Answer:
D. Mangrove tree crab. There would be a drop in the predators that feed on them. Crocodile populations would drop to food shortage, and mangroves might also suffer from the high crab population, so only D is correct.
PLEASE HELP 11. A group of lizards living in a desert would be an example of what? (5 points)
Population
O Shelter
O Succession
O Food web
Which of the following in NOT a characteristic of eukaryotic cells?
DNA is separated from the cytoplasm by a nuclear membrane
Lack membrane-bound organelles
Complex
Large
Write a short paragraph that explains the relationship between the terms "chromosome," "gene," "DNA," and "allele."
Answer: Genes appear throughout the length of each chromosome, and each chromosome pair has a unique set of genes. ... In a diploid organism, the two corresponding genes in a chromosome pair, or alleles, might be identical or might have different base sequences. Each parent contributes one allele in each pair.Alleles are different forms of same gene. Genes are linearly arranged on chromosomes. Chromosomes contain genetic material of cell i.e. DNA. So chemically alleles, genes, chromosomes are all DNA !
Explanation:
what are the tools used in mulching?
Answer:
A square-point shovel works best for moving mulch materials such as pebbles, wood chips and sawdust. A pitchfork works well for loose straw mulch.
Explanation:
Answer:
A square-point shovel
Explanation:
Mulch is divided into organic and inorganic. In both cases, it prevents the soil from drying out, weed growth and soil erosion.
Mulching is a way of mowing the grass in which the cut grass is not bought from the grass surface, but it is cut into smaller parts and scattered on the lawn, and in that way your lawn is fertilized and maintained in the right way.
The best tool for this is lawnmowers.
A scientist is conducting research about all the plants and wildlife in the Mojave Desert as well as the desert’s resources, such as water and soil. The scientist is studying
Answer:
An ecosystem
Explanation:
Answer:
D. an ecosystem
Explanation:
Just took the test and got a 100% on edge2020 :)))
Answer the question in the picture
zvanswerefh
Explanation:
Riddick DM Inc cucumber CTN ay be bunching
What does ambulocetus translate to?
Ambulocetus (meaning "walking whale") is an early cetacean with short limbs and large feet used for swimming. Along with other members of Ambulocetidae, it is a transitional fossil that shows how whales evolved from land-living mammals.
Answer:
Walking whale that swims
Explanation:
its a cetacean with short limbs and large feet used for swimming
Hair color and eye color are examples of ______ variation
A) discontinuous
B) independent
C) mutation
D) continuous
answer:
mutation..?
explanation:
the general name for this is called heredity based on two human cells combining and offsprings yadda yadda but it doesnt have that so try mutation because its another word for it i think, well its the closest to heredity
Hair color and eye color are examples of discontinuous variation. The correct option is A).
What is the variation?
Variation is the difference or change in the characters or any individual. The variation in the organisms is due to genetic makeup, the genetic makeup of every individual is unique.
Discontinuous variation is where there is a limited number of variations will occur. Eye color and hair color are one of them.
Thus, option (A) discontinuous is correct regarding variation.
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Animal cell organelles
Answer:
Nucleolus: Synthesis of ribosomal RNA.
Nucleus: Contains genes (chromatin).
Ribosomes: Protein synthesis.
Vesicle: Transport of materials within the cytoplasm.
Rough endoplasmic reticulum (RER): Protein synthesis.
Golgi Apparatus: Processes, packages and distributes proteins to other organelles for export.
Cytoskeleton: Structural support of cells; facilitates the movement of the organelles.
Smooth endoplasmic reticulum (SER): Lipid synthesis; drug metabolism.
Mitochondria: Produces energy for the cell called ATP.
Vacuole: Protection of the cell, collect waste products and maintain internal pH, among others. (*) Only in some animal cells.
Lysosome: Cellular digestion.
Centrosome: regulate the cell-cycle progression.
Cell membrane: separates the cell from its environment; regulates the movement of materials in and out of the cell.
Answer:
Animal Cell organelles are cell membrane, cytoplasm, lysosomes, ribosomes, a nucleus, mitochondria, the Golgi apparatus or Golgi bodies, ectoplasmic reticulum, and vacuoles.
Explanation:
You might not count the cell membrane and cytoplasm as organelles because they hold the cell together. the cytoplasm is the fluid in which the other organelles float in, and the membrane is like a fleshy crust for the cell.
Plant cells have two more organelles/structures than animal cells. They are the chloroplast and cellwall. Plant cells also have a central vacuole and maybe some few smaller ones, in contrast to animal cells with many smaller vacuoles. Vacuoles are where things the cell needs (like water) are stored.
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Snapdragons, a flowering plant popular with gardeners, can have red, white, and pink colored petals. When snapdragons with red petals (RR) are crossed with snapdragons having white (WW) petals, the offspring have pink petals. The pink coloration (RW) is a phenotype in between the red and white parental phenotypes. What is this kind of inheritance pattern called?
Answer: Incomplete Dominance.
Explanation: When snapdragons with red petals (RR) are crossed with snapdragons having white (WW) petals, the offspring will have pink petals. This will make the pink coloration (RW). Since both of these genotypes are dominant it is Incomplete Dominance because the R does not completely mask the effects of a recessive allele, which in this case theres none.
The Punnett square shows the genotype for scale color in a species of lizard where color is inherited via incomplete dominance. Y
is the allele for yellow
scales, and is the allele for red scales. What percent of the offspring will have yellow scales?
R R
Y
?
?
R?
?
?
A 2/4 -50% will have yellow scales.
4/4 - 100% will have yellow scales.
1/4 - 25% will have yellow scales.
0 0/4 - 0% will have yellow scales.
Answer it is 25 percent
Explanation:
Cross a person who does not have freckles and is heterozygous for dimples with a person who has
freckles (but her mom does not) but no dimples.
1. What is the probability that these parents will have a child with dimples?
2. What is the probability that these parents will have a child with freckles?
3. What is the probability that these parents will have a child with dimples and freckles?
Answer:
1. 1/2
2. 1/2
3. 1/4
Explanation:
Let the allele for freckles be A or a while that of dimples be B or b.
A person without freckles but heterozygous for dimples = aaBb
A person who has freckles (whose mother has no freckles) but no dimples = Aabb
aaBb x Aabb
Offspring
4 AaBb - freckled and dimpled
4 Aabb - freckled and non dimpled
4 aaBb - non freckled and dimpled
4 aabb - non freckled and non dimpled
1. Probability that the parents will have a dimpled child = 8/16 or 1/2
2. Probability that they will have a child with freckles = 8/16 or 1/2
3. Probability that they will have a child with freckles and dimples = 4/16 or 1/4
See the attached image for the Punnet's square analysis of the cross
Allie and Roman are trying to graph the blue line shown
on the left. Only one of them has a correct answer.
Allie entered this equation: y = 2x - 8
Roman entered this equation: y=8 - 2x
Who is correct?
Allie
Roman
Explain your thinking.
Answer:
roman
Explanation:
What are paired chromosomes called?
Answer:
Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their
someone help. ill give brainliest to the correct person. image below.
Answer:
B.
Explanation:
The appearance of the moon changes in a predictable pattern that lasts approximately 28 days.the changes in appearance are called phases of the moon.what is the main cause of the moon phase
Answer:
The main cause of the moon phases is the changing position of the moon in relation to the sun and the earth.
Explanation:
The moon phases are the perception of the part of the moon that is visible, when observed from the earth. When it is completely visible it is called full moon, when it cannot be seen it is called new moon and the phases between one and the other are called crescent and waning quarters.
The moon can be visible when it receives illumination from the sun but, due to its changes in position with respect to the earth, this illumination can be complete, partial or absent, which defines each of the phases.
When the moon completes its four phases it is called the lunar cycle, and it has an estimated duration of 29.5 days.
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Which of the following increases soil acidity?
planting acid-loving plants
adding compost
adding aluminum
acid rain
Answer:
acid rain
Explanation:
Answer: The correct answer is acid rain
Explanation: This answer has been confirmed correct.
Scientists have discovered that there are reproductive isolating mechanisms that can stop a population from interbreeding and possibly lead to the formation of a new species. What is this process called
Answer:
Polyploidy
Explanation:
The isolating mechanism that is capable of stopping a population from interbreeding, possibly leading to speciation is polyploidy.
Polyploidy is a condition in which a species of an organism will have multiple, instead of a diploid, chromosomal set as a result of an error during meiosis.
Non-disjunction during meiosis can make a gamete have a diploid number of chromosomes in the place of a haploid chromosome. A 2n gamete fusing with an n gamete will result in a triploid organism, 2n plus 2n gametes will result in a tetraploid organism, etc.
If the extra chromosomal set is from the same species, such polyploidy is termed autopolyploidy, otherwise, it is termed allopolyploidy. Having extra sets of chromosomes has the capacity to make an organism to be reproductively incompatible with normal diploid organisms of the same species. However, polyploid organisms can either self-pollinate or cross with another polyploid organism, a process that can lead to sympatric speciation.
Photosynthesis and cellular respiration are two processes that help drive earth carbo cycle carbon
What cell structure seems to be common in both prokaryotic and Eukaryotic cells?
(multiple choice question)
1.Cell Membrane
2.Cell Wall
3.Nucleus
4.Flagelle
Answer:
I think its cell membrane
Explanation:
The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment
When the centromeres split in mitosis,what does the sister chromatids’ name change to?
Answer:
During anaphase 2, the chromosomes' centromeres break, and the spindle fibers pull the chromatids apart. The two split portions of the cells are officially known as "sister chromosomes" at this point.
Explanation:
What is one event that may occur during Telophase I?
An event that may occur during Telophase I is: the nucleus of each cell may reappear as two independent cells are being formed.
Meiosis can be defined as a type of cell division or duplication that occurs in all body cells found in living organisms, through which a single cell divides twice to produce four (4) haploid cells (gamete).
Basically, deoxyribonucleic acid (DNA) must replicate before meiosis can occur in all body cells found in living organisms.
Generally, the phases or steps that occur during meiosis include:
Prophase I.Metaphase I.Anaphase I.Telophase I.Prophase II.Metaphase II.Anaphase II.Telophase II.Sometimes, the nucleus of a single cell may reappear when two (2) independent cells are being formed during Telophase I.
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How many gamete possibilities will there be producedby the F1 generation?
When the salinity in an ocean has decreased what action has taken place.
Answer:
water had been added
Explanation:
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Need help plzssssssssssssssssss
Answer:
Offspring
Explanation:
You pass down traits to your offspring. Your offspring inherit from you.
What is the natural source of energy in Mars, please help
Answer:
The power source is called a "Multi-Mission Radioisotope Thermoelectric Generator" or MMRTG for short. The MMRTG converts heat from the natural radioactive decay of plutonium into electricity. This power system charges the rover's two primary batteries. The heat from the MMRTG is also used to keep the rover's tools and systems at their correct operating temperatures.
Answer:
the sun
Explanation: the sun proides the heat energy
Select all the true statements about density: (hint - there are 4 correct statements)
d=m/v (denisty equals mass divided by volume)
density is measured in meters
density is the ratio of an objects mass to its volume
objects that are heavy for their size are very dense
objects that are heavy for their size are not dense
density is how much matter is in a given amount of space
all dense objects will float
(there is more then 1 answer by the way)
answer
2nd is wrong
5th is wrong
last is wrong
In order to insert a human gene into a plasmid, both must _____In order to insert a human gene into a plasmid, both must _____have identical DNA sequencesoriginate from the same type of cellcode for the same gene productbe cut by the same restriction enzymebe the same length
Answer: be cut by the same restriction enzyme resulting in the formation in the formation of the complementary sticky ends.
Explanation:
I hope this helped
Using Newton's second law explain how a rocket can have an increase in acceleration over time
Answer:
According to Newton's second law: the acceleration of an object is inversely proportional to it's mass, so if you decrease it's mass while keeping the net force the same, the acceleration will increase.
Explanation:
hope this helped...
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23. A PCR reaction is performed, and the negative control demonstrates the presence of a detectable number of PCR product (amplicons) by capillary electrophoresis. What is the most likely cause?
Answer:
Contamination of the control sample (negative control) with DNA
Explanation:
The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories to amplify a target DNA fragment using primer pairs and DNA polymerase. In PCR experiments, it is imperative to include both positive and negative controls. The positive control refers to the amplification of a PCR product (amplicon) of known molecular size during PCR reaction in order to ensure the correct molecular weight of the target DNA fragment. The negative control refers to the inclusion of a sample without DNA in order to ensure that no contamination with DNA has occurred in the other samples.