1. Calculate the volume occupied by 0.845 mol of nitrogen gas at a pressure of 1.37 atm and a temperature of 315 K *
Answer:
[tex]PV=nRT \\ 1.37 \times V = 0.845 \times 0.083 \times 315 \\ V = 16.125 \: {cm}^{3} [/tex]
Question 3 of 34
Which of the following explains how polar molecules form?
O A. The two atoms in a bond share electrons equally.
B. One atom transfers its electrons to another atom.
O C. Electrons are more attracted to one of the atoms involved in a
bond.
O D. Protons are more attracted to one of the atoms involved in a bond.
Groundwater _____. forms when precipitation seeps into the soil exists above the earth's surface is impossible to pollute is not a usable water source for humans
Answer:forms when precipitation seeps into the soil
Explanation:
Answer:
It's B
Explanation:
I got it correct when I did it on my quiz on oddseyware.
Woolly mammoths are an extinct species of elephant that lived in very cold climates.
They had very small ears.
Compared with the large ears of modern elephants, small ears would have assisted in
survival of the mammoths by
A. Decreasing the core body temperature
B. Increasing the effects of heat conduction
C. Increasing the radiation of heat from the body
D. Decreasing the surface area through which heat is lost
Answer:
The answer is B: Increasing the radiation of heat conduction
Which statement best describes the limits of science?
O A. Science can answer only mathematical questions.
B. Science cannot answer questions about the natural world.
C. Science can answer any question.
D. Science cannot answer questions about what people should do.
Answer:
A
Explanation:
science can answer only mathmatical questions
True or False: Photosynthesis can take place under water.
True
False
Answer:false
\
Explanation:
which player will generate the most FORCE??!!!
Answer:
Nick Boyle as 270 pounds is higher than others!
Explanation:
Answer:
Logan Thomas
Explanation:
Is the chief justice of the supreme court the commander in chief of the military
No , The Chief Justice of the Supreme Court is not the Commander in Chief of the Military .
How did the mass extinction that killed the dinosaurs affect the evolution of mammals?
Answer:
With dinosaurs no longer eating them, mammals made quick evolutionary strides, assuming new forms and lifestyles and taking over ecological niches vacated by extinct competitors. ... Sixteen mammal species were discovered, with skulls and other bones fossilized after being buried in rivers and floodplains.
Explanation:
According the cell theory, can you create a cell by combining molecules in a laboratory?
Answer:
only if you have the materials
Explanation:
cells are generated from duplicating, so you'd have to have every single part that made up a cell and put it together which would require microscopic precision
what helps redistribute the earths heat
1. wind
2. clouds
3. sun
it may be the wind (i'm not sure)
Positive feedback
A)bring the change back to normal
B)brings the change further away from the normal
Answer:
B)
Explanation:
"Positive feedback encourages and intensifies a change in the body's physiological condition, driving it farther out if the normal range."
which option is better and why?
Answer:
b
Explanation:
Plants and animals are multicellular organisms made of organ systems that work together to maintain homeostasis. Body systems
are made of organs and organs are composed of tissue. Tissues are groups of cells that work together to perform functions.
Examine each of the examples below. Which of these are organs found in plants or animals? Select ALL that apply.
A
A
)
epithelial
B)
eye
leaf
D)
stem
vascular
The organs found in plants or animals is stem vascular. Therefore, option (D) is correct.
What are the features of the stem vascular?A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, stores nutrients.
The vascular system of plants, complete with xylem and phloem, fills both purposes. Stems, along with roots, also store food for the plant. Pith, a tissue that lies in the center of the stem.
A vascular bundle is a part of the transport system in vascular plants. The transport itself happens in the stem, which exists in two forms: xylem and phloem.
Learn more about stem vascular:
https://brainly.com/question/12889528
#SPJ2
which best explains a system
A structure that carries out a specific function
B group of organs that carry out different function
Croup of organs that work together to carry out a specific function
D way that organism operate
Answer:
C
Explanation:
Group of organs that work together to carry out a specific function - > Organ system
What are the organelles that a plant cell has that is different than the animal cell? Explain each one
Explanation:
A plant cell has cell wall which is otherwise absent in animal cell
cel wall is a freely permeable membrane which allows the entry of all substances . cell wall basically gives rigidity to the cell and protects the cell .
Hope this helps you dear :)
Which is a reason why wetlands are important?
O They move water to higher ground during flooding.
O They filter pollutants out of water.
O They are estuaries.
O They provide minerals.
Answer:
They are estuaries
Explanation:
what branch of biology deals with the study of herdity amd variation
Answer:
Genetics.
Explanation:
Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.
Select the correct answer.
Which adaptive management stage helps us understand what objectives are actually met?
ОА
design
OB.
monitor
Oc. .
implement
OD. adjust
OE
evaluate
To obtain the atomic weight in an atom, add the:
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons. Example: Find the atomic mass of an isotope of carbon that has 7 neutrons
Which of the following would be an accurate food chain that could be found in the
tropical community?
A) cougar --> turtle --> banana
B) insect --> frog --> ocelot --> parrot
C) fruit --> turtle --> cougar
D) vegetable --> insect --> mushroom
Answer: B
Explanation:
The animals that live in tropical areas are in option B. Cougars can not live in the tropics, they live in the cold biomes. In the tropics, there are many insects, and frogs eat them. Ocelots eat the frogs, and the ocelots are eaten by parrots. The rest of the options are valid food chains, but they would not function in the area of tropics. The answer to the question is option B.
Acid precipitation may change lakes by a. making phosphorus more available to plants, thereby increasing productivity. b. making nitrogen more available to plants, thereby increasing productivity. increasing populations of nitrogen-fixing microorganisms. . accelerating the carbon cycle within lakes. causing the local extinction of species that cannot tolerate
Answer:
causing the local extinction of species that cannot tolerate.
Explanation:
Acid precipitation may change lakes by causing the extinction of local species that cannot tolerate the acidity of the water. The acid precipitation damaged the skin of the aquatic organism as well as internal body structure of various organisms. Acidic nature of water is not good for all organisms except some resistance organisms due to their adaptability so we can conclude that extinction of species occur that has no resistance.
the bases are paired by____ bonds along the axis of the molecule
Answer:
The bases are paired by hydrogen bonds along the axis of the molecule.
Explanation:
this is the correct answer!!
anseer
Explanation:
hydregon is the answer
What things do plants use to get food matter?
HELP ASAP
Answer:
water and sunlight (for sure)
Answer:
Plants are called producers because they make their own food
Explanation:
Plants use minerals and water from the ground and their leaves absorb Carbon Dioxide (CO2) from the air.They convert these into food by using sunlight
Hope this Helped :)
Sickle cell anaemia is an inherited autosomal recessive
condition caused by a mutation in the haemoglobin
subunit beta (HBB) gene. A male and female who are
phenotypically normal, discover through genetic testing
that they are both carriers of a HBB mutant allele. What is
the probability that their first child will be biologically
female and phenotypically normal?
Answer:
1/8 (12.5%)
Explanation:
An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene locus to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).
- Parental cross for sickle cell anaemia trait = Hh x Hh >>
- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>
- Sex proportion of sickle cell anaemia individuals = 1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)
What impact did Jefferson’s Louisiana Purchase have on the nation?
what is genetics in animals
Answer:
NO HAÁAAAAAAAAAAAAAAAAAAAAAAAAAA
The cell membrane is described as being fluid because:
A. the phosphate groups move between fatty acids.
B. the membrane lets materials pass through it.
C. the fatty acid chains are inside it.
O D. the phospholipids move from side to side.
Answer:
D
Explanation:
The fluid mosaic model got its name because the plasma membrane resembles a mosaic formed by proteins embedded in a fluid of lipids. ... In the fluid mosaic model, the plasma membrane is basically composed of a lipid bilayer in which proteins are inserted.
The photos below show plant cells that are specialized for performing
photosynthesis.
Which part of these plant cells carries out this function?
A. Cell wall
B. Chloroplast
C. Cell membrane
D. Cytoplasm
Which statement best compares momentum and kinetic energy
Answer:
Momentum is a vector quantity and kinetic energy is a scalar quantity.
Explanation:
