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VMariaS [17]
3 years ago
7

What is an effect of short-term exposure to stress

Biology
2 answers:
Bond [772]3 years ago
7 0

A short term exposure to stress can cause improved performance.

oee [108]3 years ago
6 0
Adreninline is the caus
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Which factors can prevent permanent fixation of an allele (i.e. maintain genetic diversity)? Hint: You're going to have to try d
Katyanochek1 [597]

Answer:

The answer is Genetic drift and natural selection.

Explanation:

Genetic drift is a change is genetic composition that enhances organisms adaptation to an environment. The continuous change gives an extra advantage and enhances better chances of survival

Natural selection is the process that results in the adaptation of an organism to its environment by relatively reproducing its genes.

This two factors are the major factors that like causes allele fixation

4 0
3 years ago
1) As algas são seres eucariontes, ______________, fotossintetizantes, dotados de ___________, e podem ser _____________ ou mult
kirill115 [55]

Answer:

As algas são organismos que anteriormente eram incluídos no Reino Plantae, porém atualmente pertencem ao Reino Protista, sendo a Ficologia (fico = algas; logia = estudo) o ramo da biologia que estuda esses seres: unicelular ou multicelular (filamentosas), eucariontes, fotossintetizantes e viventes em ambientes de água doce (rios, lagos ou superfícies úmidas) ou salgada (mares e oceanos).

Esses organismos autotróficos, dispostos na superfície oceânica (compondo o fitoplâncton), consomem o gás oxigênio dissolvido na água para a sua respiração e liberam através do processo fotossintético cerca de 70 a 90% do oxigênio contido na atmosfera. Recebendo, portanto, a denominação de pulmão do mundo, diferente do que muitos pensam que seja a Floresta Amazônica.

A reprodução assexuada pode ser tanto por divisão binária, isso nas unicelulares, onde a célula se divide ao meio; quanto por fragmentação, mecanismo de cisão de um segmento no talo nas algas multicelulares. Contudo, algumas espécies multicelulares reproduzem por zoosporia, utilizando-se de células flageladas que se desprendem do talo, locomovendo-se até um local favorável para o desenvolvimento.

Explanation:

sorry im not fluent in brazilian

this should give you an idea for your answer

3 0
3 years ago
Which of the following best describes chemical weathering? I need this ASAP
beks73 [17]

Answer:

D

Explanation:

A process that changes the composition of rocks causing them to break down.

7 0
3 years ago
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How long after the formation of Earth did the first life appear?
djyliett [7]

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4.54 billon years

Explanation:

the earliest time that life forms first appeared on Earth is at least 3.77 billion years ago possibly as early as 4.28 billion years

6 0
2 years ago
A nucleus of an atom is made of protons and what
Alisiya [41]

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It is made up of protons and neutrons

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