Answer:
The answer is option A
Hope this helps
Answer:
B
Explanation:
Heterotrophic means that the organism cannot produce its own food, so B shows that decomposers are obtaining energy from other sources, making it a heterotroph.
Which statement best describes the difference between vascular plants and
nonvascular plants?
O A. Vascular plants reproduce with seeds, and nonvascular plants do
not.
O B. Vascular plants reproduce with spores, and nonvascular plants do
not.
C. Vascular plants have vessels, and nonvascular plants do not.
O D. Vascular plants have flowers, and nonvascular plants do not.
SUBMIT
The correct option is A. Vascular plants reproduce with seeds, and nonvascular plants do not.
The following information should be considered:
A vascular plant contains vascular vessels to carry water and food to all the different parts of the plant. While on the other hand, Nonvascular plants are most commonly found in moist environments, which assured they get sufficient water without relying on roots.
Learn more: https://brainly.com/question/950632?referrer=searchResults
What does the length of a vector arrow represent?
O A. magnitude
ОО
O B. angle
O c. force
O D. direction
Answer:
Bottom line is "the length of a vector arrow is a scalar quantity representing how long (or short) the arrow is .
Explanation:
The length of a vector is also know as the magnitude. The magnitude determines how quickly something is moving through space whereas the direction tells you where the vector is going. hope this helps you :)
Answer:
A. magnitude
Explanation:
Magnitude is just another word for "size/length." You will typically see vectors often appear in physics and levels of math starting from pre-calc.
*ANSWER PLS N TY* How does water scarcity in certain places result in hunger for the people? a.) Water is needed for proper sanitation. b.) When wetlands dry up, more biodiversity occurs. c.) Polluted water causes disease. d.) Water is needed to grow successful crops.
Answer: D water is needed to grow successful crops
Answer:D
Explanation: Crops need water for transpiration and evaporation. The plant roots suck or extract water from the soil to live and grow, without this crops won’t successfully grow. This should help :)
A silver mine recently opened along the foothills of a mountain. The mine's primary method for extracting silver from the surrounding rock is heap leaching. Which of the following hazards does this process most likely pose to the environment?
I. Atmosphere contaminated with heavy metals
II. Soil contaminated with cyanide
III. Surface water contaminated with sediment
Answers:
I only
II only
III only
I and II only
Soil contaminated with cyanides is the hazard which is the most likely pose to the environment. Thus, the correct option is B.
What is Cyanide contamination?Silver mining is the extraction of silver metal from minerals, starting with mining. Because of this silver, which is often found in the intimate combination with other metals, its extraction requires more elaborate and complex technologies.
Cyanide in the landfills can contaminate the underground water. Hydrogen cyanide, sodium cyanide, and potassium cyanide are the major forms of cyanide which are most likely to be found in the environment as a result of industrial activities. Hydrogen cyanide is a colorless gas with a faint, bitter, almond-like odor. Concentrated acids and cyanides are used to dissolve metals from the rock which are picked up in rainwater.
Therefore, the correct option is B.
Learn more about Cyanide contamination here:
https://brainly.com/question/16812590
#SPJ2
Two species of fish had recently undergone sympatric speciation. The males of each species had a different coloring through which females could identify and choose a partner from her own species. After some time, pollution made the lake so cloudy it was hard for females to distinguish colors. What might take place in this situation?
Answer:..............
Explanation:
Sequence the steps, 1–4, in the order required to create a permanent slide of human cheek cells. [1 mark] Specimen dehydrated Specimen embedded in wax Specimen cut into thin 'sections' Staining
Answer:
The correct order is dehydration, embed in wax, cut into sections, staining
Explanation:
There are certain proceedings needed to obtain stained sections of vegetable or animal tissues for their microscope observations.
These steps are:
Obtention of the material: The tissue is cut to an adequate size.Fixation: When tissues are extracted from the organism, they suffer autolysis and putrefaction, so they need to be fixated in order to keep their cells in the best state possible. Fixation involves preserving the original morphological and molecular characteristics of the tissue. Fixation avoids autolysis, putrefaction, distortion, and retraction of cells and the tissue that could affect its volume or morphology. Dehydration. Once fixated, the fixator must be eliminated and the tissue is dehydrated by using a gradual series of solutions with alcohol in ascendant concentrations. Dehydration must be gradual to avoid tissue deformation. Inclusion. To obtain thin cuts that can be observed under the optic microscope, the tissues must be included in a consistent, firm substance, that might be either hydrophilic or hydrophobic. A hydrophobic medium is paraffin wax, that provides hardness and plasticity. Cut. The tissue included in wax must be cut in slides or sections thin enough to allow the diffusion and penetration of light. A microtome is used to perform these cuts. When using paraffine for tissue inclusion, the cuts are about 5 to 20 micrometers of thickness. Stain. Once the cuts are performed, paraffin wax must be eliminated. This can be done by using an organic solvent. Then the tissue must be stained. Hematoxylin and Eosin are the most common dyes. Animal tissues in general do not have any natural color, so they need to be stained to be observed.Descnbe how technology causes change
-Biology
Answer:
a technological change is an increase in the efficiency of a product or process that results in an increase in output, without an increase in input. ... Processes or products, such as the telephone, move through technological change in three stages: Invention - the creation of a new product or process
Explanation:
Explain why the pH stays the same no matter how much water is in the beaker.
Answer:
pH is based upon the liquid's composition and not the amount inside. If something was added this would change it, but it will always stay at a perfect 7 :)
Explanation:
Mark as brainliest please ill give u a cookie
Answer:
Because water is a natural buffer.
Explanation:
Buffer means the pH doesn't change when more of it is added.
Hope it helps.
Which include the male and female sex cells?
gametes
chromosomes
eukaryotes
diploids
Answer:
gametes
Explanation:
which molecule loses electrons during cellular respiration?
Answer:
glucose
Explanation:
Which of the following is an example of a homologous structure?
1.Eyeballs
2.Bird wings
3.Bat wings
4.Wisdom teeth
Answer:
Explanation:
Which of the following is an example of a homologous structure?
Eyeballs
Katie wants to see if apples that are kept cold will rot or stay edible. She places an apple in the refrigerator and records the date. What should she use as a control?
(a) Keep an apple in freezer
(b) Keep an apple in boiling water
(c) Keep an apple in cool place
(d) Keep an apple in warm place
In a new trial to test the effectiveness for a new type of medicine, why is it necessary for one group to receive a placebo?
Answer:
To serve as control experiment.
Explanation:
Hope it helps.
All wetlands are considered freshwater ecosystem
Answer:
Marshes, swamps, and bogs are all considered wetlands. ... Wetlands are not considered freshwater ecosystems as there are some, such as salt marshes, that have high salt concentrations—these support different species of animals, such as shrimp, shellfish, and various grasses.
Explanation:
i hope this helps you!
Answer:
It will be false
Explanation:
Took on edg
In the diagram, the feature labelled C is only found in plant cells. What is it called?
Answer:
Should be the Chloroplast
Explanation:
Since its green and only plants have it, the way they produce energy is using Chloroplasts..
In the diagram, The cell organelle labeled as c is the chloroplast
The plant cell contains structures that are cell walls, chloroplast, vacuoles that are absent in an animal cell.
Reason:
cell wall present on the outside of the plasma membrane labeled as Evacuoles are the single but largest cellular structure in the plant cell and are present in the center.Chloroplasts:
The chloroplast is an organelle found in plants and other photosynthetic organisms.The chloroplast contains chlorophyll that gives the plant its green color.Chloroplasts capture light energy to conserve free energy in the form of ATP and reduce NADP to NADPH through photosynthesis.The chloroplasts also have a double outer membrane. chloroplasts are minute flattened granules.Thus, In the diagram, The cell organelle labeled as c is the chloroplast
Look at the structure in the picture below. What function does this structure have? A. To see the outside world B. To hear the outside world C. To taste food D. To move around
Answer:
C. To taste food
Explanation:
the mouth is from where living organisms take food in.
