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nikklg [1K]
3 years ago
13

PLS PLS HELP

Biology
1 answer:
Alenkinab [10]3 years ago
7 0

Answer:

The peacocks are sexually selective when choosing mates, so future allele frequencies may drift.

Explanation:

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What do you call the study of the connections between stress, the body's immune system, and illness?
Monica [59]
The correct answer is Psychoneuroimmunology.
Psychoneuroimmunology is known as the the study of the interplays among the psychological processes and the apprehensive and immune structures of the human body. The main goals of the study are the interactions among the nervous and immune structures and the relationships among mental procedures and fitness.
8 0
3 years ago
Can someone help me fill this out i have no idea
romanna [79]

Answer:

1. Renewable

2. wood

3. Sun ... Wind

4. Water

5. Electricity

Explanation:

6 0
2 years ago
Which biome, typical of Africa, is home to many grazing animals
Marina CMI [18]

Answer:

B. Savanna

Explanation:

Savannas are a transitional biome, not really a forest and not really a desert – just somewhere in between. This habitat is home to many different species of plants and animals around the world, and in Africa it is home to the largest land mammal in the world – the African elephant.

Hope this helped, Have a Great Day!!

5 0
2 years ago
Read 2 more answers
Un instructor desea preparar un experimento sobre movimiento armónico simple. Sólo dispone de una masa de 2 kg pero tiene una co
Sergeeva-Olga [200]

Answer:

Constante de resorte, k = 19.745 N/m

Explanation:

<u>Dados los siguientes datos;</u>

Masa, m = 2 kg

Periodo, T = 2 segundos

Para encontrar la constante del resorte, k;

Period, \; T = 2 \pi \sqrt {\frac {m}{k}}

Dónde;

  • T es el período.
  • m es la masa del objeto.
  • k es la constante del resorte.

Haciendo k el tema de la fórmula, tenemos;

k = \frac {(2 \pi )^{2}m}{T^{2}}

Sustituyendo en la fórmula, tenemos;

k = \frac {(2 * 3.142)^{2} * 2}{2^{2}}

k = \frac {6.284^{2} * 2}{4}

k = \frac {39.49 * 2}{4}

k = \frac {78.98}{4}

<em>Constante de resorte, k = 19.745 N/m</em>

3 0
3 years ago
What causes hydrogen bonding between water molecules
earnstyle [38]

Answer and explanation;

-The hydrogen bonding in water is a a result of partial negative charge on the oxygen of one molecule which forms a hydrogen bond with the partial positive charge on the hydrogen of other molecules.

-When molecules of water are close to each other, their positive and negative regions are attracted to the oppositely-charged regions of nearby water molecules. This force of attraction is called a hydrogen bond. Each water molecule is hydrogen bonded to four others.

-This important property of hydrogen bond occurs in polar molecules such as water which contains weak, partial negative charge at one region of a molecule and also a partial positive charge elsewhere in the molecule.

4 0
3 years ago
Read 2 more answers
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