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r-ruslan [8.4K]
3 years ago
7

The biomass pyramids for phytoplankton and trees in their respective environments are _______.

Biology
2 answers:
ss7ja [257]3 years ago
6 0

The right answer is opposite.

In the air, the biomass of primary producers is often much higher than the biomass of consumers, especially in forests where a large part of the biomass is wood. In aquatic environments and especially oceanic, the biomass of primary producers (phytoplankton) is generally lower than that of consumers but this biomass is rapidly renewed.

Alja [10]3 years ago
4 0
C. opposite. I just did this question and got it right.




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*10 points* biology ill give you brainliest if right
Gala2k [10]

Answer: B.

Explanation:

Arrows point to penguin, fish, krill, and other birds.

4 0
3 years ago
What are physical characteristics of roundworms?​
Yuliya22 [10]

Answer:

Roundworms can grow up to 3 meters and can be so small they can't be seen with the naked eye. Some roundworms have hooks to cling to certain body parts without being carried away by blood or other fluid. Roundworms are covered in a strong, but flexible, covering

Explanation:

8 0
2 years ago
Why are genetic variation and selective breeding are advantages of sexual reproduction?
soldier1979 [14.2K]
The evolution of sexual reproduction is a great puzzle in modern evolutionary biology. Many groups of eukaryotic organisms, especially most animals and plants, reproduce sexually. The evolution of sex between two organisms of the same species contains two related but different themes: its origin and its maintenance. However, since hypotheses for the origin of sex are difficult to test experimentally, most of the current work has focused on the maintenance of sexual reproduction. Biologists, including W. D. Hamilton, Alexei Kondrashov, and George C. Williams, have proposed various explanations for how sexual reproduction is maintained in a large set of different living things.
5 0
3 years ago
Nuestro planeta esta habitada por numerosas ____, muchas de ellas extendidas en grandes y diversas zonas. Sin embargo, existen e
FinnZ [79.3K]

Answer:

Nuestro planeta esta habitada por numerosas <em>especies</em>, muchas de ellas extendidas en grandes y diversas zonas. Sin embargo, existen especies que habitan una sola <em>área/región</em> con características<em> ambientales</em> únicas para su desarrollo.

Explanation:  

Entre las miles de especies que habitan el planeta, muchas de ellas pueden estar ampliamente distribuidas, mostrando adaptaciones a una gran variedad de ambientes y hábitats, mientras que muchas otras solo se encuentran restringidas a determinadas areas o regiones particulares que presentan condiciones ambientales determinadas. Esta diferencia en distribución esta muy relacionada a la historia de la especie,  a la edad de la misma sobre la tierra, adaptaciones a los ambientes y capacidades reproductivas y de dispersión.

Dentro de la clasificación de especies de acuerdo a su distribución, podemos mencionar a las especies

  • nativas: aquellas que habitan y se distribuyen las áreas naturales donde se originaron,
  • endemicas: entran dentro del concepto de nativas, pero a parte se caracterizan por habitar <u><em>unicamente</em></u><em> una región en particular debido a las condiciones ambientales</em> que les son propicias para su desarrollo. Estas especies no pueden trasladarse a otras regiones.
  • exoticas: aquellas especies que salen de su area natural de distribución para habitar otras areas mas lejanas. Allí pueden establecerse e interactuar con especies nativas sin causar grandes daños.
  • invasoras: especies exoticas que llegan a otras areas, que se establecen y que tienen la capacidad de reproducirse a una tasa superior a la de las especies nativas, invadiendolas y desplazandolas. Interactuan con las especies nativas y causan daños importantes.

Los términos nativos, endemicos, exóticos son <em>relativos al área a la que se esté haciendo alusión</em>: un continente, un país, una región o un bioma.

5 0
3 years ago
Oocasionally, DNA evidence is thrown out of court due to the sample being contaminated.
Nat2105 [25]

Answer: sneezing or coughing over the evidence, direct sunlight on transport an storage

Explanation:

DNA evidence is contaminated when DNA from an outside source (exogenous DNA) gets mixed with DNA relevant to the case. It can happen in a variety of ways, from someone sneezing or coughing over the evidence,

7 0
3 years ago
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