Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) disruptive selection neutral variation directional selection genetic drift stabilizing selection
Answer:
directional selection
Explanation:
Directional selection is a type of natural selection where individuals exhibiting an extreme phenotype for a given trait are favored over the mean or other extreme phenotype. This type of selection can lead to drastic and fast changes in allele frequencies between generations in a population, being particularly important in speciation processes. Directional selection is common under environmental changing conditions (e.g., weather, climate, food availability, etc) or when individuals migrate to other regions in order to adapt to new environmental pressures.
What is stored energy and where is it in the food chain?
Answer:
At each level in a food chain, some energy is stored in newly made chemical structures, but most is dissipated into the environment. Continual input of energy, mostly from sunlight, keeps the process going. 3.4 Energy flows through food webs in one direction, from producers to consumers and decomposers.
14. What are the three types of muscle?
skeletal, smooth and cardiac hope these helped
What paths do hurricanes follow?
a.) cold deep currents
b.) warm deep currents
c.) cold surface currents
d.) warm surface currents
NEED ASAP
Answer:
Warm surface currents
Explanation:
The path of a hurricane greatly depends upon the wind belt in which it is located. Hurricanes draw their energy from the warm surface water of the tropics, which explains why hurricanes dissipate rapidly once they move over cold water or large landmasses.
I hope i helped! xoxo
RNA is used in the process of translation to build proteins. Which of these correctly describes the role of the different types of RNA in protein synthesis? Choose ALL that apply.
A) rRNA makes up the ribosome. Eliminate B) tRNA carries amino acids to ribosome. C) tRNA carries nucleotides to the ribosome. D) mRNA copies the genetic code from DNA and carries it to the ribosome. E) mRNA code is read to determine the sequence of amino acids in the protein.
Answer:
A, B, E
Explanation:
rRNA is ribosomal RNA
tRNA is transfer/transport RNA, and it brings amino acids to the ribosomes so they can make proteins.
mRNA is messenger RNA
Hope it helps :)
Answer:
rRNA makes up the ribosome.
tRNA carries amino acids to ribosome.
mRNA copies the genetic code from DNA and carries it to the ribosome.
mRNA code is read to determine the sequence of amino acids in the protein.
Explanation:
How does a genetic mutation occur?
Answer:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
Explanation:
mitosis maintains living organisms by which of the following processes?
1. the removal of waste from the body
2. the exchange of gas with the environment
3.the healing of a cut after an injury
4. the formation of sperm and egg
Answer:
3
Explanation:
mitosis helps in the reproduction of identical copies of cells thus helping in the repairing of damaged tissues or replacing worn out cells
How do the densities of the planets support the Nebular Theory?
Answer:
The solar nebula theory explains that planets are formed by solid bits of matter. What that matter is entirely dependent on the gas and substances available.
Explanation:
question reply thank you
Where is the question!?
Which of the following is true about Amoeba? Select all that apply.
They are heterotrophic organisms
They have structures called pskudopods which help them move through water
They are unicellular organisms
They are autotrophic organisms
They are multicellular organisms
They have structures called cilia which help them move through water
Select ALL that apply:
They have structures called pseudopods which help them move through water,They are unicellular organisms,They are heterotrophic organisms.
How we can use codes for Automation and Robotics?
Answer:
to make them move with the code
Please help i am giving away brainiliest
Which of the following is necessary in order for natural selection to act on a
population?
A. selective pressures that favor certain individuals
B. asexual reproduction through mitosis
C. equal chance of survival for all individuals
D. decrease in diversity through genetic drift
No dam links
Answer:
A
Explanation:
Natural selection occurs when an environment makes organisms with certain traits more likely to survive and reproduce.
Asexual reproduction results in no genetic variation (meaning differences in traits, also called divserity). Genetic variation must be present for certain organisms to be better suited to their environment, because in its absence all organisms share the same traits. This rules out B, C, and D. I hope this helps :)
Selective pressures that favor certain individuals are necessary in order for natural selection to act on a population. Therefore, option (A) is correct.
What is natural selection?The process by which organisms are able to pass on the favorable qualities they possess to their offspring is known as natural selection. Organisms that are better able to adapt to their surroundings have a greater chance of surviving and reproducing in that environment. As a consequence of this, advantageous characteristics become more prevalent over time, whereas undesirable traits become less prevalent, resulting in a change in the genetic make-up of a population.
Natural selection can be influenced by a variety of environmental factors, including predation, competition for resources, and shifts in climate. It is a fundamental mechanism of evolution and contributes to our understanding of the diversity of life on Earth as well as the various ways in which different species have adapted to their surroundings.
Learn more about natural selection, here:
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What are three similarities between biotic and abiotic factors?
i will give brainiest if you help me out !!!
Answer:
Both can occur in the same environment. Both can affect the same animals. Both depend on the environment.
2. List five things that are found in terrestrial ecosystems.
Answer:
Explanation:
tundra,
taigas,
temperate deciduous forests,
tropical rainforests,
grasslands, and deserts.
Hope this helped!!!
Match Column A with Column B
Column A
3.1.1 Division of the cytoplasm
3.1.2 Uncontrolled cell growth
3.1.3 Chromatids lined up at equator of cell
3.1.4 Chromatids joined at this point
3.1.5 Mass of cancerous cells
3.1.6 Skin cancer
3.1.7 Growth and mitosis
3.1.8 Cancer causing factors
3.1.9 Cancer cells that do not spread
3.1.10 Replicated half of a chromosome
Column B
A carcinoma
B benign
C cancer
D meristematic
E carcinogens
F metaphase
G cytokinesis
H tumour
I centromere
J sarcoma
K anaphase
L malignant
M chromatid
N cell cycle
Answer:
3.1.1 = G
3.1.2 = C
3.1.3 = F
3.1.4 = I
3.1.5 = H
3.1.6 = A
3.1.7 = N
3.1.8 = E
3.1.9 = B
3.1.10 = M
Explanation:
- 3.1.1
Cytokinesis is the process whereby the cytoplasm of a cell divides into two in order to accommodate the already divided nucleus.
- 3.1.2
Cancer is a medical condition that means an uncontrolled division or growth of cells.
- 3.1.3
Metaphase is a stage of mitosis where chromatids line up at the equator of the cell i.e cell plate.
- 3.1.4
Centromere is a point where sister chromatids i.e. replicated chromosomes are joined before separation in the anaphase stage.
- 3.1.5
Tumour is the term given to a mass of cancerous cells. Cells repeatedly divide without control to form a mass called tumour.
- 3.1.6
Carcinoma is a type of skin cancer or rather a cancer that begins in the skin.
- 3.1.7
The cell cycle involves the interphase and mitotic phase. Interphase stage is the stage where the cell grows, multiplies its genetic material and generally prepare while mitosis is the nuclear division.
- 3.1.8
Carcinogens are biological or chemical substances that causes cancers. They are said to be factors that induce cancer.
- 3.1.9
Benign tumor are mass of cancerous cells that do not spread to other parts.
- 3.1.10
A chromatid is the half part of a replicated chromosome. Together, they are called SISTER CHROMATIDS.
Which of the following describes the structure of a
mitochondrion?
Answer the following questions: no links nor files.
Asexual reproduction in plants with flowers is called __________________________
Define Pure:
Answer:
pollination
Explanation:
transfer of pollen grain from the anther to stigma of a plant
this is one characteristic of asexual reproduction, involves only one parent
What does the prefix “geno” mean, and what is a biology term that uses PSR?
Answer:
The prefix for "geno"- Race, Kind, Family
PSR- Phosphate Starvation Response
Explanation:
Someone pls answer my last question smh
Answer:
let me see what it is
Explanation:
Answer:
ok
Explanation:
ubicación corporal del gusto
Answer:
La sensación de sabor se percibe utilizando dos sentidos corporales simultáneamente: el gusto, detectado en la boca, principalmente en la lengua, y el olfato, radicado en las fosas nasales, en donde se detecta el aroma
What determines the kind of genes an organism possesses?
1.
type of amino acids in the cells of the organism
2.
sequence of the subunits A, T, C, and G in the DNA of the organism
3.
size of simple sugar molecules in the organs of the organism
4.
shape of the protein molecules in the organelles of the organism
Su
Answer:
2.) sequence of the subunits in the base sequence of the DNA
Which of the following do NOT explain how fossils can be used to support claims of common ancestry and as evidence of evolution?
Fossils show extinct species that are no longer modern.
Transitional forms show intermediate states between ancient and modern species.
Fossils can show the original purpose of the vestigial structures in modern species.
Fossils show the similarities between modern and extinct species.
What do you think would happen to the population of rabbits, if the population of foxes decreased?
Answer:
the population of rabbits might increase
Explanation:
With less predators to eat them, the rabbit population will likely go up if the fox population decreases; assuming there are favorable factors such as plenty of food and habitat for the rabbits. At some point, there is a maximum limit to the number of rabbits that a certain location can hold. Once this limit is reached, (some of) the rabbits will migrate elsewhere or unfortunately die off.
As the rabbit population increases, the fox population may rebound and start increasing again. This is due to more food being available to the smaller amount of foxes, and there is less competition for food. So the rebounding fox population will likely bring down the rabbit population to a point where food will get more scarce for the foxes. This cycle repeats itself where one population increases while the other decreases, and vice versa. They are very strongly linked together. It's also possible that both will increase together if environmental factors are favorable, but they could easily decrease together if a habitat is being destroyed for instance. It will depend on the circumstance.
2. Is the following sentence true or false? As a cell increases in size, it usually makes extra copies
of its DNA.
Answer:
false
Explanation:
What is meant by a carbohydrase?
List five of the other subject areas involved in the study of ecology
Answer:
1. Organisms
2. Populations
3. Communities
4. Ecosystems
5. Biomes
Explanation:
help if you know thank you x
Answer:
C. O2 (Oxygen)
Explanation:
Before genetic engineering, insulin for diabetics was extracted from the pancreases of slaughtered animals. This was good because it gave diabetics the insulin they needed to maintain their blood sugar levels.
Can you think of any disadvantages of this practice?
This is due today and I really need help
Answer:
There is a chance that the person receiving that insulin will get a bad immune response, and there is a possibility that the animal might have a disease or infectious organisms, that their insulin might contain, and putting it inside a human might transmit that disease.
Explanation:
What is formed inside the nucleus, then leaves and travels to the ribosome for protein synthesis?
mRNA
rRNA
tRNA
ZRNA
Answer:
tRNA
Explanation:
have to have 20 characters
what is the atomic number of this atom?
Answer:
6
Explanation:
The atomic number should be 6. Atomic number is determined by how many protons are in an atoms. In the diagram, 6 protons are shown in the nucleus.