Answer:
a DNA
Explanation:
prove me wrong
|•-•|
Please help !! there are pictures and I need to put words in the boxes next to them that match. These are the words
Precambrian
Paleozoic
Mesozoic
Cenozoic
HELP PLEASE 20 points !!
What variables would you likely need to control? Check all that apply.
how did advancements in technology help scientists better understand process of cell division?
Answer:
As is true for many fields of research, cell biology has always been ... Thanks to these advances we now have access to microscopes and ... You might then also realize that the new method, at least on paper, may have additional applications. ... which makes the technology attractive to yet more scientists.
Explanation:
Hoped I helped you out please mark me brainliest!!!
With the creation of the microscope, humans were able to observe plant and animal cells, and as technology advanced, scientists were able to learn more about these various types of cells.
What is a microscope?A microscope is a device that can be used to examine small objects, including cells. The image of an object is magnified in the microscope by at least one lens.
In most cases, the light is focused on the sample by passing it through a condenser.
After passing through the sample, the light passes through the objective lens, which magnifies the image of the sample, and then to the oculars, where the enlarged image is viewed.
The discovery of the green fluorescent protein (GFP), the development of increasingly sophisticated microscopes, and the development of in vitro assays that faithfully reproduce cellular functions are just a few examples of technological advances that have fueled many areas of cell biology.
Thus, it can be concluded that the advancements in technology help scientists better understand process of cell division.
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Traits are controlled by
hybrids
alleles
purebreds
genetics
Answer:
Genetics
Explanation:
A trait is a specific characteristic of an organism. Traits can be determined by genes or the environment, or more commonly by interactions between them. The genetic contribution to a trait is called the genotype. The outward expression of the genotype is called the phenotype.
What is the process of Asexual reproduction? Honey Bees
And
What is the process of Sexual reproduction? Honey Bees
Answer:
ASEXUAL
female worker bees are able to reproduce asexually: they lay eggs that are essentially fertilised by their own DNA, which develop into new worker bees. The team sequenced the entire genomes of a sample of Cape bees and compared them with other populations of honeybees that reproduce normally.
SEXUAL
The typical story of reproduction is that males and females of an animal species do it sexually. Generally, that's what honeybees do, too. Sperm from a male drone fertilizes a queen's eggs, and she sends out a chemical signal, or pheromone, that renders worker bees, which are all female, sterile when they detect it.
Explanation:
Feeding problems may develop during the preschool years partially because of:_______
a. decreased appetite associated with decreased growth rate.
b. increased appetite associated with increased growth rate.
c. increased metabolic rate.
d. increased need for finger foods.
Answer:
The correct option is A.
decreased appetite associated with decreased growth rate
Explanation:
Feeding problems may develop in preschool age because of decreased appetite associated with decreased growth rate and this is because at the preschool age, there is no rapid growth, the growth rate is reduced which is as a result of decreased appetite for food. We all know that food supply the body with energy and necessary nutrients for growth. When there is decreased appetite enough food needed for growth will not be consumed , hence decrease growth rate.
Precipitation falls to the ground and eventually ends up in the ocean. Which of the following is the most direct way for the water to get from the soil to the ocean? A. By way of a recharge zone with a low percolation rate B. By way of a closed watershed C. By way of an open watershed D. By way of thermohaline circulation within an aquifer
Answer: D. By way of thermohaline circulation within an aquifer
Explanation: The most direct way for the water to get from the soil to the ocean is by way of a recharge zone with a low percolation rate. Human activity in the recharge zone can limit the amount water that reaches the aquifer.
how does a beneficial trait increases an organism's survival and potential reproductive success.
Answer:
This cumbersome trait significantly decreases the male's chances of survival. ... natural selection: that is, that organisms better adapted to their environment would benefit from ... the individual's reproductive success, even at the expense of their survival (Darwin 1871). ... A successful male can potentially sire many offspring.
Explanation:
The beneficial trait increase the survival and potential reproductive success of the organism as they help organism to thrive in their unfavorable changing environment.
Natural selectionThe natural selection can be defined as the differential survival and reproduction of those organisms which have beneficial traits over others.For example, the color change in chameleon helps them to remain undetected from predator population as well as from prey so it helps in increase in rate of survival of chameleon also helps them to reproduce and increase in number.Hence, beneficial traits increase the rate of survival and reproduction of organisms.
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The diagram below shows the water cycle
What process is shown at point A
What process is shown at point B
What process is shown at point C
What process is shown at point A - precipitation
What process is shown at point B - condensation
What process is shown at point C - evaporation
The mass of a cylinder of beetroot was 2.5 g. If its final
mass was 2.7 g, what was the
increase in mass in per cent?
Answer: The percent increase in the mass of cylinder of beetroot is 8%.
Explanation:
To calculate the percent increase in the mass of cylinder, we use the equation:
[tex]\%\text{ increase in mass}=\frac{\text{Final mass - Initial mass}}{\text{Initial mass}}\times 100[/tex]
We are given:
Final mass of the cylinder = 2.7 g
Initial mass of the cylinder = 2.5 g
Putting values in above equation, we get:
[tex]\%\text{ increase in mass}=\frac{2.7-2.5}{2.5}\times 100\\\\\%\text{ increase in mass}=8\%[/tex]
Hence, the percent increase in the mass of cylinder of beetroot is 8%.
Which is a characteristic of diatoms?
Diatoms have two distinct shapes: a few (centric diatoms) are radially symmetric, while most (pennate diatoms) are broadly bilaterally symmetric.
What are Diatoms?Any member of the vast group of several genera of microalgae that can be found in the world's oceans, streams, and soils is referred to as a diatom.
Diatoms can photosynthesize, which allows them to change the dissolved carbon dioxide in the water into oxygen.
For higher-ranking organisms in the food chain, like invertebrates and tiny fish, they serve as a major source of food. In the energy and nutrition cycles of water resources, diatoms can also be vital players.
Diatoms can be divided into two shapes: pennate diatoms, which make up the majority, are broadly bilaterally symmetric, and central diatoms, which make up the minority.
Thus, these are the characteristics of diatoms.
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You have adopted a gray mouse, which you know is a wild type phenotype. When crossed with a white mouse, your gray mouse has a first litter of 3 gray mice and 2 white mice. In the second litter, you observe 3 gray mice and 4 white mice. What is the probable genotype of your gray mouse
What is the major difference during cytokinesis in eukaryotes with or without a cell wall?
Answer:
Cytokinesis in eukaryotic animal cells do not have a cell wall, it occurs through a strangulation process carried out from the plasma membrane, this process is called segmentation. Plant cells are characterized by cytokinesis based on septate, since the cell wall does not allow strangulation.
Explanation:
Cytokinesis means: cell division, it is a cellular process parallel to mitosis whose purpose is the division of the stem cell's cytoplasm between daughter cells. In animal cells, cytokinesis occurs by cleavage. At the end of anaphase and during telophase, the central part of the cell narrows, forming the segmentation groove, which deepens (strangulation). Plant cells, as they lack centrosomes, will form the achromatic spindle from two polar caps. In this case, cytokinesis does not occur by strangulation, but a cell wall is formed between the two daughter cells. This septum, called a fragmoplast, is formed from vesicles from the Golgi apparatus.
The major difference during cytokinesis in eukaryotes with or without a cell
wall is in the formation of cell plate in cells with cell wall while in animal
cells cytokinesis occurs through the formation of a cleavage furrow.
Cytokinesis is the process of cell division in which the cytoplasm divides
into two. Plants have cell walls while animals lack cell walls.
Animal and plant cells form cleavage furrow and cell plate respectively
which aids division into two equal parts.
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Earth makes one full rotation on its axis approximately every 24 hours. If Earth's period of rotation decreased to 20 hours, which of the following changes would occur?
There would be fewer days in a week.
The length of nighttime would increase.
It would take Earth longer to revolve around the Sun.
The length of daylight and nighttime would decrease.
Answer:
The length of daylight and nighttime would decrease.
Explanation:
If 24 hours was decreased to 20, it would shorten night and day time.
Which device works similar to the way kidneys work in the human body? HELP IM BEING TIMED!!!
Hemodialysis uses a machine to pull blood out of the body, filter it, and pump the clean blood back into the body again. The actual filtering happens in a part of the machine called a dialyzer, or artificial kidney. The dialyzer has two parts. One part is for blood.
i hope this is right-
I really need someone who is good at biology please
Answer:
What's the question?
Answer:
whats the question
Explanation:
look at the picture
All energy comes from the sun. In 2-3 sentences, explain how it is transferred from one organism to another.
