Answer:
true
Explanation:
The diagram shows a football field that represents a geological time scale. Why are no organisms labeled between the end zone and 30 yard line on the left side of the field? Scientists disagree about the fossils from this time period. Scientists have not studied that part of the time scale. There is very little fossil evidence for this time period. There are too many fossils to name.
Answer:
the is b
Explanation:
Answer:
b
Explanation:
boi
A characterstic common to both difussion and active transport is that
1. Enzymes are required
2. Oxygen is moved across a membrane
3. ATP is needed
4. The movement of molecules occurs
Answer:2
Explanation:
How can identical twins, who have the same genome, grow up to experience different states of health as adults?
Which of your cells has allof your DNA code?
Only hair cells
All of your cells
Only brain cells
Heart and skin cells
Answer:
answer is all of your cells because DNA is present all
in all places
A red blood cell is 7.5 µm in diameter. It is magnified 2000 times. Calculate the diameter of the image seen through the microscope in millimetres.
Answer:
15 mm
Explanation:
Given that,
The diameter of a RBC = 7.5 µm
It is magnified 2000 times.
We need to find the diameter of the image seen through the microscope in millimeters.
The size of the diameter is given by :
[tex]d=2000\times 7.5\\\\=15000\ \mu m\\\\or\\\\d=15\ mm[/tex]
So, the diameter of the image seen through the microscope is 15 mm.
The interaction among animals of the same species is called courtship.
Please select the best answer from the choices provided
T
F
The definition of courtship is "the behavior of male birds and other animals aimed at attracting to a mate"
So yes, the answer is true.
Which organism is likely to carry out the process shown in the diagram?
Fill the blanks
_____________ ______________ occurs when several pairs of alleles contribute to a single trait. This results a ________________ of phenotypes
which of the following is found in a plant cell but not in an animal cell
Answer:
A cell wall can be found in a plant cell but not an animal cell
Can someone pretty pls help me with the producer and decomposer side :3
Answer:
definition: producer are organism that make their own food
carrotsa strip of orange treesany green plant
definition : are mainly fungi decomposer are organism that decomposes or break down , organic materials such as the remain of dead organism
earthworm and bacteria are some decomposer mushroominsects
Table salt and table sugar, examine the chemical formulas for salt and sugar. What do they tell you about what type of bonding is present in each compound
Answer:
Explanation:
Table salt, also NaCl (sodium chloride) is an ionic compound in which there is a transfer of an electron from the sodium atom to the chlorine atom. This electron transfer is characteristic of an ionic/electrovalent combination/bonding. While table sugar, also C₁₂H₂₂O₁₁ (sucrose) is an organic compound; thus has covalent bond within it's carbon chain, carbon-hydrogen bond and carbon-oxygen bond. Covalent bonding involves the sharing of electrons between two atoms, these electrons that are shared are referred to as "shared pair".
Describe the structure of a chloroplast. How do the inner membranes differ from the outer membranes?
Answer:
the outer membrane has small organic molecules but the inner membrane is less permeable and studded with transport proteins.
Explanation:
You need to receive a
disease to be expressed.
gene from each parent for sickle cell
a. Dominant
b. Recessive
Recessive gene coding is saved & stored tight in your DNA, waiting fpr the opportunity it's always wanted. Once it finds a partner, it starts to get to get busy. Working & perfecting for Sickle Cell Disease/Sickle Cell Anemia.
__________________________________
a short paragraph that explains how the ATP cycle works
Answer:
The process of phosphorylating ADP to form ATP and removing a phosphate from ATP to form ADP in order to store and release energy respectively is known as the ATP cycle.
Explanation:i hope this is the answer
B. What is the diploid number of the original cell?
(how many chromosomes does it have?)
Answer:
equation is 2n = 46
Explanation:
humans have 2 sets of 23 chromosomes
Two full sets of chromosomes make up a diploid cell. Humans mostly have diploid cells, which have 23 pairs of chromosomes each, for a total of 46 chromosomes.
What are chromosomes?There are 22 pairs of autosomes and two sex chromosomes in this. The person received one copy of each pair of chromosomes from their mother and the other copy from their father.
A "diploid cell" is one that has two copies of each chromosome; human somatic cells are diploid and have 46 chromosomes, 22 pairs of autosomes, and a pair of sex chromosomes.
