Answer:
I think you answered your question but if not A
Explanation:
All the other answers are just dumb
In which environment would primary succession take place? Select 2 options.
an abandoned field
a cooling lava flow
a valley under a glacier
an unused farm
a deserted mine
Answer:the answer is B and C since there is no soil or life
Explanation: explanation is up there
Answer:
B and C
Explanation: I got the answer right on my test
Before dna was discovered in which materials did scientists think the genetic materials was stored?
Answer: Proteins
Explanation:
Answer:
Proteins
Explanation:
Depending on the organism, the number of____in a cell may change.
Answer:
chromosomes
Explanation:
Fertilizer runoff causes an increase in the dissolved nutrients of the ecosystem shown in the food web below. This causes the number of phytoplankton to double.
How will this most likely affect the other species in this ecosystem?
A.
The shrimp population will increase which will cause an increase in the squid population.
B.
The shrimp population will decrease which will cause an increase in the squid population.
C.
The shrimp population will decrease which will cause an increase in the sperm whale population.
D.
The shrimp population will increase which will cause a decrease in the sperm whale population.
Answer:
I believe the answer is A because if shrimp eat phytoplankton, and squid eat shrimp this should work. I am not positive but I hope this helps.
1. Which plant traps bugs in its stem and forces them to walk forward?
Explanation:
The active trap in the Venus Flytrap ( dionaea muscipula )
According to the information in the passage, before purchasing bird food for a bird feeder a person should
es )))
A)
plant trees and shrubs in the yard.
B)
purchase a birdbath and a birdhouse.
know what kinds of birds are common to the area.
D
create a bird-friendly environment in the backyard.
Answer:
1 is C) know what kinds of birds are common to the area.
2 is D) main idea and details
Explanation:
I had it on a test hope this helps
Answer: C
Explanation: Know what kinds of birds are common to the area
When can natural selection lead to evolution in a population?
A. If the environment of the population is stable and provides
resources
B. If the individuals in the population have very little genetic variation
C. If the population has unequal numbers of parents and offspring
D. If the frequency of the alleles for a trait in the population changes
Answer:
D
Explanation:
process of elimination
we'd want limited resources, genetic variation and parent-offspring ratio doesn't matter
Answer:
It’s D
Explanation:
A DNA molecule is made up of building blocks known as nucleotides. Each nucleotide consists of deoxyribose, a phosphate group, and one of the chemical bases. The nucleotides join together to form a
, which form the backbone of a DNA strand.
Answer:
polynucleotide
Explanation:
according to edmentum notes, "The nucleotides join together to form a polynucleotide. Polynucleotides form the backbone of a DNA strand.'
Nucleotides are the building units of the DNA or RNA molecule. DNA is composed of deoxyribose, a phosphate group, and one of the chemical bases that make up each nucleotide.
What is a nucleotide?It is a monomer of DNA or RNA. It is composed of a sugar (deoxyribose in DNA ribose in RNA), a phosphate group, and one of the chemical bases that make up each nucleotide.
The backbone of DNA is formed by which components?It is formed of sugar and phosphate only.
To learn more about DNA, RNA, and nucleotide here,
https://brainly.com/question/12940443
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Which of the following statements regarding selenium/selenoproteins is incorrect?
a. They are proven protection against colon cancer.
b. The amount of selenium in foods depends upon the soil where the plants were grown and animals grazed.
c. Selenium functions as an antioxidant.
d. Selenium plays an important role in the regulation of thyroid hormones.
Answer:
The correct answer is: A. They are proven protection against colon cancer.
Explanation:
Selenium is a mineral that can be incorporated into our bodies in small amounts when we consume certain foods, such as whole grain and dairy products. The amount of selenium in these products depends on the soil where the plants and animals were.
Selenium plays an important role as an antioxidant, which can lower the risk of developing several types of cancer. However, this doesn't mean that its consumption can prevent colon cancer, and the studies that had been done to prove its effectivity in these regards have been inconclusive.
Besides functioning as an antioxidant, selenium also is very important for the regulation of the thyroid hormones, which play an important part in metabolism.
The protein that contains selenocysteine amino acid remnants is called selenoproteins. They are found in the endoplasmic reticulum of the cells.
The incorrect statement is:
Option a. They are proven protection against colon cancer.