Answer:
When the sun rays come down into the atmosphere and the plants on the ground use photosynthesis to reproduce and eat. If an animal, for example, a bunny, eats grass the energy will be transferred to the bunny. If a fox eats the bunny, the energy transfers to the fox. the amount of energy will be reduced each time something is eaten because it keeps being consumed over and over.
Explanation:
What is and example of an molecule
Muscle tissue
Protein
Stomach
Unicellular organism
A zebra cell is just about to replicate its DNA.
What will happen first?
RNA attaches to DNA.
All of the cell’s DNA attaches to proteins.
The DNA folds over on itself to create a dense chromosome.
The DNA unravels to make two strands.
Answer:
It will create two strands.
Explanation:
DNA always has two strands. Answer is it will create two strands
Goodbye
Answer:
The answer to this question is the DNA unravels to make two strands.
Explanation:
I attached a file of the correct answer for proof to help you guys out.
Hope this helps! :)
Phototropism -
Definition:
Sentence:
Picture:
Can someone please help me?!
Answer:
Phototropism is the type of tropism where an organism responds to light as the stimulus.
Forexample, a plant enclosed in a box with a small hole and placed in light, the tip of the plant will grow towards the hole
1 The blank
is the sun and
all of the planets and other bodies that travel
around it.
Answer:
solar system
Explanation:
7. Which of these are characteristics of viruses? (Select all that apply.)
not living organisms
are single-celled
are decomposers
cannot reproduce without a host
Answer:
I believe the answers are not living organisms and cannot reproduce without a host.
Explanation:
Which molecule is split apart during the light reactions in photosynthesis?
A. Water
O B. Carbon dioxide
ООО
C. Glucose
D. ATP
Which method of food production is sustainable?
A. Planting only a single type of crop
B. Improving food storage facilities
c. Overusing antibiotics on livestock
D. Practicing intensive farming
Answer:
Improving food storage facilities
In your lab group, you are investigating the properties of unknown types of matter. Your teacher gives you a "detective's kit
consisting of: vinegar (an acid), pH strips, and water. She asks you to design experiments to determine the chemical properties of the
unknowns. Select ALL of the experiments you might perform to observe chemical properties.
A)
measuring the pH
B)
measuring the mass
C)
measuring the density
D)
measuring the boiling point
E)
checking for reactivity with vinegar
Answer:
A: measuring the pH
E:checking for reactivity with vinegar
Explanation: I don't have one
The chemical property of the unknown substance can be measured by checking for reactivity with vinegar.
The chemical properties of a substance are those properties of a substance that we can observe by allowing the substance to be changed via a chemical reaction. In other words, chemical properties are observed by passing the substance through a chemical reaction.
Hence, the experiment that you will need to perform in order to determine the chemical properties of the unknown substance is checking for reactivity with vinegar.
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The moon is roughly one-sixth the size of the earth.
Which statement is true?
The gravitational pull of the moon is greater than the earth because it is larger than earth.
The gravitational pull of the moon is less than the earth because it is smaller.
There is no gravitational pull on the surface of the moon.
The gravitation pull of the moon is the same as the earth because they are both spheres.
Answer:
The gravitational pull of the moon is less than the earth because it is smaller.
Explanation:
Objects with more mass have a larger gravitational pull. Just like stars, which are many, many times more massive than planets, have a larger gravitational pull.
Cilia
Click through the images to
answer the questions.
4. Which type of microscope
produced the image of cilia?
5. What type of microscope
would be best for studying cilia
Answer:
Scanning electron microscope and electron microscope.
Explanation:
Scanning electron microscope is a type of microscope which can produced the image of cilia. Electron microscope is a type of microscope would be the best for studying cilia because it has higher magnification power i. e. 10,000,000x, which able us to study different parts of cilia so we can say that electron microscope is the right choice for studying cilia.
Comprehension Questions:
Available in 01:28
Photosynthesis and cellular
respiration are
cells.
that ocCur in
))
O chemical reactions
O physical reactions
Answer:
Chemical reactions
Explanation:
18. Viruses are considered
because they can not perform the characteristics of life without a
19. Viruses are made of two basic compounds,
and a
made of protein.
20. A virus infects a cell by injecting
into a cell.
Answer:
6. antibodies and DNA for the question no.6