Answer:
Seed propagation takes place during sexual reproduction. The production of seeds through auto-pollination or crossed pollination ensures some genetic variation.
Explanation:
Seeds ensure the existence of genetic variation between plants. There are two general crossing systems in plants, which depend on pollination type.
Self-pollination occurs when the flower pollen is transferred to the same flower stigma, reaching that individual egg to fertilize it. These are autogamous systems. Crossed pollination occurs when the mature pollen is driven by different pollinator agents from one flower to another, reaching the other flower stigma and fertilizing its eggs. These are xenogamous systems.Sexual reproduction gives more possibilities to different alleles of a gene that did not appear in one generation to express in the next generation. Both types of pollination allow genetic variation, however by the occurrence of crossed pollination there are more chances to ensure the variability of the species and survival to environmental changes. While by self-pollination there are more chances to express the same genotype of the parental plant. The Xenogamous system has the advantage of avoiding the effects of endogamy in a population.
GIVING BRAINLEIST HELP MEEE
Answer:
c
Explanation:
it just is
Due today, please help
The nitrogen bases will only bond with one specific nitrogen base such as A - T and G - C. This is known as:
Complimentary Base Pairing
Could someone help me please and thank you it’s timed
Answer:
electron transport chain
Explanation:
Im not 100% sure but this should be it.
hope this helps! :))
If two objects are moving at a constant speed with the same velocity, what will make the
velocity change?
Answer:
The velocity can change by changing the direction
Explanation:
If the direction changes, then the velocity changes even though the speed is constant. Hope this helps!
How are DNA mutations related to changes in proteins and traits?
Answer:
Mutations in the gene result in an alteration of the protein so that epithelial cells are defective in transporting these ions out of cells. Because less salt is secreted from the cells lining these airways and ducts, there is less water "drawn out" of the cells.
:-))
Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.
Explanation:
Is a chicken egg biotic (living) or abiotic (non-living)? *
biotic (living)
abiotic (non-living)
Answer:
its biotic
Explanation:
Chicken egg is biotic.
What are biotic or abiotic components?
Biotic components are living organisms while abiotic components are nonliving organisms. All biotic components are living components of ecosystem. Bacteria and birds, animals are living components.
Abiotic components are non living components. sunlight, water and temperature are the non living components. Biotic factors are producers, herbivores and omnivores.
Abiotic components are physical and chemical components that act on the living components. In chicken cell the yolk which is living cells.
Biotic components also include the waste from living things and dead organisms. Earth have many biotic components. The surface of Mars has no biotic components.
Therefore, Chicken egg is biotic.
To learn more about biotic components, refer to the link:
https://brainly.com/question/18686232
#SPJ2
A chemical reaction that has the general formula of nA → (A)n is best classified as a
reaction.
Answer:
true
Explanation:
Answer:
Polymerization
Explanation:
multiple choice
Daytime temperatures on Mercury are extremely hot because:
1. it is close to the sun
2. it has long days
3. one side is facing the sun
4. it gives off internal heat
5. there are volcanoes
Answer: it has long days
Explanation:
A moth population living in a deciduous forest relies on camouflage to protect itself from predators. These moths typically vary in
color and are thus able to camouflage among both the light and dark-colored trees of the forest. However, as soot emitted from
nearby factories darkens the forests trees, the moth population begins to evolve. Which of the following distribution graphs best
represents the evolution of this moth population?
The distribution of graph A best represents the evolution of this moth population.
What do you mean by Evolution?Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms.
As soot emitted from nearby factories darken the trees of the forest, it is better to camouflage dark to escape from predators. And in this way evolution of the moth population takes place.
Therefore, the distribution of graph A best represents the evolution of this moth population.
To learn more about Moth evolution, refer to the link:
https://brainly.com/question/2050596
What is the main feature of frog?
Answer:
In general, frogs have protruding eyes, no tail, and strong, webbed hind feet that are adapted for leaping and swimming. They also possess smooth, moist skins. Many are predominantly aquatic, but some live on land, in burrows, or in trees. A number depart from the typical form.
What is a major difference between DNA replication and DNA transcription?
A. RNA molecules produced by transcription are much shorter in length than DNA molecules produced by replication.
B. DNA replication involves the nitrogenous base uracil, while DNA transcription involves the nitrogenous base thymine.
C. DNA transcription only occurs in multicellular organisms, while DNA replication occurs in all organisms.
D. DNA replication takes place in the nucleus, while DNA transcription takes place in the cytoplasm.
Answer: Your answer is A
Explanation: I just took the test
HELPPPPPPPP
Write two sentences that explain the benefits of butterflies being very colorful.
Through which of the following
would a sound wave travel the fastest?
a. Water vapor in the air
b. Water in the glass
c. Surrounding air
d. The glass
Answer:
D. The glass.
Explanation:
Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it.
Hope this helps :D
Which best describes the importance of meiosis to living organisms? *
O genetic variation and growth
O growth and development
O development and sexual reproduction
O sexual reproduction and genetic variation
How does biology affect behavior?
Answer:
some behaviors may have a genetic basis, but genes do not actually control behavior. Rather, our genetic makeup influences how we interact with and respond to our surroundings.
Explanation:
There you go
What happens to the cells at the edges of an injury when a cut in the skin or a break in a
bone occurs?
Explanation:
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When an injury such as a cut in the skin or a break in a bone occurs, cells at the edges of the injury are stimulated to divide rapidly. This action produces new cells, starting the process of healing.
What happens during stage mitosis cell cycle
Answer:
Mitosis is the process in which the nucleus of a eukaryotic cell divides. During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase.
Explanation:
A cactus with the genotype Kkww is crossed with a cactus with the genotype KKWw. Which of the following genotypes will be shared by 25% of the offspring?
A. KKWW
B. kkWw
C. KKww
D. KkWW
Answer: C
Explanation: Think of it this way, which ever has the most is what answer would be. So they come across 3 capitals with K its gonna be KK not kk.
Hope this helps
The genotype is defined as the genetic makeup of an organism, or the set of alleles. The cross between Kkww and KKWw will result in 25% of the progeny having genotype KKww.
The correct option is:
Option C. KKww
Find the attachment for the Punnett square, given below.
The cross between Kkww and KKWw will result in the gametes as:
Kkww - Kw, Kw, kw, kwKKWw - KW, Kw, Kw, kwThe progeny having genotype as KKww will be 4 or 25%.
Therefore, Option C is correct.
To know more about cross and Punnett square, refer to the following link:
https://brainly.com/question/14642557
PLEASE HELP!!! Thank you so much!!
Answer:
math
Explanation:
hhaha
Plants release a different gas back into the air. What is the name of that gas?What is the name of the gas that plants absorb from the air and use to grow?
Cnidarians do not have a nervous system like ours. a. How does it differ from ours?
Answer:
Cnidarians have nerve cells that are organized in a nerve net – a diffuse network where neurons interact wherever they cross one another.
Explanation:
I need help with this (last question I had had the picture all black)
Answer:
I only know A
I think it's the lap
Substances containing mercury would be classified as
Answer:
Toxic waste
Explanation:
Toxic waste are chemical substances which are poisonous, can cause cancer, can cause birth defects and may lead death or severe ailment. Toxic waste can lead to poisoning occurs when ingested, inhaled, or absorbed by the skin.
Examples of toxic wastes are Lead-Acid Battery, Mercury (mercury pollution), Pesticides Pollution, Arsenic in Ground Water etc.
Mercury vapors can cause neurological and behavioral disorders like tremors, emotional instability, insomnia, memory loss and so on.
explain in details the mechanism of transportation in plants
Answer:
Plant transport systems move energy from leaves and raw materials from roots to all their parts. The xylem (tissue) moves water and minerals obtained from the soil to all other parts of the plants.
Explanation:
I hope I helped:)
what is the difference between climate and wheather
Answer:
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location.
:P
Please answer correctly asap. Answer the following question in at least 3 sentences.
1. Explain how the positions of the Sun and Moon affect the ocean tides.
When the gravitational pull of the Sun and Moon are combined, you get more extreme high and low tides. This explains high and low tides that happen about every two weeks. Note: this figure is not to scale. The Sun is much bigger and farther away.
Red blood cells need iron. They store iron abs typically contain more iron than the fluid around them does. Which action would show the blood cells doing active transport?
Answer:
Bringing In Iron
Explanation:
how does Pteromyzon differ from scolidon and labeo fishes?
who answer this question in 10 seconds I'll mark his or her ans. as "BRAINLIST ANSWER"
It's my promise but the answer must not be copied from internet
Answer:
Due to agnathous, no paired fins and scales.
Explanation:
Pteromyzon fish is different from scolidon and labeo fishes because Pteromyzon fish is not a true fish. The main reason for this is that Pteromyzon fish is agnathous means having no jaws and it doesn't have paired fins and scales on their body while all these features are present on the body of scolidon and labeo fishes so we can conclude from this discussion that Pteromyzon fish is different from scolidon and labeo fishes.
What do living things need to live and grow?
Answer:
All living things need some form of water. Most need oxygen.
Explanation:
7.) DURING THE FIRST ERA, THE __________ ORGANISMS EVER ON EARTH WERE
ERA, THE FIRST LIVING
Answer:
The first living organism on Earth are Bacteria in the first era.
Explanation:
Bacteria are the first organism to leave be on Earth. They came into existence about 3.5 billion years in the first era in the waters of small oceans. Then there were anaerobic hetetrophic bacteria because the atmosphere was free of oxygen before. Cyanobacteria then became the first autotrophic organisms and first photosynthesizer that release oxygen to the atmosphere after photosynthesis.