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3 years ago

PLEASE this is important. Why is it harder to kill mosquitoes since they reproduce sexually?

Biology

2 answers:

Vesnalui [34]3 years ago

6 0

Answer:

hablame en español que yo no sé inglés :)

Llana [10]3 years ago

5 0

The fate of mosquito sperm in the female reproductive tract has been addressed sporadically and incompletely, resulting in significant gaps in our understanding of sperm‐female interactions that ultimately lead to fertilization. this is what i put and i got it right

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Calculate the mass defect for oxygen-16 given this data. Round to the 5es001-1.jpg decimal place. mass of an oxygen-16 atom: 15.

Naya [18.7K]

Answer:

Explanation:

Given parameters:

Mass of oxygen atom = 15.994914amu

Mass of a proton = 1.00728amu

Mass of a neutron = 1.00866amu

Unknown:

Mass defect = ?

From the periodic table, the number of the elementary particles in a neutral Oxygen atom is given below:

Number of protons = 8

Number of neutrons = 8

Number of electrons = 8

Solution

The mass defect examines the difference between the actual mass of an atom and sum of masses of the nucleons.

The mass of an atom is concentrated in the nucleus which contains protons and neutrons. Electrons have little to no weight compared with the nucleons.

To calculate the mass defect, we first know the mass of the nucleons first:

1 proton has a mass of 1.00728amu

8 protons will weigh: (8 x 1.00728)amu = 8.05824amu

For the neutrons:

1 neutron has a mass of 1.00866amu

8 neutrons will weigh: (8 x 1.00866)amu = 8.06928amu

Mass of the nucleons = mass of protons + mass of neutrons

= 8.05824amu + 8.06928amu

= 16.12752amu

The mass defect = mass of the nucleons - mass of the atom

= 16.12752amu - 15.994914amu

= 0.132606amu ≅ 0.13261amu to 5 decimal places

6 0

3 years ago

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Are all cattle breeds the same species?

stepan [7]

No just like dogs they differ in some ways

Giddy UP

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3 years ago

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The distinction between sensation and perception ______. Group of answer choices

Ratling [72]

Answer:

The distinction between the sensation and perception allows the researchers to distinguish between the information processed by the receptors versus the information processed in the cortex.

Explanation:

The sensation is a process by which the sensory receptors take up the signals or stimuli from its surroundings and send it to the brain through nerves. Whereas, in the process of perception the brain organizes, combines and makes patterns from the given stimuli and gives the response to the particular stimuli accordingly.

Both sensation and perception are connected to each other hence if one doesn’t work then the other automatically stops working.

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3 years ago

Which best describes cancer cells?

Jet001 [13]

A. They do not exhibit contact inhibitors
B. They lack specialization
C. They have abnormal chromosomes 
D. They fail to undergo apoptosis

A normal, typical and functional cell undergoes cell cycle in normal fashion and eventually reaches apoptosis. Yet cancer cells fail to display just some of these characteristics.

The cycle cycle; mitosis occurs more in your body since it changes, modifies and requires cell division at maximum rate in many useful situations with the stand to a particular system and organ.

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3 years ago

Which statement describes potassium-argon dating?

Fiesta28 [93]

Answer: Potassium-40 decays into argon gas over time.

Explanation: Potassium-argon dating is a dating method used to determine the age of sedimentary rocks by comparing the proportion of K-40 to Ar-40 in a sample of rock, and knowing the decay rate of K-40.

Potassium-40 undergoes decay following first order kinetics as given below:

$_{19}^{40}\textrm{K}\rightarrow _{18}^{40}\textrm{Ar}+_{0}^1e$

3 0

3 years ago

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PLEASE this is important. Why is it harder to kill mosquitoes since they reproduce sexually? ​

PLEASE this is important. Why is it harder to kill mosquitoes since they reproduce sexually?