Which two substances are among the six most abundant elements in living things?
A. Calcium
B. Nitrogen
C. Helium
D. Chlorine
Answer:
the answer is B. Nitrogen
Explanation:
The six most common elements in living things are carbon, hydrogen, oxygen, Nitrogen, phosphorus, and sulfur.
It is generally acknowledged that as human beings age, it becomes more difficult for them to lose weight, or even maintain their current weight. People find they have to eat less and/or exercise more to maintain a healthy weight.
Which is the most likely explanation of why weight loss/maintenance becomes more difficult as people age?
a). As humans age, they becomes less active and use their muscles less; therefore, less chemical energy is converted to thermal energy.
b). As humans age, the process of extracting energy from the food becomes less efficient, so more food is needed to provide the same amount of energy.
c). As humans age, they become injured more often and need to increase the amount of food they eat to make repairs to body tissue.
d). As humans age, the body does not convert chemical to thermal energy, so they do no burn off any calories when exercising.
Please hurry!
Answer:D
Explanation:
Answer: is d
Explanation:
Two students want to go on a night hike when there is a full moon In July. July Sun. Mon. Tues. Wed. Thurs. Sat. 4 S 7 9 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 If there is a third-quarter moon on July 2, what is the approximate date of the next full moon? (8.7B) O July 9 July 16 0 July 23 0 July 30 1 2
The approximate date of the next full moon is to be considered as the July 23.
Calculation of the approximate date of the next full moon:Since two students want to go on a night hike so there should be full moon in July.
So if there is any third quarter moon on July 2
So here the date should be July 23 since it takes 21 days for the third quarter moon to get to a full moon.
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During a schoolyard survey, students observe a litter of baby rabbits with brown and white offspring. Explain how it is possible for two brown furred rabbits to have a white furred offspring. Use evidence to support your answer.
help asap
Answer:
Its a recessive gene
Explanation:
It was passed down by their grandparents, or great grandparents
The two brown furred rabbits can produce white furred offspring if both parent stocks are heterogenous brown rabbits (Bb x Bb).
[tex]\frac{1}{4}[/tex] or 25% of the offspring will be white furred (bb) as shown in cross done with a Punnett Square (see attachment below for evidence).Recall:
A recessive trait will be expressed in an offspring if two copies of the recessive genes for a trait are present in the offspring.Let's assume the gene for brown fur is dominant over the gene for white fur.
Using B to represent gene for brown furb to present gene for white furTherefore, the two brown furred rabbits can produce white furred offspring if both parent stocks are heterogenous brown rabbits (Bb x Bb).
[tex]\frac{1}{4}[/tex] or 25% of the offspring will be white furred (bb) as shown in cross done with a Punnett Square (see attachment below for evidence).
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1. Fill in the Punnett Square, showing the kinds of offspring (male or female) that are possible.
2. What is the genotype ratio for male and female offspring? __________
3. Is it more likely, less likely, or equally likely to produce boys instead of girls? ________
Answer:
Explanation:
y
8. What is the difference between a unicellular organism and a multicellular organism?
Explanation:
unicellular organism are single celled organisms and usually cab not be seen by our naked eyes. Example:yeast, microscopic algae, bacteria and more
multicellular organisms are organisms that have two or more cells. Example plants, animals
Please help me it’s overdue by a week
What is a boundary between two air masses of different density, moisture, or
temperature?
Answer Choices:
O Station model
O Low pressure
O Front
O High pressure
Answer:
the front
Explanation:
think of storms or rain you look for Sharp temperature changes over a relatively short distance.
Change in moisture content.
Rapid shifts in wind direction.
Pressure changes.
Clouds and precipitation patterns.
and people on the weather channel usually talk about cold or warm fronts
Which group of plants lacks true roots, stems, and leaves?
A seedless vascular plants
B nonvascular plants
C nonflowering seed plants
D flowering plants
This quetion is from edgenutiy
The nonvascular plants are the group of plants that lacks true roots, stems, and leaves. The correct option is B.
What are non-vascular plants?Plants lacking a circulatory system made up of xylem and phloem are referred to as non-vascular plants.
They may instead have more basic tissues with tailored capabilities for the internal transfer of water.
Mosses, hornworts, and liverworts are examples of nonvascular plants. They don't have leaves, stems, or roots.
Nonvascular plants require a damp environment, are low-growing, and reproduce using spores.
The primary distinction between vascular and nonvascular plants is that the former have a vascular system for the transportation of food and water, whilst the latter lack circulatory tissues.
The majority of liverworts are quite rare in the park and need to be close to water to survive. Mosses and liverworts are tiny, non-vascular, primitive plants.
Thus, the correct option is B.
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How many total atoms are in the following compound?
2K2CO3
Answer:
There is 3 because K2 is its own atom and it has 2 K2 and Co3 is its own and there's one
Explanation:
This is what I was taught
telescope that gathers information in almost any weather during any time of the day?
What is the primary function of this body system?
The brain, together with the neurological system that connects to it, is the most important organ system in the human body, even though your heart is also a key organ.
What is the role of body system?Blood containing oxygen is delivered to your bones via your circulatory system.
Your bones are actively creating new blood cells in the interim. Together, these mechanisms preserve internal equilibrium and stability, or “homeostasis.”
The body's action and functionality are controlled by the neurological and endocrine systems.
The respiratory, circulatory, and digestive systems team up to eliminate waste from the body while simultaneously taking in essential nutrients and substances.
Therefore, connecting and supporting is primary function of body system.
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PLEASE HELP !!!
The following are the results of a cross between two pea plants where the dominant allele is round seeds and the recessive allele is wrinkled seeds: RR, RR, Rr, rr
What is the probability that the offspring of this cross has two dominant alleles?
0%
25%
50%
75%
100%
Explanation: it's 0% I hope this this helped!
An astronomer wants to analyze the composition of a distant star. What is the best tool the astronomer can use?
Answer:
Spectograph
Explanation:
The most common method astronomers use to determine the composition of stars, planets and other objects is spectroscopy.
Which term refers to the ability of a substance to be hammered or rolled into sheets?
malleability
luster
ductility
conductivity
Answer:
malleability
Explanation:
the last two are relating to elelectricity and luster isnt something that can be hammered
Living organisms are made up of cells. Cells are organized at different levels to form very complex living organisms like your body. Each level has a specific role or job to perform.
Which of the following lists these levels in the correct order of organization from the simplest to the most complex?
Cells, tissues, organs, organ systems, organisms
⊝
Organisms, organ systems, organs, tissues, cells
⊝
Tissues, cells, organs, organisms, organ systems
⊝
Organs, organ systems, organisms, cells, tissues
Which graph best represents the information in the table?
1: Graph A
2: Graph B
3: Graph C
The ____ is the source of all energy in our atmosphere. a. Sun c. Moon b. water cycle d. Coriolis effect
Answer:
Sun
Explanation:
Answer:
the sun
Explanation:
no comment
There are several kinds of objects moving around in space that might hit the Moon: comets, _________, and __________.
Answer:
Asteroids and Meteoriods
Explanation:
1)Use the data from 9.3 to construct a line graph to show the change over time.Give the graph a title.
2)Make a claim that answers” What effect did the removal of tidal restrictions have on the number of mummichogs found upstream?”
3)What evidence was used to write your claim? Reference specific parts of the table or graph.
4)Explain your reasoning and why the evidence supports your claim. Connect the data back to what you learned about mummichog fish and their connection to salt marsh health.
How many total molecules are found in the following compound?
4K2CO3
Answer:
Composition of 4K2CO3
Element Symbol Atomic Mass # of Atoms Mass Percent
Potassium K 312.7864 g/mol 8 56.5799%
Carbon C 48.0428 g/mol 4 8.6905%
Oxygen O 191.9928 g/mol 12 34.7296%
Explanation:
hope this helps :)
I need to summarize all of this...PLeAsE hElP mEeE!!!!!
Explanation:
Your hair, skin color, and eye color are In hareted by your parents. If you and your mom both have brown hair and your dad has Blonde that means you have Your moms gene for hair color. That also means your moms gene is a Domanent gene and your dads is prob. a Resesive gene. A Domanent gene over powers the Resesive.
Hope this helps :)
what is an outcome variable in an experiment?
Subject; science experiment
Answer:
dependent
Explanation:
depending on what the question is asking specifically, the independent variable is the variable you change in order to get the outcome of the dependent.
The South’s major crops included tobacco, rice, sugar cane and what else
Answer:
indigo (purple dye)
Explanation:
i hope this helps you! have a great day
It also included cotton
hope this helps!
Explain how industrial melanism has affected moths.
Answer:
An evolutionary instance of directional change to the color of the moths population during the revolutionary war, which increased the dark color at the time, an example of industrial melanism.
Explanation:
Answer: Color change
Explanation:
Why? Well, the evolution of, let's say, the peppered moth is a metamorphic case of steering color change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-colored moths increased at that time. Which is an example of industrial melanism.
ok here is a challenge i'll give you a brainiest if i agree!!
Let say we forget everything people has ever said to you such as ugly, pretty, short, tall, dumb or whatever that is "describing" you. (includes: family, friends, strangers)
now tell me who you "really" are after you forget everything anyone has ever said to you.
I would have no idea who I am, heh.
Answer:
i amgonna not know who i am
Explanation:
T-T im weird
What type of element(s) would be expected to form first from a subatomic particle explosion? choices are heavy elements, iron, oxygen, and light elements!! thanks
Which pair of objects would be most strongly attracted to each other?
A. A negativity charged particle and a neutral particle
B. Two positively charged particles
C. A positively charged particle and a negatively charged particle
D. Two negatively charged particles
Which best describes the plate tectonic theory?
A) The Earth is a big puzzle
B) Broken plates of the Earth float on the liquid mantle
What sound does a cat make
Answer:
meowwwwwwwwwwwwwwww
Answer: Meow! LOL :D
Explanation: Have a Great Day! :)
Ezra eats a cheese sandwich for lunch. Cheese contains a lot of protein, and bread is mostly starch. Ezra plans to play basketball later in the afternoon. He is breathing normally.
What does Ezra need from the food he ate and the air he breathes so that he can play basketball? How do Ezra’s body systems work together to get the molecules he needs into his cells? How do his cells use these molecules to release energy for his body to run?
Answer:
Ezra need glucose and protein from the food he ate and oxygen from the air he breathes so that he can happily play the basketball
Answer:
I agree that Ezra need glucose and protein from the food he ate and oxygen from the air he breathes so that he can happily play the basketball