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slamgirl [31]
3 years ago
10

A ________ is any environmental agent—biological, chemical, or physical—that causes damage. a contaminant b mutagen c teratogen

d zygote
Biology
2 answers:
lesya [120]3 years ago
8 0
A contaminant is any environmental agent -biological,chemical or physical that causes damage.
Ira Lisetskai [31]3 years ago
8 0

Answer;

C. tetratogen


A tetratogen is any environmental agent—biological, chemical, or physical—that causes damage


Explanation;

A tetratogen is any environmental agent—biological, chemical, or physical—that causes damage to the developing embryo or fetus.

Teratogens may cause a birth defect in the child or may halt the pregnancy outright.

The classes of teratogens include radiation, maternal infections, chemicals, and drugs.

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An instrument with a longer tube or larger body has a ______ natural frequency.
Lelu [443]
LOWER  is the answer 

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6 0
3 years ago
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Organism x has an enzyme optimum temperature of 37°C. Organism y has an enzyme optimum temperature of 41°C.
Tema [17]
The answer is D since organism x has a n optimal temperature of 37 degrees Celsius and when organisms y enzyme gets incorporated with enzyme x it will increase enzyme’s x temperature therefore enzyme x will denature meaning it will unfold and it will loose its properties hence loosing its activity because its temperature has been altered.
3 0
3 years ago
Brown mice disappear from the mouse population for two generations and then reappear in the third generation. Give two possible
gizmo_the_mogwai [7]

Answer:

The trait is inherited in the homozygous recessive pattern

Possible mating is between two heterozygous individuals

Explanation:

One possible explanation for this is that the trait for this brown mice has to inherited in the homozygous recessive condition. It is possible for this trait to skip two generations and then reappear if it has to be inherited in the homozygous recessive condition.

Another explanation to complement the first is that for this trait to reappear, there was mating between two heterozygous individuals (with one allele being domiant and the other being recessive). It is possible that all matings within the two skipped generations was between an heterozygous and a homozygous dominant or between two homozygous dominant individuals which will not produce the brown mice..

5 0
3 years ago
Look at the blank with the number 15 in the passage. Which of these answers correctly completes the sentence?
Archy [21]

Answer:

b

Explanation:

its b because it doesnt say any else then 15 or any clues so its tryna trick u

6 0
2 years ago
If an unknown organism has bilateral symmetry and gills, into which phylum can it be classified?
dalvyx [7]

It can be classified in the phylum chordata.

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Sub-phylum: Vertebrata

Division: Gnathostomata

Superclass: pisces (respiration occurs typically by gills)


5 0
3 years ago
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