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yuradex [85]
4 years ago
5

Two male bighorn sheep butt heads to determine who gets the right to breed with a local group of females; a pack of wolves coord

inate their strategy to attack a struggling newborn elk; a male peacock displays his feathers to entice a nearby hen to mate; and a school of tuna scatters and then reforms as a shark dashes quickly among them. all of these interactions represent _____.
Biology
1 answer:
Katen [24]4 years ago
5 0
All of these represent something called "competition and predation", in which the species competes for strength, or when one species coordinates attacks against a prey species, or when one species hunts another.
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What are the two benefits of using Punnett Squares?
harina [27]

Explanation:

They are useful as they can predict the genetic probability of a particular phenotype arising in a couple's offspring. In other words, it can tell you if you will or will not have a certain trait.

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3 years ago
Nancy is a forensic scientist. she isolated DNA from the hair that she collected at the crime scene. however, the DNA extracted
Stella [2.4K]

Answer:

arkets Around Us

1. Why are goods cheap in a weekly market? (2 m)

Many things in weekly markets are available at cheaper rates because:  They don’t have shops or permanent buildings. So they don’t have to pay rent, electricity

and other expenses.  They don’t have to pay wages to their workers.

2. What are the different kinds of shops that we find in our neighbourhood and how are

they useful to us? (4 m)

There are many shops that sell goods and services in our neighbourhood.  We may buy milk from the dairy, grocery from the departmental stores, etc.  These shops are useful as they are near our home.  We can go there on any day of the week.  The buyers and sellers know each other and may provide different goods on credit.

3. Give reasons why branded goods are affordable only for a few people? (2 m)

Branded goods are affordable only for a few because of the following reasons:  These goods are expensive as they are promoted by advertisement and claim of better

quality.  Big companies sell their products through shops in large urban markets and through special

showrooms.

4. How does a hawker differ from a shop owner? (3 m)

Hawker Shop owner  A hawker generally owns a’ thela’ or

cart which is a movable shop.  A hawker provides door to door

service.  He sells his goods at a minimum

profit.

 A shop owner runs his shop at one

fixed place.  Whenever we need anything we go

there and purchase it.  Here, we get things at a somewhat

costlier rate.

5. Mention the purposes served by the chain of markets? (4 m)

The chain of markets serves the following purpose:  There is no need for the factories to find consumers for their goods.  Whole sellers buy directly from the producers.  Several people get benefited and consumers get goods of their needs.  The goods reach faraway places through the links of traders.

6. Explain how buying and selling takes place in different ways without going to market

place? (3 m)  We can order goods that we need over the telephone and get their delivery.  Over the internet, we can visit the concerned website and order the products.  We can pay through internet banking or on the delivery of goods.

7 0
2 years ago
Which of the following present challenges that make gas exchange more difficult for fish than for terrestrial animals? Select al
Oksi-84 [34.3K]

Answer:

A. Water is denser and more viscous than air.

B. Water contains much less O2 than air per unit volume.

E. Diffusion occurs more slowly in water than in air.

Explanation:

The gas exchange for aquatic animals is more difficult than for terrestrial animal because of several reasons like water is denser and vicious than air so the diffusion of oxygen in air is much faster than the diffusion of oxygen in the water.  

The concentration of oxygen in the air is much higher than the concentration in the water. In air the concentration of oxygen in 21% but in water, it is a tiny fraction of 1 percent oxygen. The oxygen holding capacity of warm water becomes less in cold water. So the right answer is A, B, and E.

8 0
4 years ago
_______ flow inward to the central nervous system from sensors in the periphery, while _______ flow outward from the central ner
Taya2010 [7]

<u>afferent signals</u> flow inward to the central nervous system from sensors in the periphery, while <u>efferent signals</u> flow outward from the central nervous system to the periphery.

Due to technical problems, you will find the complete explanation about the reflex arc in the attached files.

You will learn more about the reflex arc at

brainly.com/question/894334

brainly.com/question/12876504

brainly.com/question/13455404

#SPJ1

Download pdf
5 0
2 years ago
Can nucleotide be used in a sentence
sergey [27]
Yes, nucleotide can be used in a sentence. For example, you could say:

DNA is made of Deoxyribonucleotides, while RNA is made of Ribonucleotides, because deoxyribo and ribo refer to deoxyribose, meaning without one oxygen molecule, and ribose, with oxygen molecules.
7 0
3 years ago
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