systolic pressure
A
when atrium is relaxed
B
when the ventricles are relaxed
C
when the atrium contract
D
when the ventricles are contracted
PLEASE I HAVE EXAM RN
Which of the following is a true statement about lipids in cell members
A. Hydrophobic lipids heads are attracted to water
B. Hydrophobic lipid fatty acid tails turn turn away(repel)from water
C. A bilayer forms when lipid heads turn toward water inside and outside the cell
D. All are correct
Answer:
it is option B this is correct
Hydrophobic lipid fatty acid tails turn away that is they repel from water as lipids are fat insoluble which are present in cell membrane. Thus, the correct option is B.
What are the lipids in cell membrane?Lipid molecules are hydrophobic in nature. There are three major classes of membrane lipid molecules including phospholipids, cholesterol, and glycolipids. The lipid composition of the inner and the outer monolayers are different from each other, this reflect different functions of the two faces of the cell membrane.
The most important lipid component of the plasma membrane is Fatty acid. An fatty acid is a monocarboxylic acid with a long generally 14 to 24 carbons long chain, it is unbranched, hydrophobic tail which may be either saturated or unsaturated with zero to six cis, non-conjugated double bonds in the compound. The hydrophobic lipid fatty acid tails turn away or repel from water.
Therefore, the correct option is B.
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a species has a better chance of surviving if it has greater variation in its
Answer:
size?
Explanation:
I do not really know, I am not in this unit at all
Are the four daughter cells produced by meiosis identical or unique?
Answer:
i think it's meiosis identical but im not sure please tell me if it's right or not
Answer:
[tex]\boxed {\boxed {\sf Unique \ daughter \ cells}}[/tex]
Explanation:
There are two main types of cell division: mitosis and meiosis. Mitosis makes identical cells for growth and repair.
On the other hand, meiosis is used for sexual reproduction.
In this reproduction, one diploid cell produces 4 haploid gametes/sex cells, meaning they have half of the genetic information. This is so during fertilization, when a sperm and egg combine, the zygote will have a full set of chromosomes.
One of the most important parts of meiosis is called crossing over. In this step, the chromosomes exchange information and create totally unique chromosomes.
This is one reason why siblings, aside from identical twins, can look similar, but not identical!
please help,, i’ll do ANYTHING ,, HELP ASAP
for number 25,, d was fertilization
Answer:
A
Explanation:
when did sexual reproduction have that but anyway its A
why is it beneficial for female peacocks to choose to mate with a male peacock with a full colorful trains?
URGENT
Answer:
Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.
GIVING BRAINLIEST!!! Who ever gives me an absurd answer will get reported. I am giving all of my points for this ;-;
Jem made a table about precipitation, but he made a mistake. Which statement corrects the error in the table?
A) Snow forms when water vapor condenses into water droplets inside clouds.
B) Hail is formed when water droplets collect and freeze into layers to form a chunk of ice.
C) Snow forms when water drops freeze as they pass through a layer of freezing air and form pellets.
D) Water vapor that forms ice crystals that join into flakes is not how snow forms; it is how rain forms.
The cell cycle begins again after
A. synthesis has copied each chromosome.
B. mitosis has formed two identical nuclei.
C. cytokinesis has formed two new cells.
D. differentiation has made cells specialized.
Answer:
C. cytokinesis has formed two new cells.
Explanation:
Cell cycle has different stages called G1, S, G2, and M. ... This is where the cell actually partitions the two copies of the genetic material into the two daughter cells. After M phase completes, cell division occurs and two cells are left, and the cell cycle can begin again.
Evolution can occur in a population when an individual organism adapts to their surroundings, true or false?
Answer:
True
Explanation:
because a new speicies would have just entered their territory and good be a good source of food or could be nice for the land
1. How is the Earth's atmosphere like the insulation of a house?
Answer:
The insulation of a house traps heat in the house to that you furnace is much more energy effevciant in the atmosphere gasses such a carbon dioxide trap heat from the sun in side the atmoaphere.
