What sentence that is true about Charles Darwin.
a. He was born in 1809.
b. He was an English naturalist.
c. He was 42 when he began the voyage on the Beagle.
d. The voyage lasted five years and took him around the
world
Answer:
I think it's D but I'm not sure
remove dirts using hard cloth
Answer:
It can easily remove dirt.
Explanation:
When dirt is present on the hard surface such as car or machines so it can be cleaned by using hard cloth because the dirt attached tightly to the surface which can only be removed from that surface with the help of using hard cloth. Hard cloth has rough surface which easily remove the dirt from the surface as compared to the light cloth so that's why hard cloth is used to remove dirt from the surface.
State four (4) differences between a plant cell and an animal
need help:)) will mark brainliest if right! i need help explaining too
Which of the following statements regarding genetic information is true?
Genetic information is transmitted to the next generation through DNA, and sometimes RNA molecules.
Both prokaryotes and eukaryotes can contain plasmids.
Prokaryotic organisms have circular DNA.
a, b, c
a, b
a, c
b, c
Answer:
a,b,c are correct
Hope it helps you
Please help! Just one question! :)
Answer:
semiconservative
Explanation:
Which level of organization is formed from two or more different tissues that group together and perform a function? (4 points) Molecule Organ Organ system Tissue
Answer:
i think system is correct
Explanation:
for example heart is an organ. it has muscle tissue .epithelial tissue . connective tissue nervous tissue
Complete the blanks in the following sentence from the multiple-choice selections below.
Figure 1 illustrates that when orcas started eating sea otters, the sea otter population [blank 1], the urchin population [blank 2], and the kelp population [blank 3]. _______
a. decreased, decreased, decreased
b. decreased, increased, decreased
c. increased, decreased, increased
d. dincrease, increased, increased
In trophic webs, any change affecting one of the links affects the superior and the immediately anterior link. Option b) decreased, increased, decreased.
What is a trophic web?
The trophic web is the interaction between different organisms involving transference of energy when some of them feed on the other ones. The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
• The first link corresponds to a producer organism -autotroph-.
• The following links are the consumers -heterotrophs-: herbivores and carnivores.
• The last links are the decomposers that degrade organic matter from dead organisms.
Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.
Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
To answer this question, we need to think about predatio-prey relationship.
In this food chain we know that
Urchins feed on kelp. Sea otters feed on urchins, and orcas feed on sea otters.So, the more orcas there are, the less sea otters there will be, because many orcas are feeding on them. Sea otters' population decreases in size.
↑ ocas ⇒ ↓ sea otters
Since there are fewer sea otters, the urchin population will be able to increase in size, because they are not affected by sea otter predation as they used to be.
↓ sea otter ⇒ ↑ urchins
Finally, the more urchins there are, the more affected kelp will be, because predation on them by urchins increases.
↑ urchins ⇒ ↓ kelp
The correct option is then option b. decreased, increased, decreased
↑ ocas ⇒ ↓ sea otters ⇒ ↑ urchins ⇒ ↓ kelp
decrease increase decrease
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Charles Darwin referred to this as survival of the fittest. Over time, it results in changes in the inherited characteristics of a population. A. Natural Selection B. Evolution. C. Genetic Variation D. Extinction
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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
as humans grow, their bodies change. Which of these statements explains how humans grow?
A. cells from a cell wall
B. cells undergo mitosis
C. cells increase in size
D. cells merge to become larger
Answer:
B. cells undergo mitosis
Explanation:
Many organisms increase in size over time. However, it is not because the cells are increasing in size. It is because of mitosis, in which the cell are multiplying in amount, or increasing in number.
Please help this will help me pass high school I just need this one answer please will like it
Answer:
B
Explanation:
Interphase is when a cell is growing, replicating its DNA, and carrying out cell processes. Which of these is correct regarding its occurrence? A) at It does not occur before mitosis and occurs once before meiosis. b)It occurs once before mitosis and twice before meiosis. c)It occurs once before mitosis and once before meiosis. d) It occurs once before mitosis and does not occur before meiosis.
Answer: C) It occurs once before mitosis and once before meiosis.
Explanation:
Answer:
C) It occurs once before mitosis and once before meiosis.
Can someone write the first paragraph
Hii!!
The purpose of mitosis is to create two new perfectly identical cells when either there is a need to replace old or damaged cells and to reproduce asexually by making new cells. Some organisms use mitosis to replace body parts. For example starfish replace lost arms by mitosis. Some organisms such as the hydra use mitosis to produce genetically identical offspring.
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres
2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell)
3) Anaphase: sister chromatids are pulled to opposite poles of the cell
4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin
● The order of the stages of mitosis can be remembered using the mnemonic PMAT.
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What happens to the air around your vocal cords when you speak?
a. It is heated
b. It is cooled
c. It is forced down your windpipe
d. It expands and contracts
What is a biodigester?
Pls answer...
Answer:
A system that biologically digests organic material
A biodigester is a system which biologically digest organic materials..
how do you think the study of heredity may help the human race in the future
This helps determine which traits are passed down from parent to child. Successful traits are more frequently inherited and change species over time.
What is heredity?Heredity refers to the specific mechanisms by which characteristics or traits are passed down through generations via genes. Genes contain the instructions for producing specific proteins.
Normally, heredity is defined as the process by which an offspring inherits predisposed characteristics from its parent cell.
It is the process of passing down genetic traits from parents to offspring, which is initiated by recombination and gene segregation during cell division and fertilization.
Understanding genetic factors and genetic disorders is essential for learning more about health promotion and disease prevention.
Some genetic changes have been linked to an increased risk of having a child with a birth defect or developmental disability, as well as developing diseases like cancer or heart disease.
Thus, this way, the study of heredity may help the human race in the future.
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1. A is a tall narrow container with a small neck,
Answer:
Container farms are shipping containers as shell and insulated according to climate conditions. Used or new shipping containers are both can be used as outer shell but shipping containers strength is important for long lasting. The shipping containers are used for these container farms because they are compact, available to transfer everywhere in the world, they are solid and can be customized as a plug and grow machine.
Explanation:
not sure tho
help please!!! it’s due in 2 hours!
Explanation:
1.) The action of admitting someone into a secret and obscure society or group, typically with a ritual.
2.) The action or process of lengthening something.
3.) The action of termination something or the fact of being terminating.
what is mass.........................................?
Answer:
something that takes up space
Explanation:
how homologous structures and vestigial structures are evidence of evolutionary relationships.
Answer:
Due to presence of these structures in ancient as well as modern organisms.
Explanation:
Homologous and vestigial structures are the evidences that show evolutionary relationships between organisms because these structure were also present in the ancient ancestor of that organism. These homologous and vestigial structures shows the relationship between the ancient and the modern organisms. Some structure has a purpose and function in the body of ancient organisms but with the passage of time those structure are useless and have no function in the body but these structure shows connection between modern and ancient organisms.
Genes determine the_____of an individual.
Answer:
traits of an individual
Explanation:
Emest Rutherford's atomic model included a nucleus comprised of positive particles called protons. Later, James Chadwick discovered neutrons. How did
Chadwick's discovery change the atomic model?
A The new model showed a negatively charged nucleus.
B. The new model showed a neutrally charged nucleus
C. The new model showed a larger electron cloud.
D. The new model showed a nucleus with two types of particles
Answer:
D
Explanation:
It can't be A as nuclei must be positive.
It can't be B as nuclei must contain at least one proton, and no electrons.
Technically C may be true, but the question is asking about the nucleus. Not the electron cloud. Electrons aren't found in the nucleus. Only protons and neutrons.
what does DNA need to replicate
In order to replicate, DNA needs the help of a lot of enzymes and primers (helicase, DNA polymerase, RNA primer, ligase, etc) It is also SUPER important that there is a template for the DNA to replicate off of so that the genetic info is passed on from one generation to the next without any changes or damage to the DNA
the following topographic map shows part if the state park. which area in the park is the steepest?
A. area A
B. area B
C. area C
D. area D
Sand has the smallest particle size and clay has the biggest particle size while silt is in between the two. The correct order will be clay – silt – sand.
What are the generations which has been used in the cross?The first generation crossed which included the true breeding parents are the P generation plant. This produces the two subsequent generations which are the first filial generation (F1) and the second filial generation (F2).
In his breeding experiments, mendel first crossed true-breeding plants to produce a second generation, which were then allowed to self-pollinate to generate the offspring. Gregor Mendel performed series of experiments with pea plant to determine the law that governs inheritance.
In the parental generation (P-generation), He crossed a truebreeding plant that is dominant for a particular trait i.e. a plant that contains the same dominant alleles in its genotype and a truebreeding plant that is recessive for a particular trait i.e. contains same recessive alleles for the same gene.
Therefore, Sand has the smallest particle size and clay has the biggest particle size while silt is in between the two. The correct order will be clay – silt – sand.
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Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA
samples are shown.
Organism
Adenine
Guanine
Cytosine
Thymine
Sea urchin
32.8%
17.7%
17.3%
32.1%
Salmon
29.7%
20.8%
20.4%
29.1%
Wheat
28.1%
21.8%
22.7%
27.4%
Which conclusion is supported by the data in the table?
А
Each organism contains more cytosine than any other base.
В B
The three organisms have the same sequence of nucleotides.
1-35
Rack
Review/ind
Answer:
D
Explanation:
The presence of each base is dependent on the size of the organism. So, the correct option is D.
What is Base pairing?A base pair is defined as the basic unit of a double-stranded nucleic acid, consisting of two nucleobases bound to each other by hydrogen bonds, where they form the building blocks of the DNA double helix and the folding of both DNA and RNA contribute to the structure.
The rules of base pairing are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T), bond with double bondC with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G), bond with triple bond.The base pair also depend on the size of each organism.
Thus, the presence of each base is dependent on the size of the organism. So, the correct option is D.
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Your question is incomplete, most probably the complete question is :
Erwin Chargaff examined DNA samples from different
organisms to study base pairing. Some data from DNA
samples are shown.
Which conclusion is supported by the data in the table?
A. Each organism contains more cytosine than any other base.
B The three organisms have the same sequence of nucleotides.
C. All three organisms contain the same types of nitrogen bases.
D. The presence of each base is dependent on the size of the organism.
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
does anyone know this?
Answer:
No
Explanation:
If the DNA is TACGG what is the complementary RNA after Transcription?
Answer:
TUGCC
Explanation:
7. Slime molds are fungus like protists, but they are not fungi. Why?
Answer:
Because they can move
Explanation:
Fungi cannot make food themselves so they depend heavily on hosts. Also fungi lack the proper cilia to move, so they use spores instead to "move".
In the case of slime mold, they are like an animal fungus per se. They are like Protozoa in their amoeboid plasmodial stage and similar to true fungi in spore formation.
Name three institution involved in different types of biological research in in each institution area of biological research carried out
Answer:
E
Edward Grey Institute of Field Ornithology
Marine Station of Endoume
F
Friedrich Miescher Laboratory of the Max Planck Society
G
Genoscope
German Resource Center for Genome Research