Which of the options below describe the
walls of veins?
thick muscle layer & large elastic layer
thin smooth muscle & small elastic layer
only one cell thick

Since the given organisms prepare their own food, hence none of the organisms mentioned are heterotrophs. Thus, the correct answer is Option D.

Heterotrophs are organisms that depend on other species (plants and animals) for food since they are unable to prepare it for themselves. They are dependent on these producers for food, either directly or indirectly.  

The rose and the pine tree, two of the choices given, are both autotrophs since plants can make their own food through photosynthesis. On the other hand, the deep-sea tubeworm is a chemoautotroph, meaning it gets its energy from inorganic substances in its surroundings.

Therefore, the correct answer is Option D.

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Some form of early Homo is estimated to have evolved into Homo erectus around 1.7-2 million years ago, option B is correct.

Homo erectus is believed to have evolved around 1.7-2 million years ago based on fossil evidence and dating methods. Fossil discoveries, such as the famous Nariokotome Boy skeleton found in Kenya, provide crucial insights into the anatomy and characteristics of Homo erectus. These fossils, along with other archaeological and genetic evidence, suggest that Homo erectus was the first hominin species to exhibit significant anatomical and behavioral differences from earlier hominins.

The emergence of Homo erectus marked a significant milestone in human evolution, as this species had a larger brain size, more advanced tool-making abilities, and potentially even the ability to control fire. These developments laid the foundation for the subsequent evolution of Homo sapiens, option B is correct.

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The complete question is:

Some form of early Homo is estimated to have evolved into Homo erectus around:

A) 5-7.5 million years ago

B) 1.7-2 million years ago

C) 10,000-40,000 years ago

D) 50,000-70,000 years ago

The data about the country that would be most useful for the expert to analyse are population size, Birth rate and death rate and Age structure. That is option A, C and D respectively.

Population size is defined as the calculation of the number of individuals that are found in a particular geographical distribution.

This is an important tool when analysing a particular population.

The birth rate is defined as the number of births in every one thousand population while the death rate is the number of deaths in every one thousand population.

This parameter helps the expert to observe the effect of natural decrease or increase in the population under study.

Age structure: This structure shows the age composition of a particular population.

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Answer:

A homeboy I need the answer too H

Explanation:

Answer:

an aqueous solution of hydrogen chloride HCl that is a strong corrosive irritating acid, is normally present in dilute form in gastric juice, and is widely used in industry and in the laboratory.

Explanation:

The answer is Polysaccharide, hope this helped :)

It does not occur in the nucleus it occurs in the cytoplasm is False.

Transcription in prokaryotes (and in eukaryotes) calls for the DNA double helix to partially unwind in the location of mRNA synthesis. The region of unwinding is called a transcription bubble. The DNA sequence onto which the proteins and enzymes worried in transcription bind to initiate the method is known as a promoter.

In prokaryotes (organisms with out a nuclear membrane), DNA undergoes replication and transcription and RNA undergoes translation in an undivided compartment. All 3 methods can occur simultaneously.

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Answer:

The nuclear accumulation is the area found in the ventral

Answer:

yes

Explanation:

The consequences of genetic drift are numerous. It leads to random changes in allele frequencies. Drift causes fixation of alleles through the loss of alleles or genotypes. Drift can lead to the fixation or loss of entire genotypes in clonal (asexual) organisms

You would write Coniferous trees in G, while it's the only proper answer that makes sense.

What exactly is a conifer tree? While this appears to be a simple question, it has a complicated answer. Most of us have a hazy idea; it's like, a pine tree, right? Pines are conifers, but why? And what else is a conifer, and is it always a tree? Is it always green? Is everything always green?

Coniferous trees are evergreen cone-shaped trees with needle- or scale-like leaves. The majority of trees in these forest regions are cone-bearing gymnosperms, which means their seeds are bore exposed, with no outer enclosure, in the form of cones. Although not as rich as temperate forests and tropical rainforests, conifers have adapted well to thrive in the coniferous forests' unusual growing conditions.

What biome do Coniferous trees grow in? They usually grow in the northern boreal forest. The coniferous forest is surrounded by tundra to the north and deciduous forest to the south. The northern boreal forest is a type of coniferous forest found in latitudes ranging from 50° to 60° N.

I'M SO SORRY IF THIS IS WRONG!! I HAVE THE SAME QUESTION AND I'M TRYING TO ANSWER IT IN LESS THAN AN HOUR. EITHER WAY, I HOPE IT HELPS!! :D

Answer:

Hope this helps.....

Pls mark my ans as brainliest

If u mark my ans as brainliest u will get 3 extra points

Answer:

The answer is

Explanation:

Blue green algae is used in farming.

Answer:

An independent variable does not depend on any other variable for its value. A dependent variable depends on the other variables.

Explanation:

sorry, i added it as a comment and not a answer-

Example:

2y = 9x + 1

x is an independent variable

y is an dependent variable

Bacteria and decomposers play a crucial role in the food web as they break down dead organic matter and recycle nutrients back into the ecosystem. grasses will have no direct access to chemical components recycled from dead organisms.

Without them, the food web would not be able to function efficiently and effectively. If bacteria and fungi were not present, option A would be the best description of the consequences. Grasses would have no direct access to chemical components recycled from dead organisms, and this would result in a decrease in the growth and productivity of the grass. This could eventually impact the herbivores that depend on grass as a food source, leading to a decline in their population. Additionally, the absence of bacteria and decomposers would also result in an accumulation of dead matter and waste products, which would lead to an increase in pollution and decrease in the overall health of the ecosystem. Therefore, it is vital to understand the importance of bacteria and fungi in the food web and their significant role as decomposers.

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Answer:

D. Center of gravity.

Explanation:

Gravity always acts downward on every object on earth. Gravity multiplied by the object's mass produces a force called weight. Although the force of an object's weight acts downward on every particle of the object, it is usually considered to act as a single force through its balance point, or center of gravity.

Answer:

D. center of gravity​

Explanation:

In the common cold we can say that there is a localized inflammatory response as is focused on the airways, rarely gets to the bronchi or lungs, this happens when there are complications, even more, when complications occur, these are contained in the respiratory system.

Answer:

That's possible because proteins are encoded by "triplets" of nucleotides, each responsible for adding a particular amino acid to the protein chain. A change in one nucleotide, however, doesn't always change the triplet's meaning; the mutated triplet may still add the same amino acid.

That's possible because proteins are encoded by "triplets" of nucleotides, each responsible for adding a particular amino acid to the protein chain. A change in one nucleotide.

however, doesn't always change the triplet's meaning; the mutated triplet may still add the same amino acid., enabling the remainder of the protein to continue to function normally. If the area between the two mutations is not important for protein function, then the compensating effect is achievable. A genetic interaction, also known as epistasis, arises when two mutations produce a combined impact that is distinct from the sum of their separate effects. It is crucial to note, however, that this sort of interaction can be complicated and vary depending on the individual mutations and the circumstances in which they occur. Furthermore, compensating mutations are not always achievable, and the impact of mutations on protein function can be affected by a variety of parameters, including mutation site, kind, and quantity.

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Answer:

A

Explanation:

Because chemosynthesis is the biological conversion of one or more carbon-containing molecules and nutrients into organic matter using the oxidation of inorganic compounds or ferrous ions as a source of energy, rather than sunlight, as in photosynthesis.  So it can only be this because decomposition is something decaying and cellular respiration is the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Q1. Antiviral drugs may target the following except A. viral ribosomes.

Q2. The process used for identifying the Q3.different carbohydrates of streptococci is called A. Lancefield grouping.

Q4. The cause of strep throat is B. Streptococcus pyogenes-beta-hemolytic, group A.

Q5. Virulence factors used by S pyogenes may be

A. Protein F.

B. M Protein.

C. a capsule.

D. Protein G.

E. All of the choices are correct.

Protein F attaches to surface protein on epithelial cells called fibrin. M protein is an adhesin and inactivates opsonin C3b and avoids activating complement inflammatory response. Capsule mimics host cell hyaluronic acid and hides cell from phagocytes, Protein G is an Fc receptor that binds Fc part of opsonizing IgG.

Q6. The most common bacterial pathogen(s) involved with sinusitis, otitis media and conjunctivitis is/are E. H. influenzae AND S. pneumoniae

Pathogens are microorganisms that can cause infection in humans and animals. The types are also different from normal microorganisms that live in the human body, such as probiotics in the digestive tract or normal flora on the surface of the skin and vagina.

Even though they are classified as germs, this probiotic and normal flora do not cause disease, instead they protect the human body from various pathogens that trigger infection and disease.

Pathogens can attack the human body and cause disease when the immune system is weak. Apart from that, the entry of pathogens into the body can also come from wounds or injuries, consumption of contaminated food or drink, and close contact with people who are sick.

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A needlestick is an example of which portal of entry parenteral route.

The injection is the process of injecting fluids into the body using a needle. In medical practice, fluids that are often administered to the body by injection are drugs and vitamins. The needles used are hypodermic needlesticks.

The injection is known as a parenteral drug administration technique, namely administration through a route other than the gastrointestinal tract. Parenteral injections include subcutaneous, intramuscular, intravenous, intraperitoneal, intracardiac, intraarticular, and intracavernous injections.

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Answer:

liquid waste , solid waste,harzadious waste,recyclable rubbish and organic waste

Answer

(mitosis steps first)

Prophase II: Starting cells are the haploid cells made in meiosis I. Chromosomes condense.

Metaphase II: Chromosomes line up at the metaphase plate.

Anaphase II: Sister chromatids separate to opposite ends of the cell.

Telophase II: Newly forming gametes are haploid, and each chromosome now has just one chromatid.

The brain worm parasite is an example of interference competition. Interference competition occurs when two or more species compete with each other for the same resources or space. Option B .

In the case of the brain worm parasite, it is competing with other organisms for space and resources within the host animal's body. The parasite is able to survive and reproduce within the host, while other organisms may be unable to do so due to competition for resources.

Overall, interference competition is a type of competition in which species compete with each other for the same resources or space, and it can have significant impacts on the populations of both the competing and the affected species.  

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Full Question ;

the brain worm parasite is commonly found in white-tailed deer with little impact, but can be transmitted via intermediary hosts to moose with often fatal consequences. this is an example of

exploitative competition.

interference competition.

apparent competition.

allelopathic competition.

Answer:

starfish and sea urchins are related to sea lilies

Explanation:

Answer:

21.553125

Explanation:

You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85

:D

Answer:

During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls.

Answer:

By using photosynthesis

Explanation:

The metabolism of isoleucine, valine, and leucine produces the majority of the energy that proteins provide.

The metabolism of amino acids plays a crucial role in many biological processes that take place inside the human body.

Transamination, followed by deamination and decarboxylation, is a crucial process in the metabolism of amino acids. Amino acids can either be totally broken down or regrouped depending on the metabolic state.

Because amino acid metabolism plays a significant part in the abnormal energy metabolism of tumor cells, it is reprogrammed. Glutamine, the second crucial energy source of tumor cells, plays a key role in tumor-specific amino acid metabolic pathways and generates a lot of ATP for tumor growth .

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All of the statements are true about the impact of resistance training on muscle growth.

A single bout of resistance exercise training involving large muscle groups does increase blood levels of testosterone, insulin-like growth factor 1 (IGF-1), and growth hormone. The addition of myonuclei to growing muscle fibers appears to be essential for optimal fiber hypertrophy in response to resistance training. Initial hypertrophy of skeletal muscle fibers during the first few weeks of resistance training requires the addition of new myonuclei.

An increase in the number of myonuclei in growing fibers results in a fluctuating ratio between the number of myonuclei and the size of the fiber. These statements show that resistance training is a highly effective method for increasing muscle growth and strength, and that it is important to continue training consistently in order to see optimal results.

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Answer: increasing places to park biks

Explanation: hope this helps

Answer:

c

Explanation: