to complete the outer shell it needs -3 additional electrons
In animals sexual reproduction requires
Answer:
The placement of sperm within female's reproductive track.
Explanation:
In animals, sexual reproduction requires sperm of male has to be placed in the reproductive track of female where eggs are present. The sperm of male fuse with eggs of female produces zygote which turns into an offspring. The sperm of male and egg of female are haploid in nature means having half number of chromosomes but when they fused together then the zygote which is formed is diploid i.e. double number of chromosomes. The gametes are formed through meiosis not mitosis. Mitosis cell division occur in body cells.
what is the relation between chromatin ,dna,gene,chromosome?pls answer in simple words
Answer:
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material between
Chemicals and hazardous substances controlled by the Toxic Substances Control Act (TSCA) include all of the following except _____.
polychlorinated biphenyls
bisphenate
radon
asbestos
Answer:
Chemicals and hazardous substances controlled by the Toxic Substances Control Act (TSCA) include all of the following except
bisphenate.
Chemicals and hazardous substances controlled by the Toxic Substances Control Act (TSCA) include all of the following except _____.
polychlorinated biphenyls
bisphenate✓
There are 6 chemical substances which are controlled by TSCA and bisphenate isn't one of them. It's use to manufacture hard core plasticradon
asbestos
How a terrestrial reptile will regulate body temperature if it is placed in a habitat that is extremely dry with the temperature of 55C
True or False. Only animals have adaptations that better allow them to survive and reproduce, flowers do not.
Answer:
false
Explanation:
What is the primary purpose of special-interest groups?
O A. To determine a person's social status
O B. To control the means of production
C. To teach people how to take care of themselves
D. To influence political decisions
Answer:
The answer is D. To influence political decisions
Explanation:
Paragraph
1
-C
B 6
А A
-D
6
Answer:
A :-):-):-)
Explanation:
Hope this helps:-)
What is the original biosphere, sometimes referred to as Blosphere 1?
O
a greenhouse on the Mir space station
the planet Earth
a sealed environment in Arizona
the human body
Answer:
The correct answer is - the planet Earth.
Explanation:
Biosphere 2 is the second self-sufficient biosphere that is a research center of America that is built to study, teach and research the purpose of the earth and its biosphere. It is termed biosphere 2 because the original biosphere is the primary biosphere that self-sufficient which is called biosphere 1.
Biosphere 1 is changed altered so much since it formed in various manners including the hydrosphere, atmosphere and different matter cycles.
In what ecosystem have many organisms adapted to a changing salt content in the water?
A. intertidal area
B. estuary
C. swamp
D. salt marsh
Answer:
intertidal area
Explanation:
Answer:
most likely a salt marsh
Explanation:
The simplest nervous systems are called....
The simplest nervous systems are called [tex]\sf\purple{nerve \:nets}[/tex].
More:-This type of nervous system is found in [tex]\sf\red{hydras}[/tex] and [tex]\sf\blue{jellyfish}[/tex] (cnidarians).Nerve nets do not have a distinct central or peripheral regions, and lack anything that resembles a brain.[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
what seven elements have the appearance and properties of a metal but behave like the non-metal in certain situations?
Answer:
i. boron
ii. silicon
iii. germanium
iv. arsenic
v. antimony
vi. tellurium
vii. polonium
Explanation:
Elements that have appearance and properties of a metal but behave like non-metal in certain conditions are called semi-metals or metalloids. On the periodic table, they are found between metals and non-metals. Examples are astatine, polonium, tellurium, antimony, arsenic, germanium, silicon, boron.
Some of their properties that make them look like metals are:
i. They exist as solids at room temperature.
ii. They are shiny.
iii. They are ductile.
Some of their properties that make them look like non-metals are:
i. They are brittle.
ii. Not very good conductor of electricity compared to metals.
The seven elements have the appearance and properties of metal but behave like non-metal in certain situations.
I. boron
ii. silicon
iii. germanium
iv. arsenic
v. antimony
vi. tellurium
vii. polonium
Elements which have look and residences of a steel however behave like non-steel in sure situations are referred to as semi-metals or metalloids. On the periodic table, they're determined among metals and non-metals. Examples are astatine, polonium, tellurium, antimony,arsenic, germanium, silicon, and boron.
Some in their residences that cause them to seem like metals are:
i. They exist as solids at room temperature.
ii. They are shiny.
iii. They are ductile.
Some in their residences that cause them to seem like non-metals are:
i. They are brittle.
ii. Not an excellent conductor of strength in comparison to metals.
What are metals?
Metals are opaque, lustrous factors that might be the right conductors of warmth and electricity. Most metals are malleable and ductile and are, in general, denser than the opposite elemental substances.
Thus it is clear that the above answers are well explained.
To learn more about the elements refer to the link :
https://brainly.com/question/6258301
What percentage of the global population lives in the United States?
Answer: 4.25%
Explanation:
As at Friday, May 28, 2021, the population of the United States of America is about 332,754,370. The population of the world is about 7,868,904,000.
Therefore, the percentage of the global population lives in the United States is about 4.25% that's 332,754,370/7,868,904,000 × 100%.
What kingdom is made of organisms that are eukaryotic, plant-like, do not move, and do not carry on photosynthesis?
Answer: Fungi
Explanation: It just is
Answer:
Fungi
Explanation:
Many diverse organisms including algae, amoebas, ciliates (such as paramecium) fit the general moniker of protist. "The simplest definition is that protists are all the eukaryotic organisms that are not animals, plants or fungi," said Alastair Simpson, a professor in the department of biology at Dalhousie University.
What is the hallmark of a chemical change?
what makes a good scientific argument?
Answer:
the claim (or the explanation), the evidence (or the observations), and the rationale (or the reasoning). Reasoning that explains the evidence and why it supports the claim.
Explanation:
Hope this helps!
Answer:
Breaking their Theory and throwing liquid chemicals at their shirt and they get fired
Explanation:
6
Which two particles would be attracted to each other?
Oo oo
electrons and neutrons
electrons and protons
protons and neutrons
all particles are attracted to each other
Answer:
Electrons and Protons are two particles would be attracted to each other.
Explain incomplete dominance, using snapdragon
flowers as an example.
Answer:
Dominant allele does not completely conceal recessive allele.
Snapdragon with genotype Rr (R being red and r being white), would have a phenotype of pink flowers.
Explanation:
Incomplete dominance is where a dominant allele is not able to completely conceal a recessive allele, usually leading to a phenotype which appears to be a combination of the two.
For example, in snapdragons:
The allele for red flowers (R) is dominant over the allele for white flowers (r). Let's say a snapdragon flower had the genotype Rr, one allele for red flowers and one for white. In the case of 'normal' dominance the dominant red flower allele (R) would mask the effects of the recessive white flower allele (r), resulting in the phenotype (outward observable characteristics) of having red flowers.
However here in the case of incomplete dominance, the dominant allele would not be able to fully cover up the effects of the white flower allele, meaning that both colors (red and white) are expressed in the phenotype, resulting in pink flowers.
Hope this helped!
Answer:
Incomplete dominance is seen in offspring that have a third phenotype not seen in the parents. Snapdragons are an example. The third phenotype results when a snapdragon with the red pigment protein crosses with a snapdragon with a defective gene that produces no pigment, resulting in a white snapdragon. The offspring receive one allele from each parent, resulting in half the amount of pigmentation for red color being expressed. The offspring will be pink snapdragons instead of red or white.
Explanation:
Sample response :)
Earthquakes occur when:
A.the earth's plates rub against each other
B.magma squeezes through cracks in the crust
C.eroded sediment is carried away
D.heat and pressure build up under the surface
Answer:
B: magma squeezes through crcks in the crust
Explanation:
Lava (magma that has erupted onto the Earth's surface) is visually mesmerizing – as the molten rock flows downhill, lava exposed to the air cools to a deep black color, while the molten rock beneath glows bright orange.
im not sure ha but ok nadin yan
CFCs are safe on Earth's surface but become very destructive to ozone when exposed to UV
light in the upper ----------? Upper what
Answer:
CFCs are broken down by UV photolysis, but the process takes a long time since it takes decades to cycle all of the air in the troposphere through the upper stratosphere. ... The photolysis of CFCs generates a highly reactive chlorine atom that can attack ozone or form compounds that destroy ozone. upper stratosphere should be your answer
How is Earth’s outer layer similar to a cracked hard-boiled egg?
Answer:
They're similar because both Earth's layer and a cracked hard boiled egg have a thin brittle shell.
Explanation:
Describe the preservation principle of salting
Salting, especially of meat, is an ancient preservation technique. The salt draws out moisture and creates an environment inhospitable to bacteria. If salted in cold weather (so that the meat does not spoil while the salt has time to take effect), salted meat can last for years.☜(ﾟヮﾟ☜) (⌐■_■)
How are Photosynthesis and Cellular Respiration Cycles connected?
1)The products of one cycle become the reactants of the other.
2)The sun provides energy for both photosynthesis and respiration.
3)Photosynthesis and respiration both take place in the mitochondria.
4)Animals eat plants for food and then do not need to perform respiration
Two protein kinases, PK1 and PK2, work sequentially in an intracellular signaling pathway. You create cells that contain inactivating mutations in the genes that encode either PK1 or PK2 and find that these cells no longer respond to a particular extracellular signal. You also create cells containing a version of PK1 that is permanently active and find that the cells behave as though they are receiving the signal even when the signal is not present. When you introduce the permanently active version of PK1 into cells that have an inactivating mutation in PK2, you find that these cells also behave as though they are receiving the signal even when no signal is present.
Answer the following question in the space give.
A. From these results, does PK1 activate PK2, or does PK2 activate PK1? Explain your answer.
Answer:
The answer is "PK1 activates PK2"
Explanation:
All enzymes were required again for the transmission of a signal. If Pk1 is continuously active, pk2 will no longer be required, as per my theory, can trigger pk1, therefore the cells were if they amplify the message even when they're not active. But since both enzymes require regular copies together for transduction, pk2 is simple and pk1 requires to also be activated.
The characteristic of light waves that makes objects appear bent when placed in water is called
A.Reflection
B.interference
C.bending
D.refraction
Answer:
D: Refraction
Explanation:
A: Reflection is not when light goes through water. C: Bending is not the correct term used.
Can intersex male get their partners pregant?
Answer:
yes
Explanation:
they can produce sperm
Will give brainliest
In the producers pool, in which molecule is the carbon found
Answer:
Carbon is found in almost everything so I would assume a lot
Explanation:
Btw I dont know what the producers pool is
If you do not know the answer than do not answer. You don’t have to answer all of the questions just answer the ones you know. Will give brainliest if you help.
Answer:
a,f,d,i,c
Explanation:
A ______ is anything in the environment that affects the behavior of an organism.
tropism
hormone
stomata
stimulus
Answer: stimulus
Explanation:
A stimulus is anything in the environment that affects the behavior of an organism.
A stimulus is anything in the environment that affects the behavior of an organism.
In an effort to maintain homeostasis, the organ systems of the human body work to keep the body's internal water level constant. Which of the following statements describe how the human body responds when its internal water level drops too low?
(I’ll give brainliest)
A. The skeletal system produces more circulating blood cells that insecure the body’s water intake
B. The excretory system signals the kidneys to retain more water and produce more concentrated urine to decrease water loss.
C. The nervous system signals the muscles to constrict , holding more water in the digestive track and decreasing water loss .
D.The excretory system signals the kidneys to release more water into the bladder to increase water loss .
Answer:
B.
Explanation:
When we are dehydrated, our urine tends to be more yellow, right? That's because our urine contained less water to dilute the chemical compounds causing the yellow color — when we're dehydrated, our kidneys decide to pull less water out of the bloodstream than normal.
Which of the following conditions is an X-linked disorder?
A.
cystic fibrosis
B.
color blindness
C.
variegation
D.
Down syndrome
E.
sickle cell anemia
Answer:
THE ANSWER IS B I THINK
Explanation:
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