Answer:
Natural selection, mutation, and genetic drift are random events.
Explanation:
A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.
Hope this helps :)
The Guam rail is a flightless bird found on the island of Guam. It builds a shallow nest on the ground and lays eggs throughout the year. There are no native species of snakes in Guam, so the Guam rail had no experience with snake predators until the brown tree snake was accidentally introduced sometime between 1944 and 1952. These snakes, which eat a wide variety of animal species, quickly established a large population on Guam.
How was the Guam rail most likely affected by the introduction of the brown tree snake?
A) The brown tree snake ate only species that lived in trees, so it had no effect on the Guam rail.
B) The Guam rail quickly developed the ability to fly in order to escape from the brown tree snake.
C) The population of the Guam rail declined, and the species nearly became extinct. D) The Guam rail began to build its nests in trees.
What causes the different colors of visible light in the electromagnetic spectrum?
A. Different wavelengths
B. Different amplitudes
C. Different frequencies
D. Different speeds
1. All energy originates from the _____.
2. Energy cannot be lost or gained, as described by the law of conservation of _____.
3. Glucose is potential energy stored as _____.
4. When potential energy moves across a cell membrane, it becomes _____.
5. Plants store chemical potential energy as _____.
6. Stored chemical energy is released in the _____.
Answer:
the sun
energy
sugar
chloroplast
The hemoglobin of sickle cell anemia:
1. is oxygen rich
2. can carry less oxygen and more carbon dioxide
3. is normal
4. differs from the normal protein by one amino acid
Answer:
2. Can carry less oxygen and more carbon dioxide.
Explanation:
Sickle cell anemia damages and inhibits hemoglobin in red blood cells reducing how much oxygen they can carry.
Is it possible for parents with dominant traits to have offspring with recessive traits?
The ability to move or operate is called *
O thermal energy
O Transfer
O energy
O collision
O equilibrium
Answer:
energy
,,,,,,,,,,,,,,,,,
Our solar system contains eight planets. Each planet is classified as either a terrestrial planet or a gas giant planet. Which of the following is a difference between these two types of planets?
Answer:
Terrestrial planets are located closer to the sun than gas giant planets are.
Explanation:
because
What is the origin of the word arthropod?
Answer:
Etymology
Explanation:
The best answer gets brainliest
What do you think the relationship is between a cell’s structure and its function?
No links, please :)
Answer all pls or put it in the comments..
Types of organisms : All
Traits of parent 1: Color, size, looks.
Traits of parent : Color, size, looks.
I hope this helped. If so pls Give brainliest.
As a tornado passes across the farmland, it can blow away as much as 5cm of topsoil. What impact does this most likely have on the local ecosystem?
Answer:
i Belive the anwer is D
Explanation:
Which of the following is the correct order of the categories in the modern system of classification?
A. domain, kingdom, class, phylum, family, order, genus, species
B. kingdom, phylum, class, domain, order, family, genus, species
C. domain, kingdom, phylum, class, order, family, genus, species
D. phylum, kingdom, order, class, family, species, genus, domain
1.How did robert hooke contribute to cell theory?
2.How did roberty hooke contribute to germ theoty of disease?
3. .How did anton van leeuwenhoek contribute to cell theory?
4.How did anton van leeuwenhoek contribute to germ theoty of disease?
Answer:
1. While observing cork through his microscope, Hooke saw tiny boxlike cavities, which he illustrated and described as cells.
2. D. Robert Koch developed a way to prove that a specific microbe caused a particular disease. Matthias Jakob Schleiden suggested that ALL plants are made of cells.
3. Anton van Leeuwenhoek is another scientist who saw these cells soon after Hooke did. He made use of a microscope containing improved lenses that could magnify objects almost 300-fold, or 270x. ... He also found for the first time the sperm cells of animals and humans.
4. Antonie van Leeuwenhoek used single-lens microscopes, which he made, to make the first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
Explanation:
Ok y'all, I need help and ill give brainliest :,)
What makes eubacteria different from archaebacterial?
Archaea has cytoplasmic protein and histone, while bacteria does not
There are no differences between the two domains
Archaea lacks a nucleus while bacteria has a nucleus
Archaea is prokaryotic and bacteria is eukaryotic
**I think the first one**
im not 100% sure tho
Explain the following functions of a Lily Flower:
-Chloroplast
-Photosynthisis
-Seeds
-Roots
(Please only answer if you know what it is.)
I will give brainlest to the correct answer!
Answer:
Chloroplast.
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth. Chloroplasts also provide diverse metabolic activities for plant cells, including the synthesis of fatty acids, membrane lipids, ...
Phtosynyhsis.
The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use. For the most part, the planet's living systems are powered by this process
Seeds.
Seeds serve several functions for the plants that produce them. Key among these functions are nourishment of the embryo, dispersal to a new location, and dormancy during unfavorable conditions.
Roots.
Root, in botany, that part of a vascular plant normally underground. Its primary functions are anchorage of the plant, absorption of water and dissolved minerals and conduction of these to the stem, and storage of reserve foods.
A family wants to eat garden-fresh wheat, but they live in an apartment and don’t have a garden. They try a technique without using soil. How?
Answer:
They can stick toothpicks in to a seed and place it on top of a glass of water where half of the seed is in the water. then you set it by a window.
Explanation:
1.) how are arthropods vital to fruit crops?
2.) how are earth worms important?
Answer:
1.) Arthropods are found in all consumers' roles of an ecosystem, whether they eat plants or animals, and some are important decomposers. They are important in the pollination of flowering plants. Some play an important role in soil aeration and water infiltration. They are vital to helping the soil be good so that the plants can grow and you can have delicious crops
2.) Earthworms eat soils and digest organic materials. Their excretion produces enriched soil that is critically important for plant growth.
-increase oxygen in water underground
This is how earthworms are important
Explanation:
Imagine that Earth begins to rotate more slowly. How would this affect a solar day? A sidereal day?
Answer:
days would be longer
Explanation:
How does the support structure of echinoderms differ from that of arthropods?
Answer:
Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:
1. How might the behaviors of bears change over time if they continue to be bred in captivity?
2. Why do you think humans’ muscles relax when they’re sleeping? What could happen if they did not relax during their sleep?
3. What is a PRO of asexual reproduction?
4.What kind of organisms are corals? What adaptations do they have to help them eat?
5.Why are adaptations important for a species?
Answer:
1. Bears are highly intelligent, wide-ranging animals and can therefore suffer particularly badly in captivity. Many bears kept in zoos, circuses and road-side “shows” display abnormal behaviours, including repetitive pacing, swaying from side to side or bar-biting.
Bear Conservtion campaigns to end the confinement of bears for ‘entertainment’. We aim to address five main areas; circuses and shows, zoos and collections, bear farms, dancing bears, and bear baiting. Follow the links below to find out more. See also our separate section on Sanctuaries.
Someone please answer theses 2 questions PLEASE
Answer:
a
Explanation:
What are echinoderms? What type of symmetry do they have?
Answer:
Echinoderms evolved from animals with bilateral symmetry. Although adult echinoderms possess pentaradial, or five-sided, symmetry, echinoderm larvae are ciliated, free-swimming organisms that organize in bilateral symmetry which makes them look like embryonic chordates.
Hop you have a great day :)
Explanation:
Answer:
Echinoderm is any variety of invertebrate marine animals belonging to the phylum Echinodermata
Echinoderms evolved from animals with bilateral symmetry
Explanation:
I hope this helped :)
In the United States, there has been an increase in the number of people infected by mosquito-spread diseases that were previously found only in countries south of the United States. Scientists want to investigate the cause of the increase in mosquito-spread diseases. Scientists have predicted that the mosquitos carrying disease have moved further north as global temperatures have increased.
Which questions would help investigate how the new mosquitoes are affecting the ecosystems of the United States? ***Select all that apply***.
A. Have the natural predators to the mosquitoes also migrated north?
B. Are places in the United States using more pesticides to kill the new mosquitoes? If so, how are these pesticides impacting others in the ecosystems?
C. How have the food webs in the United States changed as a result of the new mosquitoes?
D. What types of organisms are preying on the mosquitoes in their new habitats?
E. How much money has been spent to fight the diseases caused by these mosquitoes across the globe?
GIVING BRAINLIEST
Answer:
#1: No
#2: Yes due to the fact that as more spread the more that they would want to prevent people from getting sick from being bitten.
#3: No, these mosquitoes would only be carrying a disease, not a different type a breed.
#4: Other bigger bugs or small animals who would normally eat bugs.
#5: Thousands if not millions of dollars across the world due to the fast spread of them moving to a new area.
Explanation:
Which step to preparing a pomegranate is shown in the photograph?
a.Cut off the crown and the opposite end of the pomegranate.
c.Use a colander to drain and slightly rinse the seeds.
b.Using a sharp knife, score the skin lengthwise.
d.Using your fingers, and keeping the pomegranate submerged, divide the seeds from the rind and from the skin.
Answer:
Option d :Using your fingers, and keeping the pomegranate submerged, divide the seeds from the rind and from the skin
The condition of the environment has no effect on the people, animals, or plants that live in it.
Answer:
Assuming this is a true or false, it is False
Explanation:
Answer: bit is False
PLEASE HELP QUESTION BELOW....
Answer:
the gravitational pull on the comment increases
A _____________ is like a thread of DNA.
A. chromosome
B. allele
C. genotype
D. ______
Answer:
Explanation:
The answer is A. Chromosome
CHROMOSOME, is like a thread of DNA
hope it helps.
The first answer gets brainliest
Tell me for each picture if it's any of these things
Cell
Unicellular
Multicellular
How would an animal feel after they hibernate?
A:Tired
B:Fat
C:Hungry
D:Warm
Please don’t do links and please try YOUR best I won’t be angry if u get it wrong at least u tried ur best thank you
Answer: Hungry
Explanation:
They've just slept for months, they haven't eaten
When its central nervous system sounds the alarm, a hibernator starts to shiver.
I’m guessing C...
This back-and-forth is exhausting, and hibernators do it with little to no food and water.
do u ever wanna be left alone but u cant?
Answer:
No, I'm a lonely person
Answer:
no I am lonely took brother