Answer:
No, not according to any sciences (unless you mean aliens as in immigrants)
Explanation:
There is no way that we are the only living thing in the entire world. There has to be another species out there. They might be wondering if there is another living thing out in space too.
Which is true of prokaryotic and eukaryotic cells?
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
Eukaryotic cells are simpler than prokaryotic cells.
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
Prokaryotic cells are larger than eukaryotic cells.
Explanation:
the answer to this question is prokaryotic cells lack memebrane bound organelles and eukaryotic cells contain membrane bound organelles
how has selective breeding contributed to a wide variety of dog breeds?
Answer:
In the same way that inbreeding among human populations can increase the frequency of normally rare genes that cause diseases, the selective breeding that created the hundreds of modern dog breeds has put purebred dogs at risk for a large number of health problems, affecting both body and behavior.
The author mentions that Shine made several mistakes in her experiment. Describe one major mistake that Shine made.
Answer:
theres no expirement attached, attach an expirement and i can answer
Explanation:
an example of a community
Answer:
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
the ratio of 9:3:3:1?
a. monohybrid cross for two unlinked traits
b. a monohybrid cross for two closely linked traits
c. a dihybrid cross for two unlinked traits
d. a dihybrid cross for two closely linked traits
Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a dihybrid for two unlinked traits.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
Hence, the correct option is C.
Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability A. A tank that includes several goldfish B. Tundra region that has many penguins C. A pine tree in which three groups of birds live D. A rainforest that has many different types of plants and animals
Answer:
definitely D because a rainforest is extremely vast when it comes to different species
Explanation:
brainliest plz?
The ecosystem which is most likely has the greatest biological diversity and therefore the highest sustainability is a rainforest that has many types of plants and animals. Therefore, the correct option is D.
What is ecosystem?An ecosystem refers to the biological community where the biotic as well as the abiotic components interact with each other and influence each other.
It encompasses all the living organisms in a specific area as well as physical and chemical factors that shape their environment such as air water soil climate and environment. They play an important role in functioning the earth's biosphere, as they provide a range of essential services.
The study of ecosystem and interaction between is components is referred to as ecology. Hence, the correct option is D.
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The_______
is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah
Jesus directed them not to tell anyone else.
Answer:
Messianic secret
Explanation:
The Messianic secret is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah. Jesus directed them not to tell anyone else.
Hope this helps!
pls mark brainliest :)
Harvesting wood from forests is one the top industries in the world. There are various ways for loggers to harvest this wood. Which of the following would provide the best sustainable use of the land?
A. Strip cutting the trees because only mature trees are cut
B. Clear cutting the trees because it is the most cost effective method
C. Clear cutting the trees because it produces the greatest timber yield
D. Strip cutting the trees because it minimizes widespread destruction
Answer: D. Strip cutting the trees because it minimizes widespread destruction
Explanation: I think it's (d) because when forest fires occur, the trees will catch as well leading to it to travel from tree to tree, eventually getting around the forest, jungle woods, or wherever the fire occurs
A frog that is dominant for its light green color mates with a brown frog and produces one small brown frog. How is this possible if the green color is dominate?
Answer:
The dominant (light green) parent was heterozygote for the trait
Explanation:
According to Gregor Mendel in his law of dominance, an allele is said to be DOMINANT if it masks the phenotypic expression of another allele in a gene. The allele being masked is called RECESSIVE allele. In this case of a frog whose allele for light green color is dominant over the allele for brown color, the light green color allele (G) is dominant while the brown color allele (g) is recessive.
However, in a cross between that have light green frog and a brown frog, a small brown frog is produced. This is possible despite the green color being dominant because the genotype of the light green dominant parent is HETEROZYGOUS i.e. it contains both light green (dominant) allele and brown (recessive) allele.
Hence, when a gamete with recessive allele (g) is produced by the heterozygous light green frog (Gg), it mates with a recessive allele from the brown frog (gg) to produce a brown offspring (gg).
what happens when a person is infected with live pathogens
Answer:Once you're infected, viruses invade host cells within your body. They then use the components of the host cell to replicate, producing more viruses. After the replication cycle is complete, these new viruses are released from the host cell. This usually damages or destroys the infected cells.
Explanation:
Answer:
Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or through wounds or bites that breach the skin barrier. Organisms can spread—or be transmitted—by several routes.
Explanation:
what is not a main principle of the cell theory?
a-cells are the basic unit of structure and function in living things
b-new cells are produced from existing cells
c-all cells enclose their DNA within a nucleus
d-all living things are made of cells
Answer: c not all cells have a nucleus (prokaryotic cells don’t)
Explanation:
How does the force of gravity move objects in the solar system?
Answer:
One of the most noticeable effects of gravity in the solar system is the orbit of the planets. The sun could hold 1.3 million Earths so its mass has a strong gravitational pull. When a planet tries to go past the sun at a high rate of speed, gravity grabs the planet and pulls it towards the sun
Explanation:
which describes a eukaryotic cell,but not a prokaryotic cell?
Which level of organization is formed when a group of organs work together to perform complex functions?
Molecule
Organ
Organ system
Tissue
Answer:
Organ system is the correct answer, i took the test and passed.
( trust me ;)
Explanation:
Please give me brainlyest
I hope this helps
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Answer: i think it is the 3rd one but i am not sure
Explanation: hope you pass the exam :)
Please help you’d be a life save :) and please hurry if you can it’s due at 11:59 today right now it’s 1:55
How does climate change contribute to the increase of the rate of diseases
17. What causes evaporation?
O Air that is unsaturated with water vapor comes into contact with the surface of the water
O Air that is cooler than the water comes into contact with the surface of the water
O Air that is warmer than water comes into contact with the surface of the water
O Air that is supersaturated with water vapor comes into contact with the surface of the water in
Evaporation occurs when air that is warmer than water comes into contact with the water's surface, hence option A is correct.
What is evaporation?As a liquid transforms into a gas, evaporation, a sort of vaporization, occurs on the liquid's surface. For instance, a high concentration of the evaporating substance in the surrounding gas significantly slows down evaporation when humidity affects the rate of evaporation of water.
It takes in moisture from garden soil as well as the biggest lakes and seas, and the level of the water will decrease when it is heated by the sun.
Therefore, solar energy, or heat from the sun, is what causes the evaporation process to occur, hence option A is correct.
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Which of the following solutions is neutral?
Group of answer choices
a solution with a pH of 14
a solution with a pH of 2
a solution with a pH of 7
a solution with a pH of 9
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Question 4
Potassium hydroxide has the chemical formula KOH. It feels slippery and is used in cleaning liquids. Based on this description, potassium hydroxide is most likely a(n)?
Group of answer choices
acid
base
neutral solution
pH indicator
first to answer gets the brinllest
Answer:
Kleenex
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Answer:
We need a pic to help you.
Explanation:
help me! i'll mark brainliest! overdue assingment!
Answer:
Part A: Fossil Evidence
Part B: Biogeographical Evidence
Part C: Anatomical Evidence
Explanation:
plz thank it
Answer:
Here u go I hope this can help u!!
Explanation:
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
If the cell cycle lasts 36 hours and mitosis takes 25% of the cell cycle, how many hours will the cell be in mitosis?
2. Which of the following is a physical property of matter that is always the same regardless of size
or amount?
A. Mass
B. Volume
C. Density
D. Solubility
HELP
Answer:
A
Explanation:
Since the law of conservation of mass is valid under all circumstances, hence, mass always remains the same, whether a substance undergoes physical change or chemical change
structures in the cell
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
which of the following is an object used in relative dating
A-Carbon 14
B-Daughter Isotope
C-Index Fossil
D-Parent Isotope
i know for sure it’s not A
The object that is used in relative dating is Index Fossil. Thus, option C is correct.
What is Fossil records?
Fossil records are described as the position of found fossils all through the surface or the layers of the earth. The older the fossils are, the deeper it is found. Fossil records are also considered to be gathered information about the total number of the discovered fossils and the data obtained from them.
Fossil records are important guides to determine how life existed before. If you are to assemble a fossil, you will be able to see and tell the evolutionary changes that happened over the past years. Fossil records are evidences pointing out that life before is totally different from now.
Index fossils are fossils that are common yet were only present for a brief time. By comparing a rock layer to other rock layers, index fossils enable scientists to determine the relative age of a rock layer. Organisms that are still alive today yet have undergone little alteration over millions of years are known as living fossils.
Therefore, The object that is used in relative dating is Index Fossil. Thus, option C is correct.
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What appearance is liquid and gas? Choose all that apply.
A: Flows
B: Rigid
C: Stays at bottom of the container
D: Holds it's shape
E: Fills container
F: Takes shape of container
G: No visible shape
Answer:
2 shows the differences among solids, liquids, and gases at the molecular level. A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape
Explanation:
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what do molecules and ions move with in passive transport ?
Answer:
Also called facilitated transport or passive-mediated transport, facilitated diffusion occurs when molecules or ions are processed through spontaneous passive transport. The ions and molecules are moved across a biological membrane through certain transmembrane integral proteins.
Explanation:
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Answer:
The answer is B
How is the earthworm limited by being a skin breather?
Answer:
Earthworms need oxygen just like humans, but they don't have lungs like we do. They have a special skin that allows them to “breathe” oxygen right through it. ... This means the amount of oxygen inside the earthworm will always be less (lower concentration) than the area outside of the earthworm (higher concentration).
Answer:
It won't survive under water? mabye..... i don't think it sent the full question
If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?
Answer: DNA
Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer
Compare and contrast chromosomes and gene
Answer:
Genes are segments of deoxyribonuceleic acid (DNA) that contains the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contains a person’s genes. Genes are contained in chromosomes, which are in the cell nulecus.
Explanation:
Answer:
quick answer
Explanation:
Both genes and chromosomes are inherited from our parents. Genes are like the instruction manual that put us together. They determine our biological predisposition. Chromosomes are the structures that contain our genes, but unlike genes they also determine gender. Chromosomes are made up of two tightly-wound sister chromatids.