Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
Answer:
They theory that all living things are made out of cells.
that's cells are the smallest building block of life.
That cells must be created by pre-existing cells.
How does natural selection affect the evolution of a species?
Answer:
What they chose can cause to get used to it change their evolution.
Explanation:
Answer:
Organisms develop adaptations to survive in a specific environment. If the environment changes, the population will change, because different adaptations
The first birds appeared during which time?
Mesozoic era
Devonian period
Paleocene epoch
Cenozoic era
Answer:
The answer is the Mesozoic era
A student is collecting the gas given off from a plant in bright sunlight at a
temperature of 27 degrees Celcius. The gas being collected is probably
Answer:
Answer is Oxygen.......
Photosynthesis is a type of _______ metabolic pathway and cellular respiration is a type of _____ metabolic pathway.
A
anabolic; catabolic
B
catabolic; anabolic
C
anabolic; anabolic
D
catabolic; catabolic
Answer:
A.
anabolic; catabolic
Explanation:
Anabolic means building up
catabolic means breaking down
What is the melting point of ice?
Answer:
32°F
Explanation:
The melting point is the temperature at which a solid turns to a liquid. The melting point at which ice — a solid — turns to water — a liquid — is 32°F (0°C). Invite the children to record their responses in their Ice Investigator Journals.
what reproduces parthenogenesis
a . hydra
b . honey bee
c . flatworm
d . bacteria
An airplane flies with a constant speed of 768 km/h. How long will it take to travel a distance of 2496 kilometers?
Answer:
The correct answer is - 3 hours 15 minutes.
Explanation:
Given:
Speed = 768 km/h
distance = 2496
Solution:
Converting speed in km/minutes:
768/60 = 12.8
Now by the formula,
Time = distance/speed
time = 2496/12.8
=195 minutes
converting in hour = 195/60
= 3 hour 15 minutes.
Which energy source is the most used in the United States today?
OA nuclear
OB. solar
OC. coal
OD. petroleum
Explanation:
Petroleum is the most used in the United States
An gene has the following nucleotide sequence: TTCAGAGGT What amino acid sequence will the resulting protein have?
Which of the following is NOT considered a scientific property of water?
-Carbon bonding
-Cohesion
-Surface tension
-Adhesion
the first one carbon bonding
Which of these would be considered a structural adaptation? Answer options with 5 options A. a butterfly migrating south for the winter B. a chipmunk living in an underground burrow C. a dolphin jumping through a hoop at an aquarium D. an opossum playing dead E. a woodpecker using his sharp beak
Answer: The correct option is
E. a woodpecker using his sharp beak
Explanation:
This is because a structural adaptations refer to characteristics or traits that animals possess and they use in order to adapt or survive in their environment. These refer to the physical characteristics of the animals.
From the question, a wood pecker using a sharp beak is an example of structural because the beak is the characteristics the wood pecker is using to survive in it's environment.
The unit for the ____________________ of a wave is the Hz, which means "per second."
Answer:
frequency
Explanation:
Answer:
Wave Frequency
Explanation:
I Hope It Helps
I'm like really confused at the moment
William Smith connected strata in different locations by recognizing similar patterns of: A Coal deposits B Mine shafts C Fossils D Canals
Answer:
b
Explanation:
Answer: the answer is C mine shafts... not B at all
Explanation:
Put the following terms in the order they would occur in the angiosperm life cycle. The first one is done.
Pollination, mature plant with flower, formation of fruit with seed, seed germination, Fertilization of pollen with egg in ovary, seed dispersal.
1 New plant
2
3
4
5
6
7
Answer: Angiosperms are the plants which produce flowers for sexual reproduction.
Explanation:
In the angiosperm life cycle the following events occur:
1. Seed germination: Under suitable condition inside the soil obtain water, oxygen and minerals the seed germinates and from the two precursors plumule from where the stem emerge and radicle from where the root emerges.
2. Mature plant with flower: The plant gets matured with the develop of root and shoot and from the shoot the bud originates which produces the flower.
3. Pollination: During the process of pollination a mature pollen grain is transferred towards the female reproductive structure typically the stigma receives the pollen grain.
3. Fertilization of pollen with egg in ovary: The pollen is the male gametophyte which develops in the anthers which are the male reproductive structure of the flower and the egg or ovule is the female gamete which develops inside the ovary or female gametophyte. The fusion of male gametes provided by the pollen grain with that of the ovule is called as fertilization.
4. Formation of fruit with seed: After the fertilization process the ovules develop into seed and the ovary into fruit.
5. Seed dispersal: The fruit gets detached from the plant and it may get rotten and dried the dried seeds disperse and may germinate in favorable conditions.
What do the black arrows mean on the map
Answer:
i belive it means the way the plates moved at one point
Explanation:
please help with this
Answer:D
Explanation:
The portion of a plant which connects the root to the leaf is the .
Answer:
Sorry this is my first answer so it may be wrong but I think its the stem.
Explanation:
Answer:The Stem
Explanation:
what happens after we die ? i'm 100% sure that no ones knows but, anyways.
Answer:
When the moon is full, it is on the opposite side of the Earth from the sun.
Explanation:
Hope it helps!!!!!
Answer:
We go to hell or heaven depending
If u go to hell u will have the most un mercy punishment and if u go to heaven u get to live ur best life
TRUE OR FALSE
water enters the atmosphere when it condenses
Answer: It's false
Explanation:
please brainliest
A gene includes the sequence AGAACT. When it is transcribed, what will the RNA sequence be? A. UCUUGA B. UGCCGU C. UCUUTC D. TCTTGA
Answer:
A
Explanation:
The correct option would be A.
According to the base-pairing rule, Adenine (A) always pairs with Thymine (T) (or Uracil in the case of RNA) while Guanine (G) always pairs with Cytosine (C).
Hence;
A-U
G-C
A-U
A-U
C-G
T-A
Therefore, AGAACT would be transcribed to UCUUGA.
what is A? plsssss helppppp
Answer:
It should be called the amniotic sac-
it's the fluid sac in which the fetus develops (it's also what bursts when it's called "breaking water"
Explanation:
16. Refer to the illustration above. Which of the following correctly indicates the order in which these events occur?
a. "A" "B," "C, “D”
b. "C" “B” “A,” “D”
c. "B," "A," "C" “D”
d. “A,” “C," "B." "D"
Answer:
b. "C" “B” “A,” “D”
Explanation:
C is prophase because the nuclear envelope starts to disappear and the centrosomes divide
B is metaphase because chromosomes line up to form the equatorial plate
A is anaphase because the sister chromatids are separated
D is telophase because new nuclei form around the separated genetic material
How are solids, liquids, and gases of the same element different from each other?
Answer:
Comparison Chart
BASIS FOR COMPARISON SOLID LIQUID GAS
Meaning Solid refers to a form of matter which has structural rigidity and has a firm shape which cannot be changed easily. Liquid is a substance, that flows freely, having a definite volume but no permanent shape. Gas refers to a state of matter, do not have any shape but conform to the shape of the container, completely, in which it is put in.
Shape and Volume Fixed shape and volume. No fixed shape but has volume. Neither definite shape nor volume.
Energy Lowest Medium Highest
Compressibility Difficult Nearly difficult Easy
Arrangement of molecules Regular and closely arranged. Random and little sparsely arranged. Random and more sparsely arranged.
Fluidity Cannot flow Flows from higher to lower level. Flows in all directions.
Molecular motion Negligible molecular motion Brownian molecular motion Free, constant and random molecular motion.
Intermolecular space Very less More Large
Intermolecular attraction Maximum Medium Minimum
Sound speed Fastest Faster than gas but slower than solid Lowest among all
Storage Don't need container, for storage. Cannot be stored without container. Needs closed container for storage.
Explanation:
here!
How do aerobic and anaerobic respiration differ?
A) More energy is released from a glucose molecule during anaerobic respiration than aerobic respiration
B) Anaerobic respiration but not aerobic respiration occurs in human cells
C) Anaerobic respiration requires oxygen while aerobic respiration does not
D) Anaerobic respiration evolved first; aerobic respiration evolved after photosynthetic organisms began producing oxygen
Answer:
D
Explanation:
Anaerobic respiration evolved first; aerobic respiration evolved after photosynthetic organisms began producing oxygen
Answer:
D
Explanation:
Anaerobic respiration evolved first; aerobic respiration evolved after photosynthetic organisms began producing oxygen
How are gene mutations different from chromosomal mutations?
Answer:
Many different chromosome abnormalities have been identified, some of which are associated with genetic disorders and diseases like cancer. Gene mutations are permanent changes in DNA gene sequence. They can arise during normal DNA replication or in response to environmental factors.
Explanation:
hope this helps
A person was hit over the head with a baseball bat during a riot and was killed. The victim was also run over by a car before health had arrived, but was already dead. During the autopsy, he was found to have a broken finger, which it already started to knit itself back together. What was the manner of death?
Answer:
He died as a result base ball bat that was hit on his head and He sustained perimotem injury
Explanation:
This is because, during the root, The person was hit by base ball bat and thus make the person to sustain injury and it result to His death. Perimotem injury refer to injury a person sustained before His death. He died as a result of the injury he sustained during the riots and that lead to his death at the spot before getting to the hospital.
Which of the following statements is true?
A: Organization is important in nature.
B: Organization is not found in nature.
C: Human Beings are organized, but microbes are not.
Answer:
a. organization is important in nature.
Bradley decides one day to run a marathon without any training after 10 minutes is lapsed and Bradley has read half a mile he begins to get cramps in his dies he is also breathing very rapidly what is causing the cramps in Bradley‘s legs
Answer: The reason for the cramps in Bradley's legs are due to anaerobic respiration that has occured in the muscles and also the formation of lactic acid.
Explanation:
The reason for the cramps in Bradley's legs are due to anaerobic respiration that has occured in the muscles and also the formation of lactic acid. This could have been prevented if he had trained before running the marathon as thus will help in providing the muscles with strength.
We should note that in anaerobic respiration, glucose is being broken down without oxygen which is then passed on to the cells. Anaerobic respiration produces lactic acid.
what is the tendons structure?
Answer: A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.
Answer:
A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure.
Explanation:
Tendons are composed of multiple bundles, fibroblast, and dense linear collagen fibrils, which form the macroscopic structure of tendons and give the appearance of fibrous. In general, connective tissue surrounding the tendons allows some friction.
Ace
2. If you needed a quick source of energy, which molecule would you want to use?
A.
carbohydrate
B.
lipid
C.
protein
c proteins .. most used cuz it provides energy and builds muscle