Which of the following can be multicellular?
A. eukaryotes
B. prokaryotes
Answer:
A Eukaryotes
Explanation:
thus would include plants, and animals
What does the nucleosome
do?
Answer:
Condenses DNA
Explanation:
A nucleosome is a section of DNA that is wrapped around a core of proteins. Inside the nucleus, DNA forms a complex with proteins called chromatin, which allows the DNA to be condensed into a smaller volume.
The two sides of the heart can be described as
A. Symmetrical- the left is just like the right
B. Asymmetrical- the right ventricle is thicker than the left
C. Asymmetrical- the left ventricle is thicker than the right
D. Variable- it is different in different animals
Answer:
The answer is C. Asymmetrical- the left ventricle is thicker than the right
Explanation:
The left ventricle has to pump the blood further around the body, and against higher pressure, compared with the right ventricle.
A mutation in a gene results in an animal that cannot make a protein that allows muscles to contract which of these is most likely to happen
Answer:
it will get weaker give water
Explanation:
feed it bread
A heritable change in a person's genetic makeup is referred to as a mutation. Changes can be substantial or negligible. Chromosomes or chromosome parts may be lost, added, duplicated, or rearranged in significant alterations. Thus, option B is correct.
What mutation in a gene results in an animal?High-energy sources like radiation or chemicals in the environment can both result in mutations. They may also emerge on their own during DNA replication. The two main kinds of mutations are chromosomal abnormalities and point mutations.
Mutations can alter an organism's phenotype, which is its outward appearance, or they can have an impact on the way DNA encodes the genetic information (genotype). When mutations happen, they might kill an organism completely or only partially.
The likelihood that a gene mutation will cause an animal to be unable to produce the protein necessary for muscles to contract is that the animal will perish before producing any progeny.
Therefore, The animal will die before having any offspring.
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The above given question is incomplete. The complete question is given below:
A mutation in a gene results in an animal that cannot make a protein that allows muscles to contract. Which of these is most likely to happen? * A. The gene will eventually be found in all animals of the species. B. The animal will die before having any offspring. C. The gene will change back to the normal form. D. The animal will pass this gene on to many offspring.
3 ways in which our atmosphere is not like a greenhouse
( HELP ME PLEASE)!!!!
Answer:
1.) The atmosphere is an open system, with heat energy always escaping to space. Unlike the glass it absorbs 95% of the UV in the creation of ozone. This sounds insignificant, but one scientist argues variation in the 5 percent is the cause of warming.
2.) There are no winds in a greenhouse. In the greenhouse and in the atmosphere energy is partly transferred from the heated surfaces through collision between air molecules (conduction). However, in the atmosphere a large portion of that heat is transported vertically by rising air currents (convection), and also horizontally by advection or commonly wind. There are no winds in a greenhouse.
3.) Heat reduction in a greenhouse requires a physical change with a vent to let LW escape or a screen to block SW entering. Clouds are nature’s screen. However, they can block SW and LW, such that we have little idea how clouds work to modify temperatures
Explanation:
The basic idea of a greenhouse is that sunlight or shortwave (SW) energy passes through the glass and heats surfaces. The surfaces radiate that heat as longwave (LW) energy or sensible heat (heat you can feel). LW cannot pass through the glass, so is trapped and raises the temperature in the greenhouse; the glass acts like a one-way valve. A greenhouse is a closed system because the heat cannot escape unless artificially changed by opening vents or blocking sunlight. The glass supposedly represents the entire atmosphere. It also blocks 100 percent of the ultraviolet (UV) portion of the sunlight.
A new factory is being built upstream from an estuary that has a large population of fish and turtles. A dam will be built across the river and a large lake will form behind it. What effect will the dam have on the organisms living in the estuary
Answer:
Adversely affected.
Explanation:
Dam adversely affected the organisms living in the estuary because dam controls the flow of water of estuary. Dams divide rivers that formed upstream and downstream habitats. The migratory fish depends on the natural environment and flow of river. Due to dams, change occur in rivers flow, the water temperature and natural conditions. This change prevents migratory fish from mating and/or hinders the development of fish larval.
What is speciation? What are the causes of speciation? How does isolation lead to speciation?NO LINKS PLEASE
The biological species concept tells us that organisms belong to the same species if they can breed to produce fertile and viable offspring. Speciation is therefore the development of reproductive isolation between individuals of an original population.
This can occur in 2 different ways:
1. Allopatric speciation. This is when speciation occurs due to some sort of geographic barrier separates a population into 2 groups. These two groups can then undergo genetic divergence, where each group grows increasingly dissimilar genetically due to random mutations and natural selection acting separately in each group, or from processes such as genetic drift. It is important to recognize that the lack of gene flow between these two groups contributes to the genetic divergence of the groups. Genetic divergence can lead to prezygotic and post-zygotic barriers which prevent production of fertile/viable offspring between the 2 groups. Each of these populations now represents a new species, whose gene pools are completely separate from one another.
2. Sympatric speciation. This is when speciation occurs without the presence of any sort of physical/geographical barriers. Truthfully, this is a much less common occurence. However, it is thought that sympatric speciation can occur as a result of strong divergent selection. Sympatric speciation may also occur as a result of a polyploid individual being introduced into a diploid population.
Isolation leads to speciation by preventing gene flow between 2 groups of an original population, allowing genetic differences between the groups to accumulate over time (via natural selection, genetic drift, etc.). Over time, the accumulation of these genetic differences may result in reproductive isolation between the 2 groups, causing these two groups to be committed to separate evolutionary paths.
Answer: So, how might speciation happen?
Explanation:
Speciation describes a situation where a population in a species becomes so different that it can no longer successfully interbreed with other populations of the ‘same’ species.
carol has an unknown element in group 7. Using the periodic table, how many valence electrons does her element have?
A.) Five
B.) Seven
C.) Nine
D.) Seventeen
Answer: seven
Explanation: the valence electrons are the numi of electrons found in the outermost shell of an element. The group of an element indicates it's number of electrons in the outermost shell while the number of shells occupied by electrons indicates the period.
Thus since the element is in group seven it has seven valence electrons.
14. In one to two sentences, what are some ways to mitigate climate change?
altruistic behavior
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
Give five example molecules
These are the five examples for the molecules with the clear definition.
Give two differences between the structure of bacterial cells and the structure of plant cells.
Answer:
The plant cell is a eukaryotic cell whereas a bacterial cell is a prokaryotic cell. ... Bacterial cells lack membrane-bound organelles, and their genome is arranged into the nucleoid. The main difference between plant cell and bacterial cell is their structure and function
Which location would make the most sense for a geothermal electricity plant?
a. Along a wide and powerful river flowing through Colorado.
b. In a hot and dry area like Arizona.
c. In a volcanically active area like Washington state.
Answer:
C. In a volcanically active area like Washington state.Explanation:
Brainliest please!
What does aerobic respiration require?
Answer:
Aerobic respiration requires oxygen.
Select the correct answer.
Which item is made from a synthetic material?
a. cotton pants
b. leather jacket
c. frying pan
d. wicker basket
Answer:
B is the wrong answer the other guy is wrong
Explanation:
i did the test just now and it was wrong
Where do hurricanes most always start?
a) over tropical oceans
b) over tropical land
c) over attic oceans
three effects of constipation
1. Infections
If you end up being constipated, you are probably having trouble passing a stool. If the stool has become dry and hard from lack of moisture, it could make having a bowel movement painful. When the rectum is stretched out to accommodate the painful stool, the rectum could stay open resulting in rectal prolapse. This could lead to an infection.
2. Bad breath
One unusual side effect is bad breath. You may wonder how a condition that is occurring at one end of your body could affect the complete opposite end of your body, but it can. What happens is the gasses and toxic waste that are building up because you are constipated rises up and as it goes throughout the body and it usually ends up in your mouth.
3. Lowered ratio of healthy bacteria
Healthy bacteria in your body is called flora. The purpose of flora is to help with the production of vitamins and helps with your immune system. When you are constipated the amount of flora in your intestine is reduced putting you at risk for illness and infection.
Extra Options
4. Colon cancer
The colon is meant to store a couple of pounds of stools. If you become constipated, there is a buildup of stools and puts the colon at risk for ripping. When the colon becomes strained because it is overloaded, it strains the inner membrane. Ruptures and possible infections occur and it could lead to colon cancer.
5. Increased toxins
Your skin will show on the outside what your body is going through on the inside. If you become constipated, you will suffer an excess of toxins in your body. The skin, your largest organ, has to work overtime to get rid of these toxins. If your skin looks less than glowing you need to address the issues that are going on inside of your body before you start looking for a new facial cream.
From- naturalon.com
distinguish between plant and animal cell
Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not
Explanation:
hope this helps
Why is cloning embryonic stem cells a “holy grail” for scientists?
A-It will allow scientists to clone people.
B-It can help scientists understand diseases.
C-It will allow scientists to raise the specter of controversy
D-It will allow scientists to make personalized medicine.
Answer:
The answer is D) It will allow scientists to make personalized medicine.
Explanation:
I used the context of the article where they stated "So for years, scientists have been trying to use cloning techniques to make embryonic stem cells that are essentially a genetic match for patients. The idea is that such a close match would prevent their bodies from rejecting the cells."
Cloning embryonic stem cells is a “holy grail” for scientists because it will allow scientists to make personalized medicine.
What is Cloning?
This is the process which involves making exact genetic copies of a living organism.
Cloning embryonic cells will ensure that scientists are able to make personalized medicine as we have unique genetic makeup thereby making option D the most appropriate choice.
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Which statement best compares consumers and decomposers?
Both get their energy by feeding on other organisms.
Both get their energy by photosynthesizing.
Consumers feed on other organisms, and decomposers make their own food.
Consumers make their own food, and decomposers feed on other organisms.
Answer:
firstly,consumers and decomposers donot get energy by photosynthesis
Explanation:And the gist difference between them is that comsumers consume their food without decaying them but decomposers consume their prey only after decomposing them
Answer:
C
Explanation:
how do turtles interact with the abiotic factors in their environment?
Answer:
An abiotic factor that affects sea turtles is hurricanes, hurricanes affect sea turtle's nests placed on the beach, they get destroyed by hurricanes if not moved into a secure place.
Explanation:
Turtles remarkably interact with abiotic factors like water, air present in the sea, and various abnormal circumstances like floods and hurricanes.
What are Abiotic factors?Abiotic factors may be defined as those factors that significantly deal with the non-living part of an ecosystem that shapes its environment.
It includes climatic factors like temperature, light, rain, fire, winds, etc., topographic factors like mountains, hills, plains, deserts, etc., and edaphic factors like characteristics of the soil. Both biotic factors and abiotic factors are influential for the survival of living organisms.
Turtles are positively influenced by water. The nesting of turtles assists beaches by depositing their eggs in the sand. They typically get nutrients from beach grasses that help to prevent coastal erosion. The place which best suited their adaptation is excessive water present.
Therefore, abiotic factors like an aquatic ecosystem, water, winds, certain abnormal situations, etc. through which turtles interact.
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In what kind of star system does one star sometimes block the light from another?
1. Open Cluster
2. Globular cluster
3. quasar cluster
4. eclipsing binary
3. Label the parts of the digestive system on the image below by typing in the organ name next to the corresponding letter.
Answer:
A. Salivary Gland (I believe)
B. Esophagus
C. Liver
D. Stomach
E. Pancreas
F. Small intestine
G. Large Intestine
What codes for RNA
plz help
Answer: DNA
Explanation:
7. How can you exempt yourself
from collaborating in a lie?
Explain you think this means
Answer:
When you combine the science of recognizing deception with the art of looking, listening, you exempt yourself from collaborating in a lie.
Describe how roots grow in length.
Answer:
water sun light yum
Explanation:
ACE OR EXPERT HELP PLS: Words are very similar to genes in that they use bases instead of letters to create genetic expression. If a mutation in letters makes a new word meaning, what would a mutation in bases create?
Answer:
A mutation could create a difference in the sequence of the codons which could potentially create a different outcome in amino acids. Letters create words and bases create codes for amino acids. If a letter changes in a word than the meaning of the word may change, correspondingly if a base changes ( or a mutation occurs ) in a nucleotide the outcome of the amino acid may change.
Explanation:
Which type of selection would be caused by this bird species ?
Answer:
Directional Selection
Explanation:
16.
What term collectively describes the following substances: thickeners, colourings, flavourings and
dyes?
Food additive is term that collectively describes thickeners, colourings, flavourings and dyes.
What are food additives?"Food additives are substances added to food to preserve flavour or enhance taste, appearance, or other sensory qualities."Sugar, salt, vinegar, etc. helps in preservation of food.What are thickeners?"Thickeners are substances which increases viscosity of liquid. Examples: corn-starch, wheat flour, etc."Hence, the term collectively describing the substances: thickeners, colourings, flavourings and dyes is known as food additive.
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Based on the living things in the pyramid, please tell me what examples would fit into these categories:
Primary Producers, primary consumers, secondary consumers, and tertiary consumers.
Answer:
Primary producer = Oak tree leaves
Primary consumer = Caterpillars
Secondary consumer = Blue j a y s
Tertiary consumers = Hawk
Explanation:
An energy pyramid is a graph which shows how energy is transferred or flows from one trophic level to the next. Organisms which occupy the same level in the food chain within an ecosystem belong to the same trophic level.
The shape of an an energy pyramid is a pyramid indicating that the number of living things as well as the amount of energy flow decreases as one goes from one lower trophic level to the next higher level.
At the base of the pyramid are the primary producers which use energy of the sunlight to manufacture their own food. Example is the Oak tree.
The next higher level is the primary consumers who feed directly on the primary producers. For example caterpillars.
The next higher level is the secondary consumers who feed on the primary consumers. For example the Blue j a y s.
The highest levelin the pyramid is the tertiary consumers who feed on the secondary consumers. For example, the hawk.
Which statement best describes the composition of genetic material?
A. Genes and chromosomes are made of DNA
B. Genes and chromosomes are made of RNA
C. Genes are composed of DNA; chromosomes are composed of RNA
D. Genes are composed of RNA; chromosomes are composed of DNA
71/6 is the answer tho. Or 11.8333... or 11 and 5/6 (I said this first!!)
Btw, the answer is B
Brainliest?? ;D