Answer:
They have a simple structure; they are spheres made up of a lipid bilayer that encloses fluid that contains a variety of hydrolytic enzymes
Explanation:
a valid hypothesis must be testable true or false?
Answer:
I think it is false.
Is there life on Mars?
Please help ASAP!!! Will give brainliest!!!!
Answer:
no there is no life but there is proof that life could have lived there
Explanation:
To date, no proof of past or present life has been found on Mars. Cumulative evidence suggests that during the ancient Noachian time period, the surface environment of Mars had liquid water and may have been habitable for microorganisms.
Discribe the structure of paramecium
Answer:
The widest part of the body is below the middle. The body of a paramecium is asymmetrical. It has a well-defined ventral or oral surface and has a convex aboral or dorsal body surface. Its whole body is covered with a flexible, thin and firm membrane called pellicles.
Explanation:
Based on its location on the periodic table, how many electrons does oxygen have in its outer energy level? a 3 b 4 c 5 d 6
Answer:
D
Explanation:
Oxygen has 6 valence electrons and it is in group 16 on the periodic table
Answer:
D.
Explanation:
I took the test.
help i will mark brainiest
Which system is the digestive system least connected to?
Answer:
The lymphatic system is not directly connected to the digestive system. The lymphatic system has to do with draining excess fluids in the extracellular space.
Explanation:
Hormones are proteins that regulate many functions in the body, such as growth and cell differentiation. Which of the following does NOT describe a function of proteins in living organisms?
a. They catalyze biochemical reactions.
b. They provide support for connective tissues.
c. They serve as a short-term energy source for the body.
d. They carry molecules from one place to another in the body.
Answer:
D because all the other statements are true
Answer: D
Explanation:
All of the species that live in this tree each use a different part of the tree. If
they didn't, they would compete and only one species could survive. This is
called the
A: competitive exclusion principle
B: carrying capacity
C: symbolism
D: succession
Answer:
competitive exclusion principle
Answer:
competitive exclusion principle
Explanation:
example if a squirrel takes a part of a tree as it's domain no other animal can live,inhabit that place because the squirrel will chase it away to protect it's belongings
Describe how the destruction of a habitat by a natural disaster might affect species diversity ?
what are the differences between sexual and asexual reproduction?
Answer:
Explanation:
DIFFERENCES
SEXUAL REPRODUCTION Sexual Reproduction is a type of reproduction in which one or two organisms or individuals are involved. Fusion of gametes occurs and the offspring’s have different characters. There are sexual organs for both male and female and the organs of both male and female come into contact at the time of reproduction.
ASEXUAL REPRODUCTION Asexual Reproduction is a type of reproduction in which only one organism is involved. There will be no fusion of gametes and The offspring will exactly resemble the parent. There are various kinds of asexual reproduction and some of them are binary fission, budding, fragmentation, parthenogenesis, sports, etc.
Explanation:
asexual
without sexual feelings or associations.
Sexual
acctual feelings or associations.
so then u figure it out from there
PLEASE PLEASE PLEASE HELP PLEASE
Answer:
Search: what is a long term energy storage in both plants and animals
Explanation:
and you get:
Glycogen—A branched polysaccharide which is an important long-term energy storage compound in animals.
____________ blood cells help to fight viruses and bacteria.
Answer:
white
Explanation:
Answer:
White blood cells
Explanation:
..
In normal mitosis, a parent cell , with 23 different types of chromosomes, 2 of each type, produce
a
one daughter cell with no nucleus and the other with two nuclei.
b
daughter cells with 20 chromosomes in one and 22 in another.
c
daughter cells with 23 different chromosomes , but just one of each type.
d
daughter cells with 23 different chromosomes and 2 of each type.
Answer:
B
Explanation:
because my teacher told me
Why are the outer four planets sometimes called gas giants?
They have atmospheres of gas and the inner planets do not.
They are made of gas and are much larger than the terrestrial planets.
They orbit the earth in a different direction than the inner planets.
They are made of mostly ice and do not have a rocky surface.
Answer:
made of gas
Explanation:
Please Help! Which terms describe the periwinkle snails? Select all that aply more than one answer!
a. herbivores
b. heterotrophs
c. secondary autotrophis
d. members of the second trophic level
e. carnivores
f. primary consumers
Answer:
a, b, d, and f.
Explanation:
The periwinkle snails feed on plants. Consequently, they are said to herbivorous and heterotrophic since they cannot manufacture their own foods. They are also referred to as primary consumers because they directly feed on plants without any other nutritional option. They, therefore, occupy the second trophic level on a typical food web.
The correct options are a, b, d, and f.
compare scanning and transmission electron microscopes
brainliest points given!!!
Answer:
is need more context if you want a good strong answer you need to give more information
why are lions smaller than elephants
Answer: Lions are smaller so they can get their pray with out being seen.
Explanation: Elephants are large, and because of this they are slow. So, if a lion was as big as a lion, their pray would see them and they could not catch it and they would go hungry.
c) In dense rainforest, plants that grow close to the forest floor tend to have lower rates of photosynthesis than the very tall trees. Suggest why this might be.
Answer:
The reason why plants that grow close to the forest floor tend to have lower rates of photosynthesis is because sunlight is a vital component in the production of glucose. Using logic, you can see that the tree cause larger shadows to form—blocking sunlight.
True or False. When energy changes form, some energy is lost to heat.
1. True
2. False
Answer:
true
Explanation:
it is making another form it is losing heat i think
Help please. Im timed!
Answer:
First Answer
Explanation:
carnivorous plants are both autotrophic and heterotrophic
The percentage of energy in one trophic level that transfers to the next level in the average ecosystem is 10 percent. Trophic levels are the feeding positions of all organisms that are located in a certain ecosystem. Trophic levels describe what different organisms consume. As energy is transferred from one trophic level to another in an ecosystem, it decreases. Only a small amount of the energy (as little as 10 percent) at any trophic level is moved to the next trophic level. The remaining energy is lost mainly as heat through metabolic processes.
Answer:
See explanation
Explanation:
According to the second law of thermodynamics, energy transfer from one trophic level to another is not 100% efficient. Some energy is lost along the way from one trophic level to another.
The reason for this loss in energy is that the organisms at each trophic level harnesses the energy that they derive from complex organic matter to carry out their own metabolic processes.
Hence, only about 10% of the energy originally derived from complex food materials is passed on to the next trophic level.
Summarily, only about 10 percent of energy derived from food and stored in biomass in a particular trophic level is passed from one level to the next. This is commonly referred to as “the 10 percent rule”. This rule limits the number of trophic levels that can be supported by a given ecosystem.
Answer:
10 percent
Explanation:
Which of the following is defined as the delivery of a litter of pigs?
farrow
ruminant
breed
forage
Answer:
it is farrow!
hope this helps!
Explanation:
is a vacuole found in a plant or animal cell
If carrot sticks are put into water and refrigerated, they become turgid and stiff, but if red blood cells are given the same treatment, they burst or lyse. Explain the difference in the results.
Answer:
Because carrot isn’t the same matter as a red blood cell so if a blood cell gets cold it bursts
Explanation:
They have different chemical compounds
The carrot cells become turgid whereas red blood cells burst or lyse in the given condition due to plant cells have two organelle that prevents it from lysing which are, the cell wall and a large vacuole.
Plant cells have a cell wall around their cell membrane and have a single large vacuole whereas in animals the cell wall is absent and found small vacuoles.
When water moves into a plant (carrot) cell, the vacuole becomes bigger. it causes pressure on the cell wall and increases the turgor pressure within the cell making it stiff. The pressure occurred by the cell wall prevents too much water to enter and prevent cell lysis.It lacks in the animal cells that results in cell lysis due to too much water enters in it.Thus, the difference, in this case, is due to plant cells have two organelle that prevents it from lysing which are, the cell wall and a large vacuole.
Learn more about turgor pressure:
https://brainly.com/question/1806724
According to the fluid mosaic model of cell membranes, phospholipids
Answer:
I wasn't sure what you were asking
Explanation:
The fluid mosaic model explains various observations regarding the structure of functional cell membranes. According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.
3. Natural selection produces change in
a. Individuals during reproductive years
b.populations over multiple breed cycles
c. populations over a single breeding cycle
d. individuals during their lifespan
Answer:
A
Explanation:
natural selection produces change in A individuals during their reproductive years as hormonal imbalances affect the genotypes of each member of a population
Select all Options that are enzymes.
1. Sucrose
2. Lipase
3. Glycerol
4. Trypsin
5. Pepsin
6. Deoxyribose
all of the above are different kinds of enzymes
Organisms become extinct for many reasons. All BUT one is reason for extinction. That is
A) adaptations.
B) over-hunting.
C) climate change.
D) habitat destruction.
Answer:
A) Adaptations
Explanation:
If a species learns to adapt to their environment, then they will not become extinct
Answer:
adaptation
Explanation:
When a organism adapts to its surroundings it docent become extinct instead it survives. It wouldn't make sense that if it were to adapt then it would be extinct. While over hunting is a cause of extinction and so is climate change if the organism is not well adjusted to any temperature. Habitat destruction is also a cause of extinction because it kills the organisms home causing them to not have anywhere to live. So adaptation is the correct answer.
Bacteria were first observed in 1903. True False
Answer:
false, it was first observed in 1676
Explanation:
Answer:
FALSE!!!!
Explanation:
What would I be calculating by counting all the individuals of a population?
Please send an answer quick thank you. By the way this is a science question, to see the whole page click on the picture.
Answer:
i believe its 3) hypothesis
Explanation:
you have to propose a hypothesis to conduct an experiment and make or break the theory