A unicellular organism with no nucleus is a

Noe is studying Wave A and Wave B. Wave A is rated at 100 dB, and Wave B is rated at 90 dB. Which statement can be made about th

Vera_Pavlovna [14]

Answer: B. Wave A is louder than Wave B.

Explanation: The loudness of sound is measured in unit called decibels (dB).

A decibel unit measures the relative intensity of sounds on a scale from zero to about 100 dB. dB is a measure of intensity, which relates to how much energy the pressure wave has.

Given : Wave A is rated at 100 dB, and Wave B is rated at 90 dB.

Thus we can infer that as wave A has a higher value than wave B, wave A is more louder than wave B.

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3 years ago

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1. Look at the illustration in Figure 25-4. Do you think that the bud on the side of the adult hydra

german

Answer:

A. No, because budding is a type of asexual reproduction.

Explanation:

Asexual reproduction is the process where an organism makes a copy of itself by itself. It does not require a mate to make offspring.

The offspring are genetically identical to the parent.

Budding is a type of asexual reproduction where a small outgrowth of the parent breaks off to become a new organism.

Embryo development is usually only discussed in the context of sexual reproduction, where two gametes fertilize one another and a new organism that is genetically different to either parent is formed.

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3 years ago

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A researcher tests whether dosage level of some drug (low, high) causes significant differences in health. What is this type of

AysviL [449]

Answer:

If a researcher is studying on the dosage level of some drugs, He is doing a PHARMACOLOGICAL studies

Explanation:

Pharmacology is simply the study of how drugs interact with the body and how the body responds to the drugs. It is simply the study of what drugs does to a body and what a body does to the same drug. Pharmacology is divided into two parts ; Pharmacodynamic and Pharmacokinetics

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3 years ago

1. Recorded observations are called __________.

grigory [225]

Answer:

Data
dependent variable
cell
tissue
experiment
energy
independent
environment
community
theory
multicellular
Biology
ecosystem
cell
eukaryotes
dependent/response
respond
Homeostasis
independent
quantitative
theory
theory
population
organisms
Kingdom Fungi
independent/test
population
Archaea
hypothesis
Eukaryotes
Prokaryotic
organelle
regulation/homeostasis
New properties
energy
theory
ecosystem
independent/test
Archaea

Explanation:

All observations and information that scientists perceive and record are called data.
A dependent variable, also known as response variable, defines the treatment/variable that changes in response to the independent variable.
According to the second postulate of the Cell Theory, the cell is the basic structural and functional unit of life.
Cells that perform similar functions are grouped together to form tissues.
An experiment is a controlled setting/test that investigates (proves or disproves) a scientist's hypotheses.
One of the major properties of life is to harvest and convert energy to drive basic cellular processes.
Independent or test variable does not depend on any other factors. It is itself changed to determine its effect on the response variable.The amount of coke is the independent variable.
Homeostasis is defined as an organism's ability to regulate its internal environment in response to fluctuations in the external environment.
A community is a group of populations (different species) inhabiting one place at one time.
In the scientific method, a good theory generates further hypotheses that can be tested.
Multicellular organisms are composed of more than one cells.
Biology is the scientific study of life. <em>Bio</em> means life and <em>logos</em> means study, thought or reasoning.
An ecosystem is an ecological structure in which both biotic and abiotic factors interact with each other.
According to the second postulate of the Cell Theory, the cell is the basic structural and functional unit of life.
Eukaryotes constitute one entire domain of the tree of life. They are distributed in 4 major kingdoms of life.
A dependent variable, also known as response variable, defines the treatment/variable that changes in response to the independent variable.
Homeostasis is defined as an organism's ability to respond and regulate its internal environment in response to fluctuations in the external environment.
Homeostasis is defined as an organism's ability to respond and regulate its internal environment in response to fluctuations in the external environment.
The experimental and control groups differ in the independent variable as only the experimental group receives the variable or treatment.
Quantitative data is quantifiable, numerical data in which the effects of the independent variable on the response variable can be compared through mathematical and statistical tools.
A good theory is universal,broad in scope and substantiated by a large body of evidence.
A good theory is universal,broad in scope and substantiated by a large body of evidence.
A jungle is a group of a single species of dense vegetation.
An organism is an individual living being composed of cells, tissues, organs and organ systems.
Fungi, being saprophytic in nature are the principal decomposers on Earth.
Independent or test variable does not depend on any other factors. It is itself changed to determine its effect on the response variable.
A population is a single species of organisms inhabiting a single area at a time.
Organisms of the domain Archaea are known to be extremophiles i.e. organisms that can survive and thrive in harsh environmental conditions.
A hypothesis is a potential explanation for observable phenomena.
The three domains of life: Eukarya (Eukaryotes), Archaea and Bacteria (Prokaryotes).
The three domains of life: Eukarya (Eukaryotes), Archaea and Bacteria (Prokaryotes).
A cell is made up of different organelles performing diverse functions for the cell.
The properties of life include: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Each level of the hierarchy of life entails the addition of new properties, complexity and more complex functions.
One of the major properties of life is to harvest and convert energy to drive basic cellular processes.
A well tested and substantiated hypothesis leads to the development of a theory that can further be subjected to experimentation.
An ecosystem is an ecological structure in which both biotic and abiotic factors interact with each other.
Independent or test variable does not depend on any other factors. It is itself changed to determine its effect on the response variable.
The three domains of life: Eukarya (Eukaryotes), Archaea and Bacteria (Prokaryotes).

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3 years ago

4. A wave traveling at 200 m/sec has a wavelength of 2 meters. What is the

dalvyx [7]

Given that,

The speed of a wave, v = 200 m/s

Wavelength, $\lambda=2\ m$

We need to find the frequency of this wave. The relation between wavelength, frequency and the speed is given by :

$v=f\lambda\\\\f=\dfrac{v}{\lambda}\\\\f=\dfrac{200\ m/s}{2\ m}\\\\f=100\ Hz$

So, the frequency of this wave is 100 Hz.

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3 years ago