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Kryger [21]
4 years ago
7

Which snail population has the larger average shell thickness, the population from 1871, or the population from the 1980s?

Biology
1 answer:
Neko [114]4 years ago
4 0

Answer:

the population from the 1980s had larger average shell thickness.

Explanation:

The snail population from the 1980s had larger average shell thickness.

The reason is explained as follows.

In the 19 the century , a species of crab called green crab moved to North America . They moved to Cape Cod region . They were predators and used to feed on snails . So a new species of snail evolved there which had thicker cover of shell to protect them from their predators. This was a burning example of process of evolution in modern times. The present generation of snails there now had thicker shell than their ancestors.

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A mixture can be separated by all of the following EXCEPT
serg [7]

Answer:

All are methods to separate mixtures

Explanation:

<em>A mixture consists of 2 or more substances that are mixed physically but not chemically. Hence, mixtures can be separated by any physical separation means which include but not limited to filtration, distillation, sieving, magnetization, and evaporation.</em>

Filtration is usually used to separate suspended particles in a liquid using a membrane of a filter paper. Distillation is used to separate miscible liquids with varying boiling points by evaporating and condensing them back at their respective boiling points. Sieving is used to separate mixtures with varying particle sizes of individual components.

Magnetization is usually used to separate mixtures with, at least, one component with magnetic property. Evaporation is used to separate dissolved solids from liquids.

<u>Hence, all the methods listed are used to separate mixtures.</u>

4 0
3 years ago
Which organism is involved in vegetative reproduction?
Paha777 [63]

Answer:

*So I'm guessing you mean the reproduction of plants*

Bees and other insects such as butterflies and moths.

Bats also help pollinate as well in desert and tropical environments, as well as birds.

Plant reproduction could also occur if an animal eats the fruit of a plant, and proceeds to live its life, then pass (poop out) the seeds much farther from the original location of the parent plant.

8 0
3 years ago
Which medication, imported from france in the 1950s, offered modestly effective relief from the symptoms of schizophrenia for pa
m_a_m_a [10]
Under the commercial name Orazine, Chlopromazine was introduced in the 1950s after a paradigm shift (extremely significant) or change from psychiatrists. Prior to this era, psychiatrists, as whole, did not readily recognize and therefore often improperly treated those with mental disorders.
5 0
4 years ago
During the process of fertilization, which step happens first? A. The sperm's nucleus enters the egg cell. B. Enzymes break down
Tpy6a [65]
The first step I believe is B. Enzymes break down the protective layer of the egg cell.
5 0
3 years ago
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HELP PLEASE ! Which statement best describes the result of meiosis?
Reil [10]

Answer:

D. It produces gametes / sex cells.

Explanation:

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8 0
3 years ago
Read 2 more answers
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