help pls it’s timedddd

Answer:

B

Explanation:

The larvae feeding on the hornworm harms it.

The statement is an example of parasitism is B. Wasps lay eggs inside hornworms and after the eggs hatch, the wasp larvae feed on the hornworm.

Here's a detailed explanation of parasitism:

Parasitism is a type of symbiotic relationship between two different organisms where one organism, the parasite, lives on or in the host organism, causing it some harm, and is adapted structurally to this way of life. The parasite benefits at the expense of the host.

In the example given (Option B), the wasps are the parasites. They lay their eggs inside hornworms. Once the eggs hatch, the larvae feed on the living hornworm, which eventually leads to the hornworm's death. This relationship benefits the wasp (providing nourishment and a place for its larvae to develop) while harming the hornworm, which is a classic example of parasitism.

Answer:

the first paragrapgh

Explanation:

hope this helps

Final answer:

Genetic engineering in agriculture can involve adding DNA from drought-resistant plants to crop plants, enhancing photosynthesis efficiency, and enabling nitrogen fixation in crops to produce more successful yields in hot, dry climates.

Explanation:

Genetic engineering could be used to produce a more successful crop in a hot, dry climate by adding DNA from plants that are naturally adapted to such conditions into the genomes of crop plants. This process, known as transformation, involves a targeted addition of foreign genes or transgenes into the genome of an organism, which can confer beneficial traits like drought resistance. The new genes could enable the modified crop to withstand extreme climate conditions more effectively, leading to improved crop yields and sustainable agriculture.

One promising application of genetic engineering in agriculture is the modification of photosynthesis efficiency. By using recombinant DNA techniques to double the efficiency of photosynthesis, a significant increase in food and biomass production could be achieved. Moreover, developing the capability for crops like corn, rice, wheat, and cotton to support nitrogen-fixing bacteria would drastically reduce the reliance on synthetic ammonia production, saving energy and natural resources.

neuron collection of neurons nervouse system and brain

Final answer:

The order from simplest to most complex is the neuron, collection of neurons, nervous system, and then the brain, with the brain being the most complex as it controls numerous vital functions and processes in the body.

Explanation:

If given the terms brain, nervous system, neuron, and a collection of neurons, the order from SIMPLEST TO MOST COMPLEX is as follows:

The neuron is the basic functional unit of the nervous system, each transmitting electrochemical signals. A collection of neurons forms complex networks that can communicate and process information but are less complex than the entire nervous system. The nervous system, comprising the central and peripheral nervous systems, orchestrates the activity of the entire body, making it more complex than just a group of neurons. Finally, the brain, as the command center of the nervous system, is the most complex due to its vast array of functions including consciousness, voluntary and involuntary movement control, and bodily functions.

Answer: the answer is the second to last one

Explanation:

The true statement about glycolysis is that it requires glucose as a reactant. Glycolysis is anaerobic and occurs in the cytoplasm, yielding two ATP molecules and not 36. It does not take place in the mitochondria nor require oxygen directly.

The true statement regarding glycolysis is that it requires glucose as a reactant. Glycolysis is a sequence of enzymatic reactions where glucose is converted into two molecules of pyruvate. This process is anaerobic, meaning it does not require oxygen, and it takes place in the cytoplasm of both prokaryotic and eukaryotic cells, not in the mitochondria. Therefore, statements B and C are incorrect. Statement D is also incorrect because glycolysis can occur whether oxygen is present or not, making it an anaerobic process. The net yield of glycolysis is two ATP molecules per molecule of glucose, rendering statement B incorrect.

During glycolysis, the reactants include glucose, ATP, ADP, NAD+, and inorganic phosphate. The products of glycolysis include a net gain of two ATP molecules, two NADH molecules, and two pyruvate molecules. Considering the other statements, glycolysis does produce pyruvate, but it is not directly entered into the citric acid cycle without further modification in eukaryotic cells. The first phase of glycolysis is endergonic, requiring the input of ATP, whereas the latter part of the pathway is exergonic, producing a net gain of ATP.

Answer:

Enzyme specificity or specific

Explanation:

Enzymes are highly specific to substrates as they have an active site which only allow certain substrates to bind to the active site. This is due to the shape of the active site and any other substrates cannot bind to the active site.

there is a model which is well known in the biology field of the lock and key model. this is because you have to have the correct key to insert it into the lock. this goes the same as an enzymes active site and the substrate.

Enzyme specificity refers to the fact that each enzyme can only bind to and interact with one specific substrate.

Enzymes are specialized proteins that catalyze specific chemical reactions in the body. Each enzyme has an active site that is uniquely shaped to accommodate a specific substrate, which is the molecule on which the enzyme acts. This specificity ensures that enzymes only bind to and interact with their specific substrates, allowing them to carry out their specific functions effectively.

Thus, Enzyme specificity refers to the ability of an enzyme to recognize and bind specifically to a particular substrate or type of molecule, catalyzing a specific chemical reaction while excluding others. This specificity is crucial for the proper functioning of biological processes.

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Answer:

C) When you are sick, your body temperature increases and you get a fever.

Explanation:

Answer:

Law of segregation is when two genes control the alleles and those two genes go to two different chromosomes. Law of independent assortment is when two genes control the alleles and are inherited independently.

Explanation:

Mendel’s laws in genetic terms, that is, in terms of chromosomes, genes, and alleles states that the genes activity along with the expressions that they express within the progeny.

It is defined as unit of inheritance that states that gene basically controls the expression of the character and pass on through chromosome.

Mendel's law of independent assortment states  that the chromosomes express themselves individually that the genes are expressed independently in the process of inheritance in the progeny.

Law of segregation says that the genes gets segregated before passing on to their progeny before expressing they assort independently and segregate as such in the progeny.

Mendel's law of segregation is the first division of meiosis in which the homologous chromosomes with their different versions of each gene are segregated into daughter nuclei.

Learn more about Mendel's laws at :

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The genotype of the offspring is likely heterozygous (Bb), with one black feather allele (B) and one white feather allele (W).

In genetics, the color of chicken feathers is often determined by multiple alleles at a single gene locus.

Let's use the letter "B" to represent the allele for black feathers and "W" for white feathers.

Since the chicken with black feathers is denoted as BB and the one with white feathers as WW, we can infer that black feathers (B) are dominant over white feathers (W).

When these two chickens are crossed, the resulting offspring will inherit one allele from each parent.

The genotype of the offspring will be BW, indicating that they carry both a black allele (B) from one parent and a white allele (W) from the other parent.

Despite having both alleles, the phenotype, or the observed trait, is black feathers, as the black allele is dominant.

In a more detailed explanation, the genotype of the offspring can be heterozygous (Bb), with one black allele and one white allele.

However, since black is the dominant trait, the presence of the black allele will determine the phenotype.

This type of genetic cross, involving a dominant and a recessive allele, results in a phenotypic expression that reflects the dominant allele's characteristics.

Answer:

C.  

The amount of heat changes, but the temperature does not change.

Explanation:

When a substance changes its state or phase of matter, the amount of heat changes, but the temperature does not change. For example, if water changes from solid ice to liquid water, it absorbs more heat energy, but its temperature remains at the freezing point/melting point of 0°C (32°F).

Answer:

D

Explanation:

Answer:

D}

Explanation:

Answer:

A. It is less expensive

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Answer:

yes

Explanation:

Answer:

The type of fossil can show what the terrain was like.

Explanation:

Fossils can give information about past environmental conditions by showing the type of animal they belonged to. If a scientist found a whale fossil in a desert, he/she could assume that the desert was once an ocean as whales only live in oceans. If someone found a fossil of a lizard that inhabited trees,  in the middle of the ocean, then he/she could assume that the ocean didn't exist at one point and instead, there might have been a forest in it's place.

Hope this helps!

Fossils inform us about past environmental conditions by providing evidence of ancient habitats and climates. Plant fossils can indicate previous warm and humid climates, while marine fossils suggest past sea levels and conditions. Fossil studies help reconstruct paleoenvironments, contributing to our understanding of Earth's history.

Fossils can provide a plethora of information about past environmental conditions. These preserved remains, such as bones, teeth, and impressions, serve as evidence of life that has long since vanished from our modern world. Through studying fossils, scientists can make inferences about ancient habitats, climates, and how organisms interacted with their surroundings.

Two examples that illustrate how fossils can reveal past environmental conditions are the study of plant fossils and marine fossils. Plant fossils, like those of ancient ferns, may indicate that a particular area was once a swamp or had a warm and humid environment. This is evidence of climate conditions in that area at the time the plant was alive. Another example is the study of marine fossils found in areas that are now deserts. Such discoveries suggest that the region was once underwater, revealing past sea levels and oceanic conditions. These fossils provide information on the temperature, salinity, and depth of the ancient seas, thereby informing us about the Earth's geological past.

Fossils give us the unique opportunity to reconstruct ancient ecosystems. Through them, paleoecologists may deduce paleoenvironmental conditions such as water depth, light availability, and energy level (calm vs. turbulent). For instance, the presence of oyster fossils can suggest that the area had the capability of supporting life that could withstand varying salinity levels, indicating that the water body experienced changes between fresh and saltwater influxes. This ability of reconstructing paleoenvironments is valuable not just for evolutionary biology but also for broader fields like geology and even climate science.

Answer:

Mutualism

Explanation:

1. Answer:

Both these leaves are quite similar because of their physical appearance. The sea teak leaf and weeping willow leaf are narrow and elongated. However, a weeping willow leaf has tapered edges.

The scientific names of sea teak and weeping willow plants are Podocarpus polystachyus and Salix babylonica.

2. Answer:

There many differences between sea teak leaf and weeping willow leaf.

Sea teak leaf is 3-10 cm long while weeping willow leaf is only 6 cm long.  

Sea teak leaves are bright green and shiny while weeping willow leaves are green at top and white at the bottom.

The bark of weeping willow can be used to obtain various medicines. Meanwhile, the leaves of sea teak plants are chewed to ease pain of joints.

Weeping willow trees are found in areas of China, South-West Asia and Europe.

Sea Teak trees are found in Indonesia, Malaysia etc.

Answer: mitochondrion, carboxylic group , acetyl group, acetyl group, acetyl CoA, NADH

Explanation:

Two pyruvate molecules remain at the end of glycolysis which still have a lot of extractable energy. The next step in storing the remaining energy in the form of ATP is oxidation by pyruvate. The transition steps are as following:

Hence the correct order to fill the blanks is  mitochondrion, carboxylic group , acetyl group, acetyl group, acetyl CoA, NADH.

Answer:

heterotrophs

Explanation:

Protozoans (animal-like) because they can gather food and heterotrophs

Answer:

a.) Gene= Wings

b.) Alleles= C,S

c.) Mother's Genotype= SS

d.) Genotype of her tooth fairy husband= CS

e.) Genotype of the other 2 children= CS

Explanation:

Complete question

In tooth fairies, curved wings are dominant over straight wings. If a homozygous recessive tooth fairy has 4 children, and half of them have straight wings

a.) Gene=

b.) Alleles=

c.) Mother's Genotype=

d.) Genotype of her tooth fairy husband=

e.) Genotype of the other 2 children=

Solution -

Here the allele being talked about is the wing type

Thus gene = wing

Let the allele for curved wings be represented by "C"

and the allele for straight wings be represented by "S"

Thus, allele are C and S

Genotype of mother -

Genotype of father is CS

and genotype of mother is SS

CS * SS

CS, CS, SS, SS

Only SS will have straight wings.

Genotype of her tooth fairy husband=  CS

Genotype of other two children - CS

The inheritance of curved vs. straight wings in tooth fairies follows Mendelian genetics, where a homozygous recessive parent and a heterozygous parent can produce offspring with a 1:1 ratio of the traits. This is analogous to fruit fly genetics studies, which also relate to human X-linked genetic traits, where heterozygous females pass on traits or carrier status to their children.

The question is asking about the inheritance of wing shape in tooth fairies, which involve basic genetics principles. In this scenario, a homozygous recessive tooth fairy produces offspring with a 1:1 ratio of curved to straight wings. Given that curved wings are dominant, the only way for half of the offspring to have straight wings is if the other parent is heterozygous, carrying one dominant and one recessive allele for wing shape. This is an example of Mendelian inheritance patterns, where each parent contributes one allele for a trait to their offspring. This pattern of inheritance is similar to discoveries made in fruit fly genetics which also apply to human genetics, particularly regarding X-linked traits.

For X-linked traits, similar principles apply. For instance, if a female parent is homozygous for a recessive X-linked trait, she will pass it on to 100 percent of her sons, as males only receive one X chromosome from their mother and a Y chromosome from their father. If a mother is heterozygous for an X-linked trait, she will pass on the trait to 50 percent of her male offspring and carrier status to 50 percent of her female offspring, since females have two X chromosomes.

Answer and Explanation:

Running or jogging comes under the category of aerobic training/exercise. By definition, aerobic exercise means that the person is training her/his body in the presence of excessive oxygen. So, metabolically speaking, the person is relying on availability of oxygen to carry out metabolism which is mainly about production/supply of energy (ATP) by the breakdown of food in the presence of oxygen. This process is also known as cellular respiration. So, if a person is doing aerobic exercise (running), s/he needs more energy to keep doing the exercise. Typically, aerobic exercise produce more energy (32 molecules of ATP) as compared to anaerobic process (2 molecules of ATP) per reaction run. Thus, In the process of aerobic exercise, the lungs will respire faster to allow more diffusion of oxygen in the blood. Then, this oxygen will be transported to all body by heart pumping and then oxygen enters the cells. Once oxygen is entered, it acts as terminal electron acceptor in a process known as oxidative phosphorylation. This process takes plance in the mitochondria and produces 32 molecules of ATP per reaction.

Answer:

Roots

Explanation:

Roots gather moisture from the ground for the plant

In plants, roots absorb water and minerals, while leaves perform photosynthesis to produce energy, functioning collectively as the plant equivalent to an animal's mouth.

Plant Structures and Energy Absorption

The structure in plants that most similarly serves the function of a mouth in animals would be roots combined with leaves. While animals ingest food and water through their mouths, plants absorb water and minerals through their roots and capture energy from sunlight using their leaves through the process of photosynthesis. Roots may not directly imbibe 'food' as animals do, but they absorb the necessary water and dissolved minerals from the soil. Leaves then utilize these substances along with sunlight to create energy-rich sugars that fuel the plant’s growth and functions.

Moreover, animals rely on the digestion of consumed organic matter for their energy, whereas plants can manufacture their own food by converting sunlight into chemical energy. This significant difference is key to understanding energy acquisition in the plant kingdom. The structures responsible for this, particularly the leaves, contain chloroplasts with chlorophyll that capture solar energy and convert it into sugars in a process known as photosynthesis. Therefore, roots and leaves together represent the plant equivalent of animal mouths when considering their roles in energy and nutrient uptake.

Answer:

D

Explanation:

There is more radiation in the US from bomb testing

Final answer:

The main reason for more cancer deaths in the U.S. compared to poor regions of Africa or Asia is the older population in the U.S. Higher life expectancy and lifestyle factors like smoking contribute to a higher incidence of cancer. So the correct option is c.

Explanation:

The correct answer to the question of why more cancer deaths occur in the U.S. as a percentage of the population than in poor regions of Africa or Asia is c. The population tends to be older in the U.S. This is because cancer is generally a disease associated with aging. The United States, along with other higher-income countries, has a relatively older population due to better overall healthcare and higher life expectancy. As a result, there are more people in the age group who are at a higher risk of developing cancer. Additionally, cancer patterns are influenced by cultural behaviors such as smoking and dietary practices, which are prevalent in the U.S., leading to a higher incidence of cancer-related deaths.

While pollution, a mixed population, and radiation could contribute to cancer rates, they are not the primary reasons for the higher percentage of cancer deaths in the U.S. When considering environmental factors, it's important to note that although poorer regions might face high levels of environmental pollution and related health risks, the younger demographic and issues like infectious diseases often overshadow the impact of cancer in those areas.

Answer:

beeswax

Explanation:

water is abiotic

temp is abiotic

rock are abiotic

and beeswax has to be biotic

The organism labelled 2 diverged first.

The correct answer is option b.

Explanation:

The arrows in the diagram indicates the timeline. The branching point shows the event of divergence in a species.

From the diagram the divergence or internal node is shown at point C.

At point C, 2 and 3 are the new species. C is the recent ancestor of the species 2 and 3.

The ancestors of organism 2 diverged first because the timeline is also short in case of species 2.

the C internode or recent ancestor diverged in to 2 different species 2 and 3.

Facilitated diffusion is a form of passive transport that involves the movement of molecules down their concentration gradient with the help of specific transport proteins.

Facilitated diffusion is a form of passive transport that allows large, polar, or charged molecules to cross the cell membrane with the help of specific transport proteins. Unlike simple diffusion, facilitated diffusion does not require energy and involves the movement of molecules down their concentration gradient. It is important to note that facilitated diffusion only refers to the movement of substances through membrane proteins and not the direct crossing of the phospholipid bilayer.

Answer:

B?

Explanation: