Fertilization can only occur if there is ____

What role do the oceans play in the carbon cycle?

Vika [28.1K]

Answer:

They are a major absorber of carbon dioxide.

Explanation:

Plants present deep under the seas and algae over the Oceans and under it absorb huge amount of CO2 from our atmosphere.

hope it helps!

4 0

4 years ago

What is an example of absolute age?

Eduardwww [97]

Answer:

Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating.

Explanation:

Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating.

5 0

3 years ago

Humerus bones from the same species of animal have approximately the same length-to-width ratios. It is known that Species A has

Dima020 [189]

Answer:

The unearthed Humerous bones don't belong to the species A.

Explanation:

Hello!

You are studying the Humerus bones species A, who is known to have a mean ratio of 8,5. This value corresponds to the population mean of the length-to-with ratio of bones of species A, symbolized as μ.

The hypothesis you want to study is "The Humorous bones unearthed belong to the species A" if you assume this to be true, then the mean of the length-to-with ratio should be equal to the known population mean of the length-to-with ratio.

Symbolized:

H₀: μ = 8,5

H₁: μ ≠ 8,5

Significance level: α: 0,05

You are asked to use a Z-test, since you don't know the value of the population variance, but have the sample values, the sample size is big enough (more than n=30). Assuming that the sample values are independent, the statistic test of choice is the approximation:

$Z= \frac{x_bar-μ}{S\sqrt[]{n} }$ ≅N(0;1)

The critical region, in this case, it's a two-tailed test (remember the type is determined by the null hypothesis) so you'll have two critical values.

Left value [/tex] $Z_{\alpha/2} = Z_{0,025} = -1,96$

Right value $Z_{1-\alpha/2} = Z_{0,975} = 1,96So you'll reject the null hyphotesis if the calculated [tex]Z_{obs}$ value is ≤-1,96 or ≥1,96 and you'll support it if -1,96< $Z_{obs}$ <1,96

Now we calculate the statistic by replacing the formula with the data:

x_bar = 9,26

S = 1,20

n = 41

$Z_{obs}= \frac{x_bar-μ}{S\sqrt[]{n} }$

$Z_{obs}= \frac{9,26-8,5}{1,20\sqrt[]{41} }$

$Z_{obs}$ = 4,0553

Since the calculated value falls in the rejection region, this means, you have statistically significant results. In other words you can reject the null hipothesis (H₀: μ = 8,5) and asume that the unearthed Humerous bones don't belong to the species A.

I hope you have a SUPER day!

7 0

3 years ago

One alternative to autoclaving for sterilization of liquids is filtration. Imagine that you are using a filter to sterilize a dr

Strike441 [17]

Answer:

c. Fungi

d. Yeast

Explanation:

Both fungi and yeast will be effectively removed by a 0.22 micron pore size filter.

<em>The size of microscopic fungi ranges from 2 to 10 microns while the size of yeast ranges from 3 to 4 microns in diameter. Hence, both organisms will be effectively filtered off by a 0.22 micron filter paper.</em>

The size of bacteria ranges from 0.2 to 2 microns while that of virus is in nanometer. Hence both cannot be effectively removed by a 0.22 micron pore size filter paper.

The correct options are c and d.

5 0

3 years ago

Which forage crop do honey bees favor for its nectar

n200080 [17]

<span>For bees, their forage or food supply consists of nectar and pollen from blooming plants within flight range</span>

8 0

3 years ago

Fertilization can only occur if there is _____ in the environment.