Explanation:
The main source of energy used by the body is found in?
proteins
carbohydrates
fats
minerals
Elementary students who eat breakfast have higher grades than those that
don't. For this statement, which could be a hidden variable? Check all that
apply.'
A. The income level of the student's household
B. The amount of breakfast consumed
C. The work schedule of the parent or parents
D. Age of the students
Answer: A and C
Explanation:
AP€X
what months can you not eat oursters
Answer:
May, June, July, and August.
Explanation:
*oysters?
The months that do not have an r you can eat oysters. The months that have an r, you cannot eat oysters, which are April, January, February, March, September, October, November, and December.
Expoisoning.
only eat oysters with a letter "r" from the the months of September thru April. I t prevents from getting watery shellfish and food poisioning.
* Do not eat oysters in May, June, July or August*
what are 2 stages of photosynthesis, and where does it take place?
What are the long term carbon stores? What are some of the types of human carbon emissions?
Answer:
What are some of the types of human carbon emissions?
Carbon sources include the combustion of fossil fuels (coal, natural gas, and oil) by humans for energy and transportation and farmland (by animal respiration), although there are proposals for improvements in farming practices to reverse this.
Explanation:
The long term carbon sources are plants while a type of human carbon emissions fossil fuel burning.
The long term carbon sources includes, plants, oceans and other geological forms of carbon that are increasing via sequestration.
The carbon emission occur when carbon sources are burnt such fossil fuels, Jungle fire, and respiration of animals.
Therefore, the long term carbon sources are plants while a type of human carbon emissions fossil fuel burning.
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2) 'Glucose + Yeast ---> Ethyl
Alcohol + Carbon dioxide' is the
equation of : *
O a) Nitrification
O b) Nitrogen fixation
O c) Pasteurisation
O d) Fermentation
Answer:
d. fermentation is the equation
Discuss which type of reproduction is the "best" strategy for continuing a species through time in a changing environment and justify your answer.
Answer:
Any sort of sexural reproduction.
Explanation:
Unlike asexual reproduction, sexual reproduction allows the species being produced to adapt the the changing environment around it to increase the chances of survival. For asexual reproduction, clones are made of the parent and, therefore, cannot withstand any extreme conditions that the parent species couldn't. For a changing environment, sexual is the best to allow the specimen and its offspring to change positively along with the environment.
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John is hiking and notices a small stream of water flowing down the side of the mountain. What part of the water cycle is John observing?
A) Runoff
B) Evaporation
C) Condensation
D) Precipitation
explain why.
Scientists recently discovered that rocks collected from the Franklin Mountains in West Texas and rocks collected
from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks were
chemically and geologically the same and came from the same magma source. This discovery provides evidence
of
А
coastal erosion
B
plate tectonics
с
ocean currents
D
glacial melting
Answer:
Plate tectonics
Explanation:
Plate tectonics explains the features and movement of earth surface in the present and the past.
These plates are pieces of cracked shell that rest on the hot , molten rock of earth's mantle. The heat from the radioactive processes within the planet's inferior causes the plates to move, sometimes towards and sometimes away from each other.
These rocks collected were as a result of plate tectonics which drifted away.
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Which of the following best describes sleet?
A) A liquid form of precipitation that forms in temperatures above 0° C
B) A form of solid precipitation that forms when raindrops freeze
C) Chunks or balls of ice will that will continue to grow larger and become heavier
D) Precipitation that forms in clouds when water vapor freezes into ice crystals
Answer:
b
Explanation:
that defines sleet. sleet is frozen rain
How do wetlands form?
Answer:
groundwater comes to the surface and floods the land
Explanation:
Answer:
Groundwater comes to the surface and floods the land
Explanation:
Wetlands form when water and land meet. Where do we see that it talks about water and land? Well, the last one, when groundwater comes up to the surface and it floods the land, it means that it's touching the land....they meet.
Hope this helped!
Have a supercalifragilisticexpialidocious day!
can someone help me asap
Answer:
30
Explanation:
googel......................
You are not getting enough oxygen for cellular respiration to occur.
