Answer:
The active ingredients in many pesticides are chemical compounds that kill organisms such as insects, molds, and weeds. Proponents claim that the use of pesticides improves crop yields and thus protects land and soil by reducing the conversion of forests and wetlands to cropland.
Explanation:
The experiment design would be based on the hypothesis - that higher concentration of the new pesticide product X will result in more mortalities of minnows in the population.
Experiment:
In such type of experiment we required four different tanks with fresh water in each of them and 20 minnows in each as well.Tank 1 with no pesticide would be control in this experiment.concentration of the pesticide in tank 2: 0.05 %, tank 3: 0.1% and tank 4: 0.2%.number of death of minnows in each tank would be count after exposure every day.Experiment should be continue for 30 daysindependent variable: concentration of pesticidedependent variable: number of deaths of minnows each day of exposure.On the given design of the test we can determine whether or not a new pesticide (product X) is toxic to minnows, a type of small fish.
Learn more about experiment design:
https://brainly.com/question/11480093
Which of these objects is NOT found in the biosphere of the Earth?
1.bald eagle
2.great white shark
3.core of the earth
4.tropical rain forest
Answer:
core of the earth
Explanation:
the biosphere is the inside of earth
A DNA strand has the following bases: AGACCATA. What are the bases on its complementary strand?
Answer:
1 AAGCCA
2 ACCGAA
3 TTCGGT
4 CCATTC
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 Division of the cytoplasm - Cytokinesis
3.1.2 Uncontrolled cell growth - Cancer
3.1.3 Chromatids lined up at equator of cell - Metaphase
3.1.4 Chromatids joined at this point - Centromere
3.1.5 Mass of cancerous cells - Tumor
3.1.6 Skin cancer - Carcinoma
3.1.7 Growth and mitosis - Meristematic
3.1.8 Cancer causing factors - Carcinogens
3.1.9 Cancer cells that do not spread - Benign
3.1.10 Replicated half of a chromosome - Chromatid
Explanation:
The division of the cytoplasm is known as Cytokinesis. It occurs during the later part of the division of the nucleus in both mitosis and meiosis. In Cytokinesis, the cytoplasm of a single parent cell divides in two to produce two daughter cells.
Cancer is a disease condition that results when the growth and division of cells is uncontrolled. It occurs as a result of changes to the DNA either due to environmental factors or heredity factors.
Metaphase is one of the four stages in mitosis. During mitosis, the chromatids which are joined at the centelomere line up at the middle or equator of the cell.
Centromere is a region in the chromosome in which sister chromatids are joined together to form a short and a long arm of the chromosome.
A tumour is a swelling of a part of the body due to the abnormal growth of cells in that part of the body. A tumour may have the ability to spread or not.
Cancers that originate in the skin or tissues lining organs is known as carcinomas.
In plants, meristematic tissues are responsible for growth as they consist of actively dividing or mitotic cells. Meristematic cells are present at the tips of roots,stem and branches.
Carcinogens are agents or factors that are able to cause cancers. They include such agents like chemicals, electromagnetic radiations, some viruses, lifestyle factors, etc.
Benign tumours refers to growths in tissues or organs of the body which are non-cancerous as they do not spread to other tissues or organs in the body.
A chromatid is one-half of a replicated chromosome present in the nucleus of the cell. Two chromatids are joined together at the centromere to form the chromosome.
how does the effectiveness of hand washing show the major function of the integumentary system?
Answer:
Handwashing with soap removes germs from hands. This helps prevent infections because People frequently touch their eyes, nose, and mouth without even realizing it. Germs can get into the body through those said body parts and make us sick.
Hope i answered your question! xoxo
*10 POINTS* biologyyyy please helppp
Answer:
A, C, D
Explanation:
It is easier to look for which is wrong rather than checking all if they are right.
B is wrong because population A is growing exponentially and it can be inferred from the graph that it is nowhere near slowing down.
how do sandy beaches from????
Explanation:
waves pounding pebbles into smaller and smaller pieces
Answer:
The answer is D :)
Explanation: have a great day and be safe
What do red blood cells carry?
Answer:
red blood cell carry oxygen
hope it helps.
Answer:
Red blood cells carries oxygen .
hope it is helpful to you
Can you define these words?? Thanks!
Cellulose
Chlorophyll
Chloroplast
Bryophyte
Pterophyte
Gymnosperm
Cone
Angiosperm
Flower
Cuticle
Vascular tissue
Xylem
Phloem
Roots
Root hairs
Stems
Leaves
Photosynthesis
Answer:
Cellulose - It is described as a complex carbohydrate that forms the main constituent of the cell wall in most plants and is important in the manufacture of numerous products like pharmaceuticals, textiles, etc.
Chlorophyll - Any of a group of green pigments that are found in the chloroplasts of plants and in other photosynthetic organisms such as cyanobacteria.
Chloroplast - An organelle found in the cells of green plants and in photosynthetic algae, where photosynthesis takes place.
Bryophyte - Any plant of the division Bryophyta, defined "sensu lato" to comprise the mosses, liverworts, and hornworts, and corresponding to all embryophytes that are not vascular plants.
Pterophyte - It is characterized as any fern(seedless plant) that is a division of Pteridophyta.
Gymnosperm - Any plant such as a conifer whose seeds are not enclosed in an ovary or those who don't bear seeds or fruits. Example; Cycads.
Cone - A cone-shaped flower head of various plants like banksias and proteas.
Angiosperm - Any flowering plant characterized by having ovules enclosed in an ovary and thus, produces fruits, as well as, seeds.
Flower - A reproductive structure in angiosperms and often conspicuously colorful and typically including sepals, petals, and either or both stamens and/or a pistil.
Cuticle - A noncellular protective covering outside the many invertebrates and plants.
Vascular tissue - The complex tissues that consist of various cell types and primarily responsible for transporting liquid and other nutrients throughout the plant or animal body.
Xylem - A vascular tissue in the land plants primarily responsible for the distribution of water and minerals that are taken up by the roots and also the key component of the wood.
Phloem - A vascular tissue in land plants primarily responsible for the distribution of sugars and the nutrients manufactured in the shoot.
Roots - The part of the plant which is generally underground that anchors and supports the plant body. It absorbs and stores water and nutrients, and in some plants is able to perform vegetative propagation.
Root hairs - The rhizoid of a vascular plant or a tabular outgrowth of a trichoblast, hair-forming cell on the epidermis of a plant root.
Stems - The above-ground stalk of a vascular plant that supports individual parts of a plant like leaves, flower, fruits, etc.
Leaves - The green and flat organ that represents the most prominent feature of the most vegetative plants.
Photosynthesis - The process by which plants and other photoautotrophs convert light energy into chemical energy. For example; Plants use air, water, along with sunlight to synthesize their food(carbohydrates and waste oxygen).
POST-lab Question:
Most biological adaptations are specific to a certain habitat, and will not provide an advantage to
an organism that moves outside this environment. What evidence have you
seen in this lab that
would support this idea?
Answer:
me
Explanation:
becesu im the best guy
I need help fast please!
Answer:
Kinetic energy, I think, but I'm not 100% sure
Lilly and her lab partner, Alberto are investigating factors that influence the rate of photosynthesis. They know that any change to the reactants in photosynthesis could have an effect on the production of glucose and oxygen. In doing some research, the pair comes across the data shown above. They decide to brainstorm possible variables they could change in their experiment that could increase the rate of photosynthesis. Evaluate their list of possibilities. Based on the data and your knowledge of photosynthesis, what would you advise Lilly and Alberto to consider changing in their experiment if they wanted to increase the rate of photosynthesis? Choose ALL that apply.
Answer:
A and B
Explanation:
The correct answers would be A, B, and E. Hope this helped. Have a nice day :D
species change over time through a?
Answer:
Evolution
Explanation:
The concept of growth and development and changes , or the hypothesis that species have evolved and formed from previous species, is referred to as evolution. Biological evolution of an organism' features changing over many generations by natural selection. Genetic diversity is needed for evolution to occur.
Which devices can transform the information in vibrating matter into another form of information?
car radio
guitar
jackhammer
microphone
seismograph
Answer: hewo, there! your answer is Below
seismograph and Car radio Would be my Answer
Explanation:
an instrument that measures and records details of earthquakes, such as force and duration.
Hope this helps you!!
Have a great day!!
what is the number of cells at the beginning of meiosis
If a thin haired woman (bb) has a child with a full haired man (B-), then what is the chance each of their boys will be bald?
Please no files that I have to download
i did this in 6th grade and i think there is no chance because the thin haired woman has a non-dominant allele and the full haired man does have a strong allele. so, the man has the dominant gene
What is not true about ocean waves?
They get their energy from the wind.
They can travel long distances.
They transfer energy without matter as a medium.
The greater the wind speed is, the higher the wave is.
Answer:
They transfer energy without matter as a medium
Explanation:
I don't really have one
The organism in the photo is a daphnia, or water flea. Daphnia are tiny aquatic organisms that live in most freshwater habitats. Adults range from less than 1 to 5 mm in length. They are good swimmers and eat mostly algae. Daphnia become mature at 5 to 10 days, and an adult female can produce up to 100 eggs every 3 or 4 days during its 2-month life span. When harmful algae rapidly increase in the daphnia environment, daphnia can develop adaptations to tolerate the negative effects of the algae within 10 years. What characteristic of the daphnia allows the population to adapt to environmental change
Answer:
The characteristic of daphnia which allows the population to adapt to the environmental change is the short generation time.
Explanation:
As evident from the text, the maturity comes in 5 to 10 days and they reproduce for the next 2 months at a rate of 100 eggs every 3/4 days. This is a short generation time which makes the evolutionary changes easy and less time-consuming to incorporate.
What are the four parts of a neuron
Answer:
the dendrites, the cell body (also called the "soma"), the axon and the axon terminal
Explanation:
Answer:
dendrites, the cell body, axon, axon terminal
Explanation:
Because burning fossil fuels creates much pollution, alternatives are being investigated. What might limit the use of wind as a major energy source?
Answer:
There isn't wind all the time, so wind being used as a major energy source is very unlikely.
Answer:
there isnt always a lot of wind so it wouldnt be a reliable energy source
Explanation:
What are some examples of biotechnology?
Answer:
Biotecnología industrial
Los ejemplos incluyen la creación de nuevos materiales en la industria de la construcción y la fabricación de cerveza y vino, detergentes para lavar y productos para el cuidado personal.
la insulina humana, una pequeña proteína utilizada para tratar la diabetes, se produce en bacterias modificadas genéticamente, mientras que las proteínas grandes y más complejas, como las hormonas o los anticuerpos, se producen en células de mamíferos o animales transgénicos
Explanation:
Are humans an example of a placental mammal? Justify
Answer: Humans, of course, are also placental mammals
Explanation: Placental mammals include such diverse forms. They are also some of the most familiar organisms to us, including pets such as dogs and cats, as well as many farm and work animals, such as sheep, cattle, and horses. Sense they are most familiar to us human beings are also placental mammals.
1. The bronchi and alveoli organs are part of which organ system?
(1 Point)
O Digestive System
O Excretory System
O Respiratory System
O Circulatory System
O Lymphatic System
Can you plz help?
Answer:
respiratory system
Explanation:
The bronchi become smaller the closer they get to the lung tissue and are then considered bronchioles. These passageways then evolve into tiny air sacs called alveoli, which is the site of oxygen and carbon dioxide exchange in the respiratory system.
How could a change in the DNA sequence of a single gene affect an organism?
The organism would likely no longer be able to produce offspring.
The gene could code for carbohydrates instead of proteins.
The function of a protein encoded by the gene could change.
DNA could change into RNA.
Previous
Answer:
C .
Explanation:
A scientific study demonstrated that rat mothering behavior impacts the stress response in their pups. Rats that were born and grew up with attentive mothers showed low activation of stress-response genes later in life, while rats with inattentive mothers had high activation of stress-response genes in the same situation. An additional study that swapped the pups at birth (i.e., rats born to inattentive mothers grew up with attentive mothers and vice versa) showed the same positive effect of attentive mothering. How do genetics and/or epigenetics explain the results of this study
Answer and Explanation:
Regarding genetics, the results of the study show that the mother's genetic material does not influence the behavior of rats in times of stress or in the biological responses of rats to these stressful moments. This is because the mice inherited their mothers' genes, but did not show the same results in a stressful situation when they were raised with different mothers.
Regarding epigenetics, however, we can see that the mothers' behavior in relation to the care of rats managed to provoke epigenetic changes that prevented or stimulated the expression of genes linked to stress, in these rats. The rats that were raised with attentive mothers showed a low expression of stress-linked genes, regardless of the biological mother they had. In addition, it is possible to notice that this modification is permanent, since the rats presented this same type of response throughout their lives.
what is meant by photosynthesis
Explanation:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Answer:
The process by which plants turn carbondioxide and water into carbohydrates and oxygen using light energy trapped by chlorophyll, is called photosynthesis.
4. If the rock sample contains 20 mg of tritium 3, how much
will remain after 48 years?
Answer:
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If CO2 is a molecule, how many TOTAL atoms is it made
up of?
Answer:
Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms and one carbon atom.
Explanation:
Answer: No number means one atom. For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom.
Which of the following is a complex relationship between organisms and their environment?
A.)ecosystem
B.)biosphere
C.)abiotic factors
D.)biotic factors
Single celled organisms are part of the ____________________ group
Question 2 options:
Eukaryota
Bacteria
Archaea
All of the above
Answer:
bacteria and archaea
Explanation: Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes—pro means before and kary means nucleus
A place can support a population of 40 wolves. There are 55 wolves living in the area. What will happen to the wolf population?
Select one:
A. it will decrease.
B. It will remain the same.
C. it will increase very fast.
D. It will increase slowly.
Answer:
Well,if this place can only support a maximum amount of 40 wolves and 55 wolves are living in the area, the wolves population will decrease.
Explanation: