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Aliun [14]
3 years ago
11

Plz help its for a big grade needs at least (10 sentences)!!!!!​

Biology
1 answer:
ICE Princess25 [194]3 years ago
4 0

Answer:

Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.

Atom: has equal number of +ve charge (protons) and -ve charge electrons and hence atom has charge.

Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.

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Scenario 1
velikii [3]

The population of Green-feathered birds decreases due to prefer other colour of male birds.

<h3>Why the population of Green-feathered birds decreases?</h3>

Green-feathered birds are becoming less and less common because of the female bird that choses the blue and red colour male for mating instead of green so that's why the population of Green-feathered birds decreases.

Learn more about mechanism here: brainly.com/question/1320373

3 0
2 years ago
Imprinting helps birds:________
worty [1.4K]

Answer:

c. recognize a member of their own species.

Explanation:

Imprinting is a form of social earning that occurs in a critical period based on early experience, in which an animal develop a sense of identity usually within few hours or days after birth.  

In birds, for example in ducks, once an egg is hatched, the ducklings imprints on the first moving object they see which happens to be the mother. In other to keep track of the mother, they learn to respond to a characteristic sound that have been emitted by the mother. Through imprinting, they are able to distinguish their mother from the rest of the ducks.  Imprintng helps birds to form an identity during early stage at birth, which helps them to recognize members of their own species.

6 0
4 years ago
Will give brainiest!
IgorLugansk [536]
Answer I think the number 1

Diversification Rates Increase With Population Size and Resource Concentration in an Unstructured Habitat
8 0
2 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
When we compare the gravitational force between two objects, which of the following charecteristics of the objects should we con
aivan3 [116]
Mass? bigger mass has more gravitational pull, like why Jupiter has almost 80 moons
7 0
3 years ago
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