Answer:
Telophase : Each chromosome attaches to a spindle fiber .
i think this is the answer
Answer:
The correct answer is Prophase : Fibers form the mitotic spindle.
Explanation:
This is when fibers form the mitotic spindle.
The Groundwater system?
Answer:
A groundwater system comprises the subsurface water, the geologic media containing the water, flow boundaries, and sources (such as recharge) and sinks (such as springs, interaquifer flow, or wells).
Explanation:
the dunes in the park are formed by
a)rainstorms
b)tornadoes
c)earthquakes
d) strong winds
Sperm are produced in the
Glands
sperm ducts
testes.
urinary bladder
Answer:
Testes I cant explain it but this has to be at least 20 characters long
Answer:
Testes
Explanation:
Right off edge~
Which is an example of genetic diversity?
1. bacteria, garter snakes, tigers
2. temperate rain forests and a tropical rain forest
3. Variations in a flock of starlings
4. bees, jack rabbits, diamondback rattlesnakes
Answer:
1.bacteria, garter snakes, tigers
8. What are some general characteristics of an invasive species?
Answer:
they are not from the land that they are currently residing in
they destroy the ecosystem of the habitat they are currently in, as in they harm the native animals by eating all their food, eating them, etc.
they take up space too
Explanation:
There is more genetic variation ________________ a population that ________________ populations.
Answer:
1. Within
2. Among two different
Explanation:
There is more genetic variation WITHIN a population than AMONG TWO DIFFERENT populations. This is evident in the fact that phenotypic variation occurs at a greater length within a population resulting from natural selection based on survival and the ability to produce offspring strategy. This unlike populations that consist of two or more different populations mingled together.
!!!!Someone help me with this!!!
!!!Eukaryotic Cell Structure and Function !!!!(Will Give Brainliest Answer)!!!
4. Cell wall, chloroplast and plastids
5. Plasma membrane, ribosomes, cytoplasm and DNA
6. Eukaryotes have a nucleus while prokaryotes don’t have one
7. Nucleus controls/regulates cell’s activities.
Nucleus consists of nuclear membrane, nucleoplasm, chromatin fibers, nucleolus and endosomes
I’m not sure how to answer the last question
Sorry if any answers are wrong
Structures that function in chemoreception and are found at the anterior and posterior ends of nematodes are
Answer:
amphids and the phasmids
Explanation:
identify two processes that produce the basalt
Basalt rock formed on the cooling and crystallization of magma released from volcanoes.
What is basalt rock?The extrusive igneous (volcanic) rock known as basalt is black in color, low in silica content, and relatively high in iron and magnesium.
The most prevalent type of lava rock is basalt, which forms as magma, or liquid rock, and rises from the deep Earth at volcanoes. At several of the world's active rifts now, basalt is forming, including those in Iceland, the Red Sea, the East African Rift Valley, and the Rio Grande Valley in New Mexico and Colorado.
Basalt is used in construction (e.g. as building blocks or in the groundwork), making cobblestones (from columnar basalt) and in making statues. Heating and extruding basalt yield stone wool, which has potential to be an excellent thermal insulator.
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If a DNA sample contains 38% adenine, what percent of thymine, cytosine, and guanine must it contain?
Answer:
A and T have the same amount and also C and G:
T=A=38%
C=G=12%
The image shows the beak shapes of four different tinches observed by Charles Darwin on the Galapagos Islands Darwin observed that broad-boaked inches
prefer to eat large, hard seeds, while finches with narrow beaks cat small, soft seeds
What did Charles Darwin infer from this study that led to the development of the Theory of Evolution?
Anches with broad breaks have Nigher survival rules than tinches with nurow beaks
Finches with narrow beaks gradually evolve broader beaks to feed on all types of seeds
The finches evolved from different ancestors with different shapes of beaks
. The finches evolved from a common ancestor and developed different break shapes to adapt to the food available
Answer:
The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Explanation:
On the islands, Charles Darwin discovered several species of finches. He found out that different species of finches varied from island to island. Besides elaborating his thoughts on natural selection, this also helped him in his investigation on the evolutionary changes of the finches. Beaks changed as the birds developed different tastes for fruits, seeds, or insects picked from the ground or cacti. Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits. Shorter, stouter beaks served best for eating seeds found on the ground.
Natural selection is the theory behind evolution put forth by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will typically produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Which observations about the Galapagos Islands did Charles Darwin make?He discovered a remarkable population of plants, birds, and reptiles in the Galapagos that had evolved independently of the mainland, but that frequently differed on nearly identical islands next to one another and whose characteristics he could only explain by a slow evolution of the various species.
Charles Darwin discovered a number of finch species on the islands. He discovered that several finch species vary from island to island. The Galapagos Islands are well-known for being the location where Charles Darwin discovered many previously unknown species of animals, which inspired him to develop the theories of natural selection, survival of the fittest, and evolution.
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What does a generator do?
Answer:
it power's things when you don't have any power
If a cell begins the cell cycle with 46 chromosomes, how many chromosomes will be in each of the two daughter cells produced by cell division?
Answer:
4
Explanation:
Lia's mother had a test to find out more about the baby she is expecting. The partial karyotype indicates: BB for eye color, dd for dimples (dimples are a dominant trait), and XY for sex. What can you tell about this baby?
It will be a boy with brown eyes and no dimples
It will be a girl with brown eyes and no dimples
It will be a boy with blue eyes and dimples
We cannot determine the inheritance from this information
Answer:
Its A
Explanation:
It will be a boy with brown eyes and no dimples. Therefore, the correct option is option A among all the given options.
What is partial karyotype?A karyotype is the overall look of a species' or an individual organism's chromosomes, which mostly includes their sizes, number, and forms. A karyogram, also known as an idiogram, is a graphical representation of a karyotype.
Lia's mother had a test to find out more about the baby she is expecting. The partial karyotype indicates: BB for eye color, dd for dimples (dimples are a dominant trait), and XY for sex. It will be a boy with brown eyes and no dimples.
Therefore, the correct option is option A.
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Name the respiratory structure in the amoeba
Answer:
The respiratory structure of an amoeba is called the mitochondria. This is because amoebas are eukaryotes and use mitochondria to respire.
What is uncoiled stringy DNA called
Answer: chromatin
Explanation:
What is uncoiled, stringy DNA called? It is called chromatin. How many pieces of chromatin does a human diploid cell have? Human diploid cells have 46 pieces of chromatin.
Which of the following is true about RNA?
tRNA brings in an amino acid and bonds with mRNA
mRNA carries the code of rRNA to the nucleus.
mRNA is made from tRNA during transcription.
rRNA helps tRNA make a copy of the DNA gene.
Answer:
The right answer is
tRNA bonds with mRNA, bringing in amino acids.
Explanation:
When during meiosis does crossing over happen?
Answer:
prophase
Crossing over occurs during prophase I of meiosis before tetrads are aligned along the equator in metaphase I. By meiosis II, only sister chromatids remain and homologous chromosomes have been moved to separate cells. Recall that the point of crossing over is to increase genetic diversity.
Explanation:
:)
(04.01 LC)
Which of the following is a molecule with more than one element?
O Atom
O Bacteria
Compound
Organism
Answer:
atom
Explanation:
atom atom atom atom
When women are in labor, the uterus contracts more and more strongly by the actions of a peptide hormone messenger. This scenario is an example of.. * 1 point a negative feedback loop. a positive feedback loop. signal transduction immediately changing gene expression in its target cells. the key role of the anterior pituitary gland in regulating uterine contraction.
Answer:
The correct answer is - a positive feedback loop
Explanation:
Oxytocin is a peptide hormone that is released during labor in women which contracts the uterus and n increase of the oxytocin causes more release of oxytocin hormone to increase the contraction more strongly.
Oxytocin shows a positive feedback loop as its release leads to more of the oxytocin release by stimulates its more release. Most of the hormones show negative feedback release.
Which material should you use so that the area is cool in terms of temperature?
Answer: red bricks
Explanation:
Base your answers to the next question on the diagram below and on your knowledge of biology. The diagram represents a laboratory setup. A starch solution in a test tube was separated from the water in a beaker by a dialysis membrane. One hour later, it was observed that the liquid had risen in the test tube. The rise of the liquid in the test tube that was observed after one hour can be explained as a result of the *
Answer:
water moving from the beaker into the test tube
Explanation:
this was just on a quiz i had and it showed me the right answers after i finished
Osmosis can be used to explain the increase in fluid in the test tube that was observed after one hour.
Osmosis is the movement of water molecules through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration. In this arrangement, the pure water in the beaker has a lower concentration of solute than the starch solution in the test tube.
Water molecules can pass through the dialysis membrane, but larger solute molecules such as starch cannot. Since the concentration of solute in the starch solution in the test tube is higher than in the water in the beaker, the water molecules move through the membrane to the beaker. This flow of water in the test tube increases the level of the liquid by increasing its volume. Therefore osmosis can be used to explain the rise of liquid in a test tube.
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Ok boys, my bio unit test is going to start i want you guys help me pass. Plz answer the right answer, tysm
What's the definition of repel in biology ?
Answer: To resist; to ward off or to draw away by means of force
Answer:
(1) To resist; to ward off. (2) To draw away by means of force. Supplement.
Explanation:
I don't know I looked it up...
Where in the United States is there measurable evidence that the continents are moving relative to one another.
Answer:
the san Andreas fault line
Explanation:
United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
Where is United states?The United States, sometimes known as the United States of America, commonly referred to as America, is a federal republic with 50 states in North America.
The 48 contiguous states that are located in the central latitudes of the continent are joined by Hawaii, an island state in the center of the Pacific Ocean, and Alaska, a state at the far western end of North America.
The conterminous states are encircled by Canada to the north, the Atlantic Ocean to the east, the Gulf of Mexico and Mexico to the south, and the Pacific Ocean to the west.
Therefore, United States is there measurable evidence that the continents are moving relative the san Andreas fault line.
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Whether a mutation is helpful or harmful depends in part on an organism's
A. appearance
B. size
C. health
D. environment
4. Why are rattlesnakes necessary to the balance of life in a forest?
They eat rodents and are eaten by owls and hawks.
They are not useful to the balance of life and are dangerous to humans.
They compete with raptors for the same food source.
They eat insects which and are then eaten by raptors.
The rattlesnakes are necessary to the balance of life in a forest as they eat rodents and are eaten by owls and hawks. Therefore, option (A) is correct.
What are the characteristics of rattlesnakes?Venomous rattlesnakes belong to the genera Crotalus and Sistrurus, which are members of the subfamily Crotalinae. All poisonous snakes are snakes.
Rattlers are profoundly particular, venomous reptiles with huge bodies and triangle-molded heads. Because of their distinctive "rattle" at the tip of their tails, they are one of the most well-known groups of snakes.
Rattlers are tracked down in pretty much all aspects of the mainland US, however they're particularly normal in the Southwest. Additionally, rattlesnakes can be found in South America, Central America, and Mexico.
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Describe the
relationship
between the age
of rock layers and
an unconformity
Answer:
Laws of stratigraphy help scientists determine the relative ages of rocks. This law states that deeper rock layers are older than layers closer to the surface. An unconformity is a gap in rock layers. They occur where older rock layers eroded completely before new rock layers were deposited.
Explanation:
The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earth’s past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s.
Hope this helps!
Brain-List?
1. What is the difference in the base pairing rules for DNA and RNA?
2. The what would be the complementary DNA strand for the following piece of DNA?
ATG GCT CTA CGT AAG
3. How would that change if the complementary strand was RNA?
Answer:
1.
DNA
A-T
G-C
RNA
A-U
T-A
G-C
2.
TAC CGA GAT GCA TTC
3.
AUG GCU CUA CGU AAG
What ecosystem services do you think a grassland might provide for people?
Answer:
covett
Explanation:
non
non at all
(⌐■_■)