Answer:
humans have a negative impact on the environment
Explanation:
This is because everyday humans overuse earth's resources and realsense lots of harmful gasses in the atmosphere
g The dominant food chain in a kelp forest ecosystem is made up of the three species below, listed with their trophic levels. If sharks enter a kelp forest ecosystem and begin feeding on sea otters, they would have a positive indirect effect on which species
Answer:
Crustaceans, sea urchins, mollusks and fish.
Explanation:
The positive effect occurs on crustaceans, sea urchins, mollusks and fish if the shark feeds on sea otter because sea otter feeds on crustaceans, sea urchins, mollusks and fish. Decrease occur in the population of sea otter due to introduction of shark in the ecosystem which indirectly increases the population of crustaceans, sea urchins, mollusks and fish. So we can say that a positive indirect effect occurs on crustaceans, sea urchins, mollusks and fish due to shark.
7. The process of taking separated parts of DNA and passing an electric current through it
to separate the DNA in a gel is known as:
a. Amplification
b. PCR
C. Electrophoresis
d. Extraction
Answer:
C. Electrophoresis
Explanation:
Electrophoresis is used to seperate DNA based on its size and electrical charge, which explains why an electric current is passed through seperated parts of DNA.
HELP!!!!!! I don’t get it plz help
What is the largest organ in the body
Dominant refers to...
A. The genetic makeup of an organism
B. The trait that is expressed over another trait
C. The physical traits you can see in an organism
D. The trait that is not expressed when a dominant trait is present
Answer:
B. The trait that is expressed over another trait.
Mixing chamber for air and dust is
observed in ....
Explanation: Should We Fill The Blanks ? Or What I don't understand this question
What is a Menstrual Cycle??
Answer:
The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that make pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the uterus to receive a fertilized egg. These cycles are concurrent and coordinated, normally last between 21 and 35 days in adult women, with a median length of 28 days, and continue for about 30–45 years.
It basically prepares you to have a baby!
Feel free too ask questions.
Explanation:
what did the soil conservation act of 1935 call for?
a. poor farming practices and loss of farming soil
b. a federal bureau to regulate the use of federal lands
c. planting native grasses and tree instead of crops
d. a national soil- and water-conservation program
C-planting native grasses and tree instead of crops
if text Mike 25 minutes to go to work on a text Ashley 15 minutes to go to work today Mike left home at 8:30 a.m. and I should leave for my 8:15 a.m. arrive at work earlier
Answer:
mike arrived to work at 8:55 while Ashley arrived at 9:05
Explanation:
8:30 + 25 min = 8:55
8:15 + 50 min = 865 so that would be 9:05
Fred discovered a new organism. It is eukaryotic and multicellular, and it flies to get its food, which is a type of grass. Which kingdom does it belong in?
plants
fungi
archaebacteria
bacteria
animals
protists
need the answers quick
Answer: Animals
Explanation: Animal cells are eukaryotic but so are plants. However, only an animal can fly to get its food. Plants get their food by the sun or by themselves.
Hope that helped! :)
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!
Choose all the answers that apply.
What does the cardiovascular system do?
a.) transports oxygen and carbon dioxide for the respiratory system
b.) carries nutrients for the digestive system
c.) works with the immune system to fight infection
d.) carries hormones for the endocrine system
e.) sends nerve impulses to the brain and spinal cord
Burrowing owls sometimes build their nests in holes that were dug by prairie dogs, coyotes, or badgers and have been since abandoned. They sometimes line the nests with cattle or horse dung. Why
Answer:
To avoid extreme temperature and keep away predators.
Explanation:
Burrowing owls sometimes line the nests with cattle or horse dung in order to avoid extreme temperature. The cattle dung protect the Burrowing owls from extreme temperature of the surrounding so they make nests close to these cattle dung. These dung has many insects which is a food of Burrowing owls and this cattle dung also keep predators away from Burrowing owls.
A class is identifying the features in the map above. Student 1 thinks that X is a seamount and Student 2 thinks that X is a volcanic island. Who is correct and why?
A. Student 1 because a seamount rises above the ocean surface.
B. Student 1 because a seamount does not rise above ocean surface.
C. Student 2 because a volcanic island rises above the ocean surface.
D. Student 2 because a volcanic island does not rise above ocean surface.
Answer:
B. Student 1 because a seamount does not rise above ocean surface.
Explanation:
To find - A class is identifying the features in the map above. Student 1 thinks that X is a seamount and Student 2 thinks that X is a volcanic island. Who is correct and why?
Reason -
We know that,
If a volcano does not reach the surface of the ocean, it is called a seamount.
If a volcano grows in height and volume enough to reach the ocean’s surface, it becomes a volcanic island.
So,
The correct option is - B. Student 1 because a seamount does not rise above ocean surface.
Please answer both I would mark as brainliest.
g Name and describe two possible pathogens that could be responsible. The spinal tap reveals the presence of Gram-negative cocci in the CSF. What would be the likely diagnosis
Answer:
Explanation:
The missing information describing the status of the sick sophomore student is attached in the image below.
The first question says we should name and describe the two possible pathogens responsible for such.
The two possible pathogens are:
Virus and Bacteria.
Recall that, the College student experienced a severe headache, nausea, vomiting, neck stiffness, and fever.
These highlighted symptoms are commonly caused by meningitis which is a bacterial infection.
Surgeons, surgical tools, and scrub nurses must all be sterile when doing surgery; If any infection arises provided all crucial measures were not taking into consideration, it would harm the patient and there will be a risk of meningitis as a result of this.
SImilarly, given that In the CSF, the presence of Gram-negative cocci is shown via a spinal tap; then the likely diagnosis would be that:
The patient has suffered from Neisseria meningitis.
This is because Gram-negative cocci are the most prevalent cause of infection in persons of this age group and In the Gram stain test, it has a dark red color.
Anytime that a substance changes size, shape, or temperature it would be considered a------------------ change. But, if it changed properties such as its density, pH, or how it reacts with other substances it is most likely a -------------- change
Answer:
physical
chemical
Explanation:
changes in size and shape are just physical and changes into a different substance are chemical
Steps of Translation
Using the following word bank: anticodons, codons, mRNA, RNA; fill in the steps of translation.
The ribosome binds to a strand of _____
This nucleic acid has
three-nucleotide codes called ______
The three-letter codes are complementary
to ________
on ________
molecules. Each of these
molecules brings with it an amino acid, which will become part of the growing polypeptide.
Answer:
The correct answer is - mRNA, codons, anticodons, RNA.
Explanation:
During the translation process of protein synthesis, the mRNA strand is attached with the ribosome in order to translate the three-letter nucleotide sequence that is called codons or triplet code into specific amino acids.
These three-letter codes are complementary to the anticodons on the RNA (tRNA) molecules. These nucleic acid molecules with ribosomes bring with them an amino acid to make a polypeptide chain.
A lipoprotein particle functions to ________. dissolve polar lipids for excretion transport nonpolar lipid to body cells metabolize lipids into new substances dissolve polar lipids in urine store lipids in the tissues
Answer:
The correct answer is ''transport nonpolar lipid to body cells''
Explanation:
Lipoproteins are macromolecules whose function is to package insoluble lipids in the aqueous medium of plasma and transport them from the intestine and liver to peripheral tissues. They transport all the lipids that circulate in the plasma: free and esterified cholesterol, triglycerides and phospholipids. Plasma lipoproteins constitute a polydisperse and heterogeneous system of particles of almost spherical morphology, which have a hydrophobic nucleus or core formed by nonpolar lipids, that is, esterified cholesterol and triglycerides, and by a hydrophilic surface layer containing unesterified cholesterol, phospholipids and specific proteins called apoproteins.
Explain the concept of half life
Answer:
Explanation:
Half-life is defined as the time it takes for one-half of a radioactive element to decay into a daughter isotope. As radioactive isotopes of elements decay, they lose their radioactivity and become a brand new element known as a daughter isotope.
What can coral do to waves during stroms
Answer:
The researchers performed a meta-analysis of 27 previous studies of how coral reefs around the world dissipate wave energy, conducted in conditions ranging from normal surf to hurricane-level waves. They found that coral reefs reduce wave energy by an average of 97 percent, dissipating disproportionately more wave energy as wave energy increased.
Hope this Helps :)
Explanation:
Answer:
coral reefs protect the shore from storms and other natural disasters (it creates a buffer by reducing the impact of the harsh waves)
Explanation:
As______ flow downhill, they can break off pieces of rock then carry the rock pieces with them.
Group of answer choices
Rain waters
Glaciers
Sands
Animals
a convergent boundary is a location where tectonic plates move toward each other. which feature of the ocean floor is caused by one tectonic plate moving under another at a convergent boundary
a. a flat plain
b. a trench
c. a mid-ocean ridge
d. a continental shelf
Answer:
At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.
Explanation:
Answer: B. a trench
Explanation: I took the test and I also studied
Which media did you find the most helpful in learning how to ollie and why?
Answer:
The ollie is the foundation to almost every trick on the street, and most tricks on ramps. In street skating, getting that air allows you to jump curbs, to jump over or onto obstacles like rails and benches for grinds, to perform board flips and rotations, to clear stairs on a jump, and more
Answer:
The ollie is the foundation to almost every trick on the street, and most tricks on ramps. In street skating, getting that air allows you to jump curbs, to jump over or onto obstacles like rails and benches for grinds, to perform board flips and rotations, to clear stairs on a jump, and more
Explanation:
hope this helped!
It has been proposed that the presence of black markings on the throat of kung fu geckos is coded by a dominant allele (B) and that the absence of such markings is coded by a recessive allele (b). To test this idea, heterozygous individuals are crossed (Bb x Bb) producing 500 offspring of which 350 have black markings and 150 don’t have black markings. Based on a punnett square, the expected phenotypic ratio for black markings to no black markings is 3:1.
Required:
Write down the correct statistical approach to test if the data is consistent with the expected 3:1 ratio.
Answer:
See the answer below
Explanation:
The correct statistical approach to test if the data is consistent with the expected 3:1 ratio would be the Chi square.
Chi-square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = Expected frequency. In this case:
Phenotype O E Chi square
Blacks 350 3/4 x 500 = 375 [tex]\frac{(350-375)^2}{375}[/tex] = 1.67Non blacks 150 1/4 x 500 = 125 [tex]\frac{(150-125)^2}{125}[/tex] = 5Total Chi square = 1.67 + 5 = 6.67
Degree of freedom = 1
Tabulated Chi square = 3.841
Since the calculated Chi-square is more than the tabulated value, the null hypothesis is rejected and we conclude that the data is not consistent with the expected 3:1 ratio.
A dispersion pattern that indicates that resources are abundant, evenly distributed with little interaction within individuals is:_______.
Answer:
Uniform dispersion pattern.
Explanation:
Uniform dispersion pattern is a type of dispersion pattern in which resources are present in abundant quantity as well as evenly distributed with little interaction within individuals. Due to abundant quantity of resources , the population of organisms increases that leads to more population of individuals in the ecosystem. Due to abundant amount of resources, there is less competition as well as interaction between individuals that are present at that time.
Which of these results is an advantage of the green garden technology shown
in the picture compared with other gardening practices?
A. It conserves forest resources.
B. It conserves water.
C. It prevents air pollution.
D. It prevents water pollution.
SUBMIT
The result is an advantage of the green garden technology shown in the picture compared with other gardening practices is it conserves water.
There are both direct and indirect uses for water. Bathing, drinking, and cooking are examples of direct uses, while the production of steel for automobiles and the processing of wood for paper are examples of indirect uses.
Water is used by every cell, organ, and tissue in our bodies to keep our body temperature stable and maintain other bodily functions. Since our bodies lose water through breathing, perspiring, and processing, it's vital to rehydrate.
Learn more about benefits of water:
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PLEASE HELP QUICK!!!
Which of the following is caused by mutations?
A. Mutations can cause genetic disorders.
B. Mutations never have any effect on
organisms.
C. Mutations only cause problems on the sex
chromosomes.
D. Mutations only cause problems on autosomal
chromosomes.
Answer:
C
Explanation:
Sssssddddddddddddsdd
What is the name of the second structure involved in the reflex arc
Answer:
Sensory neurone
Explanation:
each reflex has a sensory neurone.The sensor may be the nerve endings of the sensory neurone
Please select the word from the list that best fits the definition
An echinoderm that is covered with movable spines and that eats seaweed
sea urchin
sea star
brittle star
sea cucumber
echinoderm
Answer:
echinoderm I'm pretty sure but I'm not 100% so if I get it incorrect I'm sorry
3
1. Which one of the following scientists
was NOT involved with discovery of
viruses?
(1 Point)
Martinus Beijerinck
Felix d'Herrelle
Robert Fleming
3
Dimitri Ivanowsky
Answer:
Robert Flemming
Explanation:
This is because Robert Flemming was a Scottish actor and he invented black guitar. Scientist starts to discover virus in the 1930s . The first virus discovered was tobacco virus and it is discovered by Dimitri IIvanowsky. Electrons microscope was use to discover it because it was too tiny.