Biología
Biología celular, genética, ecología y fundamentos de ciencias de la vida.
-
which of the following proteins bind to molecules or ions that change t…
c. carrier proteins
-
how many useful gametes are produced in the meiosis of male animals? wh…
- For male animals: 4 useful gametes (sperm) are produced per meiosis. - For female animals: 1 useful gamete (ovum/egg) is produced per meiosis, with the other products being non-…
-
what is the end result of diffusion? a equal concentration of molecules…
a. equal concentration of molecules on both sides of the membrane
-
what are gametes produced in male animals called? what are gametes prod…
1. Gametes produced in male animals are called sperm (spermatozoa). 2. Gametes produced in female animals are called egg cells (ova). 3. The male gamete (sperm) can move on its ow…
-
what happens to a cell that has a rigid cell wall when placed in a hypo…
b. It will swell until the cell is turgid
-
at the end of meiosis i there are four cells. before entering meiosis e…
1. 8 cells result from meiosis II. 2. Each cell has a total of 7 chromosomes. 3. Each chromosome is made up of 1 chromatid.
-
what will happen to a cell that does not have a cell wall if placed in …
b. swell and burst
-
which type of solution would cause a cell that does not have a cell wal…
c. hypertonic
-
a single cell with seven pairs of homologous chromosomes goes through m…
1. 2 cells result at the end of meiosis I. 2. Each cell contains 7 chromosomes. 3. Yes, the chromosomes in each cell are made of sister chromatids.
-
what happens if a plant cell is placed in a hypotonic solution? a becom…
a. become turgid (firm)
-
plant cells tend to do best in a hypotonic environment due to their cel…
Isotonic environment
-
the cell membrane pulls away from the cell wall as the cell loses water…
plasmolysis
-
cells will swell when placed in a solution that is
hypotonic
-
the diffusion of water molecules across a semipermeable membrane and do…
osmosis
-
which of the following is specifically concerned with the transport of …
a. osmosis
-
#1. pour chacune des tables de valeurs suivantes, indique sil sagit dun…
### Partie a) # Explanation: ## Step 1: Vérifier le type de fonction (rationnelle ou linéaire) Calculons le produit \( x \times f(x) \) pour chaque paire : - Pour \( x = 2 \) et \…
-
select the statement(s) that accurately describe the visible light port…
- The colors of the visible spectrum combine to create white light. - It is the only portion of the electromagnetic spectrum that humans can see. - It is made up of all the colors…
-
13. select 2 that apply. in a story that relates a theme of societal in…
- has a responsibility to change things - acts out of a sense of duty
-
15 questions on the anatomy of the lymphatic system : question 1 : what…
the thoracic duct (from the options: the thoracic duct)
-
3. el festival de rio es una fiesta ________. 4. vamos de vacaciones a …
3. El Festival de Río es una fiesta **conocida** 4. Vamos de vacaciones a un sitio **bonito** 5. Mi hermano **mayor** se llama Luis
-
1. what does gfci stand for? answer: ground fault circuit interrupter 2…
GFCls are required near water sources because water is an excellent electrical conductor, so any small ground fault (leak of electrical current) near water can create a severe ele…
-
11) look at the phenotypes of beyonce and jay z. if these two had child…
To answer this, we first assume the genotype for widow’s peak (a dominant trait, let's say allele \( W \)) and no widow’s peak (recessive, \( w \)). Let's assume Beyoncé and Jay -…
-
11) look at the phenotypes of beyonce and jay z. if these two had child…
To solve this, we first need the phenotypes (and thus genotypes) of Beyonce and Jay Z for the widow’s peak trait. Let's assume typical allele notation: let \( W \) be the dominant…
-
question 31 not yet answered marked out of 1.00 flag question which new…
1. c. Social Security Administration 2. b. taxed the colonies without direct representation in Parliament 3. c. signing of the Declaration of Independence
-
10) if wentworth miller is aa, and he and rihanna had children, what ar…
- **Genotypes**: 25% AA, 50% Aa, 25% aa. - **Phenotypes**: 75% with the dominant phenotype (if A is dominant), 25% with the recessive phenotype (if A is dominant over a). (Note: T…
-
question 25 not yet answered marked out of 1.00 flag question the autom…
1. Question 25: a. increased demand for products such as steel, rubber, and gasoline 2. Question 26: a. Military production during the war created jobs. 3. Question 27: a. individ…
-
part 3 - post-lab extension: observing cells with the microscope this p…
1. No, it will not look exactly the same. Real cells have natural variation, slide artifacts, and microscope limits, while the Google Slides images are idealized illustrations. 2.…
-
read the sentences below, filling in the blanks with items from this li…
1. Sulfur 2. molecules 3. water 4. proteins 5. atp 6. genetic 7. disulfide 8. oxygen 9. oxygen
-
what do lipids (predominantly) consist of, besides carbon and hydrogen?…
1. b. Oxygen 2. b. CHNOPS 3. d. Energy Transfer within Cells
-
1. (partially visible) phospholipids are important components of: a. ce…
1. a. Cell Membrane Structure 2. d. RNA 3. c. Process information and send commands 4. d. Carbohydrate 5. a. Oxygen 6. d. Nitrogen 7. b. Carbohydrates
-
22. what is the final step in the digestive process? a. absorption b. d…
22. d. Ingestion 23. d. Adrenal glands 24. c. Promotes rest and digestion 25. b. Oxygen is absorbed into the blood, and carbon dioxide is released 26. c. They filter lymph and tra…
-
15. how does blood return to the heart after circulating through the bo…
15. b. Through veins 16. d. Chyme 17. a. Hydrochloric acid 18. b. To bring oxygenated blood back to the heart from the lungs 19. d. Meiosis 20. d. To increase the speed of signal …
-
8. what role does insulin play in homeostasis? a. it regulates body tem…
8. c. It decreases blood sugar levels 9. b. The response is amplified until a specific endpoint is reached 10. d. Dendrites 11. c. To raise blood sugar levels by prompting the liv…
-
reading a data table: examine the date found in table 1 and answer ques…
1. The two variables tested are amount of light per day and amount of water per day. 2. For plants given the same amount of water, increased daily light exposure leads to greater …
-
4. most of the pictures used in the slides were taken from onion root t…
4. The root tip has an apical meristem with rapidly dividing cells, so many cells are in mitosis at any time, making observation easy. 5. Spindle fibers (microtubules) and centros…
-
4. insect graph a. according to the graph, which group of organisms has…
a. Insects b. Total percentage for all invertebrates: ~97% Percentage for vertebrates: ~3%
-
1. mouse experiment an experiment studies the effects of an experimenta…
The mean number of offspring for the drug group (Group A, 6.9) is higher than the control group (Group B, 5.0). However, Group A has greater variability in litter sizes, with extr…
-
part 1: embryological development and infancy every human being starts …
### Labeled Model Breakdown: 1. **Top (Fertilized Egg):** Label the single fertilized egg as **Parent Cell**; add a note inside/near it: *Contains full set of chromosomes with ide…
-
8. what did the civil rights act of 1866 guarantee? a. segregation laws…
8. b. Legal protection for African Americans 9. a. Ford's Theatre 10. a. It shifted the focus to ending slavery 11. b. Battle of Antietam 12. c. He was killed during a standoff wi…
-
read the following original passage and answer the questions. ethan shr…
1. a. The resilience to overcome adversity 2. b. It signifies his decision to regain confidence and keep fighting 3. c. Interpreting the play's themes 4. c. Using gestures and pos…
-
the boston tea party was largely a response to the british government’s…
1. British government's decision to grant the East India Company a monopoly on the export of tea from Britain. 2. a group of colonial delegates assembled in 1774 that called for a…
-
question 5 why was the declaration of independence a remarkable politic…
1. It helped unify diverse colonial groups by identifying shared problems, grievances, and principles. 2. the Three-Fifths Compromise
-
7. define these terms industrial revolution textile looms labor force y…
1. **Industrial Revolution**: A period of 18th-19th century global shift from agrarian, hand-based production to industrial, machine-driven manufacturing, marked by new technologi…
-
background essay questions 1. how did the industrial revolution change …
1. Before the Industrial Revolution, thread and cloth were made by hand in homes (putting-out system) with simple tools like spinning wheels and hand looms. The Industrial Revolut…
-
an african elephant weighs about 7 tons. how many pounds is 7 tons? (1 …
B. 14,000 pounds
-
depth perception relies on: color differences between objects. visual c…
Visual cues to perceive distance and three-dimensional space.
-
the vestibular sense detects: pitch and frequency of sound. levels of p…
Body position in space.
-
proprioceptors provide information about: taste and smell. body positio…
Body position and movement.
-
the gate - control theory of pain suggests: - pain signals are only pro…
The brain can open or close gates to modify pain perception.
-
nociceptors detect: sound waves. chemical signals in food. pain and tem…
Pain and temperature changes.
-
greg is testing two different types of fertilizer on his tomato plants …
- Both fertilizer A and B: Expected results would be very low average weekly plant growth, <0.2cm - 1.5kg fertilizer A: Increase in average weekly plant growth, increase fertilize…
-
the five basic tastes include: salty, sour, bitter, pungent, and metall…
Sweet, salty, sour, bitter, and umami.
-
multiple-choice question where will the water move to? inside of the ro…
Inside of the root hairs.
-
the root hairs would be considered ________ when compared to the soil. …
Hypertonic
-
the soil would be considered __________ when compared to the root hair …
Hypotonic
-
where would the higher water concentation be? fish cells fresh water re…
Fresh water
-
where is the higher solute concentration? fish cells fresh water rewatc…
Fish cells
-
what would happen to cells placed in an isotonic solution? the gain wat…
Nothing. They stay the same.
-
multiple-choice question what does isotonic solution mean? lesser conce…
equal concentration
-
when cells are placed into a hypotonic solution (has less solute than t…
They gain water, swell up, and could burst.
-
inquiry loop 1 independent reading: year of the tiger \ancestors and le…
B. Our legacy is the love and memories that we leave behind. ### Question 2 (PART B)
-
1. what happened to alice wong’s friend, stacey park milbern? a. she mo…
C. She passed away during the pandemic in 2020. ### Question 2
-
fill in the blank question a small cavity in a tissue such as bone or c…
lacuna
-
which development changes are associated with puberty? a. social change…
D. physical changes
-
fill in the blank question a connective tissue sheath surrounding a car…
Perichondrium
-
which of the following is a sign of puberty? a. intense changes in horm…
D. all of the above
-
fill in the blank question heat production and weight loss is associate…
brown
-
one milestone in the development progress of children is the developmen…
F
-
fill in the blank question the rubbery connective tissue that is relati…
Cartilage
-
multiple choice question what is a chondrocyte? fat cell cartilage cell…
B. cartilage cell
-
multiple select question select all that apply where is adipose tissue …
A. under the skin B. surrounding the eyes D. within the breasts
-
multiple choice question what is a lacuna? ○ a hole in the bone through…
a little cavity within a tissue where cells become trapped
-
multiple choice question which type of tissue forms the tip of the nose…
cartilage
-
multiple choice question which type of fat generates heat? white brown …
B. brown
-
which of the following statements about bacterial motility is correct? …
Flagella are the most common structures enabling movement in bacteria.
-
a change in the allele frequency of a small population due to random or…
Genetic drift
-
over many generations man has chosen certain desirable characteristics …
artificial selection
-
this type of evolution occurs very slowly over very long periods of tim…
Gradualism
-
if two individuals can mate and produce fertile offspring, they belong …
Species
-
which sequence correctly describes the hypothesized steps in the origin…
Abiotic synthesis of organic molecules → Formation of macromolecules → Origin of self-replicating molecules → Formation of protocells
-
what is the primary purpose of the scientific method? to solve problems…
To solve problems through logical steps
-
which of the following is an accurate characteristic of bacterial cell …
They prevent cells from shrinking in hypertonic environments.
-
which statement best describes the endosymbiont theory? it suggests tha…
It proposes that small bacteria were engulfed and begin living inside larger cells and eventually became organelles.
-
siblings have similar traits because they inherit those traits from a c…
The correct option is: "Similarities can be seen among related organisms, which shows common ancestry." (the third option among the four, assuming the four are ordered as: first t…
-
biology shows us the fossil record and comparative anatomies. chemistry…
biology, chemistry, and geology
-
what is the value of a transitional fossil? transitional forms are proo…
D. Transitional forms show the evolutionary steps between species.
-
do you think genetic drift would happen more quickly on an island or on…
Genetic drift is likely to occur more rapidly on an island. The effect of drift on frequencies is greater the smaller a population is.
-
a scientist makes the argument that she has found dna evidence that sho…
The option: "Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms."
-
a change in allele frequencies in a population caused when new individu…
Gene flow
-
dogs have a reduced nonfunctional digit on their paws known as a dewcla…
vestigial structure
-
which of these statements best sums up evolution? rapid development of …
B. change in a population through genetic variation over time (assuming the options are labeled A, B, C, D with the first option as A, second as B, third as C, fourth as D)
-
what is the most likely reason that horses and mountain goats have hoov…
A. They have homologous structures because they have a common ancestor.
-
biological evidence and the fossil record which lists the correct order…
A. jellyfish, reptiles, mammals
-
which structures are similar in function, but do not indicate that the …
B. analogous structures
-
australopithecus is an ape that lived in trees, but could walk on two f…
A. Australopithecus is a transitional form between apes and humans.
-
what does it mean to reject a hypothesis? the experiment was not conduc…
The hypothesis is not supported by the data
-
frog populations that live in separate ponds may eventually evolve into…
geographic isolation
-
the sudden appearance of many new species when organisms move into unoc…
adaptive radiation
-
some individuals in a population possess traits or characteristics that…
The traits will become more common among the offspring.
-
which statement about the genomes of prokaryotes is correct? the prokar…
B. Prokaryotic genomes are composed of circular DNA.