1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
defon
3 years ago
7

One possible reason why polar bears might not be able to survive if the environment they live in changes is because

Biology
1 answer:
swat323 years ago
5 0
Polar bears are animals that live in cold environments. Their environment should be a place conducive for breeding and propagating their species. If ice caps are melting and the length of the cold season is declining because of the effects of climate change, polar bears will have less time hunting for food. Generally, the coldest season is the best hunting time for polar bears. It is easier to catch seals and fish due to the thickness of the ice and the rise of water in their environment. This time to hunt is enough to restore the polar bears’ body fat and fitness in preparation for the warm season where there is less ice and food. <span>As the warm season lengthens, the condition of the polar bears’ bodies decline resulting to effects that are serious for pregnant polar bears who are nursing and cubs who need their mothers’ energies to survive the harsh environment. </span>
You might be interested in
which of the following of mandels conclusions is a necessary foundation for Darwin's theory of natural selection
Kisachek [45]
Hey there!

Your answer is:

There are alternate versions of a gene.

Hope this helps!
Have a great day! (:
4 0
3 years ago
Read 2 more answers
You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the
krek1111 [17]

Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

Explanation:

A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

  • Chromatids, which are chromosomes, are found in the cell poles.
  • It initiates the formation of the nucleus membrane.
  • The chromosomes begin to turn into chromatin.
  • Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

<em>     a and d. In the other phases described, </em><em><u>S and G1,</u></em><em> no chromosome distribution is observed at the poles.</em>

<em>     c. A somatic cell does not experience </em><em><u>meiosis</u></em><em>.</em>

6 0
3 years ago
What does the author explain in the passage?
exis [7]

Answer:

What passage

Explanation:

please provide an example

5 0
3 years ago
How many consumers are omnivores in the food web below?
lord [1]

Answer:

1

Explanation:

Omnivores are animals that eat both plants and animals. If you look at the bottom of the food web, you need to look for arrows that point towards an animal that also consumes other animals. The arrows indicate that the energy is being transferred from the plants to the omnivore. The Raccoon is the other organism that eats both a producer (blackberries) and other predators such as garter snakes and meadow voles.

Hope this helps!! Comment down below if you have any questions and please considered marking me as brainliest!!

5 0
3 years ago
Read 2 more answers
In Montana, wild huckleberries rely on bears and other herbivores that consume their fruit to spread their seeds. As a result, t
9966 [12]

The huckleberry patches will provide a very high level of consumption efficiency.

<h3>What is consumption efficiency?</h3>

Consumption efficiency refers to the ability of a consumer to be able to derive the maximum level of consumption from a given resource or group of resources.

The huckleberries depend on the animals such as Bears as well as other herbivores for seed dispersal and propagation. These plants have therefore, develop efficient means to encourage dispersal by these animals. The seeds of the Huckleberries are enveloped in sweet, nutritious fruit that is comparatively undefended.

Therefore, the Bears and other herbivores will derive a very high level of consumption efficiency from the Huckleberry patches.

In conclusion, consumption efficiency measures the ability of a consumer to derive maximum consumption. High consumption efficiency implies that the resource provides a great deal of benefit and satisfaction to the consumer.

Learn more about consumption efficiency at: brainly.com/question/17456695

#SPJ1

8 0
2 years ago
Other questions:
  • A female had tubular pregnancy and had to remove her oviducts. Will this affect her in anyway with respect to reproduction ? jus
    15·2 answers
  • What do you think is missing in the food chain
    10·1 answer
  • A client is diagnosed with a peptic ulcer. when teaching about peptic ulcers, the nurse instructs the client to report what kind
    7·1 answer
  • What is one condition that must be met for a population to be in genetic equilibrium?
    8·1 answer
  • Suppose you have two minerals. One mineral fractures into rough pieces, and a second mineral breaks into pieces with smooth surf
    14·1 answer
  • Describe the three types of life cycles a plant can have​
    6·1 answer
  • A microbe is discovered living in an extreme environment near a deep sea vent. The microorganism lacks a nucleus and peptidoglyc
    9·1 answer
  • 4. The parts of the digestive tract (in order) through which food passes are the
    8·1 answer
  • Which term identifies a light-absorbing pigment?
    12·2 answers
  • Point where crossing over takes place between chromatids of the homologous chromosomes during prophase 1
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!