The statement can be explained as:
Selenium is a mineral that gets incorporated into our body through foods, dairy and whole grains. The amount of selenium depends on its amount and presence in the soil.Selenoproteins are good antioxidants that can lower the risks of cancers. But its consumption does not provide complete protection against cancers.It also regulates the thyroid hormone and plays a vital role in the regulation of metabolism.Thus, they have not proven medication for colon cancer.
To learn more about selenoproteins follow the link:
https://brainly.com/question/1696005
What type of acid is currently of principal concern when dealing with acid rain?
Answer: Sulfur dioxide (SO2) and nitrogen oxides (NOx) released into the air by fossil-fuel power plants, vehicles and oil refineries are the biggest cause of acid rain today, according to the EPA. Two thirds of sulfur dioxide and one fourth of nitrogen oxide found in the atmosphere come from electric power generators
hope this helps
Unscramble the word - oicnoecm mptcia earth science please
Answer:
The answer is Economic impact.
Which contributes to the movement of air masses
Answer:
The Movement of Air Masses: transporting warm air northward and colder air southward. Counterclockwise winds associated with cyclones transport heat and moisture from lower to higher latitudes and play a significant role in the movement of air masses. A warm front marks the leading edge of this warm, moist air mass.
Explanation:
DPIP was used in the photosynthesis lab to measure the
-Light dependent reactions
-Production of O2
-Light Independent reaction (a.k.a. Calvin cycle)
-Production of CO2
Answer:
Light dependent reactions
Explanation:
DPIP stands for Dichlorophenolindophenol. It is a chemical compound that is used as a redox dye.
DCPIP is blue when it is oxidized DCPIP is colorless when it is reduced.
DCPIP measures the rate of photosynthesis. The redox dye is decolorized by chemical reduction when it is exposed to light in the process of photosynthesis.
DPIP was used in the photosynthesis lab to measure the light dependent reactions.
Why does the moon have a greater influence on Earth's Tides than the sun does
Answer:
Because ocean tides are the effect of ocean water responding to a gravitational gradient, the moon plays a larger role in creating tides than does the sun. But the sun's gravitational gradient across the earth is significant and it does contribute to tides as well.
Explanation:
Some bacteria live in the roots of plants like soybeans and peas.
Bacteria growing on plant roots.
What is the role of these bacteria in the nitrogen cycle?
Answer:
Nitrogen is the most commonly limiting nutrient in plants. Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation. Rhizobia bacteria convert nitrogen gas (N2) to ammonia (NH3) in a process called nitrogen fixation.
Answer:
to convert free nitrogen into usable nitrogen
Explanation:
on edge
which of the following describes an interaction where an organism of one species benefits and an organisms of a different species is not significantly affected?
What happens during interphase that allows the two resulting cells to be the same as the
original cell?
Answer:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
A. Describe how C. parvum obtains the glucose it needs for glycolysis after it has infected another cell.
B. Explain the role of lactate dehydrogenase in enabling C. parvum to continue producing ATP by glycolysis.
C. Identify the independent variable used in the experiment.
D. Identify the difference between the control cells and the experimental cells used in the experiment.
E. Justify the use of a control in this experiment.
F. Justify the researchers using a different range of concentrations for FX11 than was used for gossypol.
G. Based on the data in Figure 1, Identify the concentration of gossypol that reduced C. parvum growth to 50% of that in control cells.
H. Researchers discovered a strain of C. parvum that expresses a functional variation of the lactate dehydrogenase gene. A DNA sequence comparison showed that the variant differs from the normal sequence in the region that codes for the enzyme’s allosteric site. Predict the effect of FX11 treatment on C. parvum that express this variant of lactase dehydrogenase.
I. Provide reasoning to support your prediction.
J. Explain how gossypol and FX11 might be used as drugs to treat C. parvum infections in humans without negatively affecting human cells.
Answer:dang
Explanation:
Which of these is found within all cells?
Organ systems
Organs
Tissues
Molecules
Answer:
tissues
Explanation:
cells make tissues and tissues make organs
In Guinea pigs, short hair (S) is dominant over long hair (s), and black coat color (B) is dominant over
albino (b). Both genes assort independently. A female of a true breeding line with a black coat and long
hair is mated with a short haired albino male (also from a true breeding line). (a) What are the
phenotypes of the F1 generation? Explain. (b) If F1 is mated, which percentage of the offspring will be
homozygous for both characters? Give all genotypes and phenotypes of these homozygotes.
Answer:
Explanation:
Short hair (S) is dominant over long hair (s), and black coat color (B) is dominant over albino (b).
A female of a true breeding line with a black coat and long hair is mated with a short haired albino male (also from a true breeding line)
parents genotype BBss x SSbb
gametes Bs x Sb
F1 generation geenotype BbSs
Phenotype- They are all with black coat and short hair
Mating of F1 BbSs x BbSs
Percentage of offspring homozygous for both characters:
Bb x Bb Ss x Ss
BB Bb Bb bb SS Ss Ss ss
1/4 1/4 1/4 1/4
1/4*1/4 = 1/16 = 0.0625 = 6% for each homozygous characters (BBSS-6% and bbss-6%)
The genotypes of the homozygotes are BBSS and bbss
The phenotype of BBSS is black coat with long hair
The phenotype of bbss is an albino with short hair
Why are leaves of water lily coated with wax on the upper surface?
Answer:
The wax creates an outer layer of zero friction surface helping the water lily leaves float on the water surface, the wax also creates a shiny coating that reflects and lowers the temperature of the water and also prevents water loss by evaporation and helps in prevention of other plant diseases.
Explanation:
At what ages are teeth the most accurate indicators of age of an unknown skelton? Justify your answer with an explanation.
(Forensics)
Answer:
The tibia completes growth at about age 16 or 17 in girls, and 18 or 19 in boys. For toddlers to teenagers up to age 21, teeth are the most accurate age indicators
Explanation:
What is the original source of energy in a food web?
Answer:
the sun or grass
Explanation:
first the sun because the sun helps produce photosynthesis which grows the grass so that other animals can eat from the grass
Which of the following relationships may present harm to one of the organisms involved?
I. Commensalism
II. Parasitism
III. Predation
IV. Mutualism
(A) I and II only
(B) I and IV only
(C) II and III only
(D) III and IV only
Answer:
C
Explanation:
Predator-Prey relationship
Consider the steady ultafiltration of a solute from the capillary across the glomerular endothelial cells into the urinary filtrate in the kidneys. Model the endothelial cells as an infinite membrane of thickness tEC. Assume a well-mixed capillary with concentration CC and a well-mixed filtrate at CF. With a diffusion constant of DEC in the endothelial cell compartment, what is concentration profile across the endothelial cells
Answer:
DEC = CC + CF
Explanation:
It should be understood that, the concentration profile across the endothelial cells will base on the diffusion rate of the filtrate .
The process through which humans breed other animals and plants for particular traits:
A) artificial selection
B) genetic engineering
C) genes
D) selective breeding
E) traits
Answer:
A) artificial selection
how does blood volume affect blood pressure
Answer:
Changes in blood volume affect arterial pressure by changing cardiac output. An increase in blood volume increases central venous pressure. This increases right atrial pressure, right ventricular end-diastolic pressure and volume.
Explanation:
What are the five main functions of nematodes in soil?
Answer:
Nematodes are the bacterial feeders, fungal-feeders, plant parasites, predators, and omnivores.
Explanation:
hope this helps :)
Answer:
Nematodes play an important role in nutrient cycling. In particular, they play a key role in the nitrogen cycle. Nematodes take in nitrogen and excrete it in a form that plants and bacteria can use.
Nematodes graze on bacteria, plants, and other soil organisms. In ecosystems, nematodes play a major role in regulating the populations of their prey organisms.
Nematodes carry fungi and bacteria in and on their bodies. As nematodes move through the ecosystem, they disperse the bacteria and fungi.
Nematodes are a part of food chains and food webs. They are an important food source in many ecosystems.
Nematodes impact the health of other organisms. Some help prevent, or suppress, disease by eating other disease-causing organisms. Other nematodes cause disease in plants and animals.
Explanation:
Got 100%
Why do fungi need to live in moist areas
Answer:
Search Results
Featured snippet from the web
Fungi help catabolism of complex organic matter into simple available inorganic forms. In other words they breakdown organic matter to obtain energy. This process of decomposition requires aerobic ambient and moisture therefore they are mostly found in moist habitats rich in detritus.
Explanation:
What is the conclusion of Hershey's and Chase's experiment
Answer:
Hershey and Chase concluded that DNA, not protein, was the genetic material.
Explanation:
Answer: The Hershey–Chase experiments were a series of experiments conducted in 1952[1] by Alfred Hershey and Martha Chase that helped to confirm that DNA is the genetic material.
So here the answer is: that DNA was not the heritable material
Explanation:
