Answer:
DNA replication is called semiconservative because the two resulting DNA molecules each have one new DNA strand and one old strand from the original DNA molecule.
Explanation:
10
What complementary mRNA is made from the following DNA strand AAG-CTG-CCT *
(1 Point)
TTC-GẠC-GGA
UUC-GAC-GGA
TUC-GAC-GGA
UUC-GUC-GGA
No Answer
Answer:
a
Explanation:
Is the following sentence true or false? Topographic maps would be useful for
planning a new highway, Explain you answer
Help please I'll give brainless
How could humans use less nonrenewable resources?
Answer:
they could use other forms of energy, such as solar or wind.
Explanation:
1. When did stromatolites appear on Earth?
Archean
Hadean
Mesozoic
Proterozoic
Answer:
Proterozoic
Explanation:
Stromatolites appear on Earth in the end of Proterozoic era because Proterozoic extended from 2500 million years to 542 million years. The stromatolites were present on earth about 542 million years ago. The stromatolites present in large number on the sea shores around the world and are considered as the Earth's first visible life form which can be seen through naked eye. These stromatolites were the first known organisms in which photosynthesis occurs and produce free oxygen..
Answer:
Archean
Explanation:
I took the test
DON'T GIVE ME A LINK! ANSWER THE QUESTION!
A student wants to use cookies to make a model of the genetic makeup of the offspring of asexual reproduction. He has vanilla cookies and chocolate cookies available. How can he make his model?
A.
Put chocolate cookies in a row with arrows between them showing the progression from parent to offspring.
B.
Use one chocolate cookie parent with arrows showing that it produces vanilla cookies and chocolate cookies as offspring.
C.
Use chocolate cookies and vanilla cookies as the parents, and vanilla cookies and chocolate cookies as the offspring.
D.
Use chocolate cookies and vanilla cookies as parents, and combine half a vanilla cookie and half a chocolate cookie for the offspring.
(sorry if this sounds a little aggressive but I'm tired of people giving links to files that are dangerous for children, especially a site made up for children who knows how old. I don't want anything to happen to them that can traumatize them for the rest of their lives)
Answer: its D i hope
Explanation:
Students learned that the job of one body system is to filter out cellular
wastes, toxins, and excess water or nutrients. Which body system has
this function? *
A. Excretory system
B. Muscular system
C. Endocrine system
D. Skeletal system
HELP ME PLEASE ❤️
Answer:
A. Excretory system
hope it helps
Which adaptation would most likely help a plant collect more energy for photosynthesis? A. Broad leaves B. Short stems C. Deep roots D. Large flowers SCIENCE
Holes also allow more sunlight to get through to the leaves below, which maximizes sun absorption and photosynthesis. Adaptation: During the heat of the day's sunlight, most plants open stomata (pores) in their leaves to take in carbon dioxide from the air for photosynthesis, while allowing some water to escape.
hope that helps.
Where in the flower are pollen grains produced?
A. Sepals
B. Ovaries
C. Ovules
D. Stigmas
E. Anthers
Answer:
E. Anther
Explanation:
The main function of the anther of a flower is to produce the pollen of flowering plants. The pollen contained within the anther provides the sperm necessary for reproduction.
What is an ionic compound?
Answer:
Ionic compounds are ion compounds. These ions are atoms that gain or lose electrons, resulting in a net positive or negative charge. Metals tend to lose electrons, so they have a net positive charge and become cations. Non-metals tend to gain electrons, creating a net negative charge of anions.
Explanation:
Compare the two Food Web. Which ecosystem would be more likely to survive if a disease killed the grass?
a The forest ecosystem, because the animals would be able to eat other organisms.
b The grassland ecosystem, because it has many herbivores.
c he grass ecosystem, because several predators compete for food
d The forest ecosystem, because it has 3 top predators
Answer:
A
Explanation:
just A, I remember doing this in like 4th or 3rd grade don't really remember but I makes sense
Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.
Based on this passage, you can infer...
A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals
OMG PLSSS HELP ME PLS PLS PLS!!!!!!!
Answer:
Explanation: it’s a
mRNA
UGU UAU AUC GAA
Answer:
I can not see the picture?
Will give brainliest
Answer:
D
Explanation:
70 plus 30 = 100%
A short true-breeding plant will always produce a short plant.
True or false
Answer: false
Explanation:
Two interacting systems involved in plant transport are shown here. Which statement best describes the function of xylem and phloem in transporting substances throughout the plant?
Answer:
C. Xylem transport water and nutrients from the soil to the leaves while phloem transport carbohydrates from the leaves to the rest of the plant.
Explanation:
help!
look at photo to answer
4. While on the Galapagos Islands, Darwin observed variety in one type of
animal that was later used to help him form his theory of natural selection.
Which type of animal was this? *
Finches
Giant turtles
Lemurs
Bananas
Why might parasitic roots have developed in plants like the mistletoe?
Answer:Mistletoe is a parasite – it steals water and nutrients from trees. Technically, it is a “hemiparasite”, which means that it can generate some of its own resources through photosynthesis – it just needs that energetic kick from the sun to fuel the biological siege and subsequent invasion of the tree
Explanation:
Describe how radio telescopes are used to explore space.
Answer:
A radio telescope is a form of radio receiver used in astronomy. In contrast to an "ordinary" telescope, which receives visible light, a radio telescope sees radio waves emitted by radio sources, typically by means of a large parabolic (or a "dish") antenna, or arrays of them.
Explanation:
Which of the following best describes a relationship in this grassland?
A Badgers are top predators because they eat upland sandpipers and beetles.
B A producer-consumer relationship exists between lupines and ants.
C a predator-prey relationship exists between beetles and ground squirrels.
D upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
Answer:
D.
Explanation:
They consume both things that consume food and things that produce food.
The integumentary and muscular systems work together interactively for which
main purpose?
a) When a cat feels threatened the muscles under their skin contract to extend
the hairs on their backs and tails.
b)When a baboon is ready to mate it secretes a hormone which turns their
backside red.
c) When a giraffe fights over territory they swing their muscular necks and strike
each other with their bony ossicones.
d)Goldfish and other fish species are covered in scales to protect them from
pathogens and disease.
Answer: When a cat feels threatened the muscles under their skin contract to extend
the hairs on their backs and tails.
Explanation:
which of the following scientists can be identified as a taxonomist?
Answer: Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioral, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science.
What is the correct mRNA transcription of the following DNA sequence? ATGGCACCTTAC
Answer:
It is: UACCGUGGAAUG
What do you wonder about the inheritance of traits in complex organisms?
Answer:
l an a multicellular organism
Ability to capture smaller organism for food
Mutual Independence btw component cells
Increase in size, adaptation to environment
Please help what's the answer
(25) A farmer wants to improve the yield of tomatoes from his plants.
The farmer chooses the plants that produce the best yield of tomatoes to produce
the next generation of tomato plants.
This is repeated for several generations.
What is the name of this process?
A adaptation
B fertilization
C population growth
D selective breeding
Answer:
D is your answer
Explanation:
Which is used to make cell walls
Answer:

Figure 3 : Plant plasma membrane and cell-wall structure
A plant cell wall is arranged in layers and contains cellulose microfibrils, hemicellulose, pectin, lignin, and soluble protein. These components are organized into three major layers: the primary cell wall, the middle lamella, and the secondary cell wall (not pictured). The cell wall surrounds the plasma membrane and provides the cell tensile strength and protection.
© 2008 Nature Publishing Group Sticklen, M. B. Plant genetic engineering for biofuel production: towards affordable cellulosic ethanol. Nature Reviews Genetics 9, 433-443 (2008). All rights reserved. 
Figure Detail
Besides the presence of chloroplasts, another major difference between plant and animal cells is the presence of a cell wall. The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall. Plant cells have high concentrations of molecules dissolved in their cytoplasm, which causes water to come into the cell under normal conditions and makes the cell's central vacuole swell and press against the cell wall. With a healthy supply of water, turgor pressure keeps a plant from wilting. In drought, a plant may wilt, but its cell walls help maintain the structural integrity of its stems, leaves, and other structures, despite a shrinking, less turgid vacuole.
Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules. These fibers aggregate into bundles of about 40, which are called microfibrils. Microfibrils are embedded in a hydrated network of other polysaccharides. The cell wall is assembled in place. Precursor components are synthesized inside the cell and then assembled by enzymes associated with the cell membrane (Figure 3).
What Are Vacuoles?
Plant cells additionally possess large, fluid-filled vesicles called vacuoles within their cytoplasm. Vacuoles typically compose about 30 percent of a cell's volume, but they can fill as much as 90 percent of the intracellular space. Plant cells use vacuoles to adjust their size and turgor pressure. Vacuoles usually account for changes in cell size when the cytoplasmic volume stays constant.
Some vacuoles have specialized functions, and plant cells can have more than one type of vacuole. Vacuoles are related to lysosomes and share some functions with these structures; for instance, both contain degradative enzymes for breaking down macromolecules. Vacuoles can also serve as storage compartments for nutrients and metabolites. For instance, proteins are stored in the vacuoles of seeds, and rubber and opium are metabolites that are stored in plant vacuoles.
Conclusion
Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help reg
Four waves have different wavelengths and frequencies. Which statement is true
A- the wave with the greatest frequency will be the most powerful wave
B- all waves have to mechanical
C- the wave with the lowest frequency will be the most powerful wave
D- none of the above
Answer:B
Explanation:
Answer:
B- All waves have to mechanical
Explanation:
hope this helps! <3
PLEASE HELP ASFFF
What were the results of the experiment and how did the results prove the semiconservative model of DNA replication? Explain.
Answer:
it can be shows in DNA Test
In the summer, coastal towns usually experience cool ocean breezes, as shown in the
Which process creates the type of ocean breeze shown?