Select the correct answer
Nelly was reading about ecological pesticides. She found a wel
They are then used as pesticides because they are abrasive
te that said that skeletons of some organisms settle as sediments in the ocean
pests. Which organism is the article discussing?
A
dinoflagellates
B.
diatoms
C
green algae
D.
euglenolds
E
amoeba
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Answers
Answer:
B. diatoms
Explanation:
plato
Answer:
B. Diatoms
Hope this helps!
Explanation:
Related Questions
Long radishes crossed with round radishes result in all oval radishes. This type of inheritance is:
Answers
Male birds of two different species living on the same island have developed different mating behaviors, as
shown in the table below.
Species
A
Mating Behavior of Male Birds
rapid chirps while spreading their tail feathers
movement in circles while spreading their tail feathers
B
Which statement is best supported by information in the table?
(1) It is likely that male birds in species A will mate with female birds in species B.
(2) It is likely that birds from species A will only mate with birds from species A.
(3) Male birds from one species will change their mating behavior if the only female birds available are from
the other species.
(4) Mating behaviors are important only when these two species live together in the same area.
Answers
Answer:
It is likely that birds from species A will only mate with birds from species A.
Explanation:
What are the different possible gametes for AABBDd?
Answers
Answer:
8
Explanation:
Diffrent types AaBbDd
In Kingdom Animalia, there are is a wide variety of organisms such as humans, reptiles, fish, birds, insects, and mammals. These organisms are different from each other in many ways. Why would scientists classify all of these organisms into the same Kingdom?
Answers
All living organisms are classified into groups based on very basic, shared characteristics. Organisms within each group are then further divided into smaller groups.
Explanation:
Answer:
D :)
Explanation:
Which of these Electromagnetic waves has the most kinetic energy and can be
dangerous?
O radio waves
O gamma rays
O ultraviolet waves
visible light
Answers
Answer:
Gamma rays
Explanation:
I believe
Whats the carrying capacity?
Answers
Answer:
2003-25
Explanation:
To find carrying capacity on a graph, you need to locate the point on the graph where the population line is horizontal. Alternatively, the carrying capacity may be explicitly marked with a dotted horizontal line or a horizontal line of a different color.
What is pulping
Help me please
Answers
Answer: to crush into a soft, shapeless mass OR a process that extracts fibrous material, cellulose, from wood or other raw material as a prelude to paper making
Hope this helps
Explanation:
What characteristics does carbon have that explain why it can do that?
Answers
describe the effects of lifestyle on the respiratory and circulatory systems
Answers
Answer:
Explanation:
Eating healthy foods, getting enough sleep, and being active every day can help keep your respiratory system, cardiovascular system and immune system strong. Getting enough exercise makes your lungs stronger and better at giving your body the oxygen it needs.
Kyree is heterozygous. |f(W) ) is for waves, and ) if for no wave (w) r no waves What is Kyree's genotype & phenotype?
Answers
Answer:
Kyree b will have waves with a gwnotyoe; We
Explanation:
This question involves a single gene coding the possession or not of waves in humans. Allele W is for possession of waves while allele w is for no waves.
Heterozygous means contains two different alleles of the same gene. In this case, an heterozygous individual will possess allele W and w together i.e. Ww. Since the allele W is dominant over allele w i.e. can mask Its phenotypic expression, an heterozygous offspring (Ww) will phenotypically possess waves.
In humans, B is the allele for brown eyes and b is the allele for blue eyes. Two brothers both have brown eyes, but one of them has both the B and b alleles while the other only has B alleles. Which statement is true about the brothers?
Answers
Answer:
B is the dominate trait, and b is the recessive trait. Putting them together (Bb), would still mean that the brother would have brown eyes, since Bb means that the dominant trait is shown
bb- recessive trait (blue eyes)
Bb - dominant trait (brown eyes)
BB- dominant trait (brown eyes)
Hope this helps!
What are flagella?
A. false feet
B. skinny tails
C. hairlike projections
D. temporary extensions
Answers
Answer:
b
Explanation:
they help the bacteria move around .
Answer:
B
Explanation:
Allows the cell to move around
Which one has higher ecosystem diversity, rain forest or desert?
Answers
Answer: The Rain forest
Interphase lasts for
of a cell's life
98%
80%
50%
20%
Please help I need help nowww pleaseeeeeee
Answers
Answer:
80%
Explanation:
Directions
Now that the lab is complete, it’s time to write your lab report. The purpose of this guide is to help you write a clear and concise report that summarizes the lab you have just completed.
The lab report is composed of three sections:
Section I: Experimental Overview
o Provide background information.
o Include the hypothesis.
o Summarize the procedure.
Section II: Data & Analysis
o Include graphs to display trends in the data.
o Identify trends in the data.
Section III: Conclusions
o Identify if the hypothesis was supported or refuted.
o Provide logical reasoning based on data.
o Explain how the experiment could be improved.
To help you write your lab report, you will first answer the eight questions listed below based on the experiment that you have just completed. Then you will use the answers to these questions to write the lab report that you will turn into your teacher.
You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool.
Questions
Section I: Experimental Overview
1. What is the question that you are trying to answer?
2. What is your hypothesis for this experiment?
3. What methods are you using to test this hypothesis?
Outline the steps of the procedure in full sentences.
Section II: Data & Analysis
4. What graphs would clearly represent the trends in your data?
Your Student Guide includes information on which graphs to construct. Each graph should have the following:
a. an appropriate title
b. appropriate labels for each axis
c. an appropriate scale for each axis
d. the correct units for the data
Complete a rough sketch of each graph.
5. What do the data in your graphs tell you?
Explain in one or two sentences what trend the reader should observe in each of your graphs.
Section III: Conclusions
6. What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
7. How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.
Answers
Answer:
1. What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?
Explore the process for determining the density of a solid using a laboratory procedure. The importance of the lab in the topic is to find how density of an object is and if it can sink or float and it is important to answer the question so you can also find mass and volume.
2. What is your hypothesis (or hypotheses) for this experiment?
If the mass and volume of an object can be measured, then its density can be determined, because density equals mass over volume.
Independent assortment is the exchange of genetic material between
homologous chromosomes.
True Or False
Answers
Answer:
False
Explanation:
According to Gregor Mendel in his law of INDEPENDENT ASSORTMENT, independent assortment of genes is a phenomenon whereby the segregation of the alleles of one gene into gametes occurs independently of the alleles of another gene i.e. their segregation does not affect/influence one another. Independent assortment occurs in the Metaphase 1 of meiosis 1, where homologous chromosomes randomly align at the equator of the cell. This random orientation of homologous chromosomes determines which chromosome will separate into which gamete.
According to the question, the exchange of genetic material between homologous chromosomes is termed CROSSING-OVER. Crossing over or Recombination occurs during the Prophase I state of meiosis I, where non-sister chromatids of homologous chromosomes exchange a portion of their gene.
Hence, the answer is false because the exchange of genetic material between homologous chromosomes is crossing-over.
14. A genotype is the
phenotype is the
that an individual has for a character, while the
of a character.
a. Physical traits; alleles
b. Expressed alleles; unexpressed alleles
C. Alleles from mom; alleles from dad
d. Set of alleles; physical appearance
Answers
Answer:
A genotype is the genetic alleles (combined one from each parent), and phenotype is the physical appearance of said trait.
Explanation:
With peas—
YY is the genotype
Yellow peas in the phenotype
What percent of the offspring will be red, if we cross two pink tulips?
75 %
50 %
25 %
Answers
Answer: 50
Explanation:you are combining two pink to the possibility of the tulips being red will be 50 50
It is a case of incomplete dominance. 25% of the offspring will be red. Therefore, option C is correct.
What is incomplete dominance?When two heterozygous alleles in a gene interact with each other, their traits are expressed partially, because they both are not dominant on each other. This type of dominance is called incomplete dominance.
It is not necessary to do a test to identify the heterozygous in incomplete dominance. The phenotype and genotype ratio is the same in this dominance. Incomplete dominance is different from co-dominance.
When two heterozygous pink tulips (Rr) cross, then 25% red (RR), 50% pink (Rr), and 25% white (rr) tulip flowers are produced. The phenotype and genotype ratio will be 1:2:1. Therefore, option C is correct.
Learn more about incomplete dominance, here:
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Jacque is hiking in the mountains and sees a very large and colorful rock layer. It looks different than the surrounding rock layers. What is the best way for Jacque to investigate what the environment was like when this rock layer was deposited?
Jacque could measure the height of the rock layer.
Jacque could check if the rock layer has fossils in it.
Jacque could look at the color of the surrounding rock layers.
Jacque could chip off a chunk of rock from the rock layer and smell it.
Answers
Answer:
Check if the rock layer has fossils in it.
Explanation:
The rock layer from the inside out and the fossils will tell you how old the rock is.
Jacque could check if the rock layer has fossils in it, as the presence and types of fossils can often provide clues about the environment in which they were formed.
What can a rock layer tell about the environment?To investigate what the environment was like when a rock layer was deposited, there are several approaches that can be taken:
Look for clues in the rock layer itself: The rock layer itself can often provide clues about the environment in which it was formed. For example, the presence of certain minerals or fossil types can indicate the presence of specific conditions, such as warm or cold temperatures, or a marine or terrestrial environment.
Examine the surrounding rock layers: The rock layers above and below the rock layer of interest can provide additional context and clues about the environment. For example, if the surrounding layers are sedimentary rocks, such as sandstone or shale, it may indicate that the area was once covered by water.
Use rock dating techniques: As mentioned earlier, techniques like radiometric dating and relative dating can help determine the age of a rock layer and provide insight into the environment that existed at the time it was formed.
Conduct additional analyses: Depending on the type of rock and the questions being asked, it may be possible to conduct more detailed analyses, such as chemical or isotopic analyses, to gather further information about the conditions under which the rock formed.
Consider the current location of the rock layer: The current location of the rock layer can also provide clues about the environment in which it was formed. For example, if the rock layer is found in a mountain range, it may have formed in a tectonically active area, while a rock layer found in a flat, low-lying area may have formed in a more stable environment.
Learn more about rock dating, here:
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Comparing the skeletons of which of the following fish would
best show the evolution of a fish species?
a male fish and a female fish that could produce offspring
the same fish just before it received a cut and after it healed
a fish that lived recently and a fish that lived a long time ago
the same fish just after it hatched and when it was full-grown
Answers
Answer:
C. a fish that lived recently and a fish that lived a long time ago
Good luck with it :)
A scientist performs an experiment. His results do not support his hypothesis. Which of these should the scientist do?
repeat the experiment and check for errors
change the observations to match the hypothesis
redo the experiment until the expected results are obtained
record and analyze the data after changing the hypothesis
Answers
Answer:
He should repeat the experiment and check for any unknown errors. He should do that because he might have made an unknown mistake that could have messed up his outcome.
Explanation:
He should repeat the experiment and check for any unknown errors. He should do that because he might have made an unknown mistake that could have messed up his outcome.
What is a Schwarzchild radius and what does it have to do with a black hole
Answers
Answer:
The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a physical parameter that shows up in the Schwarzschild solution to Einstein's field equations, corresponding to the radius defining the event horizon of a Schwarzschild black hole
Explanation:
The Schwarzschild radius define the “size” of a black hole. Theorists believe that all the “stuff” inside a black hole collapses into a singularity, an infinitely small and infinitely dense point well inside the boundary defined by the Schwarzschild radius.
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How does light behave?
Answers
Answer: Light behaves like waves, they undergo reflection, refraction and diffraction just like any other wave would.
Explanation:
Light waves move and change direction all the time. But how can we compare them? to all other waves because this behavior happens constantly.
An igneous rock formed inside the Earth with large crystals in called an
Answers
Answer:
granite I think
please answer the multiple choice
Answers
Answer: (2)
Explanation:
Homeostasis is generally maintained by a negative feedback loop that includes a stimulus, sensor, control center, and effector. Negative feedback serves to reduce an excessive response and to keep a variable within the normal range
If strand 1 in a segment of a replicating DNA molecule has the bases A-T-C-C-G-A-G-G-T, the complementary DNA strand would contain the bases
T-A-G-G-C-T-C-C-A
T-U-G-G-C-T-C-C-G
U-A-G-G-C-U-U-C-C
A-T-G-G-C-T-C-C-A
Answers
Answer:The first one
Explanation:
Adenine is to thymine
Guanine is to Cytosine
Where does f(x) = 3x2 – 11x – 4 intersect the x-axis?
The negative x-intercept is at (
, 0).
The positive x-intercept is at (
, 0).
Answers
Answer:
The negative x-intercept is at (-1/3,0)
The positive x-intercept is at (4,0)
Explanation:
Answer:
The negative x-intercept is at (-1/3 , 0).
The positive x-intercept is at (4 , 0).
Explanation:
Where does f(x) = 3x2 – 11x – 4 intersect the x-axis?
The negative x-intercept is at (-1/3 , 0).
The positive x-intercept is at (4 , 0).
Set f(x) equal to zero so
3x2 – 11x – 4 = 0
Plug in a. b, and c into the quadratic formula
and get 2 solutions:
1/3 and -4
take the opposite signs and put it in the x intercepts
Which agent would cause the least damage to a chromosome?
Answers
The answer would be ultrasound.
The ultrasound is considered safe because it uses sound waves for the detection of tissue, organ, baby etc. These waves are considered safe and transfer only a small amount of heat to the tissue in which the ultrasound is done. A little amount of heat is not at all harmful to the body in any means. Early defects of baby can be detected through this procedure, the merits of the process is much higher than its demerits.
Hope this helps !
If you have the flu,should you take antibiotics?
Answers
Which of the following statements supports why sexual reproduction might give organisms the chance to survive a worldwide pandemic?
Question 15 options:
a)
Sexual reproduction produces offspring that are genetically identical.
b)
Sexual reproduction produces offspring that are genetically different.
c)
Sexual reproduction requires time and energy to find a mate.
d)
Sexual reproduction happens at a very rapid rate.
Answers
But don’t quote me if it is wrong.
