Sam ran a 2000-meter race. He started at 9:00 AM and finished at 9:05 Am. He started out fast but slowed down toward the end. Caculate sams average speed during the race.

Answer:

lymph nodes is the answer

Raising livestock requires land. For land to be present, trees must be cut down to clear space for the livestock; thus, effectively reducing carbon sinks and contributing to global warming (fewer trees = less CO2 being stored in plants = more CO2 in the atmosphere = global warming contribution).

Survival of White Rabbits occurs higher as compared to the Survival of Brown Rabbits due to camouflage abilities in that light colored environment.

If there are not enough resources to support the individuals in a species, then they are unable to increase their population because resources helps in the growth and survival of a species.

Sharp teeth, rough skin, or claws to fight of predators are the adaptations that could affect an individual’s chance of survival because these adaptations prevent them from killing.

So we can conclude that Survival of White Rabbits occurs higher as compared to the Survival of Brown Rabbits due to camouflage abilities in that light colored environment.

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Answer:

I am so confused

Explanation:

Answer:

hello your question lacks the required options

Group of answer choices

It allows the animal to consume a second meal while the first is being digested.

It permits development of specialized enzymes and concentration of digestive juices in different regions.

It permits more time for enzymatic action.

Additional physical cutting and grinding of the food bolus is made possible.

All of the above are advantages

answer : All of the above are advantages

Explanation:

An animal with a gastrovascular cavity has some advantages over the animal with a tube-type digestive system . a gastrovascular cavity allows for the digestion and transport of nutrients across the body and is found in phyla and Platyhelminthes

The major advantages the gastrovascular cavity has includes :

It allows the animal to consume a second meal while the first is being digested.

It permits development of specialized enzymes and concentration of digestive juices in different regions.

It permits more time for enzymatic action.

Additional physical cutting and grinding of the food bolus is made possible.

Overall, the independent variable is the factor that the researcher changes or controls in an experiment, while the dependent variable is the factor that the researcher observes or measures to determine the effect of the independent variable.

A scientific experiment is a systematic process used to test a hypothesis or answer a specific scientific question. It involves manipulating one or more variables while keeping all other variables constant, and measuring the effect of the manipulation on the outcome variable. The purpose of the experiment is to establish a cause-and-effect relationship between the independent variable (the variable being manipulated) and the dependent variable (the variable being measured). A scientific experiment typically involves the following steps:

Formulating a hypothesis: A hypothesis is an educated guess or prediction about what will happen in the experiment. It is based on existing knowledge and is testable.

Designing the experiment: This involves deciding on the independent and dependent variables, and identifying and controlling for any potential confounding variables that could affect the outcome.

Conducting the experiment: This involves carrying out the procedures as planned and collecting data on the dependent variable.

Analyzing the data: This involves using statistical techniques to determine whether there is a significant relationship between the independent and dependent variables.

Drawing conclusions: Based on the analysis of the data, the researcher can draw conclusions about whether the hypothesis was supported or rejected.

Here,

In a scientific experiment, the independent variable is the variable that is manipulated or tested, while the dependent variable is the variable that is being measured and depends on other factors during the experiment. The controlled variables are used to help ensure validity within the results.

Within an experiment, the independent variable is typically plotted on the x-axis of a graph, while the dependent variable is plotted on the y-axis. When graphing data, it's important to choose an appropriate scale for each axis so that the data is clearly and accurately represented.

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Answer:

None of the offspring will show the recessive trait.

Explanation:

Genotype of Parent 1: Aa

Genotype of Parent 2: AA

Genotype of offsprings:

AA

AA

Aa

Aa

Since A shows dominant trait, so none of the offspring will show the recessive trait.

Answer:

this question is unnecessary to ask because you haven't provided enough information

Explanation:

Answer: B

Explanation:

Answer:A maternal x linked genes

Explanation:

In marsupials, X inactivation occurs exclusively to the paternally derived chromosome. The genes which are always expressed in this situation is that of maternal X linked genes (option A).

The gene that will be expressed in the situation is maternal X-linked genes. The correct option is A.

Maternal genes are those whose RNA or protein products are produced or deposited in the oocyte or are present in the fertilized egg or embryo before zygotic gene expression begins.

The phenotype of the offspring is determined by the maternal genotype. Maternal effects are frequently observed because the mother provides a specific mRNA or protein to the oocyte, and thus the maternal genome determines whether the molecule is functional.

X inactivation occurs only on the paternally derived chromosome in marsupials. Maternal X linked genes are the only ones that are always expressed in this situation.

Thus, the correct option is A.

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Answer:

Explanation:

Organelle

Answer:

A

Explanation:

Answer:

Its desert

Explanation:

Took the quiz.A PE X

When compared to producing the same amount of conventional crude, tar sands extraction emits up to three times higher greenhouse gas emissions.

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Answer:

B

Explanation:

because oxygen is needed for the body so we can stay alive (sorry if this wasn't the explanation u were looking for)

Answer:

Peyers patches

Explanation:

Peyers patches are group of lymphoid follicles found in the ileum of the small intestine.

This part of lymphatic system form part of immune system that help to control bacteria population in the small intestine and prevent the growth of pathogenic bacteria in the small intestines. It plays an important role in immune surveillance where it recognises pathogenic bacteria and destroy the bacteria.

It is a lymphoid organs destroys bacteria before it can breach the intestinal wall and generates "memory" lymphocytes for long-term memory because it form the part of the immune system which help to fight infection or foreign substances in the body, also by generating lymphocytes which is a white blood cells of the immune system which generate long term memory of foreign pathogens and destroying it.

Answer:

B- nucleus

C- rough endoplasmic reticulum

D- mitochondria

E- smooth endoplasmic reticulum

G- ribosomes

H- golgi apparatus

Explanation:

sori for the late answers:(

The first organisms to have lived in Earth are capable of utilizing inorganic materials and sunlight. These organisms also could live on the Earth that has without to too little oxygen.

OPTIONS

X aerobic plants

X consumers

X producers

ANSWER: anaerobic organisms = Earlier record of the Earth's atmosphere do not contain

Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.

The matching will be:

motion energy = energy related to an object's movement

chemical energy = stored energy related to positions of atoms within molecules

thermal energy = energy of motion of particles in a substance

nuclear energy = energy released when a nucleus splits or combines

gravitational potential energy = energy related to height

sound energy = energy generated by vibration of a string

Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.

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A cold transmitted by a facial tissue is an example of a fomite, which is itself a form of vehicle transmission.

The transfer of infectious agents through objects is called vehicle transmission. That is when an organism uses objects to move from one host to another, this type of transmission can take many forms.

When the transmission is done through lifeless objects such as facial tissue, the tissue is considered a fomite.

Therefore, we can confirm that when a cold is transmitted by a facial tissue, since the tissue is lifeless, it is considered a fomite, which is a form of vehicle transmission.

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Answer:

c. All vegetable oil is cholesterol-free because cholesterol is only found in animal foods.

Explanation:

Cholesterol is a fatty substance which is present in our body. Cholesterol is very important for making hormones and vitamin D etc which helps to digest the food. Cholesterol is only found in animal foods such as meat, chicken, fish and egg etc. More consumption of these substances increases the amount of cholesterol in our body which deposits in the wall of the blood vessels of heart and reduces the flow of blood which causes heart diseases so vegetable oil should be used and avoid animal foods.

A mutation can be neutral such that it has no change to the outcome of the individual which is therefore denoted as option B.

This is referred to as an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA which could contain either DNA or RNA.

Neutral mutation involves the changes in DNA sequence that are neither beneficial nor detrimental to the ability of an organism to survive and reproduce which when observed there is usually no  change to the outcome of the individual and is therefore the reason why option B was chosen as the correct choice.

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A leaf is the lateral appendage of the plant that grows on the stem of the vascular plants and are the main site of the food production by the plants called photosynthesis. Leaves can be simple or compound based on the leaflet division.

Mimosa is the leaf represented.

Thus, option A is correct.

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Explanation:

So, I know you want all of the answers but I can give you a method I use.

I look like by line to look for the first letter of the word you're looking for. (Cirled in blue)

Then check a 3 by 3 box for the second letter of the word. (Boxes in green)

If there is the second letter (in red) continue down that direction to find the word (in yellow)

Sexual Reproduction - type of reproduction that involves two parents

Advantage - more genetic diversity in species

Solution :

It is given that a woman is a nonsecretor but the father of that woman is a secretor. It means that the father's genotype is recessive, i.e. "ss".

The genotype of the nonsecretor mother would be Ss, who have received one recessive allele from her father.

Now the nonsecretor man have a secretor daughter from his previous marriage. That means that he is a carrier nd his genotype is Ss.

Now, we can cross between the heterozygous parents (Ss x Ss) will have offspring with the following genotypes :

1 SS -- Nonsecretor

2 Ss -- Nonsecretor

1 ss -- secretor

Thus the probability that their first child will be :

a). a secretor girl

   \($=\frac{1}{4} \times \frac{1}{2}$\)

  \($=\frac{1}{8}$\)

b). Non secretor girl

     \($=\frac{3}{4} \times \frac{1}{2}$\)

     \($=\frac{3}{8}$\)

c). a secretor boy

   \($=\frac{1}{4} \times \frac{1}{2}$\)

   \($=\frac{1}{8}$\)

Blight, any of various plant diseases whose symptoms include sudden and severe yellowing, browning, spotting, withering, or dying of leaves, flowers, fruit, stems, or the entire plant.

Answer:

What is a potato late blight disease?

Potato blight, disease of potato and tomato plants that is caused by the water mold Phytophthora infestans. The disease occurs in humid regions with temperatures ranging between 4 and 29 °C (40 and 80 °F). Hot dry weather checks its spread.

Why is it called Late blight?

Found on tomato and potato plants, late blight is caused by the fungus Phytophthora infestans and is common throughout the United States. True to its name, the disease occurs later in the growing season with symptoms often not appearing until after blossom.

What is the cause of a potato late blight disease?

Late blight is caused by the oomycete Phytophthora infestans. Oomycetes are fungus-like organisms also called water molds, but they are not true fungi.

What is Corn Leaf Disease?

Another term for that disease is Northern Corn Leaf Blight

Infection begins first on lower leaves and as the season progresses the disease can be found in the upper canopy of the plant. Lesions may form in bands across leaves as a result of an infection in the whorl. The disease is favored by high humidity and moderate temperatures.

What is the cause of Corn Leaf Disease?

Northern corn leaf blight is caused by another fungus that overwinters in infested crop debris. The tan lesions can be small to very large and elliptical in shape, usually with smooth round ends.

Why is it called Corn Leaf Disease?

Northern corn leaf blight (NCLB) is a foliar disease of corn (maize) caused by Exserohilum turcicum, the anamorph of the ascomycete Setosphaeria turcica. With its characteristic cigar-shaped lesions, this disease can cause significant yield loss in susceptible corn hybrids.

Renewable energy: Biofuel, tides, waves, geothermal

Non-renewable energy: Hydrocarbons, gas hydrates