Answer:
B) genetic engineering
Provide a summary of biologist Stephen Stearns’ findings in how Natural Selection may be working today in humans.
Answer:
Stephen Stearns states that natural selection doesn't mean the survival of the fittest organisms, but rather this mechanism is illustrated by the selective reproduction of the fittest. Natural selection can be classified into distinct types, including directional, disruptive and stabilizing selection, which are in turn based on sexual selection. These types of selection are driven by different outcomes that have different dynamics.
Hi, how are you? Could someone help me with this? I would very much appreciate it.
Are the current life forms similar to those of 3.8 billion years ago? How do we know?
Answer:
No, not really. Over time, organisms have grown much more complex. Photosynthesis happened around 3.4 billion years ago and respiration around 2 billion years ago. These all serve as a testimony to the fact that organisms are in fact growing more complex. We have seen photoautotrophs arise, from the simpler chemoautotrophs, and they now in fact dominate the array of producers! Organisms don't only do fermentation now; they can also do anaerobic respiration and aerobic respiration too! Thus, current life forms are a lot more different today than 3.8 billion years ago.
what did robert paine do with the purple star fish
Answer:
This is what i found
5 PLZ HELP 12points+
Select the correct answer.
If the population of rabbits in this ecosystem decreased dramatically because of certain environmental changes, which organisms’ food supply would decrease?
A.
owl and snake
B.
jackal and wildcat
C.
green plant and mouse
D.
goat and wildcat
Answer: B, the jackal and wildcat
what systems do you use when you have a scrape knee
Answer:
cleaning alcohol. polisporin. and bandades
Explanation:
Answer:
You use the immune system
Explanation:
it play a crucial role in the process of wound healing
true or false aerobic cellular respiration produces more atp then anaerobic cellular respiration
Answer:
true
Explanation:
Do you think plants will grow better under a grow light or with the sun? Explain your answer.
Answer:
The Sun
Explanation:
I chose this because i think because the Sun is natural light and the grow light isn't it will grow better,
Matter at rest will:
A. gain Mass
B. Stay at rest
C. Move on its own
D. Gain kinetic energy
Answer:
D. Gain kinetic energy
Lipids are made mainly of
Answer:
Lipids are composed mainly of carbon and hydrogen. but they can also contain oxygen, nitrogen, sulfur, and phosphorous. They provide nutrients for organisms, store carbon and energy, play structural roles in membranes, and function as hormones, pharmaceuticals, fragrances, and pigments.
Explanation:
I hope this helps! :)
Answer:
triglyceride.
Explanation:
Choose an organism to use as an example.
Answer:
Bacteria
Explanation:
humans, plants, fungi and bacteria are a type of organism
WILL MARK BRAINIEST PLS HELP!
Using the traits and alleles from this chart, indicate the possible genotype(s) for the following plants:
22. Homozygous wrinkled ……………………………………………………………..
23. Homozygous round …………………………………………………………………..
24. Round heterozygous…………………………………………………………………..
25. Green hybrid…………………………………………………………………..
26. Heterozygous green pods…………………………………………………………………..
27. Yellow pods…………………………………………………………………..
28. Short stems…………………………………………………………………..
29. Tall stems…………………………………………………………………..
30. Yellow seeds…………………………………………………………………..
31. Pure tall stem ………………………………………………………………….
32. Homozygous tall stem…………………………………………………………………..
33. Heterozygous tall stem…………………………………………………………………..
Answer:
look below
Explanation:
22. rr x rr
23. RR x RR
24 Rr x Rr
25. ??
26. Gg x Gg
27. gg x gg
28. ll x ll
29. Ll x LL
30. YY x YY, Yy x Yy
31. LL x LL , Ll x Ll
32. LL x LL
33. Ll x Ll
What is displacement of metals?
Where is DNA located in your body?
Answer:
DNA is in the nucleus of nearly every cell in your body.
Explanation:
DNA is housed in the nucleus because it is the genetic material and needs to be protected.
Answer:
The DNA is located in the nucleus.
Explanation:
Humans and animals are EUKARYOTES which means we have a nucleus, where the DNA is stored. PROKARYOTES do not have a nucleus to the DNA is stored in the cytoplasm.
~Anna
Which of the following is a renewable resource used for human needs?
A) rocks
B) fossil fuels
C) water
D) minerals
Water is a renewable resource used for human needs. So, the correct option is C.
What are Renewable resources?Natural resources that regenerate with time and can be used endlessly without getting exhausted are known as renewable resources. These resources are often derived from sources such as sunlight, wind, water and biomass that can regenerate or replenish themselves.
Because they provide a source of energy and materials that can be used without negatively impacting the environment or depleting resources, renewable resources are an important component of sustainable development. Water is a renewable resource used for human needs.
Renewable resources are becoming more and more important as a sustainable alternative to non-renewable resources such as fossil fuels, which are limited and can adversely affect the environment.
Therefore, the correct option is C.
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A biologist analyzes DNA sequences in three different primates. She finds primates "A" and "B" have almost exactly the same DNA sequences. DNA sequences in primate "C" are significantly different from those of primate "A" and primate "B". This information allows the biologist to infer that
Answer:
primates A and B are more closely related to each other than they are to primate C
Explanation:
The study and the comparison of DNA sequences of various species is used in decoding genomic information as well as determining closely related or distant related species.
Closely related species are known to have almost the same DNA sequences when studied. For example, chimpanzees are known to be most closely related to humans and this because, studies show that they share about 99% of their DNA with humans. So also, although monkey is a primate, its DNA sequences is significantly different from humans and chimpanzee, making it less closely related to either humans or chimpanzee compared to the relationship between human and chimpanzee.
Which of these describes the gravitational force from a planet?
Choose the correct answer.
large and pulls objects toward itself
small and pulls objects toward itself
large and pushes objects away from itself
small and pushes objects away from itself
the distance from earth to the north star is about 430 light years. which of the following statements describes why scientists use the light year unit to measure distances in space?
a. a light year unit is very small and distances in space are very small
b. a light year unit is very small and distances in space are very large
c. a light year unit is very large and distances in space are very small
d. a light year unit is very large and distances in space are very large
Answer:
i am not sure but i think is D
A light year unit is very large and distances in space are very large. So, the correct option is D.
What is Light year?A light year is defined as the larger unit of length which is used to express astronomical distances and is approximately equal to 9.46 trillion kilometers or 5.88 trillion miles.
A light-year is expressed as the distance that light travels in a vacuum in one Julian year, which is 365.25 days because it includes the term "year", the term light-year is sometimes misunderstood as a unit of time.
1 light-year = 9460730472580800 metres
Light year is used as a unit to express distances to celestial objects, for example, if a star is 4 ly away from earth, it means that light from the star will take 4 earth years to reach us.
Therefore, a light year unit is very large and distances in space are very large. So, the correct option is D.
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ATP molecule What molecule(s) is produced by these activities?
Answer:
Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules
Explanation:
Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules
If you drive at 100 m/s for 36,000 s how far will you go ?
Answer:
Distance = 3,600,000 m
Explanation:
Distance = Speed × Time
Distance = 100 × 36,000
Distance = 3,600,000 m
Which resource is a renewable resource?
A. Coal
B. Gemstones
C. Metal
D. Trees
Answer:
d. trees
Explanation:
cuz i took the quiz on edge
What do you think the word biodiversity means? Why is biodiversity important for the stability of ecosystems?
Answer:
Biodiversity refers to the variety of species in an ecosystem. Generally, ecosystems with high biodiversity are more likely to survive environmental changes. Therefore, biodiversity is important to ecosystem stability.
why is it important for your body to return to its balanced and steady state
Answer:
to maintain a constant body temperature
Explanation:
the following facts are true about resource A
. it grows in nature and takes about five years to reach a mature size.
.it can be replanted after it is cut down
resource A is most likely an.
A. inexhaustible resource
B. nonrenewable resource
C. recycled material
D. renewable resource
Answer:
Option D, renewable resource
Explanation:
A renewable resource is the resource which can be replenished after every use. Or in general the time taken by it to replenish must be small. For instance, fossil fuels too are renewable but the time taken by them to renew is too high and hence they are also considered as non-renewable.
Also renewable resources can be used again and again.
Hence, option D is correct
Which of the following molecules link together to form starch? A. Glucose B. Galactose C. Fructose
A carbohydrate is broken down into smaller sugars, this is an example of what type of energy?
A.chemical
B.mechanical
C.sound
D.nuclear
2. What are the two types of ecological succession?
Answer:
There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.
Explanation:
Answer:
Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.
"I hope it helps you it was a pleasure to help you".
Explanation:
Help.. 14 _____ are substances that can cause cancer.
15
Scientists join cancer cells with antibody-producing white blood
cells to produce _____.
Answer:
14. Carcinogenic
15. Not sure. I believe it is monoclonal antibodies.
Which explanation below is the most accurate regarding animal and plant adaptations for survival in a desert biome
Answer:
i think its C sorry if I'm wrong
Explanation:
The most accurate regarding animal and plant adaptations for survival in a desert biome is
Animals in this biome tend to have scaly skin to save water and stay cool; plants have thick roots that capture water.
What is the desert biome?Deserts are extremely dry environments that support a diverse range of plants and animals. Deserts are classified into four types: hot and dry deserts, semi-arid deserts, coastal deserts, and cold deserts.Plants adaptationPlants in the desert are succulent, storing water in fleshy leaves, stems, or roots. Water absorption is well developed in the root system. The stem in these pants also performs photosynthesis. Their stems and leaves have a thick cuticle that protects them from excessive transpiration. To avoid excessive water loss, desert plants use the CAM pathway.Animals adaptationAnimals in the desert exhibit a variety of adaptations. Snakes, for example, come out in the open only at dawn or dusk. To avoid the heat, some small desert animals live in burrows.Camels, for example, store fat in their hump. This allows them to go a long time without food or water.Thus, we can conclude that Animals in this biome tend to have scaly skin to save water and stay cool; plants have thick roots that capture water. which is option C.
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Suzy knows that an individual’s sex is determined by sex chromosomes. She knows that females have two X chromosomes and males have one X and one Y chromosome. She creates the Punnett square cross below to show sex inheritance. She wants to know which parent determines the sex of a baby---is it the mother, father, or both? Complete this cross. What would you tell Suzy? Why? Suzy knows that an individual’s sex is determined by sex chromosomes. She knows that females have two X chromosomes and males have one X and one Y chromosome. She creates the Punnett square cross below to show sex inheritance. She wants to know which parent determines the sex of a baby---is it the mother, father, or both? Complete this cross. What would you tell Suzy? Why?
She creates the Punnett square cross below to show sex inheritance. She come to know that both parent determines the sex of a baby and it is when you put xx and xy on a punnet square there are equal amounts male and female.
How Human sex gets decided?Human sex gets decided by the function of SRY gene which possessed by with or without of Y chromosome. The hormone of anti-mullerian and testosterone produced from cells when activating the SRY gene. It generally confirms the development of single-male reproductive systems.
The scenario in humans, the sex ration gets affected by the male parent's hormone level. Also, in XY sex evaluation system, the sperm of male takes part in X or Y chromosome whereas the ovum from female contributes to X chromosome. This greatly results in offspring - either male (XX) or female (XY).
Therefore, She creates the Punnett square cross below to show sex inheritance. She come to know that both parent determines the sex of a baby and it is when you put xx and xy on a punnet square there are equal amounts male and female.
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which bone layer holds calcium and other minerals
Answer:
In addition to its mechanical functions, the bone is a reservoir for minerals (a "metabolic" function). The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range. If blood calcium gets too high or too low, the muscles and nerves will not function. In times of need, for example, during pregnancy, calcium can be removed from the bones. This process is carefully regulated by hormones and is discussed more completely in the section about hormones.
Explanation:
Answer:
its the um (dont quote me ) phophorus im pretty sure
Explanation:
