can someone help brainliest
Answer: 1. founder effect
2. evolution
3. natural selection
4. species
5. geographically isolated
Explanation: Good luck! :D
how can use of fertilizers affect respiratory health?
a) they directly produce gas particles of air pollution
b) they can contaminate bodies of water
c) they can contain contaminants that can enter the air during storms or high winds
d) fertilizer use does not impact respiratory health
Answer: C) They can contain contaminants that can enter the air during storms or high winds.
Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).
B is wrong because water contamination does not directly relate to respiratory health.
D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).
Hope this helps :)
Answer:
C
Explanation:
They can contain contaminants that can enter the air during storms or high winds.
Does the difference in structure for arteries and veins make sense given then functions? Explain.
I need help I put a screen shot this is worth 44 points pls help
Answer:
1a, 2b, 7f, 4d, 3g, 5c, 6e
Explanation:
What environmental factors will influence the growth of an
elephant?
Answer:
Some environmental factors that will influence the growth of an elephant are those such as natural predators, food available to them, shelter, and the maintainment of their natural habitat.
Explanation:
2. The bigger the planet, the more gravity it will have and thus can hold on to more of an
atmosphere. Which of the terrestrial planets holds on to the smallest atmosphere?
A: Mercury
B: Venus
C: Earth
D: Mars
Answer:
Mercury is the answer.
Mercury is the smallest terrestrial planet in the solar system
PLEASE ANSWER QUICK WILL GIVE BRAINLY
Please select the word from the list that best fits the definition An example of a weakness in bureaucracies.
bureaucracy
formal
organization
rationality
red tape
reasonability
stability
Answer:
Explanation:
A bureaucracy has to justify itself. It always argues that acts in the best interest of those it serves. If it was me answering the question in an essay form I would choose the first choice bureaucracy as part of my topic sentence.
If you don't believe me, the income tax act in both Canada and the United States (especially in America) is one of the most complex laws ever written. So my answer for you would be Red Tape.
It's formal. It's an organization. It's not always reasonable especially if you have to deal with it. It's stable but not in a good way.
Answer:
red tape
Explanation:
19) Which sequence correctly indicates the branching pattern of the human respiratory system? *
trachea →bronchi →bronchioles
trachea →bronchioles →bronchi
bronchi → trachea →bronchioles
bronchioles →trachea →bronchi
Answer:
The first one
El primero xd
Explanation:
Water absorbed by the roots moves through the stem and enters the leaves. Most of this water is lost in transpiration. Explain how the internal structure of leaves results in the loss of large quantities of water in transpiration
What does this pyramid tell us about the population?
The answer is A. The population is growing.
The pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.
What is population?Population is defined as the quantity or population of people living somewhere who are a particular social, cultural, economical, ethnic, or racial category. Making decisions can be aided by knowledge of how population parameters, such as size, regional distribution, age structure, or birth and death rates, vary over time.
The pyramid is used to show the growth in population of a country or population of the city. In the pyramid the growth of population is equal in both male and female population. The pyramid shows that the population of older generation is less than the population of younger generation peoples.
Thus, the pyramid tells us that population is growing continuously, the growth of population is equal in both male and female population.
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Which explanation describes how natural selection produces changes in organisms?
Natural selection enables a trait of an individual to be expressed.
Natural selection occurs when a favorable phenotype allows for differential reproductive success in a population of organisms.
Natural selection occurs when individuals that develop disease die.
Natural selection occurs when neutral phenotypes become common in a population in
Answer: B. Natural selection occurs when a favorable phenotype allows for differential reproductive success in a population of organisms.
Explanation: Good luck! :D
Deoxyribonucleic acid and ribonucleic acid (DNA and RNA, respectively) are very important
biomolecules necessary for life. In at least 7 sentences and in your own words, compare
and contrast DNA and RNA. Explain what you know about the components (parts) of DNA
and RNA and their importance. Be sure to include at least five of the following words:
.
• Nucleic acid
• Nucleotide
• Nitrogen base
• Gene
• Genetic code
• Phosphate
• Sugar
• Protein
• Double helix
• Backbone
Answer:
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Explanation:
Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) are perhaps the most important molecules in cell biology, responsible for the storage and reading of genetic information that underpins all life. They are both linear polymers, consisting of sugars, phosphates and bases, but there are some key differences which separate the two1. These distinctions enable the two molecules to work together and fulfil their essential roles. Here, we look at 5 key differences between DNA and RNA. Before we delve into the differences, we take a look at these two nucleic acids side-by-side.
How have plants evolved?
Give at least 5 examples.
Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... To allow the plant to retain water and exchange gases, small pores (holes) in the leaves called stomata also evolved (Figure below)
Explanation:
1 DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through endosymbiotic events) between 2500 and 1000 million years ago. ... Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants.
2Plants adapt their growth, including key steps in their life cycle such as germination and flowering, to take advantage of environmental conditions. ... All land plants evolved from an aquatic ancestor, and it was after colonisation of the land that the gibberellin mechanism evolved.
3 700 million years ago
The researchers found that land plants had evolved on Earth by about 700 million years ago and land fungi by about 1,300 million years ago — much earlier than previous estimates of around 480 million years ago, which were based on the earliest fossils of those organisms.
4 The earliest trees were tree ferns, horsetails and lycophytes, which grew in forests in the Carboniferous period. The first tree may have been Wattieza, fossils of which have been found in New York State in 2007 dating back to the Middle Devonian (about 385 million years ago).
5 Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
giveme brainlyest
A lone wolf travels hundreds of miles from his original pack and joins a new pack in a different range, affecting the gene pool through which mechanism?
A. genetic drift
B. recombination of alleles
C. gene flow
D. no effect
Answer:
a. genetic drift
A lone wolf travels hundreds of miles from his original pack and joins a new pack in a different range, affecting the gene pool through genetic drift. The correct option is A.
What is genetic drift?
Genetic variety and genetic drift are two of the factors of evolution that are both random processes. Allelic drift, also known as genetic drift, is the change in allele frequency that is most frequently observed in small populations.
Due to random sampling, some alleles in a small population may be lost because of the low allele frequency in a small population. As a result, the population's genetic diversity declines.
Gene flow is the transfer of genes or alleles from a population that resides in one location to a population that resides in another. The movement of various alleles into a new population, it raises genetic variation.
Therefore, the correct option is A. genetic drift.
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which laboratory tools are useful when looking at internal organs of an earthworm
Answer:
An earthworm's internal organs can be viewed through a dissecting microscope. This type of microscope allows enhanced observation of objects that are too large for a compound microscope. Because the magnification is low, this microscope cannot be used to examine cells.
What is the free surface / edge of the epithelial cells referred to as?
Answer: There is an exposed edge of epithelial tissue known as the apical surface
Explanation: The attachment to connective tissue is known as the basement membrane and is composed of proteins.
What are the living and non-living things found in the coral reefs?
Answer:
Explanation:
Example of non living thing in coral reefs are sea shells,example of living things are lobsters, clams, seahorses, sponges, and sea turtles.
PLEASE ANSWER QUESTION IN PHOTO NOOOOW.
Answer:
AUG GCU GGC UGA AAU
Explanation:
I am double checking.
Which of the following sentences best describes osmosis?
A. The cell uses energy to pump molecules across the membrane.
B. Water molecules flow from high to low concentration
C. Water molecules flow from low to high concentration.
D. No cellular energy is required to move glucose molecules across the membrane.
Answer:
D is the correct Answer
Explanation:
it is D because there is a difference bewtween them so watch what you selected please
Which biomolecule is made up of nucleotides?
a. Lipids
b. Carbohydrates
c. Nucleic Acid
d. Proteins
Nucleic acids
Nucleic acids store and transfer cellular information and transfer energy in all living organisms.
Answer:
c. Nucleic Acid .......
Which of the following correctly defines one of the four parts of natural selection?
a
variation: the difference in the heritable traits of an individual from those of other individuals in the same species or population
b
extinction: the state in which all of the members of a species have died
c
overproduction: the process by which each generation produces more offspring than the previous generation produced
d
adaptation: an acquired trait that lets an organism better survive in its environment
Answer:
a- variation
Explanation:
Answer:
A
Explanation:
correct option A- variation
This type of energy is not always predictable.
Answer:
Wind energy.
Explanation:
In this way, the biggest shortcoming of wind energy, which is that it is not always stable and predictable, is solved by the new technology. It goes without saying that this impressive and innovative combination of wind as a renewable energy source and the power of water as storage energy has a lot to offer in the energy production field.
Say you were traveling up a mountain, where would you have the most trouble breathing? At the bottom of the mountain or at the top of the mountain? Describe why.
Answer:
top of the mountain
Explanation:
the air pressure on top of a mountain is really bad so it is harder to breathe
True or False: Cellular respiration is a chemical reaction that occurs in both plant and animal cells. All cells release energy from food through cellular respiration.
True
False
(This is 7th grade science).
Answer:
true
Explanation:
What are stem cells? How are embryonic stem cells different from adult stem cells?
Answer:
Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated.
Embryonic stem cells are derived during early development at the blastocyst stage and are pluripotent, meaning that they can differentiate into any cell type. In contrast, adult stem cells are rare, undifferentiated cells present in many adult tissues.
hope this helps
Please please help me its for a grade :(
In 1 minute, a mass of 9 000 kg of water flows through the turbines.
The speed of the water is 30 m/s
Calculate the total kinetic energy of the water passing through the turbines in 1 minute.
Answer:
1/2 x 9000 x 30x30=4050000 joule
Explanation:
4050000 energy
Can someone plz help me
Resistance (R)= 10 ohm
Potential difference (V) = 9V
V=IR
I= V/R
I= 9/10
I= 0.9 Ampere
The animal-like parasite plasmodium causes the disease
Answer:
Malaria is the answer
Explanation:
The animal-like parasite plasmodium causes diseases like malaria.
What is malaria?A parasite that frequently infects a particular species of mosquito that feeds on people can result in a serious and occasionally fatal disease known as malaria.
An obligatory parasite of insects and vertebrates, Plasmodium is a genus of unicellular eukaryotes. The parasite Plasmodium, which causes malaria, is spread via the bite of an infected mosquito.
Malaria often causes severe disease, including high fevers, shivering chills, and flu-like symptoms. Through the bites of female Anopheles mosquitoes carrying the parasites that cause malaria, people can contract this potentially fatal illness. It can be avoided and treated.
Therefore, malaria is brought on by the parasite plasmodium, which resembles an animal.
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An __ reaction is one that takes in energy, causing the surroundings to get __
Fill in the blanks
1. Exothermic, warmer
2. Exothermic, cooler
3. Endothermic, warmer
4, Endothermic, cooler
Answer:
1.
Explanation:
1. imma pro