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Lorico [155]
3 years ago
10

Humus represents _____ of the soil composition to 5% b) 60% c) 25% d) 15% e) 50%

Biology
1 answer:
Alex777 [14]3 years ago
7 0

Answer:

The correct answer is B, 60%

Explanation:

Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur

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Daniel [21]

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8 0
3 years ago
A researcher creates a mutant pea plant in which cytokinins are overexpressed and gibberellic acid is underexpressed. What is th
Dmitry [639]

Answer:

C) The pea plant would be shorter with more branches compared to wild-type plants.

Explanation:

Gibberellic acid stimulates the stem growth by promoting elongation and cell division, so having this compound's gene underexpressed will make the plant shorter. On the other hand, cytokinins are located in young cells, particularly the buds, and stimulates its lateral growth. Having a plant with a overexpressed cytokinins gene will make the plant have more branches compared to wild-type plants.

4 0
3 years ago
What is the density of a 75 g cube measuring 4 cm on each side
Tema [17]
D = m/V

m = 75g

V = 4 x 4 x 4 = 64 cm^3

d = 75/64 = 1 11/64 g/cm^3

5 0
4 years ago
Circulating throughout the body, adh arrives at the ____________ of the kidneys.
gogolik [260]
<span>Circulating throughout the body, adh arrives at the nephrons of the kidneys, Nephrons are the basic microscopic functioning unit of the kidneys. Our kidneys consist of millions of nephrons.
ADH stands for anti-diuretic hormone and it is also known as vasopressin and  it is secreted by the pituitary gland and it helps the kidney to maintain the water in the body.</span>
6 0
3 years ago
In this lab, you used a dichotomous key to identify organisms. Why would this skill be valuable to you? Check all possible reaso
Oliga [24]

The reason why a dichotomous key to identify organism is valuable, is because it helps you classify organisms,it helps you identify eco -systems, it helps you analyze an organism's traits.

Explanation:

A dichotomous key is a skill that has been brought about by scientists, to help people to identify and classify organisms.

In Dichotomous key, the main way of identifying an object is by it scientific name.This is because, though two objects might look similar to each other but they might belong to a whole different species.

So, it is is easier to identify the organism from its scientific name, as it will tell us which species it belongs to.

This key is very useful to people who are novice, and don't know much about identifying an organism.

This key also helps identifying, whether an organism belongs to a particular closely related group of organisms or is a separate organism.

It helps one analyze the traits of an organism, and based on their characteristics, it will help you identify and classify the species of the object or organism.

3 0
3 years ago
Read 2 more answers
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