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egoroff_w [7]
3 years ago
14

If one genotype in a genetically variable population is favored in dry years and a different genotype is favored in wet years, G

roup of answer
choices
- hard selection is likely to occur.
- genetic variation is not necessarily maintained.
- rates of fixation are likely to speed up.
- genetic drift will be a stronger force than selection.
- genetic variation is always maintained.
Biology
1 answer:
12345 [234]3 years ago
3 0

Answer:

Genetic variation is always maintained.

Explanation:

One would think that the part of the population that is not favored in dry years would die and thus reduce the genetic variation but this is not likely to occur, otherwise all the population would die because some individuals would die in wet years and some in dry years. In reality they are able to survive in the transition from dry to humid years or viceversa. Actually, this variability that results from their genetic variability in their adaptability to changes in the climate is what keeps the population alive and able to thrive as time passes.

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n200080 [17]

Answer: Staphylococcus aureus is a gram positive bacteria which is round shaped bacterium that is usually found in the body. They are located in the respiratory track of the body.

Saccharomyces cerevisiae is a yeast species which is used in the brewing, wine making and baking long time ago.

When both of the species were observed under microscope then Saccharomyces cerevisiae will be larger than Staphylococcus aureus.



3 0
3 years ago
The half-life of carbon-14 is 5730 years. Radiocarbon dating can not be used to estimate the age of objects up to about 50,000 o
Nataly [62]

Answer:

False

Explanation:

it can be used to date stuff up to about 50000 years, so i'd say that its halfly false, so false is correct :)

7 0
3 years ago
A geochronological scale measured in Millions of Years Ago or M Y A. Mesozoic era: Triassic period, 250 to 201 MYA, first dinosa
motikmotik

Answer:

<em><u>D. The first flowering plants were introduced toward the end of the Mesozoic era.</u></em>

<em><u /></em>

Explanation:

Following the Paleozoic Era, the Mesozoic Era or <em>Age of Conifers</em> began approximately 250 million years ago. This major geological era brought about the ancestors of many of the plant and animal groups still in existence today.

The Mesozoic era is marked by 3 divisions:

  1. the Triassic Period,
  2. the Jurassic Period,
  3. and the Cretaceous Period.

Animals and plants slowly recovered  after the mass extinction in the Permian-Triassic extinction that led to the eradication of most aquatic marine species. They evolved to exploit varying niches in their environment, leading to a boom in terrestrial animals. Over time the planet's increasingly warm climate, abundant in atmospheric oxygen and carbon dioxide, contributed to the growth of diverse megaflora, that rapidly dominated the planet's terrestrial biosphere.

By the end of the <em>Mesozoic Era</em>, in the Cretaceous period, flowering plants (angiosperms) largely replaced the dominant seed ferns of the <em>Triassic</em>, and the conifers, cycads and gymnosperms of the <em>Jurassic</em>.

<em>Varied dispersal  mechanisms in angiosperms co-evolved with the evolution of certain types of fauna. Plants used animal life, including herbivorous reptiles and early mammal-like species to disperse large seeds.</em>

6 0
3 years ago
Read 2 more answers
Who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.
Paraphin [41]
LeveneChargaffWatson and CrickNirenberg and Matthaei
4 0
1 year ago
GIVING BRAINLIEST!
Elena-2011 [213]
You WILL lose thermal energy cuz heat will always flow from warmer to cooler.

Hope it helps!
5 0
3 years ago
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