Answer:
Grain
Explanation:
The rice seed is often called grain.
What are the three categories of the 2nd line of defence in the immune system?
Answer:The immune system's three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.
Explanation:
which environmental changes occur fastest?
A. changing seasons
B. climate change
C. oil spill
D. pond succession
Answer:
The answer is B
Explanation:
Hope this helps!
How are water and minerals transported and used in vascular plants?
Choose all correct answers.
The phloem moves the food made in the shoots to all the other parts of the plant.
Vascular plants have leaves that absorb the water and minerals from the air.
The shoots are where the plant makes its food.
Hollow tubes called xylem carry the water and minerals up through the plant to the shoots.
Water and minerals are transported and used in vascular plants through :
A) Phloem moves the food made in the shoots to all the other parts of the plant D) Hollow tubes called xylem carry the water and minerals up through the plant to the shoots C) The shoots are where the plant makes its foodTransportation in Vascular plantsIn vascular plants the root hairs in the root take up water and minerals from the soil and this water and mineral is transported to the shoot and leaves of the plants through a tissue known as Xylem.
The phloem transports the food made by the plants which is in the form of organic nutrients such as amino acids.
Hence we can conclude that the correct options to your question are as listed above.
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In a controlled experiment, what is the experimental group compared to?
A. Control group
B. Source of error
C. Experimental group
D. Research question
Answer:
Your answer is A) Control group.
Explanation:
The control group and experimental group are compared against each other in an experiment. The independent variable is "controlled" or held constant in the control group. Hope this helped :)
How does the binding affinity of a transcription factor to DNA affect the efficiency of Protein Synthesis?
Answer:
The addition of transcription factor-binding sites could affect relative DNA replication efficiency in a number of ways. Each added site could produce an additive increase in replication efficiency, or one of the added sites could be responsible for all of the observed increase in RRE.
what is the function of epidermis
Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances. Prevents loss of moisture. Reduces harmful effects of UV radiation. Acts as a sensory organ (touch, detects temperature).
hope it helps...!!!
Answer:
the epidermis is the top layer of skin in your body it has functions in cluding protecting your body from the outside world kepping your skin hydrated producing new skin cells and determining your skin color hope this helps.:)
Explanation:
A duplicated homologous chromosome pair contains how many copies of genes ?
A.) 2
B.) 4
C.) 8
D.) 16
E.) 32
A duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.
How many copies of gene present in a chromosome?The two homologous copies of gene present in each chromosome so for the two chromosomes, four genes copies are present.
So we can conclude that a duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.
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energy is radiated by ?
Answer:
Electromagnet
Electromagnetic radiation is produced by charged particles accelerating through space.
Explanation:
Hope it helps
How does primary and secondary succession affect ecosystems? Give examples
Answer:
Explanation:
Primary succession makes an ecosystem virtually start all over. For example a nuclear explosion wipes out anything and everything in its path. This makes the exosystem start all over and rebuild itself. The secondary succession will only partially make the escosystem restart. For example a forest fire may wipe out some trees however there is still soil avalible for the ecosystem to grow back more easily
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Is zebra black with white stripes or white with black stripes?
Answer:
Zebras are black with white stripes.
Explanation:
hope this helps.
Answer:
white with black stripes
Explanation:
zebras are white and have black stripes, the other answer is saying that zebras are black with white stripes, which is made to throw you off.
How is the sun a special star?
Answer: "How is the sun a special star?"
Explanation: The sun is our largest energy source, It heats our planet and gives us seasons, It helps plants grow.
The moon is made of rocks and dirt
Sick, never knew that :O thanks
Grade 7 life science
Answer:
RNA leaves the nucleus during the process and DNA remains in the nucleus
Explanation:
DNA cannot leave the nucleus which is why RNA is made. A certain type of RNA, called mRNA (a.k.a. messenger RNA), leaves the nucleus to form proteins
Answer:DNA transforms from a nucleic acid into a protein, and RNA remains a nucleic acid
2. A cell with 100 chromosomes goes through meiosis. At the end, there are ____ daughter cells, each with ______ chromosomes.
During the process of meiosis, a cell with 100 chromosomes will produce 4 daughter cells, each with 50 chromosomes each the end.
What is Meiosis?Meiosis is a process in cell division and reproduction in which haploid cells are produced from diploid cells.
During meiosis, four daughter cells are produced from a single parent cell with each daughter cell having half the chromosome number of the patent cell.
Therefore, when a cell with 100 chromosomes goes through meiosis, at the end, there are will be 4 daughter cells, each with 50 chromosomes.
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In a pond environment there are bacteria (Monera), protozoa (Protista), water hyacinths (Plantae),
and minnows (Animalia). Which of these organisms could exist at the bottom of the pond food web?
Answer:
minnows which is in kingdom animalia
Explain why natural selection does not operate on characteristics which affect fitness but are not heritable.
Answer:
Natural selection can only work on heritable traits. Acquired traits are not heritable and are not subject to natural selection. Environmental factors are variable. A trait that is beneficial in one place or time may be detrimental in another place or time.
During practice, a soccer player kicks a ball and sends it rolling across the grass. Over a short distance, the ball slows down and stops.
Which two statements support the idea that energy is conserved in this example?
According to law of conservation of energy , statement B and D support the idea of energy being conserved.
What is law of conservation of energy?According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .The law is now called as the first law of thermodynamics.
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of energy is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.
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Which best completes the analogy?
Bronchioles : Trees :: Lungs :
The trachea is what best completes this analogy in the respiratory system of organisms.
What is an Analogy?This is used to depicts how two or things may be alike which is why trachea was chosen.
This is because it and the bronchioles make up the bronchial tree and they both distribute air to the lungs.
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choose all that apply
Some landforms you might see while traveling across the country could be
mountains
forests
hills
rivers
glaciers
Answer:
forests, hills, rivers, and maybe mountains.
Explanation:
I'm right you are wrong.
Define the word ubiquitous, and provide examples showing why this is an appropriate term to use when describing microbes.
Answer:
Ubiquitous refers to any living being or the nonliving thing that is present everywhere. Microbes such as bacteria are ubiquitous
Explanation:
.
What is environmental justice?
Answer:
Environmental Justice is the fair treatment and meaningful involvement of all people regardless of race, color, and national origin.
I would appreciate it if you gave a thank you or a brainliest!!
Thanks for asking the question!!
Based on the phylogenetic chart, which three statements are true about the relationship between organisms?
Answer:A phylogenetic tree is a branching diagram showing evolutionary relationships among various living organisms based upon similarities and differences in their physical or genetic characteristics like the one above. In this case a human is more closely related to a mouse than a kangaroo, A platypus is more closely related to a kangaroo than a mouse, a human and a kangaroo share common features because of a common ancestor.
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I need help with this question
Answer:
Nebraska
Explanation:
"According to the 2019 Cattle Inventory, Nebraska’s 6.8 million head of cattle ranks as the second-highest in the US. With a population of about 1.8 million people, cattle greatly outnumber people in the state. Although Nebraska has recorded minimal growth in its cattle inventory, it remains one of the most important states in terms of cattle production. Agriculture is the biggest industry in Nebraska, and cattle production represents the largest segment of the agriculture industry. The state has approximately 23 million acres of pastureland and rangeland, half of which is located in the Sandhills."
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50 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
EXPERIMENT WATER PROPERTIES
What observations were you able to make after 24 hours? 48 hours?
Answer:
If your leave the water out for about 24 hours the water will have many different kinds of bacterias. Same with the 48 hours, but there is more bacteria in it.
Explanation:
A shoulder joint with tissue between the bones highlighted.
What is the flexible connective tissue shown in blue?
tendon
bone
cartilage
muscle
Answer:
I can confirm that c aka cartilage is the right answer if it is right pls like ty
Explanation:
which structures contain endolymph
What factor is described as movement into or out of a population? A. non-random mating B. migration C. small populations D. natural selection
The movement into or out of a population is known as migration.
What is migration?Often, individuals in a population have new individuals that join the population or leave the population. In fact some species have seasons of the year in which they move from one location to another.
The movement into or out of a population as described above is otherwise known as migration.
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what is the current research saying about evolution?
Answer:
The theory of evolution is based on the idea that all species are related and gradually change over time. Evolution relies on there being genetic variation in a population which affects the physical characteristics (phenotype) of an organism.
Outline the biochemical pathways which enables cells to produce energy using glucose and oxygen
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.
What is respiration?Respiration is the process in which cells use oxygen to break down sugar in order to obtain energy. Glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation are the stages of cellular respiration.
So we can conclude that Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.
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Use the data and what you have learned about evolution to explain how mutation is a random process, but natural selection is not random.
The data are not found here, but evolution means 'descendence with modification', which may occur due to natural selection and mutations.
What is evolution?Evolution is descendence with modification, which generally is caused by a process called natural selection.
Natural selection 'selects' the most adaptive variants in the population, which occurs due to the emergence of mutations.
A mutation is any genetic change in the nucleotide sequence of the genome of an individual.
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