Histones, which function as packing proteins for the majority of eukaryotic chromosomes, join forces with chaperone proteins to attach to and compress the DNA molecule, maintaining the integrity of the molecule.
Therefore, diploid cells, have 23 pairs of chromosomes each, for a total of 46 chromosomes.
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How does hibernating underground allow a frog to conserve water?
Answer:
Explanation:
because firstly they have shelter to keep warm and to rink water
Please choose the correct answer option below
Answer is C:
Explanation:
Answer:
C
Explanation:
I'm pretty sure that is the one
5. A moth has two alleles for spots. It can have brown or white spots. The white allele is recessive and
the brown allele is dominant.
a) In one population, the brown spot allele frequency is 0.15. What is the white spot allele frequency? (2
points)
Answer:
0.7.5
Explanation:
I hope this is right
the non essential part of a flower are the
Answer:
Calyx + Corolla
Explanation:
Answer:
the non-essential or accessory parts of the flower because they do not directly participate in the process of sexual reproduction.
Explanation:
Using the Gizmo, find a carbon atom path from the atmosphere to the cement plant. (Hint:
One of the ingredients in cement is limestone.)
Path:
Answer:
Path: Atmosphere -> Ocean -> Shells -> Limestone -> Cement Plant
The path of a carbon atom is - air, ocean, shells/coral reef, limestone, cement plant.
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron, and other ingredients.
Common components used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace, silica sand, and iron ore.Limestone form the coral reefs that are massive structures deposited by coral polyps.Coral reefs get their carbonate from the ocean that comes from air Carbon in limestone is produced in a cement plant when heated to make calcium oxide. The waste product is carbon dioxide.Thus, the path of a carbon atom is - air, ocean, shells/coral reef, limestone, cement plant.
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Help please and thank you :) .(Cycling of matter and energy flow quick check).
1. Which of the following describes the amount of organic material that is available for transfer to the next trophic level after subtracting material used for respiration?
-Gross Primary productivity
-Biomass
-Net Primary productivity
0r
-Primary productivity
2. Suppose a plant is eaten by a mouse, the mouse is consumed by a snake, and the snake is in turn consumed by a hawk. What could be assumed about the level of available organic matter in the mouse versus the plant?
-There will be less organic matter available.
-There will be more organic matter available.
-Organic matter does not transfer between the plant and the mouse.
0r
-They both have the same amount of organic matter.
3. How does biomass change from lower to higher trophic levels?
-It fluctuates.
-It increases.
-It decreases.
0r
-It stays the same.
4. The incomplete burning of _____ in gasoline is known to create black carbon and contribute to global warming.
-ethanol
-methane
-carbon
0r
-carbon dioxide
5. Why are there less secondary consumers in an ecosystem than producers?
-Around 90% of energy from one trophic level to the next is available.
-There is less land to use for habitat after the producers grow.
-More tertiary consumers will eat secondary consumers over producers.
0r
-There isn’t enough energy available to support more secondary consumers.
...Thanks...
Answer: 1. Net primary productivity
2. there will be less organic matter available
3. it decreases
4. ethanol
5. there isn’t enough energy available to support secondary consumers
Explanation:
1. Gross Primary productivity is the organic material that is left after subtracting energy used for respiration. It is always greater than net primary productivity.
2. There will be less organic matter available for the mouse because plant is a primary producer of biomass and it lies at the lowest trophic level as we go up in the trophic level the level of energy reduces.
3. The biomass will decrease while going from lower to higher trophic levels this is because of the fact that the plants or other autotrophs are the primary producers of biomass.
4. The incomplete combustion of gasoline and methane are the major fuels contributing to global warming.
5. There are less secondary consumers in an ecosystem because more tertiary consumers are dependent on secondary consumers for their food and energy requirements.
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Clouds with light rain.
In your current location, the weather is much like this picture: cloudy and drizzly. The weather has been like this for several days. The good news is that the weather report says warmer weather is coming soon.
Which type of front most likely caused this weather?
occluded front
stationary front
warm front
cold front
Warm fronts move more slowly and are less violent than cold fronts. They are associated with warm air moving over cold air and are more likely to produce large regions of light to moderate rain, drizzle or snow. Cirrus clouds and alto cumulus, along with fog, often precede warm fronts as they move through an area. The milder weather that follows will be warmer in temperature. So it would be warm fronts.
Answer:
Warm Front
Explanation:
Many plants tend to wilt on a hot, sunny day. The most likely cause of this wilting is
Answer:
Maybe due to the fact of plant diseases wich causes the plants to wilt and discolour
!20 POINTS!
Which behavior is an example of how animal communication helps a population survive?
A. A bird destroys another bird's nest so that it can nest in that spot.
B. Giraffes and zebras compete for water at the same watering hole.
C. Ants use their bodies to form a bridge that other ants can use to get to food.
D. A bee returns to the hive and shares the location of food with other bees.
Answer: The correct option is D.
A bee returns to the hive and shares the location of food with other bees.
Explanation:
This is because animal communication is the interaction or sharing of information that occur between animals of the same species. It is how animals commune in a language they will understand. A bee returns to the hive and shares the location of food with other bees is a behavior of animal communication that help population to survive because, the bee share information to other bees which is beneficial to them and aid they to survive as we know that food is an essential for survival.
Answer: D
Explanation:
What is the wavelength of a wave with a frequency of 330 Hz and a speed of
343 m/s?
Answer:
1.039m
Explanation:
s=f*λ
s=speed of wave(m/s)
f=frequency of wave(Hz)or(s^-1)
λ=wavelength
343m/s=330Hz*λ
λ=[tex]\frac{343m/s}{330s^{-1} } =1.039m[/tex]
Answer:
1.04
Explanation:
please like
Does mitosis occur in all organisms?
Answer:
Mitosis happens in all eukaryotic cells (plants, animals, and fungi). It is the process of cell renewal and growth in a plant, animal or fungus. ... Mitosis is also important in organisms which reproduce asexually: this is the only way that these cells can reproduce
Explanation:
Which process is responsible for the loss of biomass at each level of the ecosystem
Answer:
The correct answer is - excretion
Explanation:
In any ecosystem, there is a loss of biomass and energy at each level of the energy pyramid or trophic level. Biomass and energy both lost due to completing the life processes.
All the biomass is eaten at each level as not all food they take completely digested and removed by the process of excretion in various forms such as solid feces, carbon dioxide, and water in respiration and water and urea in urine.
The pedigree below shows two generations of individuals within a family. The pedigree shows
that a daughter has a genetic trait, even though neither of her parents nor her siblings have the
trait.
O
7. How can the daughter have the genetic trait if no one else in the family has it?
A. The trait is determined by a recessive allele.
B. The trait is not inherited.
C. The trait is determined by a dominant allele.
D. The trait is passed only from female to female.
D)
Explanation:
The traly is passed only from female to female
Answer:
Explanation:
b
For a particular trait, the allele C is dominant over the allele c. The Punnett square below shows
the genetic
С
с
Сс
ССС
ccc
CC
6. What percentage of the offspring will show the phenotype of the dominant and
recessive allele?
A. 50% will show the phenotype of the dominant allele and 25% will show the
phenotype of the recessive allele.
B. 75% will show the phenotype of the recessive allele and 25% will show the
phenotype of the dominant allele.
C. 75% will show the phenotype of the dominant allele and 25% will show the
phenotype of the recessive allele
D. 100% will show the phenotype of the dominant allele and 0% will show the
phenotype of the recessive allele.
Answer:
C. 75% will show the phenotype of the dominant allele and 25% will show the
phenotype of the recessive allele
Explanation:
on the punnet square you can see that 3/4=75/100 of the individuals have the dominant allele so they will manifest the dominant phenotype the other 25% don't have the dominant allele
75% will show the phenotype of the dominant allele and 25% will show the phenotype of the recessive allele.
What is Punnett square?An illustration of the potential genotypes of an offspring resulting from a specific cross or breeding event is called a Punnett square. Knowing the parents' genetic make-up is necessary to create a Punnett square. They have tabular representations of the different conceivable combinations of their gametes.
The underlying presumption is that different qualities assort independently from one another and that each feature is determined by a single gene locus. There are numerous exceptions, even if this is generally true for many beneficial qualities, particularly when picking characters for plant or animal breeding.
This device was developed in the 20th century, many years after Mendel's groundbreaking genetics experiments.
Therefore, 75% will show the phenotype of the dominant allele and 25% will show the phenotype of the recessive allele.
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Match each precipitation type with its image.
Snow
Hail
Sleet
Rain
Answer:
snow C
hail D
sleet A
rain B
Answer:
Snow is C, Hail is D, Sleet is A, Rain B.
Explanation:
hoped it helped!!