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PSYCHO15rus [73]
3 years ago
6

PLEASE HELP ME ON THE TOP QUESTION ASAP!!!!!!!

Biology
2 answers:
Sav [38]3 years ago
8 0

Answer:  acid rain

Explanation:

Crazy boy [7]3 years ago
3 0

Answer:

The answer is A

Explanation:

because vinegar combined with chalk creates a chemical reaction when acids and bases combine, they produce water and salts putting the chalk in vinegar starts the chemical reaction as the acid starts to dissolve the calcium carbonate.

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Look at the following sequence: THE FAT CAT ATE THE RAT. Delete the first H, and regroup the letters in groups of three, then wr
PIT_PIT [208]
A balloon and air blow a cat away
7 0
3 years ago
How are rhizomes involved in asexual reproduction of ferns?
Rasek [7]

Answer:

The sporophytes of ferns grow through the rhizome

Explanation:

The gametophyte are responsible for sexual reproduction in plants while the sporophytes are usually responsible for asexual reproduction in plants.

Sporophytes are found in the rhizomes of plants and they help in the asexual reproduction.

This is how rhizomes are involved in asexual reproduction of ferns

7 0
3 years ago
Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing sel
aliina [53]

Answer:

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing selection

The Answer is option A (Disruptive selection)

Explanation:

Selection can either shift the mean value of a trait, reduce the trait's variation, or increase its variation.

Genetic variation which allows natural selection to increase or decrease frequency of alleles already in the population is a source of phenotypic variation as it refers to differences in all the hereditary information of members of the same species.

Disruptive Selection is important in maintaining variation and initiating speciation as it Increases Variation by favoring alleles corresponding to more extreme phenotypes. But for it to occur, the mean phenotype has to experience the lowest fitness. Disruptive selection affects the frequency distributions of alleles and genotypes within a population.

Disruptive selection is based on the variance of a trait in a population as it increases genetic variance by equalizing the frequencies of existing alleles at polymorphic loci (a genetic loci with two or more alleles). Disruptive selection maintains and may even increase variation in natural populations by favoring extreme phenotypes, individuals with extreme values for a trait have greater reproductive success than individuals with intermediate values.

7 0
3 years ago
Mention any two differences between milk teeth and<br> permanent teeth.
Marrrta [24]

Answer:

milk teeth will break as u grow up

and

permenant teeth will never break when u r young but as u grow older many people teeth will break

Explanation:

milk teeth will break as u grow up

and

permenant teeth will never break when u r young but as u grow older many people teeth will break

8 0
3 years ago
Read 2 more answers
What is the advantage/disadvantage of having an O type blood group? Explain your answer in a hospital situation.
erastova [34]

Answer:

O: Type O individuals can donate blood to anyone, because their blood has no antigens. However, they can only receive blood from other type O individuals (because blood with any antigens is seen as foreign).

3 0
3 years ago
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