Answer:
a) Time = Distance/speed
Time = 30km/15km per hour
Time = 2 hour
b) Time = Distance/speed
Time = 30m/6m per sec
Time = 5 sec
what were the early plants called?
Explanation:
The oldest fossil evidence of seed plants is of Late Devonian age, and they appear to have evolved out of an earlier group known as the progymnosperms. These early seed plants ranged from trees to small, rambling shrubs; like most early progymnosperms, they were woody plants with fern-like foliage.
Fruit color in a particular plant is controlled by a set of three quantitative traits that work in an equal and additive manner. Each trait has two alleles (i.e., A and a); each allele represented by a capital letter produces one dose of yellow pigment, while alleles represented with lower case letters do not produce any pigment at all. How many different shades of yellow fruit color are there
Answer:
7
Explanation:
The number of distinct shades of fruit color would be 7. It is given that the color is dominated by a group of three QTL(quantitative traits) with each trait having two alleles(A,a). Out of these two alleles, one represented by a capital letter(A) generates a single dose of yellow pigment while the latter represented by a smaller case letter(a) does not generate any pigment. Since there is no environmental effect, the number of various yellow shades would be 7 through the combinations of yellow and colorless pigments(A/a, A/a, A/a, A).
The diagram shows the life cycle of a fern. HELP ASAP!!!!
What does stage 2 show?
A) A mature spore-producing fern plant has fonds and produces spores.
B) A spore grows into a mature gamete-producing plant.
C) A zygote forms when a sperm fertilizes an egg cell
D) A gamete-producing fern plant is flat and shaped like a heart.
Answer:
the answer is b
Explanation:
if you need the explanation it is because the plant with the brown dots beside it is the plant producing the spores and the plant next to it is one of said spore growing into a gamete producing plant i honestly hope this helps
HELPP IMA GIVE 15 POINTS
How can we test for density?
Answer:
Using a vernier caliper or ruler, measure the length, depth and width of the object in centimeters. Multiply these three measurements to find the volume in cubic centimeters. Divide the object's mass by its volume to determine its density. Density is expressed in grams per cubic centimeter or grams per milliliter.
Explanation:
I hope this helps! :)
Essay.5 points
Explain the importance of microscope n field of medicine.
Answer:
Doctors use microscopes to spot abnormal cells and to identify the different types of cells. This helps in identifying and treating diseases such as sickle cell caused by abnormal cells that have a sickle like shape.
Which property of matter is useful for holding papers and photos on refrigerator doors?
Answer:
Magnetism
Explanation:
The refrigerator doors are made of metal, and we use magnets to hold papers and photos on their surfaces. Magnets attract metals such as iron, cobalt, nickel, etc. That is due to the physical property of matter called magnetism, which is related to the attraction force generated by a magnetic field.
5. The fossilized jawbones in the diagram below show the changes in organisms over time.
Answer:
B. These fossils provide evidence that evolution occurs over long periods of time
Explanation: The diagrams show different jawbones millions of years apart meaning that evolution took very long periods of time, I hope I'm correct
Answer:
the answer is B
Explanation:
i did the test on preformance
Today, which of the following are considered to be the most deadly weather-related disasters?
A)
heat waves
B)
hurricanes
C)
tornadoes
D)
snow storms
A: None of the potential offspring would be male, because the potentially male zygote would have two X chromosomes, and the Y chromosome would be ignored.
B: The male offspring would all be red-green color-blind, because of interference from alleles on the Y chromosome.
C: The male offspring would have full-color vision, because of the presence of the extra X chromosome
D: There would be no change to the phenotypes of the possible offspring, because the extra X chromosome would not be active.
Answer: C the male offspring would all be red-green color-blind, because of interference from alleles on the Y chromosomes
Explanation: College board got it correct
The male offspring would all be red-green colour-blind, because of interference from alleles on the Y chromosome. Hence, option B is correct.
What is colour blindness?a diminished capacity to tell some colors apart. Frequently, the condition is hereditary. Medications and specific eye conditions are additional factors. Men are affected more than women.
Inherited color blindness is not treatable. Treating the underlying issue may be helpful if another condition is the cause of color blindness.
The X chromosome is where the genes that might cause red-green color blindness is handed down. Men are more likely than women to have red-green color blindness since it is X-chromosome-inherited. This is due to the fact that males inherit just one X chromosome from their mothers. Hence, option B is correct.
Learn more about color blindness, here:
https://brainly.com/question/30037088
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why are new pennies made with less copper than old pennies
Answer:
because it is cheaper to afford
Explanation:
Look at the list.
• Support the leaves, flowers, and fruits of plants
• Move water from the roots to the leaves
• Move food from the leaves to the stem and roots
What would be the correct title for this list?
How Roots Help Plants
How Food Moves Through Plants
How Water and Minerals Move Through Plants
How Stem Help Plants
Answer:
How stem help plants
Explanation:
Is this really college level, by the way?
What is the function of nitrogen fixing bacteria
Answer:
microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
A)x-linked
B)No answer text provided
C)recessive
D)dominant
Answer:
D)dominant
Explanation:
what is the name of earths internist layer
I think it's "Inner Core"
Answer:
the inner core
Explanation:
the earth is divided into 3layers
Which of the following describes the mRNA molecule produced from transcription?
The mRNA molecule is made using the coding strand of DNA, which depends on the gene being
transcribed.
O The mRNA molecule is made using the coding strand of DNA and is transcribed in the parallel
direction
The mRNA molecule is complementary to its DNA template, which depends on the gene being
transcribed.
O The mRNA molecule is identical to its DNA template, which depends on the gene being transcribed.
Answer:
The mRNA molecule is complementary to its DNA template, which depends on the gene being transcribed.
Explanation:
The process of the formation of RNA from DNA is called transcription.
Messenger RNA (mRNA) is a single-stranded RNA molecule that is complementary to its DNA template as the enzyme, RNA polymerase matches the complementary bases to the original DNA strand and then initiates the process of RNA synthesis. Once the strand gets completed, the process got terminated.
Hence, the correct answer is "The mRNA molecule is complementary to its DNA template, which depends on the gene being transcribed."
the blank begins when the male butterfly detects a female butterfly releasing pheromones at close range A. Asexually B. Sexually C. Reproduce D. Mating
Answer:
D) mating
Explanation:
this is the only word that makes sense when filling in the blank
How does the haemoglobin provide the body with energy ?
Answer:
Hemoglobin transfers oxygen from the lung to the muscles, brain, and other organs, and also helps the body to convert carbohydrates and fat into energy.
hemoglobin helps the body convert carbohydrates and fat into energy
Give an example of a sports performer that would require a high level of CV endurance.
Answer:
Cardiovascular endurance is the ability to exercise without becoming overly tired because your heart, lungs and blood vessels are healthy. Exercise examples include walking, jogging, cycling, dancing, running and bike riding. Distance swimming is also a good cardiovascular endurance exercise.
PLEASE HELP!!!! 100 POINTS TO BRAINLIEST!!!!!
During which of the following processes would carbon most likely be required?
A. Breaking of rocks
B. Generation of electricity
C. Making of glucose
D. Running of cars
I think its C but when I looked the question up to check my answer, someone said they put C and got it wrong. I know we take fossil fuels out of the ground and burn them to create electricity or to make our cars run. and that burning fossil fuels releases carbon dioxide back into the air. And I know that carbon dioxide, water, and light make glucose.
Answer:
D
Explanation:
Answers D
Answer:
Glucose
Explanation:
During photosynthesis, plants take in carbon from the atmosphere so that they can create glucose. During cellular respiration, living things give off carbon as a waste product. This gives the carbon back into the air.
other than color differences, is there any difference between the brown or white bunnies in the simulation?
Is cloning and genetic engineering ethical?
Answer:
yes.....................
Answer:
It lies on your perspective
Explanation:
If you clone a human because that is the perfect human, or you genetic engineer a human to make the perfect human, society will benefit, but will the clone/engineered human benefit? As I already said, it is all about perspective.
1. The diagram below represents part of Earth's latitude-longitude system. 2 points
What is the latitude and longitude of point L?*
45°
30°
15° 0°
15° 30° 45°
30°
N
20°
10°
0°
LI
10°
20°
30°
O (A) 5º E 30°N
(B) 5° N 30°E
(C) 5° W 30° S
O (D) 5° S 30°W
Answer:
I am not sure but the answer must be C
The period directly following the action potential is known as?
13. which of the following traits of land plants protects the leaves and stems from drying out
Answer:
The roots absorb water when it rains and they hold it in.