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lesya692 [45]
4 years ago
8

A shadow is caused when an object blocks sunlight. For example, when your body blocks sunlight, you may see a shadow of yourself

on the ground. How do you think the shadow of an object, such as a flagpole, would change over the course of the day as the Sun appears to move across the sky?
Biology
1 answer:
Luba_88 [7]4 years ago
6 0

Answer:

The position of the sun affects the change in the direction and size of the shadow of the object. When sunlight is blocked by and object a shadow forms, as the earth moves on its axis daily it looks like the sun rises in the east and sets on the west.

When the sun is low in the sky the more light is blocked by an object which means the shadow will be longer and shadow will always point far from the direction of the sun.

In the morning sun is in the east so the shadow will be towards the west in the morning, shadows are long and point northwest and at noon, shadows are short and point north late afternoon shadows are long and towards the northeast.

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Describe the relative locations of the following bacterial cell components:
Dovator [93]

Answer:

A. outside plasma membrane:

1. cell wall   6. flagella

B. outside of the cell

4. fimbriae   5. pilus

C. in cytoplasm

2. nucleoid   3. ribosome

Explanation:

Bacteria is one of the three domains of cellular organisms. Bacteria are prokaryotes, cells that lack a true nucleus and membrane-bound organelle.

The plasma membrane is the outer membrane that enclosed the cytoplasm and cytoplasmic substance. The cell wall is covering the present out of the cell membrane or plasma membrane. Flagella are attached to the plasma membrane but it is present outside of the plasma membrane.

Fimbriae and pilus are the structure present outside of the cell wall and help to attach it to other cells or any surface. Nucleoid and ribosomes are present in the cytoplasm of the bacterial cell.

8 0
3 years ago
Predict how it is possible for bison's population to thrive in the prairie?
valentinak56 [21]

Answer:

Bison have limited type of natural predators.

Explanation:

A Bison is a land animal which has a similar appearance to that of a buffalo. They are known to be fast,agile and strong.

A prairie habitat is an ecosystem that is considered part of the temperate grasslands, savannas, and shrublands biome by ecologists due to the similarities in the temperate climates, moderate rainfall and composition of grasses, herbs, and shrubs instead of trees as the main and common vegetation type.

This habitat consists of animals and reptiles such as bison, coyote, antelope, badger, elk, prairie dog, otters, foxes,lizards.

This represents a limited number of predators for the Bison

3 0
4 years ago
Which molecule is active during the last step of DNA replication
Gnesinka [82]
DNA polymerase is the answer. Hope it helps. Cheers mate
6 0
3 years ago
Analyze the frequency distribution, which shows how
Lena [83]

Answer:

idk kdndjjd

sdjdhqqwuhf

7 0
3 years ago
As discussed previously, the ABO locus in humans has three alleles, where IAand IBare co-dominant and i is recessive to each. Su
Ivahew [28]

Answer:

Explanation:

using the formula p² + 2pq + 2pr + q²+ 2qr + r² = 1 where p is IA allele is 0.35 and q is IB allele is 0.15.

Thus, the expected frequency of people with type AB blood in this population will be (2pq) = 2 x 0.35 x 0.15 = 0.105

b. The expected frequency of people with type A blood will be p² + 2pr = where r is found using the formular p + q + r = 1 = 1 - (p+q) = 1 - (0.35+0.15) = 0.5

Thus, we have the expected frequency of people with type A blood to be     (0.35² + 2x0.35x0.5) = 0.4725.

c.    <u> p² + 2pr</u> + <u>2pq </u>+ <u>q² + 2qr</u> +<u> r²</u>

       AA AO      AB      BB BO     OO

         1850       180        635      2335

frequency of IA- p = (1850 + 180/2) / 5000 = 0.388

frequency of IB- q = (635 + 180/2) / 5000 = 0.145

frequency of i- r = 2335/ 5000 = 0.467.

since r² = 2335, r = √2335 = 48.32

using the formula p + q + r = 1

4 0
3 years ago
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