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Marrrta [24]
3 years ago
15

What are the 3 main characteristics of populations?

Biology
2 answers:
MaRussiya [10]3 years ago
7 0

Answer:

Population Size and Density: Total size is generally expressed as the number of individuals in a population. ...

Population dispersion or spatial distribution: ...

Age structure: ...

Natality (birth rate): ...

Mortality (death rate):

Explanation:

olasank [31]3 years ago
3 0

Answer:

Size, Spatial Distribution and age structure or, birth and death rates.

Explanation:

Demography is the study of a population, the total number of people or organisms in a given area. Understanding how population characteristics such as size, spatial distribution, age structure, or birth rates change over time can help scientists and/or governments.

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Explain /Define About Epidermis In Plant According To Class 9th<br>Plz Answer It Guys​
jasenka [17]
<h3 />

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

<h3>⇝ <u>Epidermis</u> :</h3>

Protective tissues includes epidermis & cork. Epidermis is basically a simple permanent tissue, protective in function. It forms one-cell-thick covering over all the parts of plant.

<h3>⇝ <u>Characteristics of Epidermis</u> : </h3>
  • Epidermis is formed of living cells, arranged in a single layer.

  • In aerial parts, epidermis is covered with a waterproof and noncellular waxy covering called cuticle.

  • Cells form a continuous layer, but in leaves epidermis has small openings called stomata.

  • Each stoma is guarded by a pair of bean-shaped guard cells which govern opening & closing of stomatal aperture.

<h3>⇝ <u>Functions of Epidermis</u> :</h3>
  • Epidermis protects the underlying tissues from mechanical injury, chemicals & infection.

  • Cuticle of epidermis protects against water loss & desiccation. It checks the rate of transpiration & evaporation and prevents wilting.

  • Stomata in the epidermis of leaves help in gaseous exchange during respiration & photosynthesis.

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

8 0
2 years ago
What can you learn from observing and comparing specific physical traits of different birds
Natali5045456 [20]
When you observe and compare specific physical traits of different birds you will learn that some birds have characteristics that help them live and survive in their own habitat that other birds may not have but make up those birds have characteristics that help them in their own habitat.  
7 0
3 years ago
What are the three major steps involved in mRNA processing?
LenaWriter [7]
Splicing, adding of the cap and tail, and the exit of the mRNA from the nucleus.
4 0
3 years ago
Has anyone taken the Biology B Unit 3: Animals unit test yet? If so can someone give me the answers.
8_murik_8 [283]

Answer:

1)A

2)D

3)B

4)B

5)D

6)C

7)D

8)D

9)C

10)C

11)C

12)A

13)A

14)B

15)C

16)C

17)True

18)False

19)False

20)True

21)Cladogram

22)Body Plan

23)Deuterostomes

24)Tools

25)Osmosis

26)Sensory Neurons

27)External

got 100% hope that helps anyone

Explanation:

5 0
3 years ago
TRUE Or false NO WEIRD ANSWERS OR LINKS OR YOU WILL BE REPORTED.
Sedbober [7]

Answer:

True. From what I know it's because many different organisms are on the cladogram.  

:/

explanation:

6 0
3 years ago
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