Which question is most closely related to the field of biology? A. What are most rocks made of? B. what is the average length of a cobra? C. What is the mass of the moon? D. How fast does the earth rotate?
Answer: a
Explanation:
the length of a cobra doesn't help with the study of life. The moon doesn't either because there is no life on the moon. And how fast the earth rotates is more of a earth science question. I hope this somewhat helps
Explanation:
what is the average Length of a cobra is related to biology because a cobra is a reptile and other options are related to geography
Atoms have a _______
surrounded by _____
A. positive electron, negative nuclei
B. negative electron, positive nuclei
C. negative nucleus, positive electrons
D. positive nucleus, negative electrons
Which option identifies one section of the ocean floor?
intertidal zone
open ocean
neritic zone
transition zone
HELP
Answer:
c. neritic zone
A seabed or the ocean floor is the underwater structure that lies on the bottom of the ocean or sea. The oceanic floor comprises continental inclines and elevations, mid-ocean ridges, trenches etc.
The correct answer is:
Option C. Neritic zone.
This can be explained as:
The shallow region of the ocean is called the neritic zone that extends up to 660 feet of depths.The sunlight is available and plankton's and other organisms can make their food.It is the most prolific zone of the ocean because of the abundance of nutrients.Organisms like sea anemones, crabs, sponges, dolphins, jellyfish etc. prevail in this zone.Therefore, the neritic zone is the section of the ocean floor.
To learn more about neritic zone follow the link:
https://brainly.com/question/20185866
Red-green color blindness is an X-linked recessive disorder.
Answer:
The most common type of red-green color perception defect is due to a mutation on the X-chromosome (i.e. a red-green color blind allele). X-linked red-color blindness is a recessive trait. Females heterozygous for this trait have normal vision. ... The dominant X chromosome is represented as XR.
Explanation:
In addition to being an airway, the _______ is the location of the human vocal cords.
Answer:
the larynx
Explanation:
it is the organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals also known as the voice box.
someone please calculate the ratio of offspring please help pleaseeeeeeeeeeeeeeee
Answer:
2. 1 Pink : 1 white
3. 1 Red : 1 Pink
4. 1 Red : 2 Pink : 1 White
Explanation:
This question involves a single gene coding for flower colour in snapdragon plants. The alleles of the gene exhibits incomplete dominance i.e. the red allele (R) ia not completely dominant over the white allele (W), hence an intermediate pink phenotype (RW) is formed. Based on this, a red snapdragon will have genotype, CRCR while a white one will have genotype, CWCW. The intermediate pink phenotype will have a genotype, CRCW.
The image attached to this question shows four crosses between different traits.
In the second cross between a pink (CRCW) and white offspring (CWCW), 2pink and 2white offsprings will be possibly produced in the ratio 1:1.
In the third cross between a red (CRCR) and pink (CRCW) snapdragon, 2 red and 2 Pink offsprings will possibly be produced in a ratio 1:1.
In the fourth cross between a pink (CRCW) and pink (CRCW) snapdragon, red, pink and white offsprings will be produced in the ratio 1:2:1.
See attached image for the complete punnet square. Note that, there was a mistake in the Genotype of the last cross i.e. pink has genotype CRCW not CWCW.
Which of the following is the conversion factor used to convert light-years to
miles?
A.
5.9 X 102 miles
1 light-year
B.
1 light-year
5.9 trillion miles
C.
1 light-year
5.9 million miles
D. 1 light-year = 5.9 x 101 miles
Answer:
5) 1 light year. = 5.9 trillion miles
1 light year = 5,878,625,373,183.69 miles
1 light year. = 5.9 trillion miles
Which describes the average velocity of a unicycle going around in circles?
O A. The total displacement divided by the time.
B. The average acceleration divided by the time.
O C. Every time the unicycle returns to its starting point, the average
velocity equals zero.
O D. The slope of the acceleration vs. time graph.
Based on the image what would an observer see at Location A? ------------------------
(A).partial lunar eclipse
(B).partial solar eclipse
(C)total solar eclipse .
(D)total lunar eclipse
At the location A, the moon is between sun and earth. Hence, the shadow of moon partially hide sun from that region. Therefore, we can observe partial solar eclipse at location A.
What is solar eclipse ?Solar eclipse is a spatial phenomenon where, the sun is eclipsed by moon when moon comes between sun and earth. The sunlight to the earth is hindered by the moon and a shadow comes in that region of earth.
The moon only casts the outermost portion of its shadow, known as the penumbra, on earth during a partial solar eclipse because the Sun, moon, and earth are not precisely lined up in a straight line. This appears to be the sun being bit into by the moon from our vantage point.
On occasion, the moon just partially obscures the sun's disc. Sometimes a partial eclipse can be mistaken for a total one. eclipse magnitude is a measurement of the eclipsed area's size. Hence, option B is correct.
Find more on solar eclipse :
https://brainly.com/question/4702388
#SPJ2
What are two reasons scientists use shared traits to classify organisms?
O A. Because observing the traits is easier than comparing the genes
that cause them
O B. Because the scientific names of organisms depend on the
amount of DNA they have
O C. Because having similar traits shows that organisms have similar
DNA
O D. Because shared traits can be used to make dichotomous keys
SUBMIT
Answer:
C. Because having similar traits shows that organisms have similar
DNA and D. Because shared traits can be used to make dichotomous keys
Explanation:
I'm pretty sure these are the right answers. The other two choices seemed off.
Two reasons scientists use shared traits to classify organisms are that observing the traits is easier than comparing the genes that cause them, which is option A, and shared traits can be used to make dichotomous keys are two reasons scientists use shared traits to classify organisms.
What is dichotomous keys ?Shared traits are useful in classifying organisms for several reasons as they provide a way to group organisms that share similar characteristics, which can help scientists understand relationships between species. Shared traits can be used to make dichotomous keys, which are tools that help identify organisms based on their physical characteristics. While shared traits may not always indicate a close genetic relationship, they can provide clues about the evolutionary history of organisms.
Hence, two reasons scientists use shared traits to classify organisms are that observing the traits is easier than comparing the genes that cause them, which is option A, and shared traits can be used to make dichotomous keys are two reasons scientists use shared traits to classify organisms.
Learn more about the dichotomous keys here
https://brainly.com/question/3342762
#SPJ2
Which of the following best explains why soil conservation is important to human agriculture? a. Erosion prevention prevents millions of dollars in damage from mudslides. b. It is easier to prevent the degradation of old soil than it is to generate new soil. c. If the soil salinity gets too high crops will not be able to grow in it. d. Soil contamination is a hazard to human and animal health. Please select the best answer from the choices provided A B C D
Answer: It is easier to prevent the degradation of old soil than it is to generate new soil.
Soil conservation is important for human agriculture because it is easier to prevent degradation of old soil than to generate new soil.
What is soil conservation?Soil conservation is a set of agricultural principles and techniques aimed at the proper management of arable land, preventing erosion in all its forms. Its objective is to make the most of the land per unit of planted area. Thus, the physical, chemical and biological degradation of the soil is avoided.
With this information, we can conclude that soil conservation is important for human agriculture because it is easier to prevent the degradation of old soil than to generate new soil.
Learn more about soil conservation in brainly.com/question/25831026
What’s the importantance of the endosymbiotic
Check
Match each type of fossil to its description
petrified fossil
X
hollow form
mold
solid copy
carbon film
living thing turned to rock
cast
X
record of an organism's activity
trace fossil
detail left after an organism decays
Answer:
mold - hollow form
carbon film - detail left after an organisms decay
living things turned to rock - petrified fossil
trace fossil - a record of an organisms activity
cast - solid copy
Which term best summarizes the process of self-feeding?
O A. Digestion
O B. Photosynthesis
O C. Homeostasis
O D. Predation