Eukaryotes evolved from prokaryote ancestors (the Endosymbiont Theory being a likely pathway). While eukaryotes share some traits with their prokaryote ancestor(s), some features are unique to eukaryotes. What are they?
a. circular double-stranded DNA in the nucleus.
b. ribosomes are used for protein synthesis.
c. membrane-bound organelles.
d. mitosis.
e. mitochondria.
f. photosynthesis.
g. motility.
i. histones associated with DNA.
Would we have the Same countries If Pangea existed? And would we look the same?explain please
Tyler is admitted to the hospital after an accident. In the hospital, Tyler overhears the doctor telling his mom that although he has a fracture in the axial skeleton, he’s lucky because the bone doesn’t protect any vital organ that’s essential for survival. Which bone has Tyler fractured?
Answer:
The correct answer is mandible
Mandible is a lower jaw bone that does not protect any organ in our body.
It is located in the facial region and is the strongest and largest bone of the mouth.
Mandible contains a region for the lower teeth and forms a temporomandibular joint.
The structure of mandible is comprised of two regions:
- The horizontal body (anteriorly)
- Two vertical rami (posteriorly)
Explanation:
What can likely happen to uncommon alleles in small, isolated populations as a result of genetic drift?
Explanation:
they are likely to be lost.
protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud. how can i say this different
Answer:
the nucleus in a small cloud
Explanation:
Describing the Big Bang Theory
Quick
Check
Which statement accurately describes the origin and expansion of the universe?
O As the universe continues to expand, it gradually gets warmer.
Galaxies that are farther away are moving away more slowly.
O Cosmic background radiation is leftover thermal energy from the big bang.
O Stars and galaxies formed almost immediately after the big bang occurred.
Answer:
QWERTY
Explanation:
Purple flowers are dominant over the white flowers. The parent generation includes two heterozygous parents. What are the possible phenotypes of these parent offspring
Answer:
Purple and white-flowered individuals.
Explanation:
First, let P represents the allele for purple flower trait and p for white flower trait. PP and Pp would be purple and pp would be white flower individuals.
The parents are two heterozygous individuals, Pp.
Pp x Pp
offspring: PP Pp Pp pp
PP and Pp = purple
pp = white.
Hence, the possible phenotypes of offspring from two heterozygous parents are purple and white-flowered individuals.
What elements make up a carbohydrate?
Explanation:
Hydrogen, Carbon, Oxygen,
How can Scientific beliefs be used incorrectly to fool people into thinking they are Scientifically founded
Answer:
Is really common that all the studies and scientific advances that we find today, born as an idea or hypothesis (that in a lot of cases is not the same as the end result).
So for example, suppose that a group of scientists is trying to find a cure to a certain disease, and they think that they may have found it, but there are not enough tests (for example they may try it in rats, but not in humans yet)
As the group starts to find results, they may share them (especially if they are positive), and here is when a given communicator/periodic takes this information and makes a claim like "Group of scientist finally finds the cure for...."
So in this case the media is using the fact that a group of scientists "thinks" something as a valid claim to affirm something.
There is also the case where a scientist says something (That has logic and scientific value only in context) and then the media uses some part of the scientist's statement out of context in order to affirm a given idea.
The N-terminal tail of histone H3 can be extensively modified, and depending on the number, location, and combination of these modifications, these changes may promote the formation of heterochromatin. What is the result of heterochromatin formation
Answer:
Repression of gene expression
Explanation:
Heterochromatin is formed by highly-packed DNA regions. A functional consequence of heterochromatin formation is that these regions become inaccessible to transcription factors, thereby inhibiting gene transcription (genes in these regions are 'switched off'). Heterochromatin is formed by epigenetic modifications added to histone tails that form nucleosomes, i.e., histones H2A, H2B, H3 and H4. The epigenetic marks include, among others, acetylation and methylation.
In Zambia, which lions are likely to have migrated from a different population?
what is the most precise measurement of the volume of this liquid
Answer:
pipets
Explanation:
volumetric flask and granulated cylinders
Which statement best describes a human influence on the biogeochemical cycles?
Answer:
increased eutrophication caused by high levels of nitrogen and phosphorous
Explanation:
Answer:
The movement of a chemical substance through both the biotic and abiotic parts of Earth
Explanation:
Which role of protists,fungi, and bacteria has the most positive effect on maintaining the plant population in an ecosystem?
O if they are found in the gut of animals, they can assist in digestion
They are a major food source for animals
They decompose dead materials, returning nutrients to the soil
They produce about 75 percent of the oxygen on Earth
Answer:
They decompose dead materials, returning nutrients to soil
Explanation:
You could say life on Earth depends on the protists because they supply us with oxygen, are critical organisms in food chains, and recycle important nutrients for other life forms to use.
How were you able to determine if something was living, once living, or never living (non-living)?
Answer:
If it was once living you would know by the fossils or where it was found. Stuff that is non-living is stuff like rocks and dirt. Living is trees and animals.
Explanation:
Jellyfish, mushrooms, oak trees, and bacteria contain cells. Which component of cell theory does this best illustrate? All living things are made of cells. Most organisms are made of cells. All cells come from other cells. Plants are made of cells.
Answer:
All living organisms are made of cells.
Explanation:
Hi!
No matter what is it, if it is a plant, an animal, a bacteria, anything! If it is alive, biotic, living, breathing, it is made up of cells. NO MATTER What! Rocks and sun are not alive so that means they are biotic. Which means they are not made of cells.
I really hope this helps!
Answer:
A all living things are made of cells!
Explanation:
how fungi get there food?
Answer:
hmmmmmmmmmmmnnmmmmmmmmmmm mmmmm
What is bile juice,is it physical or chemical
Explanation:
Hey there!!!
It is a chemical.
Biles are the yellowish substances which are produced by liver to help in digestion process.
Hope it helps...
Answer:
Bile is a digestive juice that is secreted by the liver and stored in the gallbladder. And it is chemical
Soo-Jung used the subtraction property of equality to solve an equation for y. Which equation could be the one that Soo-Jung solved? 4 y = 12 StartFraction y Over 4 EndFraction = 12 2 (4 y) = 12 y + 4 = 12
Explanation:
Option 1.
4y=12
Dividing 4 both sides
y=3
Division property should be used.
Option 2.
[tex]\dfrac{y}{4}=12[/tex]
Cross multiplying each other,
y=12(4)
y=48
Option 3.
2(4y)=12
Opening bracktet in LHS
8y=12
Dividing both sides by 8 i.e.
[tex]y=\dfrac{12}{8}\\\\y=\dfrac{3}{2}[/tex]
Division property is used.
Option 4.
y+4=12
Subtracting both sides by 4 i.e.
Y+4-4=12-4
y=8
Subtraction property is used.
It means that in option (4) Soo-Jung used the subtraction property of equality to solve an equation for y.
Answer:
D y + 4 = 12
Explanation:
I just took the quiz and got 100
The study of planets, the sun, comets, etc
Answer: the answer is astronomer
Explanation:
Answer:
Astronomy
Explanation:
Astronomy:
The study of planets, the sun, comets, universe and the whole celestial galaxies.
Hope this helps ;) ❤❤❤
The two days of the year when the Sun's rays are exactly on the equator are called _____.
Answer:
equinox
Explanation:
It occurs 2 times a year where the sun shines exactly on the equator on September and March
Why the bass and crayfish benefit from an increased level of phosphate, initially, but then die off
Answer:
Increased levels of phosphate are beneficial to phytoplankton and aquatic plants. In the short-run, this means increased micronutrients for herbivorous and omnivorous fish.
The phosphate, however, reacts with the water to reduce the oxygen levels obtainable in the water. Without oxygen, the fishes die off.
It is not unusual to find that with increased phosphate in water, healthy fishes begin to die off without any other plausible explanation.
The solution is to clean the water or treat it with solutions that impact positively whilst reducing the phosphate levels.
Cheers!
what is anyhrosphere (in your own words)?
Answer:
something that you invent?
Explanation:
Answer:
The anthroposphere encompasses
Explanation:
the total human presence throughout the Earth system including our culture, technology, built environment, and associated activities. ... In physical terms, the anthroposphere is comprised of the cities, villages, energy and transportation networks, farms, mines, and ports.
The process by which secretory products are packaged into vesicles and then released from the cells is known as
Answer:
Exocytosis.
Explanation:
It is Exocyctosis because Exocyctosis is a process where membrane bound secretory vessicles which can contain soluble proteins,membrane proteins, lipids are released from the cell into the extracellular environment.
The release is possible because the vessicles join to the plasma membrane of the cell.
These secretory vessicles are formed from trans Golgi network.
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these statements explains why the pigweed re-appeared?A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species. B) The herbicide company lost its triazine formula and started selling poor-quality triazine. C) Triazine-resistant pigweed has less efficient photosynthesis metabolism. D) Only triazine-resistant weeds survived and reproduced, so each year more pigweed was triazine-resistant.
Answer:
A) Natural selection caused the pigweed to mutate, creating a new triazine-resistant species.
Explanation:
Due to constant use of triazine, the weed will build resistance to it over time unlocking the herbicides codes and making it ineffective.
Natural selection will play out allowing this weeds to bring about a sudden change in their genome that will become resistance, this resistance breed is what will then be produced over time because mutation is heritable and the herbicide then becomes ineffective and the weed continues to multiply and increase in volume.
The table shows the energy that is stored in three types of organic molecules. Energy Storage in Humans A 4-column table with 3 rows. Column 1 is unlabeled with entries Free Glucose in Blood, Glycogen, Lipids (Fats). Column 2 is labeled K cal per Gram with entries 4, 4, 9. Column 3 is labeled Energy Storage (k cal) with entries 40, 600 to 1600, 10,000. Column 4 is labeled Life Support Time with entries Few minutes, 1 day, 30 to 40 days. What is the best conclusion based on this data? Blood is a primary location for energy storage. Fat molecules contain more energy-containing bonds than simple sugars. A gram of glycogen has twice as much energy as a gram of fat. The human body stores approximately 1,000 kcal of glucose.
Answer:
B or Fat molecules contain more energy-containing bonds than simple sugars.
Explanation:
The BEST conclusion based on this data is fat molecules contain more energy-containing bonds than simple sugar.
Both glucose and fats are macronutrients that store energy in their chemical bonds.Carbohydrates are polymers composed of monomers or 'sugar molecules' called monosaccharides. Glucose is a simple sugar (i.e., it is a monosaccharide).Lipids (fats) are polymers composed of fatty acids and glycerol.According to data, free glucose contains four (4) Kcal per gram; whereas lipids (fats) contain nine (9) Kcal per gram.In conclusion, the BEST conclusion based on this data is fat molecules contain more energy-containing bonds than simple sugar.
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do sponges have cells
Answer:
no, they dont
Explanation:
how would a sponge have cells? so no
Answer:
Yes?
Explanation:
Generally all living things have cells. They have no organs though.
Chromosomes that have their centromere near or at the center with two equal length arms are called ______.
Answer:
Metacentric centromere
Erythromycin is given to a six-year-old child before dental work to prevent endocarditis. The child weighs 44 lb (20 kg). The order is for 20 mg/kg by mouth two hours before the dental appointment. The bottle comes concentrated as 400 mg/5 ml. How many milliliters should the child receive? Record your answer using a whole number.
Answer:
5 milliliters
Explanation:
Weight of the child = 20 kg
Prescription order = 20 mg/kg 2 hours before appointment
The total amount of erythromycin required by the child= weight of the child x prescription order.
= 20 x 20 = 400 mg
Amount of erythromycin per 5 ml of the bottle = 400 mg
Hence, the total milliliters of the liquid that the child should receive = 5 ml
Two species of pine tree are very similar to each other. The pine trees are very different from a species of palm tree. Which statement best describes the characteristics of these trees?
Answer:
This question lacks options; the options are:
A). All of the tree species have the same number of characteristics in common.
B). The two species of pine trees have fewer characteristics in common than the pine trees and the palm trees.
C). The two species of pine trees have more characteristics in common than the pine trees and the palm trees.
D). None of the tree species have any characteristics in common
The correct answer is C.
Explanation:
Living organisms are of numerous and different species. In the order of classification of living organisms, species is the most exclusive and also represents the smallest. However, an organism can have different species on the basis of shared or common characteristics.
Two species are said to be similar if they share or have more characteristics in common. Likewise, different species have less characteristics in common. Hence, in the case of two pine tree species, which are very similar to each other but very different from a species of palm tree. This implies that the two pine tree species have more characteristics in common than they do with the palm tree species.
Answer:
c the two species of pine trees have more characteristics in common than the pine trees and the palm trees.
Explanation:
I I got it right on edge 2021