Answer:
Microbial mats.
Explanation:
Microbes formed sheets that were able to capture layers of sediment is called microbial mats. These mats of microbes provide good fossil evidence to the researchers. These microbial mats consist of bacteria and archaea which is considered the earliest form of life on earth. These microbial mats grow on moist places as compared to dry environment. About 3,500 million years ago, these microbes are the most important members of earth and maintainers of the ecosystems.
How many dominant alleles does an individual have to inherit to show a dominant phenotype
Answer:
one allele
When a trait is dominant, only one allele is required for the trait to be observed. A dominant allele will mask a recessive allele, if present.
Hope this helped!!!
Which profession would YOU most likely see in your high school?
A. Counseling psychologist
B. Psychiatric social worker
Answer:
A
Explanation:
Viruses change at a very fast rate Can you use this information to explain why vaccines against a specific virus don't last forever ?
Viruses can multiply very quickly, and so they can go through natural selection at a much quicker rate, allowing certain vaccine resistant mutations to take over a population.
Genes contain the information needed to make _____ that form our traits.
Drag each label to the correct location on the image.
identify the parts of the male reproductive system on the diagram
epididymis
testis
urethra
vas deferens
prostate gland
seminal vesicle
Answer in the picture below.
how does the respiratory system deliver oxygen to the circulatory system?
Answer:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Explanation:
brainliest pls
If a specific kind of protein is not continually used by a cell, the gene for that protein is _________________________.
Answer: what are the answer choices?
Explanation:
Answer:
The gene for the protein is turned on and off at different times.
Explanation:
The turning on and off of the gene is described as gene regulation. This process is important because it enables the cells to react quickly to the changes in the environment.
Note that , this process mostly occur at transcription level during gene expression , and help in determining the amount of protein made by a gene.
wich of the organic compounds (necessary for all living things) are responsible for storing and transmitting genetic information?
A.5-Carbon Sugar
B. Nucleic Acids
C. Phosfate groups
Explanation:
As I think ,Nucleic Acids is correct one.YOU CAN THINK ABOUT DNA.
tRNA is responsible for interpreting the mRNA codons and bringing amino acids to the ribosome, in a word this process is known as:Required to answer. Single line text.
(2 Points)
Answer:
translation
Explanation:
fjdodkfksldmfnsks
Which statement about air is correct?
Answer:
Air is essential for all organisms
what phenotype would a plant with the genotype Pp have?
In a density-dependent population, an increase in which of the following will most likely lead to an increase in population density?
Birthrate
Carrying capacity
Death rate
Emigration
Answer:
birthrate
Explanation:
In a density-dependent population, an increase in birthrate will most likely lead to an increase in population density. So, the correct option is A.
What is population density?Population density is the number of people in a given area of land. It primarily applies to people, yet occasionally it also does to other living things. That is a crucial geographic phrase. The amount of people who live in an area per square kilometer, or even other unit of land area, is referred to as population density.
We must divide the population's number by the area's size to determine the population density. Population Density is therefore equal to the number of people divided by the land area. Square miles or square kilometers should be used as the measure of land area. If we need to calculate the density of a relatively small place, then can use square feet or meters.
Therefore, the correct option is A.
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Which pond would most the most likely to lead to terrestrial succession?
A) Pond A
B) Pond B
C) Pond C
D) Pond D
Answer:
pond d because u know what a turtle can leave in pond fish can live also other aquatic animal but a bird can't kive so it will die in water for a long time and will not be able to survive and it will cause terrestrial succession
The pond that should be most likely to lead to terrestrial succession should be considered as the pond d.
What is terrestrial succession?In terms of terrestrial ecosystems, the succession should arise either at the primary or the secondary succession. here the primary succession should be the type of succession where it arise at the time when the area should experience the disturbance.
Also it does not have the survival of the original species
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Mothers may be encouraged to breastfeed their newborn babies. The first milk that a mother
secretes is called colostrum and contains antibodies.
(i) Name the cells that produce antibodies.
Answer:
Lymphocytes
Explanation:
PLEASE HELP!! BIOLOGY
Which of the following is NOT an element in the process of natural selection?
a
Individuals struggle for survival.
b
Organisms cause environmental change.
c
Fitness with your environment can lead to an increase in your population.
d
Genetic variation exists within a species.
Answer: what I learned is that natural selection needs 4 things
Explanation:
over production
genetic variation
i don’t remember the rest but those are the main ones so that there’s lots of offspring in case some cant survive
HOPE I HELPED
CO2 has been referred to a greenhouse gas because it acts to trap the sun’s heat on our planet like the grase in a greenhouse traps the sun’s heat in the room. what does the graph indicate is the relationship between global tempratures and CO2 concentration
Answer:
a. As CO2 increases, the temperature also increases.
Explanation:
Carbon dioxide (CO2) is an atmospheric molecule produced naturally via respiration or artificially via burning of fossil fuels. CO2, as rightly stated in this question, has been referred to as a greenhouse gas because it acts to trap the sun’s heat on Earth.
Logically, an increase in the amount of greenhouse gas like CO2 released into the atmosphere means an increase in the greenhouse effect or global warming (increase in global air temperature). However, according to the GRAPHICAL REPRESENTATION in this question, an increase in the ppm concentration of CO2 led to an increase in the temperature (°F) of the globe over the years.
As depicted on the graph, at a CO2 concentration of 390ppm, the relative temperature was at over 1°F.
carbon continuously cycles through the biosphere, changing forms. Which of the following statements accurately describes the movement of carbon?
Answer:
A
Explanation:
Maybe b but most likely A.
Groundhogs inhabiting a meadow environment drink water and rely on plants, including clover, for food. Which of the following terms describe both the water and the clover that the groundhogs consume? Choose the two that apply.
A. limiting factors
B. abiotic factors
C. biotic factors
D. resources
The following terms describe both the water and the clover that the groundhogs consume are:
Abiotic factors Biotic factorsWhat are the factors that affect population size?The 2 main aspects affecting denizens growth are the birth rate and death rate .
People development may also be impacted by people coming into the population from someplace else or leaving the residents for another region.
Thus, option "B" and "C" is correct, Abiotic factor and Biotic factors.
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I need help what are plantea and animalia?
Answer: These organasims are both eukaryotic cells, so these 2 cells are capable to produce food by their own. The Plantae include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. An animalia is one of the basic groups of living things that comprises either all the animals or all the multicellular animals, you can compare that to the plantae or protista.
Explanation:
what is rare type of blood ?
Negetives of any blood are rare but they are present.
8. Two heterozygous purple flowered plants are crossed.
What percentage of the offspring are purple?
white?
Answer:
75% chance of purple, 25% of white
Explanation:
Heterozygous means having two different alleles of a gene
This must mean they are Purple dominant and white recessive
This will be represented as Pw
[tex]\left[\begin{array}{ccc} &P&w\\P&PP&Pw\\w&Pw&ww\end{array}\right][/tex]
This, called a punnet square, calculates the probability of the gene outcome. The top Pw represents one parent and the Pw on the left side represent the other.
In the diagram, each combo of letters ( PP, Pw, Pw, ww ) represents a 25% of what gene the offspring will have. PP means it'll be purple, and so does both Pw's. ww means white flowers though because there is no dominant trait and only recessive. This is the only way for a recessive trait to appear in a child.
Therefore there is a 75% chance of the offspring having purple flowers and a 25% chance of the offspring have white flowers.
Which two factors allow this cattail population to thrive in its ecosystem?
A. Adequate sunlight
B. A harsh, cold climate
C. Plentiful freshwater
D. Nutrient-poor soil
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[tex]\huge\color{turquoise}{\boxed{\boxed{\sf\color{royalblue}{ANSWER\::}}}}[/tex]
Which two factors allow this cattail population to thrive in its ecosystem?
A. Adequate sunlightB. A harsh, cold climate
C. Plentiful freshwater
D. Nutrient-poor soil[tex]\large\color{hotpink}\star\color{turquoise}{\boxed{\boxed{\rm\color{cyan}{EXPLANATION}}}}\color{hotpink}\star[/tex]
A AND D!Adequate sunlight and Nutrient-poor soil are the two factors that allow this cattail population to thrive in its ecosystem.
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
ocean currents
Explanation:
the ocean stores solar radiation and distributes heat
Genetic diversity is the raw material for evolution.
True or False
Help please :(
6. The largest lymph vessel is the
a. Lumbar trunk
b. Thoracic duct
C. Lymphatic duct
d. Intestinal trunk
Answer:
B. thoracic duct
Explanation:
I hope this helps
The oldest crust on the ocean floor is found in the center of the mid-ocean
True or False
Answer:
true
Explanation:
Answer:
False
Explanation:
The oldest parts of the oceanic crust are in the Mediterranean Sea.
does anyone know what the answer is??!
Answer:
no i don't know the answer
Answer:
thank you brown green brown green red yellow extra teeze
Explanation:
iodine 131 has a half-life of 8 days. if the amount of iodine 131 in a sample is 8 g how much iodine 131 will remain after 32 days?
Answer:
4g?
Explanation:
Not really sure but pretty sure.
do number 7 pls and thanks
Answer:
Keiko can put 144 blocks in the box. If you find the volume of the box, that is the number of blocks you can fit in the box. I found the volume by multiplying the length, width, and height together.
3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata
Answer:
Seed Coat
Explanation: