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joja [24]
3 years ago
11

What is a gene? HELP PLEASE

Biology
2 answers:
In-s [12.5K]3 years ago
7 0

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases.

brainlyest plss

Ugo [173]3 years ago
5 0

Answer:

your mom

Explanation:

its just cuzzzz

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Which term names an underground area that collects and holds a large amount of water?
yanalaym [24]
Hello!

A aquifer<span> names an underground area that collects and holds a large amount of water.

I know this because an aquifer collects water.

~ Hope I helped! ~
</span>
3 0
3 years ago
Read 2 more answers
Help please I’ll give brainliest
kotykmax [81]

Answer:

ok i rlly hope this helps

Explanation:

mass/volume=density

.0057/.0235

=.2425531915 kg/L

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6 0
3 years ago
How can natural selection affect a predator-prey relationship in an ecosystem?
Debora [2.8K]
B Nature selection for traits the allow for increased rates of reproduction and survival over traits that don't, is correct.   

A is also correct
7 0
3 years ago
All of the following are periods off prenatal developments except
qwelly [4]

Explanation:

1. All of the following are periods of prenatal development except:       a.germinal

b.embryonic

c.fetal

<u>d.postpartum</u>

Prenatal development describes the 40 week period before a child’s birth and the processes that occur during that time during prenatal development. Cells containing genetic material called chromosomes determine all physical characteristics of an organism including biological sex, height  and eye color through expression of genes.

  • The germinal stage describes the process from conception through implantation which is approximately two weeks, and begins when an egg is fertilized by sperm to form a zygote.
  • The embryonic stage follows this until week eight of pregnancy; here the zygote divides into multiple cells in layers that determine systems like the nervous system; skeleton and respiratory system. The embryo travels through the fallopian tubes and implants itself in the lining of the uterus where blood vessels form the placenta.
  • During the fetal stage spanning from week 9 until birth,  differentiation,  formation of sex organs internal organs and sensory perception occurs. The fetus also undergoes major brain development to form psychological and psychosocial traits. Immediately following the birth of the fetus is called the postnatal period

Learn more about embryonic development at brainly.com/question/6393374

Learn more about the prenatal period at brainly.com/question/4481556

#LearnWithBrainly

5 0
3 years ago
Is this right i’m confused?
tatiyna
Mark Brainliest please

Answer:

I think answer is 3. Disposable syringes and blood tube

Hazardous medical waste that needs to be carefully disposed of by incineration. Items include clinical waste such as used syringes and needles, used swabs, plasters and bandages.
7 0
3 years ago
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