Answer:
Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.
Hope this is fine for you✌️how does the structural adaptation of seeds help them survive
Answer:
Explanation:
A seed is a plant embryo wrapped in a protective covering. A fruit is the ripened ovary of a plant which contains one or more seeds.
Most plants are rooted in place, which makes dispersing their fruits and seeds particularly important. Seeds that are spread far from the parent plant avoid competition with their relatives for resources and have the opportunity to colonize new areas. Both fruits and seeds have a variety of adaptations for different types of dispersal.
Examples of the some common types of dispersal follow.
Wind
<-- Left : These seeds are transported by air currents. Small fruit or seeds with fine fluff can be carried high up into the air. Herbaceous plants of open areas (like dandelions, cattails, and milkweeds) often have this adaptation. Their seeds float up over neighboring plants even if the parent is growing low to the ground.
Right -->: The fruit of maple trees are also adapted to catch the wind. Many trees (like ashes and sweetgums) have winged fruits or seeds which drop from the tree and are caught by the wind as they fall.
Water
<-- Left : Sea bean seeds are adapted for dispersal by ocean currents. Sea bean vines grow along rivers and coasts. When the pods ripen, they split open and the seeds drop into the water. The beans have a thick seed coat to keep the salt-water out, and have internal structures which make them buoyant enough to float. They can drift for hundreds of miles before washing up onto land.
Coconuts (which are single-seeded fruits) are also adapted for water dispersal. Like sea beans, they have a thick shell to prevent the salt-water from damaging the seed, and the buoyant hull keeps the nut floating.
Animals: internal transport
<-- Left : Brightly colored fruits advertise for dispersers. They are highly visible to birds, promising a nutritious (and often sugary) reward. The seeds are tough and usually undamaged when eaten. They are dispersed when the bird makes a rest stop.
Right -->: Immature seeds in unripe fruit would die if eaten. The green of young fruit hides them among leaves. Unripe fruit are sour or bitter to discourage animals that do find them. Green fruit cling tightly to the plant, making it hard for animals to remove them.
Animals: external transport
<-- Left: Cockle burrs are dry fruit adapted for animal dispersal. The hooked spines catch on the hair (or socks) of passing animals. Dispersal is complete when the animal picks off the offending burr, hopefully dropping it in a new location suitable for growth.
Right -->: Fruit of the unicorn plant have an unusual adaptation for transport. As grazing deer or antelope walk over them, the spines catch around the animals' feet. When the animal finally gets annoyed and shakes the fruit off, dispersal is complete.
What happens to water in the desert after a flash flood?
Why can't humans go through Asexual reproduction?
Answer:
When humans reproduce, there are two parents involved. DNA must be passed from both the mother and father to the child. Humans cannot reproduce with just one parent; humans can only reproduce sexually. But having just one parent is possible in other eukaryotic organisms, including some insects, fish, and reptiles. These organisms can reproduce asexually, meaning the offspring ("children") have a single parent and share the exact same genetic material as the parent. This is very different from reproduction in humans. Bacteria, being a prokaryotic, single-celled organism, must reproduce asexually.
Please I need this ASAP identify and describe three examples of internal and external factors that regulate cell division
Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells. Two of the most important internal factors are kinases and cyclins..
Can people see the outer layer of the earth from looking out the window? ( yes or no )
Answer: yes
Explanation: there are 4 layers the outer layer is what we live on
NEED HELP ASAP!!!
Animal - Interphase
Animal - Prophase
Animal - Metaphase
Animal - Anaphase
Animal - Telophase/Cytokinesis
Plant - Interphase
Plant - Prophase
Plant - Metaphase
Plant - Anaphase
Plant - Telophase/Cytokinesis
Answer:
plant cell in metaphase
Explanation:
its a plant cell because of the cell wall around it and how it looks like a rectangle and its in metaphase because the chromosomes are in the middle of the cell. hope this helps!
How long does the revolution of the moon around earth takes
Answer:
27 Days
Explanation:
The moons takes 27 days to orbit the earth