Answer:
D
Explanation:
Answer:
D
Explanation:
Pretty obvious lol
Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
Answer:
DNA replicates before a cell divides to give a complete set of genetic instructions to each daughter cell.
Explanation:
PLEASE HELP. I REALLY NEED THIS!!!!
Answer:
In nature, populations are usually evolving. The grass in an open meadow, the wolves in a forest, and even the bacteria in a person's body are all natural populations. And all of these populations are likely to be evolving for at least some of their genes. Evolution is happening right here, right now!
To be clear, that doesn't mean these populations are marching towards some final state of perfection. All evolution means is that a population is changing in its genetic makeup over generations. And the changes may be subtle—for instance, in a wolf population, there might be a shift in the frequency of a gene variant for black rather than gray fur. Sometimes, this type of change is due to natural selection. Other times, it comes from migration of new organisms into the population, or from random events—the evolutionary "luck of the draw."
I hope this helps a little bit.
9. Why is the synthesis stage called this?
a. because protein synthesis is taking place
b. because DNA synthesis is taking place
c. because it combines several smaller stages into one
d. because the chromosomes come together
In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
Answer:
The S phase and prophase
Explanation:
Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.
The endocrine system regulates the body through hormone release. Like the nervous system, what does the endocrine system help maintain?
A. homeostasis
B. reflexes
C. chemicals
D. neurons
Answer:
How is the endocrine system related to the nervous system in terms of its regulatory activity?
For one, the endocrine system uses chemical signaling (hormones, produced by glands) while the nervous system uses electrical signaling (neural impulses). The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are more short-lived.
Explanation:
Meiosis is necessary for sexual reproduction in eukaryotic organisms. Which of the following statements below regarding meiosis is TRUE? *
A. Meiosis forms two cells all with the same genetic material
B. Meiosis forms two cells all with different genetic material
C. Meiosis forms four cells all with the same genetic material
D. Meiosis forms four cells all with different genetic material
Answer:
D. Meiosis forms four cells all with different genetic material
Explanation:
They are haploid cells and each cell only had one set of chromosomes. Meiosis results in variation.
When a force is applied to a liquid, the force moves
throughout the liquid. *
unevenly
equally
decreasingly
increasingly
The atom shown below is
A. likely to form a covalent bond
o B. likely to form an ionic bond
C. not likely to form any bonds
OD. likely to form double bonds
Answer:
C. Not Likely to form any bonds
Explanation:
Assuming this atom is of neutral charge, it would be neon. We can tell as it has 10 electrons total. 2 in the first shell, 8 in the second. Noble gasses do not form bonds, generally speaking.
Furthermore, any atom, ion or not, that has a full valance (outermost shell) is generally not likely to form bonds.
A male and a female, both with dimples, have a son without dimples. Which of Mendel's laws does this pattern of inheritance illustrate, and how do you know? AND What is the chance that a daughter of these parents would have dimples? Explain your answer.
Answer:
Explanation: Could you have drawn something different in question 3d? Explain. ... yes if both parents are heterozygous. 14 Chance no dimples. 1/4 dd 1/4 no ... If a woman is heterozygous for dimples and has 5 fingers, and a male is ... a Punnett square and calculate genotype and phenotype frequencies to explain your answer.
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According to the Mendel's Law of Segregation. Since, a male and a female, both with dimples, have a son without dimples which mean both the parents are heterozygous (Aa). since both are Aa × Aa there will be Aa, Aa, AA, aa. in which AA is dominant and aa is recessive thus the chance that a daughter of these parents would have dimple is 3/4.
What is Mendel's law of segregation?
Mendel's Law of Segregation states that a diploid organism passes a randomly selected allele for a trait to its offspring, such that the offspring receives one allele from each parent.
Thus, the chance that a daughter of these parents would have dimple is 3/4.
To learn more about Mendel's law of segregation click here:
https://brainly.com/question/21489073
Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What
revision to their initial hypothesis did they come up with?
The answer is two operons control bacterial respiration
Answer:
two operons control bacterial respiration
Explanation:
Carrots that have been cut into pieces have a shorter
shelf life than whole carrots. Explain this observation
using factors that affect rate of reaction.
Science 10
What would happen if the rate of evaporation reduces
Answer:
When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.
Answer:
if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.
Which of the following appear to cause movement of the Earth's tectonic
plates?
Answer:
The force that causes most of the movement is thermal convection, where heat from the Earth's interior causes currents of hot rising magna and cooler sinking magna to flow
Explanation:
Most cells in the human body contain two sex chromosomes. Which type
of cell does not have two sex chromosomes?
Liver cell
Muscle cell
Nerve cell
Red blood cell
Answer:
liver cell
Explanation:
The liver parenchyma is primarily comprised of hepatocytes. Hepatocytes are polygonal epithelial cells with abundant eosinophilic, granular cytoplasm and large, centrally located round nuclei. Hepatocyte nuclei often contain a prominent nucleolus. Binucleated hepatocytes (= containing two nuclei) are not uncommon.
The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.
Answer:
It's the DNA..........
The structure that the virus can use inside a host cell to produce new virus particles is the DNA.
Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.
Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).
It also possess a tail sheath through which it transfers it's DNA into host cell.
Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.
Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.
Learn more here:
https://brainly.com/question/13588500
what is this data saying?
Answer:
Gene flow is the exchange of alleles between two or more populations. For this reason it is sometimes referred to as allele flow or gene migration. While migrating animals often carry new alleles from one population to another, they must interbreed with the new population for gene flow to occur. In the image below, a beetle from a population of brown beetles migrates into a population of green beetles.
Is rr genotype or phenotype
Answer:
Genotype
Explanation:
A plant with wrinkled seeds would have the following genotype: (rr).
WILL MARK BRAINLIEST!!!!!!!
Which choice names the two parts of Earth that make up the lithosphere?
crust and outer part of the mantle
mantle and outer core
inner core and mantle
inner core and outer core
Answer:
crust and outer part of the mantle
Explanation:
lithosphere includes brittle upper portion of the mantle and crust and the outer most layers of the earths structure and it is bound by the atmosphere above the asthenosphere
Which of the following is found in plant cells and NOT in animal cells?
Cell membrane
Cell Wall
Cytoplasm
Mitochondria
HELP!!
the answer is calculated to "Cell Wall"
Explanation:
I'm pretty sure that it's cell wall!
Please help, I have no clue
Answer:
FRESHWATER FISH DUH. LIKE THE PERSON BIHIND ME SAID.
Explanation:
help ASAP! Please! Ill mark brainliest
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Explanation:
b
what is a cladogram and why is it used
Answer:
A cladogram is a diagram used to represent a hypothetical relationship between groups of animals, called a phylogeny. A cladogram is used by a scientist studying phylogenetic systematics to visualize the groups of organisms being compared, how they are related, and their most common ancestors.
Explanation:
please no coments
Answer:
A cladogram is a diagram that shows the relationships between organisms. It is used for scientists to visually see how organisms are related, the common ancestors they have, and allows people to compare organisms to each other.
Let me know if this helps!
Why is it difficult to fossilize large animals?
Answer:
The onerous elements of organisms, like bones, shells, and teeth have a far better likelihood of changing into fossils than do softer elements. One reason for this can be that scavengers typically don't eat these elements. onerous elements conjointly decay additional slowly than soft elements, giving longer for them to be buried.
Explanation:
NEED HELP plzzzzzzz
As amino acids are lined up by tRNA, they form bonds. What is made from very long chains of these amino acids?
A. amino acid complexes
B. mitochondria
C. rRNAs
D. proteins
Answer:
Protiens
Explanation:
Amino Acids are protiens, so after the tRNA join to the MRNA peptide bonds are formed creating long protien chains which are protiens.
Question 1
Ozone prevents harmful X-rays from reaching earth.
( True or false )
Question 2
Ozone layers loss is caused by chlorofluorocarbons.
( true or false)
Answer:
answers are:
ANSWER 1. TRUEANSWER 2. FALSEPLS FOLLOW ME.....
AND ALSO MARK AS BRAINLIST
2. In order to grow, animals with an exoskeleton must
a. Shed their skin
b. shed their shells
C. continue cell reproduction
d. find larger shells to inhabit.
a.shed their skin..
Explanation:
Exoskeleton
A true exoskeleton, like that found in arthropods, must be shed (moulted) when it is outgrown. ... The new exoskeleton is still capable of growing to some degree, however. Animals of the order arthropoda, like lizards, amphibians, and many other animals that shed their skin, are indeterminate growers
Which phrase best defines evolution by natural selection? pls help
Answer:
A process of change in a species over time. Interbreeding among members of a population results in. No change in the relative frequencies of alleles in the gene pool.
Answer:
Process where certain individuals in a population survive because they are better adapted to their environment, so they are more likely to pass on their genes. The mechanism of evolution.
Please help!! I will give brainliest! :)
Which of the following is most likely to happen if a cell is not able to divide?
A. The cell will create two identical daughter cells.
B. The cell will absorb oxygen during photosynthesis.
C. The cell will not be replaced when it is damaged.
D. The cell will not release carbon dioxide during respiration.
Answer:
Correct answer is C. The cell will not be replaced when it is damaged
The six kingdoms of life in order that they evolved on earth ?
name the ecological instrument used in measuring aquatic factors
Answer:
Several tools aid ecologists in measuring abiotic factors, including thermometers, altimeters, pH meters and many other devices.