If a paleontologist finds a plant fossil that shows evidence of a vascular structure, he can conclude that it was a land plant. Thus, the correct option is D.
Who is Paleontologist?A Paleontologist may be defined as a scientist who is a specialist in the study of past life forms that existed in previous geologic periods, as represented by their fossils. The science that deals with the life of past geologic periods as known from fossil remains are known as paleontology.
Sporophyte plants are non-vascular plants such as Mosses. The gametophytes have no vascular tissues at all. Ocean plants are rooted in the soil deep in the soil. They do not have vascular tissues.
Land plants such as banyan trees, mango trees, etc. have well-defined vascular structures for the transport of food and nutrients from the soil to the entire plants.
Therefore, if a paleontologist finds a plant fossil that shows evidence of a vascular structure, he can conclude that it was a land plant. Thus, the correct option is D.
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What are the responsibilities of the region of the brain highlighted below? (2 points)
Answer:
d
Explanation:
Because for balance and movement
Answer:
D
Explanation:
The brain stem is responsible for balance,etc.
Which part of an amino acid is the only one that varies and is what defines its properties? A. The amino group B. The R group C. The carboxylic acid group D. The nitrogen base
Which part of an amino acid is the only one that varies and is what defines its properties? A. The amino group B. The R group C. The carboxylic acid group D. The nitrogen base
How can the PCR process help in maintaining the identity of the killer
Answer:
to amplify the DNA (make millions / billions of copies) so that when we run it through a gel electrophoresis, the DNA shows up. The second way it can be used is to help actually find the sequence of the DNA. ANd so if DNA is left at the crime scene the DNA left can be made into multiple copies for further testing.
Explanation:
What is the approximate diameter of a capillary
Answer:
5 to 10 micrometres
Answer:
A capillary is a small blood vessel from 5 to 10 micrometres
Which of these elements is rarely found in organic molecules?
Answer:
phosphorus or sulphur
Explanation:
Organic compounds are molecules composed of carbon and hydrogen, and may contain any number of other elements. Many organic compounds contain nitrogen,oxygen, halogens, and more rarely phosphorus or sulphur.
What are the roles of carbohydrates in the body?
The roles of carbohydrates is to provide energy through glycolysis and structural support in the body.
Explanation:
Carbohydrates are classified into many types each having a different function in compare to other. These classes are:
Monosaccharides like glucose fructose etc., Disaccharides like sucrose, lactose etc., Polyols like sorbitol, erythritol etc., Oligosaccharides like fructo-oligosaccharides, Starch polysaccharides including amylose, amylopectin and malto-dextrins, and Non- starch polysaccharides like cellulose, pectin and hemicellulose etc.In plants cellulose is the major component of the cell walls and while glycogen stored in the animal muscles supports the proteins of the muscles. Carbohydrates like chitin make the exoskeleton of the insect.
What term is used to describe how well an organism functions in its
environment?
Answer:
Fitness
Explanation:
I got it correct
Which chamber of the heart connects to the lungs via the pulmonary artery? A. Right atrium B. Right ventricle C. Left ventricle D. Left a
Answer:
B. Right ventricle
Explanation:
The great vessels of the heart include the superior and inferior vena cava, which bring blood from the body to the right atrium, the pulmonary artery, which transports blood from the right ventricle to the lungs.
ANSWER:
The correct option is B: Right Ventricle. The right ventricle is connected to the heart via the "pulmonary artery".
EXPLANATION:
The "right ventricle pumps" blood at low pressure through the "pulmonary valve" into the pulmonary artery. The pulmonary artery then takes this blood to the lungs. This blood is de-oxygenated blood or blood that contains waste materials. The blood in the lungs picks up oxygen and is then transported back to the blood vessels to be carried to the various body parts.Which condition results when cells receive three copies of chromosome 21?
Down syndrome
cancer
diabetes
sickle cell disease
ANSWER ASAP
Answer:
Down Syndrome
Explanation:
It is caused by 3 copies of chromosome 21
Answer:
A. Down syndrome
Explanation:
Down syndrome Which is a medical condition caused by cells having an extra chromosome 21
Hope this helps
^^
how does a pluripotent cell differ from a totipotent cell?
Answer:
Cell potency is referred to as the ability of cells to give rise to give rise to different or number of cell types. More the potency of cell more well it could differentiate into different types of cells. Cell potency is of three basic types; multi-potent, totipotent, pluripotent.
Totipotent cells can be differentiated into any types of cells including embryonic and non-embryonic cells like placenta.
e.g. zygote
Pluripotent cells can differentiate to any type of cells but not the placenta cells.
e.g. embryonic stem cells
Which waste management process involves the burning of natural solid waste Answers for part 2: coal dust gas
Answer:
Incineration
Explanation:
The correct answer to the question is incineration. Incineration is a waste management process that involves the burning of waste at high temperatures to reduce its volume and mass. Natural solid waste such as wood, paper, and food scraps can all be incinerated.
Here's a breakdown of the other options:
Pyrolysis: This process involves heating waste in the absence of oxygen, which breaks down the organic material into charcoal, oil, and gas. It is not technically burning, as it happens without oxygen.
Gasification: Similar to pyrolysis, gasification also heats waste in the absence of oxygen, but at higher temperatures. This converts the waste into a synthetic gas called syngas, which can be used as a fuel.
Plasma gasification: This is a type of gasification that uses plasma torches to heat the waste to extremely high temperatures. This breaks down the waste into even smaller molecules, including hydrogen and carbon monoxide, which can be used to produce syngas or other fuels.
So, while all of these processes involve thermal treatment of waste, only incineration involves burning it in the presence of oxygen.
Tapeworm wich infects the body and is a living organism is an exapmle of what type of pathogen that causes illness
Answer: Parasite
Explanation:
Tapeworm which infects the human body is a living organism that enters the body of host and starts growing inside it. The infection by Tenia solium is caused by the larval cysts of tapeworm.
These larval cyst infects the brain, muscle and other tissues of the body. it occurs mostly by contaminated food and poor sanitation.
Eating uncooked pork can result in the infection caused by tapeworm.
PLEASE ANSWER FIRST GETS BRAINLIEST
Answer:
Nerves in parts of your spinal cord and brain “rewire” when they lose signals from the missing arm or leg. As a result, they send pain signals, a typical response when your body senses something is wrong
Which part of the seed is triploid (3n)?
embryo
endosperm
seed coat
Which of these is an advantage of wind energy?
What are the options for the problem
Answer:
It generates electricity.
Explanation:
what are some similarities between the structure of the DNA and the ladder
Answer:
DNA is often compared to a ladder becaause of its structure. The nucleotides form hydrogen bonds in a certain sequence, forming a "rung" of the ladder. The backbones of DNA are formed by alternating phosphates and sugar residues. Each nucleotide side attatches to 1 of the 2 backbones, creating a ladder shape.
1. Assume that white color is dominant over yellow color in squash. If pollen from the anthers of a
heterozygous white-fruited plant is placed on the pistil of a yellow-fruited plant, show, using ratios, the
genotypes and phenotypes you would expect the seeds from this cross to produce
Answer:
1 : 1
Explanation:
Assuming that the allele for white color is ‘W’ (Capital- W) and that for yellow color is ‘y’ (small-y), then the phenotypic and genotypic ratios of the f1 generation will be 50% : 50% which is 1: 1 as shown in the punnet square below:
Which of these is a disadvantage of hydropower?
O
A. It has a long power plant life span
O
B. It reduces groenhouse gas emissions.
O
C. It harms aquatic organisms.
O
D. It has high power-plant efficiency.
Answer:
C. It harms aquatic organisms
Explanation:
The hydropower is a one of the most commonly used in the world. It is based on the power of the water, and by building a dam on a river, the water is accumulated, and its power used for production of electrical energy. While this type of power has lot of advantages, like having long lifespan, being eco-friendly, and it has high efficiency, it also has some negatives about it. The biggest negative by the hydropower is that it causes harm tot he aquatic organisms. Because there is a dam built, the water becomes more stagnant, meaning that it becomes warmer, harming the organisms that are not able to adapt to it. The dam restricts the migration of the aquatic organisms, which is especially a big problem for the ones that migrate because of mating. The nutrients start to concentrate in front of the dam, while after the dam they are in very low quantity.
Final answer:
C. It harms aquatic organisms by changing river flows and aquatic ecosystems, leading to environmental issues such as loss of habitats and displacement of communities.
Explanation:
The disadvantage of hydropower identified in the given options is C. It harms aquatic organisms. While hydropower does not produce direct greenhouse gas emissions, it can have significant environmental impacts such as altering river flow, changing aquatic ecosystems, and impacting fish migration patterns. The construction of dams for hydroelectric power can lead to environmental problems like loss of habitat for tropical organisms, displacement of local communities, and the obstruction of species dispersal. Additionally, large areas of land can be flooded, which may result in the loss of forests and affect the livelihoods of indigenous populations with limited political influence to challenge these developments.
what are the differences between plants growing in different places
Do you think there are always clear solutions to environmental problems? Explain your response.
Answer: No
Explanation:
No, because environmental problems arise for different reasons. For example, if Zebras started dying off for different reasons, there would be no clear answer as to what to do.
The answer is no.
Environmental problems are complex and difficult to solve because there is no right or wrong way. This kind of problem is called a wicked problem when you need a theoretical basis. However, simply put, this means that the proposed solution does not solve the problem 100% and may have unexpected side effects. Because of this, we can only find the worst solution to get the most out of our capabilities. Environmental problems also intersect with each other, with social and economic problems.
What do you think is the solution to the environmental problem?Recycling (and Properly Recycling) Incorporating recycling practices into our daily lives reduces landfill waste, saves natural resources, saves habitats, reduces pollution, reduces energy use, and makes the world better. It's one of the most effective ways to make it environmentally friendly. heating.
Why is it so complicated to find a solution to an environmental problem, please explain your answer?Environmental problems can be complex and difficult to resolve. Complexity arises because the components of the environment are interconnected and their interactions can be separated in both time and distance.
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Help me with my question plzzzzzzzzzzz and thx
Answer: D
Explanation:
Since the chart shows no change with or without the mv, it can be assumed it had no influence on the plants.
Answer:
D. The average plant height cannot be affected by the amount of multivitamins
Explanation:
From the given chart it shows a horizontal straight line that runs straight from left to right indicating that the average height does not change with respect to the multivitamins level
Which breaks down dead organisms into simpler forms A.Fossil fuels B.Bacteria C. Algae D. Carbon Dioxide
What is the most likely risk when a society uses wind as an energy source? A. Risk from radioactive material
B. Risk of harm to flying animals
C. Risk of groundwater contamination
D. Risk of high greenhouse gas emissions
APEX
Answer:
D. Risk of harm to flying animals
Explanation:
The most likely risk when a society uses wind as an energy source is risk of harm to flying animals that is the option B as the wind turbines can pose a danger to birds and bats, particularly those that fly at night.
Wind turbines can have negative impacts on the environment and wildlife. While wind energy is generally considered to be a clean and renewable energy source but have potential risks and challenges. One of the main risks associated with wind turbines is their impact on flying animals, particularly birds and bats. Birds and bats can be at risk of colliding with wind turbines, particularly during migration or when flying at night.
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what do these, terms mean
Heya! Here ya go!
Climate Change: a change in worldwide or local atmosphere designs, specifically a change obvious from the mid to late twentieth century onwards and credited to a great extent to the expanded degrees of environmental carbon dioxide delivered by the utilization of petroleum derivatives.
Ocean acidification: the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere
Invasive Species: According to Executive Order 13112 an "obtrusive species" is characterized as an animal categories that seems to be: 1) non-local (or outsider) to the environment under thought and. 2) whose acquaintance causes or is likely to cause monetary or ecological damage or mischief to human wellbeing.
Increase In Human Population: In science or human geology, populace development is the expansion in the quantity of people in the populace.
Eutrophication: the improvement of a biological system (normally sea-going) with substance supplements (nitrates, phosphates, and so forth.)
The supplements can be presented through draining from soil by precipitation or discharged as a feature of sewage
Eutrophication is normal around horticultural terrains where the utilization of counterfeit manures are common
An expansion in supplement supply inside conduits will bring about a few biological results:
A fast development in algal populaces will happen (algal sprouts) because of the expanded accessibility of supplements
As the green growth kick the bucket, there will be a resulting spike in the quantities of saprotrophic microorganisms (decomposers)
The high rate of disintegration will bring about an expanded biochemical oxygen request (BOD) by saprotrophic microbes
The saprotrophs will expend accessible amounts of broke down oxygen, prompting deoxygenation of the water supply
Eutrophication will likewise expand the turbidity of the water, which will decrease oxygen generation by photosynthetic ocean growth
This will pressure the survival of marine life forms, possibly prompting a decrease in biodiversity inside the biological system
Deforestation: the activity of clearing a wide zone of trees.
Biodiversity: Biodiversity is under genuine danger because of human exercises. The primary risks worldwide are populace development and asset utilization, environmental change and an unnatural weather change, living space transformation and urbanization, intrusive outsider species, over-abuse of regular assets and natural debasement.
Overexploitation: likewise called overharvesting, alludes to reaping an inexhaustible asset to the point of unavoidable losses.
Why is facilitated diffusion necessary?
Answer:
to cross the plasma membrane.
Explanation:
Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.
What happens during telophase?
A. The chromatids are pulled apart.
B. The mitotic spindle forms.
C. A new nucleus forms around each copy of DNA.
D. Spindle fibers attach to the chromatids.
Answer:
C because this is the last phase of mitosis
During telophase a new nucleus forms around each copy of DNA. The correct option is C.
What is telophase?Telophase is the fifth and final stage of mitosis, when the duplicated genetic material carried in the nucleus of a parent cell is separated into two identical daughter cells.
Telophase commences when the replicated, paired chromosomes are separated and pulled to opposite sides of the cell, or poles.
In this phase, new nucleus forms around each copy of DNA.
Thus, the correct option is C.
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which step in the scientific method is next after making a prediction
Answer:
Conducting an experiment.
After making a prediction the next step in a scientific method is the conduction of the experiment.
Explanation:
Any experiment or a scientific hypothesis deals with predicting a solution for a particular problem and drafting a hypothesis for the problem. After the prediction is made it is ideal to perform the experiments and thereby visualize the results .
Only after performing the experiment we would know if our hypothesis for the drafted problem is successful or unsuccessful , otherwise a new hypothesis should be given to overcome the problem.
Which is the most likely cause of the observed variation?
Answer:
competition among individuals for available food sources
Explanation:
Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited.
-- Which is the most likely cause of the observed variation?
competition among individuals for available food sources
Competition among individuals for available food sources is most likely the cause of the observed variation.
What are the five food sources?As the MyPlate icon shows, the five food groups are Fruits, Vegetables, Grains, Protein Foods, and Dairy.
What is an example of a food source?The most obvious examples of the foods we source from plants are fruits and vegetables. All of the fruits and vegetables grow on plants. Another example of food from planted crops. These are rice, wheat, maize, millets, barley, etc.
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chrosomes are found insise the______ of a cell. They are ______ pairs of chromosomes in every human body cell. One of each pair of chromosomes come from each _____. Chromosomes are made up of long lenghts of_____.
Answer:
23 pairs nucleus parents and dna
i know that the 23 pairs is right and i also think that the rest is right to
Chromosomes are located inside the cell nucleus, with 23 pairs being present in every human body cell. One chromosome from every pair is inherited from each parent and they are composed of DNA.
Explanation:Chromosomes are found inside the nucleus of a cell. In terms of the number of pairs in a human body cell, there are 23 pairs of chromosomes. One chromosome from each pair is inherited from each parent. Chromosomes are made up of long lengths of DNA, which holds vital genetic information. Chromosomes are found inside the nucleus of a cell. They are pairs of chromosomes in every human body cell. One of each pair of chromosomes come from each parent. Chromosomes are made up of long lengths of DNA.
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if a scientist needs to use a large dataset to explore how corn grows in different soils, how would this data be classified?
a. descriptive
b. mixed methods
c. quantitative
d. qualitative
ANSWER:
The correct option is D: Qualitative. Qualitative methods help to classify data collected on the basis of qualities or qualitative properties that cannot be measured using numbers.
EXPLANATION:
The manner in which corn grows in different soils can be measured in a qualitative manner like the length of the corn crop, the quality of the corn as well as the thickness of the corn plants. This data cannot be measured in a numerical manner and so qualitative techniques are used to classify this data.Answer:
the answer is D
Explanation: