Quick help pleaseeeeee

Biology

1 answer:

sashaice [31]3 years ago

8 0

Answer:

HCl is an acid because of H+ ions

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How is stomach acid neutralized in the small intestine

Bingel [31]

"It converts the inactive enzyme pepsinogen into the active enzyme pepsin, which is responsible for digesting proteins in your stomach. HCL also helps digest other foods in your stomach. Ultimately, HCL is neutralized by chemicals secreted in your small intestine." But, use your own words, though. Because I just hit copy & paste. Hope this helps!

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Which is not true about spermatogenesis? the process takes place in the walls of the seminiferous tubules. mature spermatozoa ar

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The process in which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis is known as Spermatogenesis. Thus, the process of spermatogenesis start with mitotic division of the stem cells that is located close to the basement membrane of the tubules. However, a mature male gametes known as sperm but it is commonly known as spermatozoa.

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Which of the following factors are biotic?

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2 years ago

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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:

H0: n1 = n2
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>

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3 years ago