Answer:
A forecast with a large cumulative sum of forecast errors
Explanation:
Which best describes the pericardium?
structures inside the heart that ensure that blood flows in one direction only
a sac around the heart that allows the heart muscle to receive oxygen
a sac around the heart that protects the heart and chest tissues
structures inside the heart that bring blood to the lungs for oxygenation
Answer:
c
Explanation:
The pericardium is a thin sac that surrounds your heart. It protects and lubricates your heart and keeps it in place within your chest
Pericardium is best described as a sac around the heart that protects the heart and chest tissues.
What is the Heart?This is the central organ of the circulatory system which is involved in pumping blood to other parts of the body.
The pericardium surrounds the heart and helps to protect it from external pressure and other factors.
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What are the four processes in which matter cycles on Earth?
Answer:In the rock cycle, rocks and matter go through uplift, weathering, erosion, deposition, melting, crystallization, and metamorphism as they travel between Earth's surface and its interior layers. In the water cycle, water particles undergo evaporation, condensation, precipitation, and flow.
Explanation:
Why do we need cell division?
if two creatures with droopy ears mate, can their offspring have pointy ears? explain your answer.
no because they're genetics
What types of rocks do the numbers 2, 3, and 5 represent, in that order?
a. igneous, sedimentary, metamorphic
b. metamorphic, igneous, sedimentary
c. sedimentary, igneous, metamorphic
d. sedimentary, metamorphic, igneous
Answer:
d) sedimentary, metamorphic and igneous
Answer:
The answer is B
Explanation:
c. What percentage of the offspring will be round? _______________
6. RR x Rr
a. What are the different kinds of gametes these parents can produce? ___________
b. Make a punnett square
porcierto una chica me gusta xd y la ayude
Answer:
Technical there is a 50% chance but I think the answer would actually be 25% chance of being round
4. Compare and contrast the rate of sea floor spreading along the Mid-Atlantic Ridge and East
Pacific Rise.
Answer:
The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean. ... The rift valley is 1 to 3 km deep, about the depth and width of the Grand Canyon. In contrast, the East Pacific Rise spreads fast at rates of 6 to 16 cm per year (more than 20 cm per year in the past).
Which phrases describe a metamorphic rock
Answer:
formed by a volcano
Explanation:
Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. Igneous rocks form when rocks are heated to the melting point which forms magma . Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Answer:
formed from a volcano
Explanation:
i took the test got it right, hope this helps! :)
Scientists continually work to better understand human diseases. Knowledge of the human genome enables them to better understand the proteins involved. How does analyzing human genomes help scientists in this endeavor?
a) Chromosomes join together to make proteins.
b) The bases that make up DNA are also present in RNA
c) DNA contains the information used to make proteins.
d) Nucleic acid molecules have shapes similar to those of proteins.
Answer:
I believe the answer is c.
Answer:
The correct answer is c) DNA contains the information used to make proteins.Explanation:
I took the test and made a 100 so you can trust me
Please leave a thanks and rate this answer 5 stars. You don't need an acount to do this!
How is the blackjack seed suited to its method of dispersal?
Answer:
Seeds are widely dispersed through the fruits hook-like bristles that embed themselves in clothing and the fur of mammals and feathers of birds. They are also spread by wind, water and soil.
Explanation:
Quick question. What is this? Should I move out???
Answer:
thats a bed bug you're screwed
Part B
What are the strengths and weaknesses of the cell model?
Answer:
strengths:The cell model shows all the process involved, and it's easy to understand, even if a person isn't familiar with the process
weaknesses: it doesnt show organelle or rna
Answer:
The cell model clearly shows all the processes involved, and it’s easy to understand, even if a person isn’t familiar with the process. The actual cell diagram doesn’t show all the organelles, so it’s an inaccurate representation of the cell. It also doesn’t show all the RNA involved in transcription and translation.
Explanation:
Plato / Sample Answer
For the Rock Pocket Mouse, what accounts for the difference in the color of the environment?
Answer:
Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico, however, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.
Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico,
yet, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.
Why are rock pocket mice different colors?
There is natural variation of coat color in the population of rock pocket mice living on the lava flow.
The mutations can cause a change in coat color, and these genetic changes are passed on to offspring.
Thus, due to the Mc1r gene there are difference in the color of the environment.
