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Ksju [112]
3 years ago
11

What is a collection of tissues which does a certain job within a living thing?

Biology
1 answer:
Nataly_w [17]3 years ago
6 0
The answer is C. organs
organs are a group of different tissues working together to complete a life function
hope this helps
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Imagine you are sitting in a very quiet room when suddenly behind you there’s a very loud bang, like a firecracker exploding.
lisov135 [29]

Answer:

A. I would be startled by the sudden noise and would probably take cover some wheres. B. My nerves in my ears would send a signal to my brain causing my twitching muscle fibers to react quickly and heart might stop for a moment.  C. The heart rate would increase the brain would be aware that there may be more sudden noises or events your adrenaline would be pumping and your quick twitch muscle fibers would probably be tense or contracted ready to make quick sudden movements if necessary and your hairs would stick up i guess as extra senses for if something would touch you.  

Explanation:

not to mention but by the time you are startled your senses would probably be heightened due to you being  aware of your surroundings such as you would be constantly looking around you would hear better and probably move quicker for a short period of time due to pumping adrenaline.

5 0
3 years ago
True or false a theory is a scientific idea that has been proven true
mr_godi [17]

Answer:

true

Explanation:

i hove this will help u

6 0
3 years ago
What is a Cell wall?
MatroZZZ [7]
Cell wall is the outer permeable covering in all pants and almost all prokaryotes ! cell wall are mainly made up of cellulose , sometime by chitin!!
8 0
3 years ago
A recent study used umbilical cord blood to test for 25 hydroxyvitamin D, which is an indicator of vitamin D status of the baby.
wariber [46]

Answer:

Null hypothesis: p= 0.65

Alternative Hypothesis: p  < 0.65

Explanation:

Below are the null and alternative hypothesis,

Null hypothesis: p= 0.65

Alternative Hypothesis: p  < 0.65

Test  statistic for text of significance  

z = (pcap –p)/ \sqrt{ [p*(1-p)/n]}

z = (0.576 – 0.65)/ \sqrt{[0.65×1-0.65)/125]}

z = 1.73

P- value Approach

p-value = 0.0414

 

As P-value < 0.05,  we reject the null hypothesis

 There is sufficient evidence  to  conclude that the mother consumed vitamin D supplements during pregnancy. A researcher in a northern region felt that the percentage should be lower for this region because with reduced hours of sunshine during winter months, pregnant women tended to use of higher doses of supplements to compensate.

3 0
3 years ago
you cut your finger and you are bleeding profusely. it appears to be only epidermis. is it true or false? name the anatomical pa
ddd [48]

Answer:

There aren't any blood vessels in the epidermis; they're located right below it in the dermis, the middle layer of our skin. If you cut yourself and bleed, it means you've torn through the epidermis and left the dermis exposed.

Explanation:

3 0
3 years ago
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