Answer:
Both are true; the second is part of the cell theory.
Answer:
false
Explanation:
Organelles make up the cell
What is a primary source
Answer: It's a document, or first-hand account. This source provides direct evidence to your object of study.
Explanation:
Answer:
A primary source is a source that is first hand accounted.
Explanation:
Good Luck and have a amazing day!ヽ(✿ﾟ▽ﾟ)ノ
True/False: Disease and Invasive Species are two causes of extinction.
Answer:
True
Explanation:
Answer:
True.
Explanation:
Which of these locations is most likely to experience moderate climate throughout the year?
Answer:
b
Explanation:
The location that is most likely to experience moderate climate throughout the year is C.
The location C of the map will experience moderate climate because it is a coastal region of the map.
Moderate climate weather is described as a weather condition that occurs during the day, as cool air from sea rush towards the land and during night, as cool air from the land rush towards sea.
Because location C is a coastal region which means that the location is surrounded by land which better absorbs and radiates heat much faster than sea.
Therefore, the location that is most likely to experience moderate climate throughout the year is C.
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What can scientists infer about the period of very early Earth from the fossilized remains of trees found under a lake?
Answer:There is a theory that terrestrial plants evolved from aquatic plants through a process of natural selection. Thus, by finding fossils of plants under the river, scientists may conclude that this theory is correct and that these fossils represent the ancestors of terrestrial plants.
The emergence of plants that survive on earth is a very important milestone for the planet, it is believed that these plants have evolved from green algae called Chlorophyta that have survived in marshy areas that had alternating periods of flooding and drought.Then the discovery of these fossils, through scientific experiments may conclude that the theory is correct
Explanation:
Answer:
The fossil record is the record of life on earth preserved in rock as fossils. The fossil record provides evidence of where types of plants and animals lived, how long they lived, how they died, and how they changed. It also tells us about Earth’s early environment and how it changed. The fossil record helps determine the age of rock formations by looking at how deep the fossils are buried in the rock. When a fossil is found above another fossil in a rock formation, the deeper fossil are considered older.
What can scientists infer about the period of very early Earth from the fossilized remains of trees found under a lake?
Explanation:
A) The fish ate the trees.X
B) The dinosaurs ate trees.X
C) The area was once a forest. ****************************** C
D) The atmosphere lacked oxygen.X
Which would a microscope be LEAST useful in studying?
A. spider
B. amoeba
C. bacterium
D. paramecium
Answer:
A
Explanation:
spiders can be seen with the naked eye
Answer:
A
Explanation:
A spider is large enough to see and observe without a microscope. Bacteria, amoeba and paramecium are all very tiny, and can’t be seen with just our eyes. To see these things, we would need a microscope. Therefore, a microscope would be the least useful when studying A: a spider.
what is the outer covering of a plant consist of?
Answer:
Dermal Tissue
Explanation:
The outer covering of a plant consist of dermal tissue, which is typically consists of a single layer of epidermal cells.
Do buffalo compete for food with other herbivores? If so, for what food and when?
Answer:
Sure grass. And there is a lot of grass. Compete with wild horses, wild pigs, wild goats, wild "golfer's who are way off the fairway. Wild deer are in the forests, wild goats in the hills so buffalo and horses manage the plains and the back nine. So much grass there was no competition...with the wild rabbits. Grass continues to grow. The buffalo move to greener pastures once they mowed down the other fields. When there were Millions of them, they were not starving.
Explanation: Got this from somewhere hoping it helps!
Answer:
Of the following processes in nature, which one involves only a physical change?
A.
An earthquake causes a rockslide.
B.
A chunk of iron ore rusts.
C.
A bird digests a worm.
D.
Photosynthesis occurs in a leaf.
Explanation:
This term takes into account both the actual emission of carbon by an act, but also the
carbon used to help create, transport, and dispose of any waste associated with that
act. What is this phrase?
Which can remove carbon dioxide from the atmosphere?
-plants and animals
-animals and glaciers
-oceans and glaciers
-oceans and plants
Answer:
oceans and plants
Explanation:
Which plant or plant part is a source of edible oils?
A.
wheat
B.
kidney beans
C.
sunflower
D.
rice
E.
cottonseed
Answer:
kidney beans is correct
Explanation:
Three gel cubes similar to those from the previous
screens have been placed in a colored solution that
seeps into the gel much like nutrients enter a cell.
Use the slider to see how the solution affected the
gel cubes after some period of time.
2. How does this model support the conclusion that
cells need to have a high amount of surface area
relative to their total volume?
Answer:
These gel cubes can be thought of as representing individual cells. As the cubes interact with their surroundings based on the amount of surface area and volume they have, the efficiency movement of substances in and out of cells depends on the two attributes as well. Greater surface area will mean more efficient rates of diffusion, which implies a smaller surface area to volume ratio is ideal for a biological cell.
Hope that answers the question, have a great day!