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Answer 26-28 please thanks
Answer: 26=3
27=16
28=50
Explanation:
GIVING BRAINLIEST TO FIRST GOOD ANSWER! A LOT OF POINTS PLS ADD EXPLANATION MARINE SCIENCE
A scientist wants to test whether the pH, salinity, or temperature of seawater impacts coral development. He sets up an experiment with three conditions:
Aquarium 1: Normal pH, normal salinity, normal temperature
Aquarium 2: High pH, high salinity, high temperature
Aquarium 3: Low pH, low salinity, low temperature
What factor would improve experimental design the most? (3 points)
Select one:
a. Eliminating Aquarium 1 since it only uses normal conditions
b. Testing one variable at a time and keeping the other two variables constant
c. Using one aquarium and changing the variables from day to day
d. Setting up the variables on a gradient in each aquarium
Answer: The answer is 1
Explanation:
What Earth materials are represented by the numbers 1 and 4?
A. igneous rock and magma
B. lava and magma
C. sediment and magma
Answer:
Sediment and magma
Explanation: I took the test and I got it all right so i hope this helped :)
Where does photosynthesis occur?
PLS HELPP
Answer: Leaf
The leaf absorbs sunlight and carbon dioxide, and later on it produces oxygen for animals to breathe. Photosynthesis is the process of using the sun's energy to make energy for the plant.
Describe the control group for an experiment that examines the effect of fire intensity on the biodiversity of tree communities.
Answer:
explanation below
Explanation:
The control group would be the biodiversity of the trees without the fire
The control group in the experiment would center on the biodiversity of the trees without the fire. Ideally, both the control group and the experimental groups are usually identical in every way except that the experimental group would receive the treatment that is believed to have an effect on the biodiversity of trees.
For an experiment seeking to study the effect of fire intensity on the biodiversity of tree communities, the control group will be an experimental unit consisting of a community of biodiversity of trees with no fire or treatment.
In a scientific experiment, they are usually two main groups of experimental units. They are:
The Experimental Group: This group of experimental units receive the treatment. In the case of the experiment cited above, the experimental group would be a community of biodiversity of trees that is set on fire.The Control Group: This experimental units do not receive treatment. They serve as the basis for comparison. In the scenario cited in the question, the control group would be a community of biodiversity of trees without the treatment, which is, no fire on the community.Therefore, for an experiment seeking to study the effect of fire intensity on the biodiversity of tree communities, the control group will be an experimental unit consisting of a community of biodiversity of trees with no fire or treatment.
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help pls I rlly need it?:(
Answer:there is no question
Explanation:
Describe the electron transport chain including its reactants and products
Answer:
The electron transport chain is a series of electron transporters embedded in the inner mitochondrial membrane that shuttles electrons from NADH and FADH2 to molecular oxygen. In the process, protons are pumped from the mitochondrial matrix to the intermembrane space, and oxygen is reduced to form water.
Explanation:
The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.8
W Within a forest ecosystem, there is a large amount of diversity among members of a warbler species. Of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers? Pay special attention to the chromatids.
Answer:
Explanation:
How a Forest Ecosystem Matures . Forest ecosystems tend to always be moving toward maturity or into what foresters call a climax forest. This maturing, also called forest succession, of the ecosystem increases diversity up to the point of old age where the system slowly collapses. One forestry example of this is the growth of trees and the entire system moving toward an old growth forest.
A Large amount of warbler species, crossing over between homologous chromosomes, is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.
There are different mechanisms involved in producing genetic variation among descendants, are-
Crossing-over between homologous chromosomes (prophase 1), The Random lining of homologous chromosomes (metaphase 1), Random fertilization
The Crossing-over events occur between two homologous chromosomes within the equatorial plane and make the daughter cells genetically different from the first one.
The Chiasma is the position where two homologous chromatids interchange genetic information, giving an area for brand spanking new genetic material or information to be provided to descendants.
After crossover, homologous chromosomes get separated again. In the attached image there are four different stages of meiosis.
Stage C is the one that contributes foremost to diversity. We can see that crossover has already occurred between homologous chromosomes and that they have already interchanged segments.
In the image, you will see the difference between chromosomes that have gone through the crossing over mechanism, and chromosomes that have not. The difference in color represents segments interchange and variation.
