Question:What are the different types of covalent bonds? Explain the characteristics of each, and how these types of bonds form.
answer:
Covalent bonds include single, double, and triple bonds and are composed of sigma and pi bonding interactions where 2, 4, or 6 electrons are shared respectively. Covalent compounds typically have lower melting and boiling points than ionic compounds. i hope this helps you i wish you a grate weekend and thanks giving
Ventricles _____.
pump blood to the lungs and body
receive blood through the superior vena cava
receive blood through the inferior vena cava
are located in the top half of the heart
Answer:
I want to say pump blood to the lungs and body
Explanation:
At the end of which era did the dinosaurs became extinct?
1. Mesozoic
2. Paleozoic
3. Jurassic
4. Cenozoic
The Mesozoic era should be the correct answer
Answer:
the answer should b cenozoic
Both mixtures and compounds are made of two or more different substances mixed together. So
which of the following is an accurate statement about the difference between the two?
a- generally speaking compounds are easier to separate than mixtures
b- compounds are mixed physically but not chemically
c- a mixture is two or more substances mixed physically but not chemically
d- mixtures are pure substances while compounds are not
Answer:
c- a mixture is two or more substances mixed physically but not chemically
Explanation:
In chemistry, a mixture and a compound is made up of two or more different substances that combines together, however, the difference between the two is in the way the combination occurs. Compounds are pure substances formed as a result of the chemical combination of two or more elements. The atoms of the elements in a compound are chemically bonded together in such a way that they cannot be separated.
On the other hand, mixtures are substances composed of two or more substances of different properties that are combined physically i.e. there is no chemical bonding between them, hence, components of a mixture can easily be separated using physical methods like boiling, melting, etc dependent on the individual properties of the components.
can an organism's adaptation to its habitat become a negative option? How?
Answer:
In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role in each individual organism, that is maintained and has evolved through natural selection. Historically, adaptation has been described from the time of the ancient Greek philosophers such as Empedocles and Aristotle. In 18th and 19th century natural theology, adaptation was taken as evidence for the existence of a deity. Charles Darwin proposed instead that it was explained by natural selection. Adaptation is related to biological fitness, which governs the rate of evolution as measured by change in gene frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the other species, such as with flowering plants and pollinating insects. In mimicry, species evolve to resemble other species; in Müllerian mimicry this is a mutually beneficial co-evolution as each of a group of strongly defended species (such as wasps able to sting) come to advertise their defenses in the same way. Features evolved for one purpose may be co-opted for a different one, as when the insulating feathers of dinosaurs were co-opted for bird flight. Adaptation is a major topic in the philosophy of biology, as it concerns function and purpose (teleology). Some biologists try to avoid terms which imply purpose in adaptation, not least because it suggests a deity's intentions, but others note that adaptation is necessarily purposeful.
Explanation:
Hope this halps.
(Please answer within 30-35 minutes)
(Meant to pick a different subject)
The chemistry café cook has a loaf which had 33 slices and a package of cheese that has 15 slices. he is making sandwiches that have 2 pieces of both breed and cheese. how many sandwiches can he make?
Answer:
Explanation:
so
2 breads + 2 cheeses ⇒ 1 sandwich
if we use two slices of bread each time how many sandwich can we make with 33 slices
33/2 =16.5 sandwiches
if we use two pieces of cheese in each sandwiches how many sandwiches can we make with 15 slices ?
15/2 =7.5 sandwiches
the cheese her will run out first and we would have excess bread
so we would only be able to make 7.5 sandwiches without running out of ant ingredient :)
From the calculations, we can see that the producer can make about 12 sandwiches.
Bread and cheeseIn the question, we are told that there are;
a loaf which had 33 slicesa package of cheese that has 15 slicesWe also know from the question that he is making sandwiches that have 2 pieces of both breed and cheese.
Hence; total number of bread and chese = 33 + 15. Each bread must contain two pieces of each of the bread and chees making a total of four pieces. He can therefore make; 33 + 15/4 = 12 sandwiches.
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What is the genotype of a blonde child ?
A?
b?
c?
d?
Answer:
bb
Explanation:
Because blonde hair is recessive, the only way for blonde hair to show in a child is if they have both recessive alleles.
a b c. d ? help please ?
Answer:
A
Explanation:
eukaryotic cells have these little "stuff doing factories" called ....
Answer:
organelles
Explanation:
Answer:
Answer
Explanation:
I'm taking a shot in the dark, but I think these "stuff doing factories" are organelles.
In which stage of mitosis do nuclei reform around each set of sister chromatids?
Answer:
metaphase
Explanation:
Sister chromatids line up at the metaphase plate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the cohesin proteins. Sister chromatids line up at the metaphase plate.
what are the cells that Make up testis (2-3 sentences would he appreciated)
Answer:The testes contain germ cells that differentiate into mature spermatozoa, supporting cells called Sertoli cells, and testosterone-producing cells called Leydig (interstitial) cells.
Explanation:
Answer:
the testis make sperm and male hormones. The 2 main types of cells in the testis that perform these functions are gem cells and stromal cells
Select all that apply.
Two factors that make it difficult for people to retain a sense of nationalism are _____.
immigration
geography
globalization
politics
Answer:
politics,imigration
Explanation:
welcome
Why are endocytosis and exocytosis kinds of active transport?
Explanation: During endocytosis (endo means inside) a cell will use its cell membrane to engulf an object which is outside of the cell. This process takes effort by the cell, so it needs to use energy (ATP!) The process which is the reverse of endocytosis is exocytosis (exo means outside - think exit).
Answer:
Endocytosis and exocytosis are active transport mechanisms in which large molecules enter and leave the cell inside vesicles. In endocytosis, a substance or particle from outside the cell is engulfed by the cell membrane. The membrane folds over the substance and it becomes completely enclosed by the membrane.
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The presence or absence of
provides evidence that a specimen is a living thing.
atoms?
molecules?
cells?
Answer:
presence of cells
Explanation:
All living things are composed of cells. A cell can be defined as a complex biological arrangement that has all the structures and materials required for life. Cells carry out specialized functions such as, for example, metabolic functions to convert nutrients from food into energy (ATP), and reproduce by mitosis and/or meiosis. Thus, the cell is known to be the basic unit of life.
Which is a transportation technology?
O A Internet
OB Fertilizer
OC Airplane
OD. Irrigation
Answer:
C. airplane
Explanation:
Which action would most likely increase the rate of an enzyme-controlled reaction during an experiment on human enzymes? 1 point raising the temperature from 20C to body temperature decreasing the intensity of light raising the temperature from 50C to 100C decreasing the amount of enzyme
Answer:
Raising the temperature from 20c to body temperature
Explanation:
The increase in temperature will give the particles more thermo energy therefore it will increase the rate of an enzyme-controlled reaction
Explain the process of DNA Replication in details
When will DNA replication occur?
(They don’t have to be too long just long kinda lol)
Answer:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
In the eukaryotic cell cycle, chromosome duplication occurs during "S phase" (the phase of DNA synthesis) and chromosome segregation occurs during "M phase" (the mitosis phase).
Explanation:
What macromolecule stores genetic information for an organism?
The macromolecule that stores genetic information for an organism is - Nucleic acids.
Nucleic acids are macromolecules made up of the monomers called nucleotide that store, transmit, and express hereditary information. This information is coded in the sequences of monomers that make up nucleic acids.
There are two types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).DNA stores and transmits genetic information.RNA present in certain plant and animal viruses is used for transmission of genetic information from one organism to anotherThe arrangement of different nucleotides codes for the different protein productThus, The macromolecule that stores genetic information for an organism is - Nucleic acids.
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Which region is located between 60-90N and 60-90S?
Mid-Lats
Polar
Tropics
Tropical Rainforest
Answer:
Polar
Explanation:
The region located between 60 - 90N and 60 - 90S.
The poles are regions north or south of the equator high above the temperate zone.
The tropics are found straddling the equatorial regions. The polar regions are notable for their coldness and ice caps. Some of these regions receives diffused sunlight. They do not receive direct insolation.I will give Brainlyest yo the correct answer
Answer:
1. chemical to light
2. sunlight to chemical
3. wind to mechanical
4. chemical to light and heat
Explanation:
Give an example of a natural resource
Answer:
Any natural substance that humans use can be considered a natural resource. Oil, coal, natural gas, metals, stone and sand are natural resources. Other natural resources are air, sunlight, soil and water. Animals, birds, fish and plants are natural resources as well.
Explanation:
hope it helps
WILL GIVE BRAINLY.
Answer:
Number 3 is the answer
Explanation:
Answer:
The last one
Explanation:
I think
TOPO MAP ! 15 points and brainlest !
Answer:
1. 760
2.720
3.880
4. the difference is 160
5.120
6.193
Explanation:
HELP I NEED THIS ASAP PLEASE!!
Which statement best describes the basic process of photosynthesis?
a. Chemical energy is transformed into light energy and oxygen is released.
b. Light energy is transformed into chemical energy and oxygen is released.
c. Light energy is transformed into chemical energy and carbon dioxide is released.
d. Chemical energy is transformed into light energy and carbon dioxide is released.
Answer:
b. Light energy is transformed into chemical energy and oxygen is released.
Explanation:
Photosynthesis is a process in which light energy from sun is transformed into chemical energy and oxygen is released. Therefore, option (B) is correct.
What is Photosynthesis ?The chloroplast organelle of plant cells is where the process of photosynthesis takes place. The thylakoid membrane of the chloroplast is where the normal light response of photosynthesis takes place. Water and carbon dioxide, two of the main reactants, take part in the process. In the process of the reaction, the water is oxidized, producing oxygen as a byproduct. Carbon dioxide is reduced.
In essence, the chloroplast's chlorophyll pigment transports the electron and hydrogen from water to the acceptor known as NADP+ when it absorbs light.
Hence, light energy is transformed. Option (C) is correct.
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Which of the following is the term for a flowering seed plant?
a. Angiosperm
b. Gymnosperm
What is a difference between self-pollination and cross-pollination?
A. Self-pollination leads to the creation of a fruit. Cross-pollination does not.
B. During cross-pollination, ovules are carried from one plant to another plant.. During self-pollination the ovules stay on the same plant.
C. During cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination the pollen and ovules are from the same plant.
D. During cross-pollination, the pollen grains travel from the stigma to the anthers. During self-pollination, the pollen grains travel from the anthers to the stigma.
Answer:
C. During cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination the pollen and ovules are from the same plant.
Answer:
C. During cross-pollination the pollen grains are carried from one plant to another plant. During self-pollination the pollen and ovules are from the same plant.
Explanation:
Explain why plants reproduce sexually as well as asexually in nature?
Answer:
Many plants are able to propagate themselves using asexual reproduction. ... Traditionally, these plants survive well under stable environmental conditions when compared with plants produced from sexual reproduction because they carry genes identical to those of their parents.
Which of the following would be a good question for an interviewee to ask during an interview?
a.
What does this company do?
b.
How much time do you give for breaks?
c.
Do you have a training program for this position?
d.
How long do I have to work before I get a raise?
Answer:
c
Explanation:
clearly
An area defined by environmental conditions and natural features is known as......
O Eco-region
O Ecology
O Succession
O Natural Selection
Answer:
Eco-region
Explanation:
An eco-region, also known as ecozone, is an ecological area defined by environmental conditions and natural features. An eco-region is defined by conditions such as soil type, temperature etc. Eco-regions have features like soil, that defines its boundaries. Eco-regions can be classified into biomes.
Hence, according to this question, an area defined by environmental conditions and natural features is known as ECO-REGION
Which of the following occurs during photosynthesis?
A) CO2 is used to produce water.
B) CO2 is absorbed by Mitochondria
C) CO2 and H2O are converted to carbohydrates
D) CO2 and H2O are combined into carbonic acid.
Answer:
c its the plant making food for itself
name two things that can cause power output to decrease
Answer: A storm or tornado
Explanation:
