BIOLOGY MIDDLE SCHOOL

Genetic disorders can be caused by a change in the overall chromosome structure or the number of chromosomes.true or false

Answers

Answer 1
Answer: i think it is true not 100% sure but i believe it is true 
Answer 2
Answer:

Answer:

TRUE

Explanation:

Its correct i took the science TOPIC TEST on EDGE.

Good Luck,

8th grader

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Can fish sleep? (and if so how do they do it)

Answers

Yes, fish can sleep! Fish do not have eyelids to close, so they sleep with their eyes open. Depending on the species, fish can sit on the floor of a bowl, for example, to sleep. Others drift close to the bottom.
Fish do sleep.

Knowing that they don't have eyelids (some sharks do) what they do is they "daydream".

In order to seek protection some species tuckle themselves up in the ocean floors, some just "float underwater" and others go into corals for protection just to mention some.


Hope it helped,

Happy homework/ study/ exam!

What does the moth do to avoid predators​

Answers

Answer:

Moths make use of several self defending techniques to avoid predators.

Explanation:

Most people often confuse moth with butterflies, but moth are a different member of Lepidoptera, an flying insect. There are many ways through which moth protect themselves from predators.

Since moths are usually active during the night time, so they often hides in the day time from predators. Another technique that moths use is camouflage, where they can confuse the predators by blending into the surrounding. And when a predator us unable to see a moth, its life is saved. Apart from this, moths are even clever enough to trick bats by their strong detection power.

What is transcription in biology

Answers

Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.

Answer:

first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.

Explanation:

What are the contour lines on a contour map

Answers

In cartography, a contour line joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example atopographic map, which thus shows valleys and hills, and the steepness of slopes. 

Difference between family planning and birth control

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‘Family planning’ is a broad term that includes any measures taken to responsibly prevent pregnancy (birth control, contraception, planning, abortions, permanent infertility procedures, etc.).
Birth control, however, is specifically designed to intervene in a woman’s natural hormones to drastically reduce the possibility of pregnancy (much like contraception)

The alleles BB for black hair and LL for long hair are part of that cat’s

Answers

Is it the Genes? ???????
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