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jok3333 [9.3K]
3 years ago
12

Question 1 of 10 A scientist is responsible for monitoring water quality in a river that flows by a large city. She monitors the

levels of many substances. This helps her determine the city's impact on the river water. Which substance does she not need to monitor? O A. Phosphates B. Nitrates C. Bacteria D. Carbon​
Biology
2 answers:
velikii [3]3 years ago
8 0

Answer:

D. Carbon

Explanation:

Took the Test on  A P  E X

SCORPION-xisa [38]3 years ago
4 0

Answer:

D

Explanation:

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Scientists studied reproduction in the New Zealand mud snail. They wanted to determine whether reproducing sexually or asexually
lubasha [3.4K]

A hypothesis is a claim that expresses a relationship between variables. D) Asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social interaction.

<h3>What is a hypothesis?</h3>

A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, but not a fact. It is a claim of how it works a relationship between two or more variables.

The researcher hypothesizes in order to predict what is going on or what is expected to occur.

A hypothesis must express what is expected to occur in a perfectly comprehensive manner. There must be a logical relationship between the involved variables. It must be objective. Usually, it is written in the present time.

There are different kinds of hypotheses: descriptive, correlative, differentiative, or causative.  

In the exposed example, researchers wanted to determine whether reproducing sexually or asexually was more beneficial for the snails.

Options,

A) <em>Sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. </em>

The benefit of reproducing sexually is that the risk of mutation is lower.

B) <em>Asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring.</em>

<em />

The benefit of reproducing asexually is that a higher number of descendants are produced, which increases reproductive success.

C) Sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation.

The benefit of reproducing sexually is that it increases genetic variation.

D) Asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social interaction.

The benefit of reproducing asexually is that there is no need for social interaction.

Social interaction does not really benefit snails as a species. This is not a variable that might influence in a significant way snails.

However, variables like the mutation rate, variability, and the number of descendants are useful to test how they benefit or not the snails.  

The hypotheses that would least likely aid the scientists to answer the question is <u>option D</u>.

You can learn more about hypothesis at

brainly.com/question/2657326

brainly.com/question/24897727

#SPJ1  

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2 years ago
A patient is seen for three extra visits during the third trimester of her pregnancy because of her history of pre-eclampsia dur
Alex787 [66]
The ICD-10-CM that should be reported is the O10.013. This is for pregnancies with pre-existing hypertension complicating the pregnancy in the third trimester. Since the patient is predisposed to pre-eclampsia from previous pregnancy and she is in her third trimester, the code to be used is O10.013.
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3 years ago
when you perform a dihybrid cross with two heterozygous individuals for the two traits, what is the expected phenotypic ratio?
Sergeu [11.5K]

Answer:

9:3:3:1

Explanation:

A dihybrid cross tracks two traits. Both parents are heterozygous, and one allele for each trait exhibits complete dominance *. This means that both parents have recessive alleles, but exhibit the dominant phenotype. The phenotype ratio predicted for dihybrid cross is 9:3:3:1. (There's a calculator on google that show the outcomes just to let ya know) hope it's correct .

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3 years ago
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Does sugar molecules provide all elements needed to make four types of macromolecules?
fomenos

Answer:

No, If that was the case, then we should only be eating carbohydrates.

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