生物
细胞生物学、遗传学、生态学与生命科学基础。
-
look at the cell in the figure below. this cell must be undergoing ____…
D. meiosis; homologous chromosomes
-
which of the following events occurs in meiosis but not in mitosis? pro…
synapsis of pairs of homologous chromosomes
-
after telophase i of meiosis, the chromosomal makeup of each daughter c…
B. haploid, and the chromosomes are each composed of two chromatids.
-
what is crossing over? the movement of genetic material from one chromo…
the exchange of homologous portions of nonsister chromatids
-
scientists attempted to produce a hybrid plant that was the result of t…
22 chromosomes
-
which of the following types of cells would be produced by meiosis? a d…
D. a haploid animal cell
-
look at the cell in the figure. based on this figure, which of the foll…
This cell is diploid.
-
due tomorrow, 8:00 am industrial rev causes hw 100 points add class com…
The causes of the Industrial Revolution included availability of natural resources, growth of overseas trade, technological innovations, a released labor - force from agriculture …
-
4. if the tennis team wins this tournament. a. if the tennis team wins …
A. If the tennis team wins this tournament, it will go on to the regional finals.
-
3. by watching and imitating their mother. a. learn by watching and imi…
C. Tiger cubs learn to hunt by watching and imitating their mother.
-
3. antibiotics would be effective against which of these infections? (n…
Cholera, Whooping cough, Syphilis
-
patient: \this is alice jameson. i am feeling terrible. i think i have …
1. Did not ask for more details about condition and no alternative solutions offered. 2. Worsening of patient's condition, patient seeking care elsewhere. 3. Receptionist calls ba…
-
infections caused by viruses select the diseases that are caused by vir…
Influenza, Measles, Warts, Herpes, Chickenpox, COVID - 19
-
3. antibiotics would be effective against which of these infections? (n…
3. Cholera, Whooping cough, Syphilis 4. Viruses are intracellular pathogens, and therefore, there is often host cell damage with antiviral treatments 5. Vaccine development
-
1. which drug targets can be found on both bacterial cells and viral pa…
1. None of the choices are possessed by viruses. 2. Bacteria 3. Cholera (checkmark), Cold sores (empty box)
-
about how to add users, faye recommends using new google accounts with …
I agree. It's important to respect people's privacy, and we want all users to feel safe in our fan community.
-
question 10 of 10 a fetus has been developing for three months. what wi…
C. External sex organs form.
-
question 9 of 10 a couple has twins. one is a male and one is a female.…
C. They are fraternal twins, because they do not have the same DNA.
-
question 8 of 10 how does pregnancy begin? a. a placenta forms in the u…
D. A sperm reaches an egg in the fallopian tube.
-
question 7 of 10 how do fraternal twins form? a. eggs are fertilized in…
D. One egg from each ovary is fertilized.
-
question 6 of 10 what happens a few days after fertilization? a. a zygo…
C. The placenta begins to form.
-
question 5 of 10 which happens to a developing child first? a. growing …
B. Growing vocal cords
-
question 4 of 10 which best describes what happens to a developing fetu…
B. The organs grow larger.
-
question 2 of 10 what is a zygote? a. a ball of about 100 cells b. a sp…
B. A sperm fused with an egg
-
question 10 of 10 which is a gamete? a. testis b. steroid c. sperm d. p…
C. Sperm
-
question 10 of 10 which is a gamete? a. testis b. steroid c. sperm d. p…
C. Sperm
-
interpreting a passage this is as it should be, for our nation is found…
follow the Brown v. Board of Education ruling because it is the law
-
question 9 of 10 what happens to cause a female to begin puberty? a. ho…
A. Hormones are released by the endocrine system.
-
question 8 of 10 where does a fertilized egg attach? a. ovary b. uterus…
B. Uterus
-
question 7 of 10 what is the purpose of the part of the male reproducti…
B. Stores sperm cells until they mature
-
question 6 of 10 which part of the female reproductive system is highli…
Since no image is provided to identify the highlighted part, we cannot accurately choose from the options. But if we were to describe each option: A. Cervix: The lower part of the…