After some period the gel cubes will become Turgid
The higher the surface area the more efficient The diffusion rate
When The gel cubes are placed inside a colored solution the solution will start seeping into the gel cubes as the gel cubes continues to remain in the colored solution. Hence the gel cubes will become Turgid after some period of time.
The surface area to volume ratio plays a major role in the rate of diffusion of solvents inside the gel cubes ( cell ). Therefore the higher the surface area to volume ratio, the more efficient diffusion rate the cells would have.
Hence we can conclude that After some period the gel cubes will become Turgid The higher the surface area the more efficient The diffusion rate
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Although some data related to your question is missing a general answer is provided within the scope of your question
why do lichens and mosses get mostly replaced by larger plant species during succession
Answer:
Lichens that colonize bare rock secrete acids that break down the rock and start the soil-production process. Also, as lichens die, they provide some organic matter that also contributes to soil. Mosses can then colonize the thin soil; as mosses die, the soil thickens more allowing other hardy species to colonize
Explanation:
The membrane that lines the thoracic cavity walls is the
What is the effect of wildfires on biodiversity?
Answer:
it damages the earth's atmosphere and harm animals and the air we breath
Answer:
its a
Explanation:
well the answer makes sense because it might decrease some trees but it also gets rid of the bad and rotting trees so more vegetation can grow
The kingdom Protista contains the greatest variety of organisms, ranging from single-celled creatures to multicellular ones. Some people consider the kingdom Protista to be a
kingdom into which an organism is classified simply because it does not fit anywhere else. What is most likely to happen to this kingdom in the future?
A. This kingdom will likely be changed into a domain
B. This kingdom will likely be further divided into various new kingdoms.
C. This kingdom will disappear.
D. This kingdom will be merged with another one.
Answer:
b
Explanation:
2. Predict the oxygen level in a pond.
A The amount of oxygen dissolved in the water stays pretty even over a one year period.
B The water is too deep for plants to grow on the bottom, making it oxygen rich.
C Oxygen levels are high in the summer while the sun is shining and plants are
photosynthesizing, but they can drop in the winter.
D None of the above.
Answer:
C
Explanation:
oxygen levels are high in the summer while the sun is shining and plants are photosynthesizing but they can drop in the winter
Kate says she really wants to listen to your problem, but she is paying more attention
to her homework. This is an example of a mixed message.
True
False
Answer:
True. Lol.
Explanation:
So-called "dark matter" cannot be directly observed because
A it makes up less than one-tenth of the total mass of the universe
B it gives off no radiation
C it moves too quickly to be captured in space telescope images
Answer:
B. it gives off no radiation
Explanation:
Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.
Answer:
B
Explanation:
it gives off no radiation
True or False: Carbon can't get from the deep ocean to soils on the land. There
is a different type of carbon on land
Answer:
False it's the same type of carbon
Explanation:
hope this helps
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Charlotte placed raisins in a glass of water and after a while, saw them swell up and get larger. It made her wonder about the way water moved into different items. She knew cells allowed materials in, but she wanted to know more and she read that the cell membrane had specific jobs. Which of the following correctly describes the cell membrane’s function?
A. It is permeable, so it can allow all materials to move freely across the cell membrane.
B. It uses diffusion and osmosis to move all materials into and out of the cell.
C. It uses active transport and facilitated diffusion to move all materials into and out of the cell.
D. It is selectively permeable, so it can allow certain materials to pass through it and prevent others from passing into the cell.
Answer:
D. It is selectively permeable, so it can allow certain materials to pass through it and prevent others from passing into the cell.
Explanation:
A long fetch will produce low, slow waves. True False
Answer:
False?
Explanation:
A long fetch will produce Large waves.
how is mRNA processed
Answer:
Eukaryotic mRNA precursors are processed by 5′ capping, 3′ cleavage and polyadenylation, and RNA splicing to remove introns before being transported to the cytoplasm
Explanation:
The diagram shows a normal red blood cell and a shrunken red blood cell, both of which are in salt water.
In which direction did the water move to make the red blood cell shrink? Why did water move in that direction?
Answer:
The red blood cell shrank because water moved out of the cell, which happened because the concentration of salt outside the cell was greater than the concentration of salt inside the cell. Because the salt molecules take up space in the salt water, the concentration of water outside the cell was less than the concentration of water inside the cell. Therefore, water moved out of the cell from the area of high concentration to the area of low concentration, causing the cell to shrink.
Explanation: This was the sample response
Two short-tailed Manx cats are bred together. They produce 3 kittens with long tails 5 short tails and 2 without tails. From these results, how do you think tail length in these cats are inherited? Show the genotypes for both the parents and the offspring to support your answer.
Answer and Explanation:
There are three phenotypes, so it seems that this an example of incomplete dominance, with the short tail being the intermediate form between long-tail and no-tail. Incomplete dominance is a condition where neither of the alleles completely dominates over the other one. Dominant alleles cannot completely cover up the recessive alleles. Descendents possess an intermediate phenotype between the two parental phenotypes and not the dominant one, which would appear if this would be the case of complete dominance.
Available data:
Two short-tailed Manx cats are bred together. F1: 3 kittens with long tails, 5 short tails, and 2 without tails.The T gene might express the tail trait. T allele expresses long the tail and is dominant over t allele which expresses the absence of the tail.
So, homozygous dominant individuals, TT, are long-tailed animals
homozygous recessive individuals, tt, have no tail
Heterozygous individuals, Tt, are short-tailed animals, the intermediate form.
Cross: Two short-tailed Manx cats are bred together
Parental) Tt x Tt
Gametes) T t T t
Punnet Square) T t
T TT Tt
t Tt tt
F1) 1/4 TT = Long-tailed animals
2/4=1/2 Tt = Short-tailed animals
1/4 tt = untailed animals
The ratio 3:5:2 of the progeny in the example is close enough to the Mendelian ratio 1:2:1.
Answer:
This is a case of incomplete dominance. Consider the genotypes below:
LL - long tailed
Ll - short tailed
ll - no tail
The parent genotype is Ll. This means they have the ability to produce offspring with either of the 3 given phenotypes depending on the combination of alleles that get passed down. The cross would be the following way:
L l
L LL Ll
l Ll ll
There's a 25% chance of long-tail, 50% chance of short-tail and 25% chance of no-tail.
Hope that answers the question, have a great day!
What is sleep apnea? (2 points)
A. a condition in which an individual stops breathing while asleep, causing a measurable increase in blood oxygen levels
B. a condition in which an individual breathes more frequently while asleep, causing an increase in blood oxygen levels
C. a condition in which an individual stops breathing while asleep, causing a measurable decrease in blood oxygen levels
D. a condition in which an individual breathes more frequently while asleep, causing an decrease in blood oxygen levels
Answer:
C
Explanation:
Normal blood cells slide easily through narrow blood vessels. In sickle cell disease many red blood cells change to a crescent shape like a slender moon Crescent-shaped blood cells cause blockages in blood vessels These blockages decrease the transport of oxygen People with sickle cell disease often have sharp pains due to the lack of oxygen in parts of the body Some people have one sickle cell gene and one normal gene They have few defective cells and no symptoms because the sickle cell gene is recessive. How does the method of reproduction in humans result in people getting one copy of a sickle cell gene and one copy normal gene? Describe the process
Answer:
Explanation:
The method of reproduction in humans is sexual reproduction: a type of reproduction that occurs when new organisms are produced through the coming together of genetic information from two individuals of different sexes mostly a male and a female (egg cell and the sperm). The genetic information for making the blood cells; the red blood cells genes in particular exists on chromosomes in the nucleus of the sex cells (egg and sperm cell) also called the gametes. Basically, the DNA provides instructions for the production of mostly all of the body's needs.
The genes coding for the sickle cells which is the abnormal red cell is always inherited in the recessive form meaning both parent has to possess one copy each of the defective gene in their DNA. For humans to get one copy of a sickle cell gene and one copy normal gene; it means one of the parents gametes (be it male or female) contributed the defective chromosome and the other normal gene is contributed by the other parent during copulation giving rise to an individual that is heterozygous for the trait
For example, the sperm cell with the defective gene fertilizes the egg cell that has the normal copy of the gene producing an heterozgous individual.
A newborn child was brought to the hospital nursery before he was marked with his parents' names. The hospital workers must use what they know
about genetic outcomes to determine whom the child belongs to. They use his traits to help them. The baby has freckles (F dominant), and attached
earlobes (I recessive). They believe that the baby most likely belongs to a couple in which the man has attached earlobes but no freckles. It is known that
the woman is heterozygous for freckles and earlobe type.
Complete the Punnett square below to determine the probability that the child belongs to this couple. List the possible combinations of the father's
alleles across the top and the possible combinations of the mother's alleles down the left side. Then write your answer in the space below. Include a
brief statement explaining how you reached your answer.
Answer:
Explanation:Which of the following equations are balanced correctly?
2Ag2O → 4Ag + O2
Zn + HCl → ZnCl2 + H2
Cu + H2O → CuO + H2
2C4H10 + 13O2 → 8CO2 + 10H2O
What do tuberculosis, HIV, and malaria all have in common?
Group of answer choices
A. They all can be spread through body fluids, such as blood
B. They all respond to antibiotics.
C. They are all spread by parasites.
D. They are all non-transmissible diseases.
Answer:
"B.) They all respond to antibiotics." Is the correct answer.
Explanation:
Tuberculosis cannot be spread through blood, it is an airborne illness.
Malaria is spread through mosquitoes
They are all Transmissible diseases.
So, the only one that fits this question is B.
what are liquid fats called
Answer:
The answer is Lipids .
Explanation:
Lipids is a liquid form of fats.
Answer:
Oils
Explanation:
Liquid fats (often called oils), obtained mainly from plant or fish sources, have a high percentage of unsaturated fatty acids. Except Coconut Oil.
Hope it helps...
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Which descriptions refer to cirrus clouds? Select three options.
Answer:
wispy, high altitiudes, and ice crystals
Explanation:
Answer:
C
Explanation:
