Why do brown dwarfs never evolve?
Answers
Answer:
I KNOW WHAT YOU DID
Explanation:
WHY DID YOU DO THIS TO MY BOY>>FRIEND
Related Questions
A biologist studying an unknown pathogen discovers the following characteristics:
• The pathogen contains DNA
• There is no cell membrane present
There is a simple protein capsid surrounding the genetic material
Based on the characteristics of the unknown pathogen, a biologist would most likely classify this as a ___
Answers
Answer:
the biologist will classify it as a prokaryotes
Which sex chromosome determines the sex of a baby?
Explain your answer.
Answers
Answer:
Girls have two X chromosomes and boys have chromosomes (XY).
Explanation:
Girls have two X chromosomes (XX), and boys have one X and one Y chromosome (XY). Whether a baby will be a boy or a girl is determined at the time of conception.
A diagram of a human skeleton.
Answers
Answer:Here is a detailed form of the human skeleton.Hope it helps!
How does meiosis create four daughter cells from one parent cell?
Answers
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. ... The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
Explanation:
Unlike in mitosis, the daughter cells produced during meiosis are genetically diverse. Homologous chromosomes exchange bits of DNA to create genetically unique, hybrid chromosomes destined for each daughter cell
How does air flow when a low-pressure center occurs in the atmosphere?
Answers
Answer:
A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation.
Explanation:
is a rotting log considered living or non living? why?
Answers
Answer:
A rotting log is nonliving. However, it can have mold, lichen, or fungus growing on it, which is not the log itself. Those three things are living. And though the log was once a living tree, at it's current state, it is nonliving.
I hope this was helpful!
After large scale fishing, which populations of organisms are
becoming more rare? Why?
Answers
what type of mutation has the least amount of impact on a protein ?
Answers
Answer: Silent Mutation
Explanation: Silent mutation: Some mutations that change DNA bases do not have any effect on the sequence of amino acids in the protein. These mutations are called silent mutations and they do not affect the structure or function of the protein because there is no effect on the amino acid sequence.
Answer:
Point Mutations
Explanation:
It is the least harmful mutation
How water resources are being polluted and how can we conserve them ?
Answers
what happened when Griffith mixed heat-killed bacteria with the harmless culture of bacteria?
PLEASE HELP!!!!!!!! ASAP!!!!!
Answers
Answer:
C.
Explanation:
the heat-killed bacteria had passed their disease causing ability to the harmless strain
What are the advantages of getting spider silk from goats instead of spiders?
Answers
Answer:
The benefits of genetically modified web spinning goat is that the web produced can be used for many different positive reasons. Spider silk is the strongest naturally occurring fiber and is 6 times strong than steel of the same weight.
Explanation:
i got it right
What is the process of shedding the uterine lining that was built up to nourish an embryo?
maturation
ovulation
menstruation
fertilization
Answers
Answer:
Menstruation is one part of a woman's cycle when the lining of the uterus (endometrium) is shed. This occurs throughout a woman's reproductive life. With each monthly cycle, the endometrium prepares itself to nourish a fetus.
Explanation:
1. The pollutants in our atmosphere have the ability to change the entire planet’s
2. is a theory that states that the increasing carbon dioxide in the atmosphere is causing the climate to warm up.
Answers
Answer:
Ans1 Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn't exist on our planet's surface. And it warms our planet and keeps temperatures habitable for our living Earth
Ans.2 The carbon dioxide theory states that, as the amount of carbon dioxide increases, the atmosphere becomes opaque over a larger frequency interval; the outgoing radiation is trapped more effectively near the Earth's surface and the temperature rises.
Do you have a summative in Grade 9 science?
Answers
Answer:
check with your teacher
Answer:
yes I have
Explanation:
why did you ask
In this Landsat image of a rain forest, healthy vegetation appears red and deforested areas appear light blue. What explains the
difference in colors?
A)
Colors are assigned to different reflected sound waves.
B)
Colors are assigned to different absorbed electromagnetic energy.
Colors are assigned to different reflected bands electromagnetic waves,
D)
These are the colors of the reflected visible light on Earth's surface.
Answers
Answer:
Colors are assigned to different reflected bands electromegnetic waves.
Explanation:
the testes in a man and the ovaries in a women are reproductive organs what is the main function of these organs in the process of reproduction
A. to pump blood through the veins and arteries of the human body.
B. to secrete waste products that are harmful to the human body.
C. to produce sex cells that join to form a developing baby.
D. to store iron that will be used to make red blood cells.
Answers
Answer:
to pump blood through the veins and arteries of the human body
Testes in man and ovary in female is a part of the reproductive organ which produce gametes, after fertilization to develop a baby, hence c is the correct option.
What are reproductive organs?
Female reproductive organs consist of the ovary which generates the ovum a female gamete that is responsible for fertilization.
Males consist of consisting of tests that generate the sperm male gamete which is responsible for fertilization.
Both organs are necessary to produce a gamete for fertilization which develops a zygote and makes the baby is developing of the cells.
Therefore, for producing sex cells ovaries and testes are important organs, hence option c is correct.
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which of the following is NOT a way in which a lake can become a
forest? *
A. The plants are eaten by many animals.
B. Dead leaves settle to the bottom.
C. The soils dry out.
D. The lake is filled with sediment.
Answers
Answer: A. The plants are eaten by many animals.
Explanation:
What's a node on a cladogram?
Answers
Answer:
The node therefore represents the end of the ancestral taxon and the stems , the species that split from the ancestor. The two taxa that split from the node are called sister taxa.
Explanation:
Answer:
A n0de corresponds to a hypothetical ancestor. A terminal node is the hypothetical last common ancestral interbreeding population of the taxon labeled at a tip of the cladogram. ... Each internal n0de is also at the base of a clade, which includes the common ancestral population (node) plus all its
Explanation:
decendants
Discuss the relationship between mitosis and cytokinesis. what would be the result if one happened without the other ?
Answers
hi can someone help me with question 1.5 thanks
Answers
what is earth
please help me
Answers
Earth is a beautiful planet that revolves around a star called Sun, which is located in one of the arms of our Milky Way Galaxy. It is the only planet known to support life in the Solar System. Humans are the most intelligent civilization on this planet. It's blue when seen from space. Recently, Earth 29 spacecraft was able to land on this planet, after 28 unsuccessful landings of Earth series of spacecrafts. We were able to learn many things about humans, most important of these was the most spoken language of them, which they call English. According to experts, humans are not yet ready to know about our existence. It can take about 1 or 2 more centuries, until they are ready to know about us.
3. Which type of fossilization occurs when a sticky substance from plants captures and preserves an organism?
Permineralization
Mold
Fossil Resin
Tar
Answers
Answer:
Fossil Resin
Explanation:
The type of fossilization that occurs when a sticky substance from plants captures and preserves an organism is Fossil Resin.
Fossil resins are usually trapped in the resin that some trees and plants including amber, copal, and retinite exude.
Amber is also a fossil resin. Under the right conditions, resins polymerize and turn into copal. Copal matures into amber after several million years.
Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.
Answers
Answer: A)
Explanation:
Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.
Explain TWO reasons why it is important to develop alternatives to fossil fuel
energy sources,
Answers
2. They are not an unlimited resource and could run out at any minute. If they run out and we don’t have an alternative, we could be in a world of hurt.
Elements such as carbon can move through the
environment and organisms in a cycle because
living and nonliving things interact in _______.
A. cells
B. species
C. organisms
D. ecosystems
Answers
Elements such as carbon can move through the environment and organisms in a cycle because living and nonliving things interact in ecosystem. The correct option is D.
What is an ecosystem?An ecosystem is made up of all the organisms and the physical environment in which they live.
These biotic and abiotic elements are linked by nutrient cycles and energy flows. Photosynthesis introduces energy into the system, which is then incorporated into plant tissue.
Healthy ecosystems clean even our own water, purify our air, keep our soil in good condition, regulate the climate, recycle nutrients, and provide us with food.
They supply raw materials and resources for pharmaceuticals and other uses. They are the foundation of all civilization and the lifeblood of our economies.
Because living and nonliving things interact in an ecosystem, elements such as carbon can move through the environment and organisms in a cycle.
Thus, the correct option is D.
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Which layers plays the greatest role in the movement of plate tectonics?
A) outer core
B) mantle
C) crust
D) inner core
Answers
Where does the fetus normally develop?
Answers
Answer:
in the womb !!
Explanation:
hAve a good night
Answer:
Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.
A hurricane passes through the Gulf of Mexico and destroys many of the coastal regions of Northwest Florida. Which of the following is a likely impact of this catastrophic event on biodiversity?
Group of answer choices
Species brought in by the storm surge will displace species native to the coastal wetlands.
Excessive salt from the storm surge will flood coastal wetlands and raise salinity to intolerant levels for the local species, causing a decrease in biodiversity
Coastal wetlands will grow exponentially with the input of nutrients from storm upwelling and biodiversity will increase in these areas.
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of habitat.
Answers
Answer:
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of habitat.
Explanation:
A hurricane destroys many coastal regions of Northwest Florida which leads to the loss of habitat of many species that lives on the coastal region of Northwest Florida. This hurricane destroy the habitat that leads to decrease in population of organisms that lives in that coastal region so we can conclude that the population of organisms decreases due to this hurricane.
Match the description with the corresponding fruit part.
1. the innermost protect layer around a fruit seed such as the shell of a peach pit
2. all the layers surrounding the seed of a fruit
3. the middle protective layer of a fruit seed; often the flavorful flesh
4. the outermost skin of a fruit
a. endocarp
b. pericarp
c. epicarp
d. mesocarp
Answers
Answer:edg
Explanation:
endocarp- the inner most protect
layer around fruit seed
pericarp- all the layers surrounding
mesocarp- the middle protective layer of fruit seed
epicarp- the outermost skin
3 Explain the concept individuality in relationships and provide TWO examples.
Answers
Answer:
Individualism is the moral stance, political philosophy, ideology and social outlook that emphasizes the moral worth of the individual. Individualists promote the exercise of one's goals and desires and so value independence and self-reliance and advocate that interests of the individual should achieve precedence over the state or a social group while opposing external interference upon one's ...