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Katena32 [7]
3 years ago
7

Mutation is the only evolutionary mechanism that ________.

Biology
2 answers:
belka [17]3 years ago
8 0
Mutation is the only evolutionary mechanism that does little to change allele frequencies.
snow_tiger [21]3 years ago
4 0

Answer:

is the ultimate source of variation in natural populations

Explanation:

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large proteins such as albumin remain in capillaries rather than diffusing out, resulting in the _____.
Bumek [7]

Answer:

development of an osmotic pressure difference across capillary walls

6 0
3 years ago
In the event of an oil spill, why is it a
Firlakuza [10]

Answer:

The answer is D.

Explanation:

It wont sink down and it stays in one spot.

6 0
2 years ago
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HAPPY NEW YEARS !!! CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!
sp2606 [1]

Answer:

According to the image shown, the country that most closely resembles the population pyramid by age is the United States (option A).

Explanation:

The population pyramid consists of a bar chart that groups the population by age and sex. Each sex is separated into two columns, while from the base to the top the ages are grouped from lowest to highest.

The pyramid by age shown in the image corresponds to a developed country, such as the United States, since the distribution of the population of infants and young people is proportional, being more acute in the advanced ages, acquiring the shape of a bottle.

The "bottle" shape of the population pyramid indicates a controlled birth rate, as well as good availability of basic and sanitary resources, characteristic of a developed country like the United States.

The other options are not correct because:

<em>     C and D. In developing countries such as </em><u><em>Nigeria and Ethiopia</em></u><em>, the birth rate is high - forming a broad base - and the resources available are limited, so there is a progressive decrease as the age groups are distributed, giving a true pyramid shape. </em>

<em>     B. </em><u><em>Italy</em></u><em>, a European country, has a tendency to rhomboidal population pyramids. This is due to a predominance of adult, young and mature, population, low birth rate, good basic and sanitary resources.</em>

6 0
3 years ago
Bacteria that may form endospores include A. E. coli.B. Pseudomonas and Micrococcus.C. Clostridium and Bacillus.D. Enterococcus
Degger [83]

Answer:

C. <em>Clostridium</em> and <em>Bacillus</em>.

Explanation:

<em>Bacillus </em>and <em>Clostridium</em> are the gram-positive bacteria and form endospores. Endospores are the resistant dormant structures formed by some gram-positive bacteria.

These bacteria form the endospores within their vegetative cells. The endospores are highly resistant to environmental stress conditions and make these bacterial genera the dangerous pathogens.

7 0
3 years ago
When substance cools, it loses______ energy to its surroundings
Snezhnost [94]
It's probably heat,if there are multiple choices it'll help if you could give them.
8 0
3 years ago
Read 2 more answers
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