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Biology

2 answers:

trapecia [35]4 years ago

6 0

First, the mass of the empty container then pour in all the liquid and read off the mass.

Subtract the mass of the empty container from the total mass.

Hope this helps...Can i have brainliest...

Ne4ueva [31]4 years ago

5 0

The laboratory equipment to be used are the balance and a beaker whose size depends on the volume of the unknown).
First, the mass of the empty container then pour in all the liquid and read off the mass.
Subtract the mass of the empty container from the total mass.

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1. In a population of 200 field mice, 98 mice are homozygous dominant for brown fur (FF), 84 mice are heterozygous (Ff), and 18

iVinArrow [24]

A.
The genotype frequencies can be determined by dividing the number of individuals with a genotype by the total number all the individuals.
FF genotype frequency:
98÷200=0,49. There are approximately 5 homozygous dominant mice in 10.
Ff genotype frequency:
84÷200=0,42. There are approximately 4 heterozygous mice in 10.
ff genotype frequency:
18÷200=0,09. There are approximately 1 homozygous recessive mouse in 10.

B.
To determine the frequency of an allele we can divide the number of times that the allele appears by the total number of alleles.
F allele frequency:
 $\frac{(98*2)+84}{400}$ =0.7
There are 7 F alleles in 10 random alleles.
f allele frequency:
$\frac{84+(18*2)}{400}$ =0.3
There are 3 f alleles in 10 random alleles.

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3 years ago

How do volcanoes provide evidence to scientists to support the idea that matter and energy move within the Earth’s interior?

grin007 [14]

Answer:

Scientists use volcanic activity data from this area to show the relationship between volcanic activity and lithospheric plate motion. Hot Spots and Plate Tectonics: A volcanic hot-spot is an area in the mantle from which heat rises in the form of a thermal plume from deep within the Earth. Higher heat and lower pressure at the base of the lithosphere melts rock and forms magma.

Explanation:

energy moves through everything really

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3 years ago

The important organ of the high level of plants

Leno4ka [110]

Roots and leaves
The major driving force of water uptake in a large tree is transpiration.Transpiration is the process by which plants absorb water through the roots and release it as water vapor through the pores in their leaves. Once this water evaporates, a negative water vapor pressure is created or develops in the surrounding cells of the leaf. when this happens, water is pulled into the leaf from the vascular system, the xylem, to replace the water that has been transpired from the leaf.This pulling of water, or tension, that occurs in the leaf, will extend through the rest of the xylem column of the tree right into the xylem of the roots as result of the cohesive force holding the water molecules along the sides of the xylem tubing.The xylem is a continuous water column extending from the roots to the leaves.Finally, the negative water pressure that occurs even to the roots will result in an increase of water uptake from the soil.

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4 years ago

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Foods that have been subjected to any process such as addition of additives, milling, or cooking are called _____ foods.

drek231 [11]

the answer is processed

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3 years ago

1. Get 1 piece of bread.

Tju [1.3M]

23 because of 1
Piece of bread

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