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Semenov [28]
3 years ago
12

The dark brown organic material found in soil is called __________. Question 13 options: compost fertilizer humus sediment

Biology
1 answer:
Svet_ta [14]3 years ago
3 0

The answer to your question is humus.

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I think either rapid of human population growth or global warming
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Suppose an animal is heterozygous AaBb, and the traits are not linked. When meiosis occurs, what is the total number of possible
GrogVix [38]

Answer:

4 possible combinations of gametes

Explanation:

The animal is considered an heterozygotic dihybrid because it involves two genes that have different alleles for both genes. The dihybrid animal undergoes meiosis to produce gametes. According to Mendel in his laws of segregation and independent assortment, the alleles of the two genes separate into gametes independently of one another to produce 4 types of gametes.

Number of possible combinations of gametes formed by an heterozygote can be determined by using 2^n, where n is the number of characters. Number of characters or genes involved in this case is 2, Hence, 2^2 = 4 gametes.

The allelic combination in the four gametes are: AB, Ab, aB, ab.

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4 years ago
Which of the following is an example of pollution?
ozzi
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4 0
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If the density of water is 1 g/ml, what is the mass of 3ml of water?<br><br> PLEASE HELP
SCORPION-xisa [38]

You can use dimensional analysis to figure this out.

=3\ ml × \frac{1g}{ml}

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If done correctly, ml and ml will cancel out, leaving you with grams.

If you don't know dimensional analysis, simply multiply <em>3 ml</em> by <em>1 grams </em>and that should still get you 3 grams.

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