Plant and animal cells are classified as what type of cell?
A. eukaryotic
B. prokaryotic
The student is studying the movement of substances across the cell membrane. She understands that some substances combine with special transport proteins to be carried across the cell membrane. The substances can move only from an area of higher concentration to one of lower concentration. This process is known as:
Answer:
Facilitated diffusion
Explanation:
Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.
Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.
Of 1217 offspring produced in a cross of one variety of plants, 919 had violet flowers and 298 had pink flowers. What is the trait in this cross?
Answer:
The trait is the color of the flowers.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Refer to the following information to answer the questions below. A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was 6 feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes
Answer:
Considering the whole progeny ⇒ the probability of having a girl heterozygous for both genes is 4/16 = 1/4 Considering only girls ⇒ the probability of having a girl heterozygous for both genes is 4/8 = 1/2Considering only dwarf girls with normal color vision ⇒ the probability of having a girl heterozygous for both genes is 4/4 = 1Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Scientists in Brazil have developed specific fertilizers and special breeds of soybeans and corn so crops can grow on large areas of tropical lands. This is valuable because farmers can help to feed the growing human population and strengthen the economy. However, trade-offs must be considered because farming on tropical lands can also A add helpful microorganisms to the soil B remove oxygen from the atmosphere C reduce populations of native species D reduce mutations and disease in wildlife populations
Answer:
C reduce populations of native species
Explanation:
The overexploitation of the land by farming practices represents one of the most important challenges that face wild populations and threatened species, representing a concern to biodiversity conservation. Farming practices can destroy the natural structure of the soil, reducing diversity by killing small animals (e.g., insects), bacteria, and fungi that live in the substrate. Moreover, runoff may also carry herbicides and pesticides used in monocultures that can damage aquatic ecosystems, disrupting and killing aquatic wildlife and polluting water sources. Some ecological farming methods that help to reduce biodiversity loss include, among others, the use of natural fertilizers, diversification of crops, biological pest control, etc.
The anticancer drug Taxol was originally extracted from the bark of the Pacific yew tree. This drug is an example of a type of ecosystem service known as
Answer:
Provisions
Explanation:
It's most likely Provisions because Provisions is an example of a type of ecosystem service.
stions
Describe what a muscle fiber looks like and what it
can do.
Answer:
Smooth muscle fibers have an oblong shape, much like a football. They’re also thousands of times shorter than skeletal muscle fibers. Similar to skeletal muscles, cardiac muscles are striated. They’re only found in the heart. Cardiac muscle fibers have some unique features.
Explanation:
What is the molecule in this image?
amino
acid
amino
acid
A. A carbohydrate
B. A nucleic acid
C. A protein
D. A lipid
Answer:
C
Explanation:
because it is a polymer of amino acid so it will be a protein
hope it make sense:)
definicion de cromatidas
Teeth of herbivores are always..................................
Select one:
a.
pointed and help them grinding plant
b.
Flat for grinding plant
c.
sharp for tearing meet
Which is a feature of DNA that could allow you to distinguish between a DNA sequence that is protein coding and a DNA sequence that is not
Answer:
Protein-coding sequences are single stranded; others sequences are double stranded.
What stage of mitosis is depicted by the image above?
O metaphase
telophase
O prophase
O anaphase
cytokinesis
Answer:
telophase
Explanation:
because the chromatids are pulled to the opposite sides
Please help me answer the following question.
Answer:
1a and 4b equals -59
rufjjfjvufjf
Help ASAP!!!
Which describes one effect of the sea level change that occurred during the last ice age?
Answer:
1
Explanation:
Mostly because it was the BIGGEST thing that really happend during said event. The others happend yes but not as majorly as number 1.
Why do you think leaves have stomata on their underside only? Explain.
Not really sure about this answer so can someone give me the correct one
If you conducted the analysis portion of Experiment 2, you calculated
the rate at which the percentage of fish with a complete pelvis
decreased in that ancient lake. Do you think the same rate of change
would apply to modern fish populations?
Answer:
ibk- xuqe- wup
only show type person come
Which of the following prefixes represents the smallest value?
A. Centi
B. Deca
C. Deci
D. Mega
Answer:
centi
hope this helps
have a good day :)
Explanation:
20 POINTS!
Its for a test!
Answer quick please
The two closely related are the golden jackal and the gray wolf. Hope this helps have a great day!
An invasive species of Asian carp was introduced to the Mississippi River and have thrived. It threatens to eliminate many native species of fish. Which of these could be a contributing reason why?
A
The invasive species of fish lay many more eggs than the native species.
B
The invasive species of fish eat a greater variety of foods than native fish, destroying entire ecosystems.
C
The invasive species can survive in more extreme temperatures and water with a lower oxygen concentration.
D
All of these can be contributing reasons.
Answer:
D, they are all contributing reasons.
Genetic factors allow some species of plants to survive in extreme climates while other plants are unable to grow. True or false?
Answer:true
Explanation: the factors can let the plants adapt to the environment
Hope this helps
Each body cell present in you now has different sets of genes.
False or True
Answer:
True
Explanation:
Every cell has got different sets of genes. Although they do have the same exact DNA. The set of genes expressed in a cell determines the set of proteins and functional RNAs it contains, giving it its unique properties.
What is Puzzle 3 Summer break escape room kesler science answer?
List two possible advantages of asexual reproduction to the organisms who reproduce sexually.
List two possible advantages of asexual reproduction to the organisms who reproduce sexually.
Well heelo there! i shall help chu! ^v^Asexual: Requires 1 organism.
Sexual: Requires 2 organisms.
The advantages of asexual reproduction are:It's fasterThere is more production Organisms that are born are exactly the sameI hope this helps! I apologize if i'm wrong // and your welcome if i'm correct!(-Side Note-): if you don't mind can you please mark me brainliest?
Explain the larger impact of fish farming on the environment.
Explanation:
The most common negative environmental impacts that have been associated with aquaculture include: waters eutrophication, water quality, alteration or destruction of natural habitats; introduction and transmission of aquatic animal diseases (FAO, 2006a).
How are hydrogen bonds related to polarity?
Answer:
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions
Explanation:
What would be the complimentary side of this DNA molecule?
TAG CCA TTG CGT GCC TGG CAAT
a part of neuron that carries impuleses away from the cell body is
Answer:
axon
Explanation:
also called nerve fibre
An object at ___ stays at ____ or an object that is ____ at a _____ in a straight _____ keeps moving at that _____ unless another _______ acts on it.
Answer:
an object at rest stays at rest or an object that is moving at a velocity in a straight line keeps moving at that velocity unless another force acts on it
What is the most commonly seen trait in human and/or animals?
Answer:
language skills
Explanation: