Answer:
893 snakes after first year
Explanation:
total population= 900
death = 30 per year left= 900-30= 870
birth each year= 20 per year so 870 +20= 890 snakes
6 snakes migrate into the population = 890 + 6= 896 snakes
3 migrate out of the population per year = 896-3= 893 snakes
After accounting for annual birth rate, death rate, and net migration, the snake population after one year would be 893 individuals.
To find out how many individuals are in the population after the first year, we start with the initial count of 900 snakes. We then subtract the death rate, or number of snakes dying per year (30), add the birth rate, or number of snakes being born per year (20), then also add the net migration, or difference between snakes moving into and out of the area (6 entering - 3 exiting = 3 net influx).
So the calculation would look like this: 900 (initial population) - 30 (death rate) + 20 (birth rate) + 3 (net migration) = 893
Therefore, after one year, there would be 893 snakes in this population.
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Answer:
Natural selection is still influencing the evolution of a wide variety of human traits, from when people start having children to their body mass index, reports a study published Monday in the journal Proceedings of the National Academy of Sciences.
Explanation:
Answer:
Explanation:
an example is the ability to endure the sugar, lactose, in milk. In many places of the world, people can't drink milk in light of the fact that their body turns off the intestinal creation of lactase, a chemical that processes the sugar in the milk.
Answer:
the answer is c I promise
Explanation:
I just took the test
About 0.55 million or 550,000 years ago the earliest South Asian river dolphin evolved.
About 0.5 million years ago the South Asian dolphin evolved due to different environmental conditions. South Asian dolphin have very flexible necks due to no fusion of their neck vertebrae. They are using echolocation to navigate and search for prey.
Research indicates that South Asian dolphin diverged from a common ancestor around 550,000 years ago that lives in the Indus and Ganges basins so we can conclude that the South Asian dolphin evolved around 0.55 years ago.
Learn more: brainly.com/question/23139449
Answer:
26 million years ago
Explanation:
Answer:
Answer
Explanation:
It cause for disasters like lost of crop which causes no food and starvation. It also causes farms to lose money and thus is limiting farming,the citizens,and even the economy .
You are an aspiring botanist and decide to study some orchid genetics. Knowing that the pink color phenotype is an incompletely dominant phenotype, you decide to study it further. You discover that when you cross two pink orchids, you only ever obtain a phenotypic ratio of 1/3 white orchids to 2/3 pink orchids. How might you explain this phenomenon
A)The dominant color allele produces a lethal phenotype when one copy is present. B)The recessive color allele produces a lethal phenotype when two copies are present. C)The dominant color allele produces a lethal phenotype when two copies are present. D)The recessive color allele produces a lethal phenotype when one copy is present
Answer:
C)The dominant color allele produces a lethal phenotype when two copies are present.
Explanation:
Let's suppose that allele R gives a pink phenotype in the heterozygous condition while the allele r gives white phenotype in the homozygous genotypes. So, the genotype of the pink orchids would be Rr. A cross between two Rr plants obtain progeny in following genotype ratio:
1/4 RR: 1/2 Rr: 1/4 rr
Here, the R allele is lethal in homozygous genotypes and the progeny ratio become=
1/3 white: 2/3 pink
Answer:
DNA: TTAAGCCCCAAA
RNA: UUAAGCCCCAAA
Explanation:
A binds with T (Apples on Trees)
C binds with G (Cows eat Grass)
So complementary sequence would be TTAAGCCCCAAA
For RNA sequence:
For RNA:
A binds with U
T binds with A
C binds with G
So RNA complementary will be UUAAGCCCCAAA