Therefore, that answer shows the contribution to diversity among the warblers.
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Which is not a function of the respiratory system? *
It warms air entering the body.
O It exchanges oxygen and carbon dioxide.
O It pumps blood to the organs.
O It creates sound through the voice box.
Answer:
it exchanges oxygen and carbon dioxide
Explanation:
You inhale oxygen and exhale carbon dioxide
Out of the given options 3 that is "it pumps blood to the organs" is not a function of the respiratory systems.
The respiratory system is a network of organs and tissues that assist you in breathing. This system assists your body in absorbing oxygen from the air so that your organs can function.
It also removes waste gases from your blood, such as carbon dioxide. Allergies, illnesses, and infections are common difficulties.
The respiratory system contributes to the warming and humidification of the air we breathe. The air is warmed as it goes through the nasal passages and pharynx, which helps to protect the lungs' sensitive tissues.
The respiratory system contributes to the production of sound. When air flows through the larynx (voice box), the vocal cords vibrate, producing sound.
Thus, the option 3 is not the function of the respiratory system.
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If your going to a sandy beach on a sunny day, which would feel warmer- the sand or the water?
Answer:
the sand
Explanation:
PLEASE HURRY DUE IN 5 MINS
What is some of the evidence used by Galileo to support Copernicus’s model and disprove Aristotle and Ptolemy’s?
Each planet spins in an epicycle.
Planets appear to move backward.
Jupiter has moons orbiting it.
The religious and cultural beliefs supported this model.
Claudius Ptolemaeus (85-165 AD) or Ptolemy believed Aristotle's theory that the Sun, Moon, and planets circled the Earth.
However, he improved it to account for the fact that planets sometimes appear to travel backward across the sky, called retrograde motion.
Galileo Galilei used various pieces of evidence to support Copernicus's heliocentric model and challenge the geocentric model proposed by Aristotle and Ptolemy. Some of the key evidence and observations that Galileo put forward include:
Observations of the phases of Venus: Galileo observed that Venus goes through phases just like the Moon.Observation of Jupiter's moons: Galileo discovered four moons orbiting Jupiter, now known as the Galilean moons (Io, Europa, Ganymede, and Callisto). Observation of Saturn: Galileo observed Saturn using his telescope and noticed the presence of what he called "ears" or "appendages" on each side of the planet.Lunar observations: Galileo's observations of the Moon revealed mountains, valleys, and craters, contradicting the notion of a perfect and unchanging celestial realm put forth by Aristotle and Ptolemy.Sunspot observations: Galileo observed sunspots, dark spots on the surface of the Sun.Thus, it's worth noting that while Galileo provided empirical evidence to support the heliocentric model, his ideas and evidence faced strong opposition from the religious and cultural beliefs of the time, as they contradicted the established dogma of a geocentric universe.
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The graph below shows the growth of a population of rabbits in a forest ecosystem. Which environmental factor could have caused the change indicated by "A" on the graph? Rabbit Population in a Specific Ecosystem B Population Size AA- C с A Time o increased availability of food increased predation by herbivores o increased number of decomposers O increased competition among carnivores
Answer:
Increased avaliability of food
Explanation:
WHY ARE C-19 (CORONA VIRUS) NOT ACCURATE AS TOLD?
because it is a new virus that us humans have not experienced and we are still learning about it
Once the DNA strand unwinds and is modified; it sent through the
nucleus for translation. What stage of translation would most likely
occur at letter A?
A) initiation
B) elongation
C) termination
D) RNA processing
Answer:
I think it is A.
Explanation:
How do two copies influence the traits of an individual?
How might missing, damaged, or extra chromosomes affect an individuals traits.
explain how chromosome number affects traits.
use scientific vocabulary
Answer:cookie
Explanation:
1. Fill the big bowl with water almost to its rim.
Which statement is true for all prokaryotic and eukaryotic organisms?
Both types of organisms have DNA contained within a nucleus as genetic material.
Both types of organisms transform energy from sunlight into chemical energy.
Both types of organisms assemble proteins through transcription and translation.
Both types of organisms are made of cells, tissue, and organs that work together.
Answer:
Both types of organisms have DNA contained within a nucleus as genetic material
Answer:
tt
Explanation: