reproduction. For example aphids, slime molds, sea anemones, and some starfish are capable of both asexual and sexual reproduction

Explanation:

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2 years ago
Two insecticides will be compared for their effectiveness in eliminating aphids on tomato plants. Forty tomato plants of the Big
densk [106]

Answer:

The t-test

Explanation:

<em>The researcher should use a t-test to compare the two means and check if they are significantly different from each other.</em>

In using the t-test, both null (H0) and alternate (H1) hypothesis are made such that:

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  • H1: n1≠ n2

Thereafter, the value of t is calculated and compared to its critical value on the table. The formula for calculating the t goes thus:

t = \frac{Y_1 - Y_2}{\sqrt{\frac{S_1}{n_1} + \frac{S_2}{n_2}  } }

where, Y1 = mean of population 1, Y2 = mean of population 2, S1 = variance of population 1, S2 = variance of population 2, n1 = number of individuals in population 1 and s2 = number of individuals in population 2.

<em>At the end of the day, if the calculated t value is more than the critical value of t, the H0 is rejected and it shows that the two means are significantly different. Otherwise, the H0 is accepted and this shows that there is not significant difference between the mean of population 1 and that of 2.</em>

7 0
3 years ago
Some snail species' shells can have right-handed direction of shell coiling or left-handed direction of shell coiling. The direc
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The cross between Dd egg-snail and a dd s snail mate will result in snails with genotype 1/2 Dd:1/2 dd and phenotype all right-coiling.

<h3>What is a genotype?</h3>

The genotype refers to the allele combinations that can be found for one or more loci in an individual.

The phenotype refers to how the genes and alleles interact to produce a physical trait in an organism.

In this case, one parent can produce two types of gametes (D and d), whereas the other parent can only produce d gametes.

Learn more about genotypes here:

brainly.com/question/22117

4 0
2 years ago
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