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Mademuasel [1]
3 years ago
13

The Pacific sea otter was hunted to near extinction in the early 1900s. The loss of this predator resulted in several changes to

the kelp forest ecosystem. Populations of sea urchins, which are one of the sea otters' favorite prey, grew to historically high numbers. Sea urchins graze on kelp, and the extremely large populations of sea urchins significantly reduced kelp biomass. Researchers have hypothesized that overgrazing of kelp by urchins may have hastened the extinction of the Stellar's sea cow, which also depended on kelp as a food source. Identify the ecosystem relationships that were disrupted in the kelp forests by the loss of sea otters.
Biology
1 answer:
BaLLatris [955]3 years ago
7 0

Answer:

  • Interspecific competition between sea urchins and Stellar's sea cows  
  • Predation fo sea urchins by sea otters

Explanation:

As urchins and Stellar's sea cows feed on seaweed, since these algae are low in quantity, these two organisms end up competing for food, creating an inter-specific competition, which occurs when two organisms compete for the same resource within a same ecological niche. However, as the hedgehog has advantages in this niche, this competition was interrupted.

The otters' predatorism in relation to sea urchins was also interrupted, as the otters reached a very low population level, failing to control the hedgehog population and generating an environmental imbalance.

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Kay [80]

Answer:

a. a plant cell undergoing cytokinesis

Explanation:

Cytokinesis is the process where the cytoplasm divides after mitosis to form two different daughter cells from the parent cell. Animal cell divides by just a cleavage formation. Plant cells have an additional step of formation of cell plate because they have cell wall.

At the end of anaphase and beginning of telophase when the two new daughter nuclei have just formed, cell plat formation begins. Secretory vesicles from golgi body come at equator of the dividing parent cell. These vesicles release all the materials required for cell wall formation. The materials start to form the cell plate which moves outwards till it reaches the division site of parent cell wall. Slowly cell wall arises from cell plate and cytokinesis occurs giving rise to new plant cells.

7 0
3 years ago
When you get fever as a response to an infection, how does it help you fight the infection?
77julia77 [94]

i would have to go with A.

your Ph level in the blood stays the same no matter what because  it is a buffer, and the risein temperature doe not allow ANY reproduction of ANY invasions because it causes an unfavorable habitat for these invading cells to reproduce or even multiply.



((please put as brainliest answer :D))


4 0
3 years ago
Read 2 more answers
two forces are applied on a soccer ball which of the following statements explains why the ball accelerates
dmitriy555 [2]
<span>If an object is accelerating then the forces applied on them are unbalanced, balance forces will cause the object to remain stationary or move at a constant velocity.</span>
5 0
3 years ago
How do products of meiosis I differ from those of meiosis ll?
VLD [36.1K]
Meiosis I is dedicated to forming two Haploid(half chromosome) cells bby separating each pair of chromosomes (one of each type in each cell) and the recombination, or shuffling of genes on each chromosome with its pair by crossing over, While Meiosis II is meant to split the individual chromatids in the haploid cells to create a total or 4 daughter cells 

Hope this helps! :)

3 0
3 years ago
Suppose that ear length in rabbits is controlled by two additive genes, each of which has two alleles. A true-breeding female (a
PilotLPTM [1.2K]

Answer:

The ear length will be 11 cm.

Explanation:

To know about the ear length of F1 generation, we need to know that how much length in centimeters is contributed by each of the alleles. As we know, each allele has the same value for contributing to the effect of ear length, hence we can divide the ear length by 4 to get our results.

As 6 divided by 4 is 1.5 hence, the allele a and b contribute to 1.5 cm of the length of the ear.

6 divided by 4 is 4, hence the alleles And B contribute to 4 cm of the length of the ear.

The F1 generation will have AaBb genotype hence, the lenght will be 4+1.5+4+1.5 = 11 cm.

6 0
3 years ago
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