Someone please help me.

Biology

2 answers:

Hatshy [7]3 years ago

6 0

1. hair
2. pore
3. oil gland
4. sweat gland
5. hair follicle
6. blood vessels

sergij07 [2.7K]3 years ago

3 0

Her answer is right :)

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Please help thank you so much<3

lbvjy [14]

Answer:

Explanation:

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3 years ago

Please help me!!!!!

ExtremeBDS [4]

Hey I don't know the answer but what you can do is open another tab and go back to your lesson the answer might be in there.

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3 years ago

A study was done to examine the personal goals of elementary school children. a random sample of 500 students was selected from

aleksley [76]

Since we wish to test the null hypothesis that gender and personal goal are independent. Under the said null hypothesis, the expected number of boys that would select "be good at sports" would be the same more or less with the girls that would select "be good at sports". The difference in their means would be set to zero for this null hypothesis.

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4 years ago

Which diagrams shows reaction pathway that absorbs energy?

postnew [5]

Question:

<em>The diagram shows the potential energy changes for a reaction pathway.</em>

Part 1: Does the diagram illustrate an endothermic or an exothermic reaction? Give reasons in support of your answer.

Part 2: Describe how you can determine the total change in enthalpy and activation energy from the diagram and if each is positive or negative.

Answer:

Part 1: The diagram illustrates an endothermic reaction as the products has a higher potential energy than the reactants do. There is a positive slope of the diagram and there is enough energy to meet the activation energy requirement.

Part 2: You can determine the total change in enthalpy and activation energy from the diagram by the potential energy of the reactants. If the reactants have a high potential energy, then the enthalpy is also high, and if the reactants have a low potential energy, then the enthalpy is low. You can determine if the diagram is positive or negative by knowing if its an endothermic or exothermic reaction. An endothermic reaction is positive because the products are higher than the reactants and a exothermic reaction is negative because the reactants are higher than the products.

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4 years ago

Cacti in the deserts of southwestern North America and some euphorbs of the deserts of Africa, have barrel-shaped stems, short-l

nirvana33 [79]

Answer:

The right answer to this question is option D. Convergent evolution.

Explanation:

Convergent evolution is a process defined by when an organism develops the same, or at least near that, characteristics, for a specific reason, but they don't have the same origin. In this case, the cacti in both deserts have pretty much the same characteristics, and this happens because both these plants need water to survive, and in order to save it, they have barrel-shaped stems, short-lived leaves, and spines. All of these things help them in saving the water and capturing it when it's possible.

The convergent evolution is when both these organisms develop equally, but are not originally from the same place, the environment being the one to shape this.

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3 years ago