-
question 4 of 10 the hormone levels during the menstrual cycle are show…
D. The ovary would not release an egg.
-
question 2 of 10 which correctly describes a difference between the mal…
D. Males produce more gametes.
-
question 8 of 10 which of the following is an example of a feedback loo…
B. The thyroid gland reverses the action of the parathyroid gland.
-
question 7 of 10 how do the nervous system and endocrine system work to…
D. Nerves send messages to glands.
-
question 4 of 10 what are hormones made from cholesterol called? a. exo…
C. Steroid hormones
-
question 2 of 10 how are the nervous system and the endocrine system di…
A. Only the nervous system can send information to certain cells with certain receptors.
-
question 10 of 10 which makes viral infections difficult to defeat? a. …
B. The immune system must attack the body's own cells.
-
question 8 of 10 which best describes how a vaccine works? a. it increa…
D. It creates a small infection to help the body fight later infections.
-
question 7 of 10 what is the first defense the body has against a virus…
A. Mucus
-
question 6 of 10 what structures allow t cells to locate and destroy in…
D. Macrophages
-
question 5 of 10 which is part of the nonspecific immune response? a ki…
C. Inflammation
-
question 4 of 10 what does the lymph system do? a. produces white blood…
A. Produces white blood cells
-
question 3 of 10 which is the most common type of white blood cell? a. …
A. Neutrophils
-
question 2 of 10 why do doctors check for swollen lymph nodes? a. memor…
A. Memory cells are stored in the lymph nodes.
-
question 1 of 10 what is a b cell? a. an antigen that makes antibodies …
D. A lymphocyte that makes antibodies
-
question 9 of 10 a doctor examines the solid waste of a patient. which …
B. The presence of simple sugars in the feces
-
question 7 of 10 which would be evidence that a persons pancreas is not…
B. The person does not have enough digestive enzymes.
-
question 6 of 10 after the esophagus, which comes next in the alimentar…
D. Stomach
-
question 5 of 10 which enzymes break down proteins? a. proteases b. lip…
A. Proteases
-
question 4 of 10 which best describes food when it reaches the small in…
B. It has been broken down into small proteins.
-
unit 1.2: mc quiz ap psychology (s1 p02 rm h108) barno, matthew / unit …
A. Tolerance
-
question 1 of 10 what is the role of the liver? a. it produces bile. b.…
A. It produces bile.
-
question 8 of 10 how do the nervous system and skeletomuscular system i…
A. Nerves send the messages that make muscles move.
-
ap psychology (s1 p02 rm h108) barno, matthew / unit 1: biological base…
B
-
question 5 of 10 a scientist finds fossae on a bone sample. what can th…
B. This bone was near blood vessels or organs.
-
question 4 of 10 what is the next step in muscle contraction after the …
A. Myosin binds to actin
-
question 3 of 10 what type of muscle aids in the digestion of food? a. …
B. Smooth muscle
-
using a table to solve a mixture problem fernando purchased 1 pound of …
$4.8$
-
question 8 of 10 what is the difference between white and red blood cel…
No correct option provided. But if we must choose the 'least wrong' one, A has some truth as white blood cells defend against bacteria, though red blood cells don't coagulate woun…
-
question 4 of 10 why do problems with the heart lead to difficulty brea…
D. The circulatory and respiratory systems work together.
-
11.1.4 quiz: respiration and circulation question 3 of 10 a structure i…
D. It carries blood toward the fingers.
-
question 10 of 10 which explains why the reflex reaction is important i…
B. It takes time for signals to travel all the way to the brain.
-
question 9 of 10 which is a part of a neuron that receives messages? a.…
B. Dendrite
-
question 8 of 10 what two nervous systems balance each other to provide…
B. Parasympathetic and sympathetic
-
question 6 of 10 when you touch something hot, a neuron in your finger …
A. Ions flow into the neuron.
-
question 5 of 10 what do sensory neurons do? a. connect the brain to th…
C. Detect feel and smell
-
question 3 of 10 what are organs made of? a. tissues b. nonliving mater…
A. Tissues
-
question 1 of 10 which type of tissue coats surfaces? a. epithelial tis…
A. Epithelial tissue
-
question 25 of 25 a population of mice lives near a stream. the larger …
A. Directional selection
-
question 24 of 25 which is a kingdom? a. plantae b. arthropoda c. mollu…
A. Plantae
-
question 23 of 25 why would a finch population that lives on an island …
B. The island finches have more behavioral isolation.
-
question 22 of 25 what is a cuticle? a. a small organism that lives in …
C. A waxy coating on a plant
-
question 20 of 25 which increases the rate of speciation? a. reproducti…
A. Reproductive isolation
-
question 19 of 25 humans and gibbons have two different amino acids in …
A. They have a recent common ancestor.
-
question 18 of 25 which type of organism is the most complex? a. verteb…
A. Vertebrates
-
question 17 of 25 what are the fixed alleles in the human species? a. t…
D. The alleles that everyone has
-
question 16 of 25 an organism is found that has the following traits: •…
D. Animalia
-
question 15 of 25 which is most likely an example of a vestigial struct…
A. Tailbone of a human
-
question 14 of 25 which organisms are most closely related? a. aimophil…
D. Mergus serrator and Mergus merganser
-
question 13 of 25 how many kingdoms are there in the domain eukarya?
D. 4
-
question 12 of 25 which is a correct interpretation of the cladogram sh…
B. Sponges evolved after amoeba.
-
10.5.2 test (cst): computer - based unit test a. dogs are the outgroup.…
D. Dogs evolved before koalas.
-
question 11 of 25 what is gene flow? a. when the population drops sudde…
C. The transfer of genes from one gene pool to another
-
question 10 of 25 why did dna technology lead to more use of cladistics…
B. It showed new evolutionary relationships between animals.
-
question 9 of 25 an organism has the following traits: - multicellular …
B. Eukarya
-
question 8 of 25 what is an effect of adaptive radiation? a. geographic…
C. Many new species form
-
question 7 of 25 why did the development of vascular systems help plant…
D. It made it possible to move water within the plant structure.
-
question 5 of 25 which is the largest level of classification of these …
A. Phylum
-
question 4 of 25 which is an example of genetic drift? a. females choos…
B. Allele frequencies change randomly each generation.
-
question 3 of 25 a scientist studies a species of bird in which the mal…
A. The females choose mates.
-
question 2 of 25 which of these organisms is a vertebrate? a. amoeba b.…
D. Dog
-
question 1 of 25 what did eukaryotes most likely evolve from? a. prokar…
A. Prokaryotes
-
question 10 of 10 a scientist helps a colleague do a better experiment …
B. sharing the cost of an expensive tool or instrument
-
question 6 of 10 which of the following describes a benefit of membersh…
A. Genetically modified organisms are exchanged among investigators.
-
question 10 of 10 a paleontologist finds a plant fossil that shows evid…
B. It was a land plant.
-
question 9 of 10 what is a gametophyte? a. a haploid form of a plant b.…
A. A haploid form of a plant
-
question 9 of 10 what is a sporophyte? a. a haploid form of a plant b. …
A. A diploid form of a plant
-
question 8 of 10 which is an adaptation that helped plants survive on l…
A. Production of seeds
-
question 7 of 10 which best describes the earliest land plants? a. prod…
C. Did not grow very tall