All categories

3 years ago

Help with science plsss

Biology

1 answer:

oksano4ka [1.4K]3 years ago

3 0

Answer:

FIRST ONE

Explanation:

Reproduction. Pink salmon in their native range have a strict two year life cycle, thus odd and even-year populations do not interbreed. In the state of Washington, Pink salmon runs occur on odd years. Adult pink salmon enter spawning streams from the ocean, usually returning to the stream where they originated.

You might be interested in

Evolution is the

lina2011 [118]

Answer:

Evolution is the biological process that happens over time in a population, giving rise to new species. The theory of evolution states that all organisms alive on Earth today have a common ancestor which lived years ago.

Explanation:

Evolution is one of the fundamental reason of diverse life on Earth today. Principally, this process takes place by changes in genetic elements via mutations and crossing-over. The positive changes (mutations) allow the organism to develop better condition in order to survive in changing environmment. However, if the changes takes place at major scale, it also leads to the creation/development of new species. To explain this further, I have added a photograph where we can see how different organisms were evolved in the history of Earth.

5 0

3 years ago

During Meiosis, an important event occurs where the chromosomes that you inherited from your mom exchange pieces with the chromo

elena-14-01-66 [18.8K]

Answer:

Hi, there your answer is D.Crossing Over

Hope This Helps

PLZ CORRECT ME IF I AM WRONG :)

Explanation:

7 0

3 years ago

List 7 organelles shared by both plant and animal cells.

andrew-mc [135]

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Explanation:

5 0

4 years ago

Please help

kobusy [5.1K]

I believe the answer is C. I could be wrong and it may be B

6 0

3 years ago

Read 2 more answers

Some psychologists suggest that sleep has evolved in order to allow humans to dream.

Kay [80]

Answer:

True

Explanation:

Earlier it was believed by researchers that sleep is not a good thing as it does not allow an organism to stay alert all the time due to which there are high chances of such organism being consumed by other organism. However, with the discovery of theory of evolution, it is now believed that sleep has also evolved. Its evolution allows an organism to save energy and conserve it.

Evolved sleep has helped decrease synaptic strength which allows a person to preserve memories and function well during the day time. REM sleep in the early morning makes brain metabolically active even while sleeping and hence, dream comes.

5 0

3 years ago

Help with science plsss​

Help with science plsss