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Goryan [66]
3 years ago
10

Which of the following is NOT considered to be a constant in the experiment?

Biology
2 answers:
Serjik [45]3 years ago
4 0

Answer: It would be the plant type

Explanation: Because you are measuring the growth of two different plants so, they can't be the same, All the other options "Are" constant.

zaharov [31]3 years ago
3 0

Answer:

It would be the plant type

Explanation:

This is because you are measuring the growth of 2 different plants, so they can not be the same. all the other options ARE constants

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How is the plasma membrane a fluid mosaic model
GaryK [48]
It consist of integral proteins and trans-membrane proteins and peripheral proteins as well
5 0
3 years ago
Local farmers think that a commonly used pesticide is responsible for the increase in appearance of frogs with an additional app
stira [4]

Answer:

D.-

Explanation:

A control group is needed to carry out the experiment, that control group is the one that is not injected with anything.  Ethanol and pesticide need to be injected into separated groups to document whether it is one or the other that is harmful

4 0
3 years ago
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 <span>homozygous dominant mice in 10.
Ff genotype frequency:
84</span>÷200=0,42. There are approximately 4 <span>heterozygous mice in 10.
ff genotype frequency:
18</span>÷200=0,09. There are approximately 1 <span>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:
</span>\frac{(98*2)+84}{400}<span>=0.7
There are 7 F alleles in 10 random alleles.
f </span>allele frequency:
\frac{84+(18*2)}{400}=0.3
There are 3 f alleles in 10 random alleles.<span>
</span>
6 0
3 years ago
DDT is a synthetic compound commonly used as an insecticide. It was used to control mosquito species that commonly spread diseas
fenix001 [56]

Answer:

The phenomenon that explains the trend seen in the data is that the mosquitoes' evolution has led them to develop resistance to the compound.

Explanation:

This is a very common factor that we can see in insects. The effect of DDT on the species will have different levels of impact. One is going to be more vulnerable to the compound that the rest. However, after many times of exposition to the compound, a few survivors will develop resistance to the compound and their offspring is going to inherit that resistance. Making them increase the resistance over time.

3 0
3 years ago
Where were the temperature of the ocean surface water be the lowest
max2010maxim [7]

Your answer should be A: areas at high latitude

Hope this helps:)

6 0
3 years ago
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