Answer:
The process by which a cell responds to substances outside the cell through signaling molecules found on the surface of and inside the cell. ... Signal transduction is important for cells to grow and work normally. Cells that have abnormal signaling molecules may become cancer cells. Also called cell signaling.
Egg activation, whether initiated by or independent of fertilization, induces a rise in intracellular calcium. This calcium increase often manifests as a signaling wave that traverses the egg and releases it from meiotic arrest and metabolic dormancy.
Which two characteristics describe the most stable ecosystem on Earth?
a. They are near the poles
b they are near the equator.
c. They have high biodiversity
d they have few seed plants
Answer:
They have high biodiversity
High at the equator
Explanation:
This is because a stable ecosystem is the one that occur at equilibrium and have the ability to resist any form of resilience or disturbance and still grow fast. A stable ecosystem have high biodiversity because that are comprises of different plants and animals that are able to live and survive. Species diversity are more at the equator than at than at the poles.
5. If Laura rides her bicycle down a straight road for 500 m, then turns around and rides back to where she
started, her distance is
her displacement?
a. greater than
c. the same as
b. less than
d. can't determine
What happens when the most
limiting factor in an ecosystem is
removed?
Carbon is an organic element found in all life forms. Which of the following occurs through the process of
breaking down carbon-based molecules?
A. Water molecules are transferred through the body.
B. Elimination of waste products occurs.
C. Energy needed for life functions is released.
D. Absorbing of oxygen through pores occurs.
Answer:
C is the Answer.
Explanation:
Carbon is an organic element which when broken down will release energy within an organism.
Process of elimination
A: Wrong because Water has nothing to do with carbon being broken down.
B: Wrong because when carbon is broken down no waste products are being eliminated.
C: Right because Energy is released when Carbon is broken down
D: Wrong because Carbon being broken down has nothing to do with oxygen being absorbed.
The table shows data about abiotic factors of streams in two different watersheds.
In general, a stream with a lower temperature and more neutral pH tends to be healthier. Based on these
criteria, which watershed contains the healthier stream?
Select one:
Watershed 2
Both streams are equally healthy.
There is not enough data provided to answer the question.
Watershed 1
Answer: b
Explanation:
Based on these criteria, the watershed that contains the healthier stream is, that both streams are equally healthy. The correct option is B.
What are abiotic factors?An abiotic factor is a non-living component of an ecosystem that influences its surroundings. Temperature, light, and water are all components of the terrestrial environment.
Abiotic elements in a marine ecosystem include salinity and ocean currents. Abiotic and biotic forces interact to form a distinct ecosystem. Abiotic influences are found in all non-living components of an ecosystem.
They are often made up of both physical and chemical components. Abiotic factors are nonliving components of an ecosystem that influence the environment. Temperature, light, and water are among the examples. Abiotic elements in a marine ecosystem include salinity and ocean currents.
Therefore, the correct option is B. Both streams are equally healthy.
To learn more about abiotic factors, refer to the link:
https://brainly.com/question/10111151
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If the primary consumer level contained 1,500 kcal (joules) of energy, how much energy would be in the tertiary consumer level?
Answer:
15
Explanation:
Divide by 10%
1500
to
150
to
15
Please help this is a 7th grade science problem
Answer:
The Answer is C
Explanation:
Mark me as Brainliest PLEASE
Answer is...
Molecule B
Which of the following describes a scientific theory, such as evolutionary theory? (Check all that apply).
A. When a scientific theory is proven, it becomes a scientific law.
B. It is an explanation for a wide variety of natural phenomena.
C. It is plausible explanation for many natural phenomena that has not yet been fully tested.
D. Scientific theories are the most certain knowledge that can be developed in science.
E. Numerous studies, which have all tested the theory but in different ways, have all converged on the same explanation.
F. There is ample evidence supporting the explanation.
Answer:
b
Explanation:
Evolutionary theory highlights the adaptive value of within-species variability. Optimal biological and behavioral strategies differ depending on the nature of the environmental context as well as the characteristics of the organism such as age, sex, health, or physical size.
15. Which plant is the best example of this life cycle adaptation?
Some plants produce a large number of
seeds. The more seeds that are produced,
the more likely that some of them will
survive, germinate, and grow. Examine the
bar graph below.
Number of seeds produced
70
30
20
10
0
Plant A Plant B
Plant C
Plant D
Plant
Cells with limited potential to develop into any type of cells are called
Fill in the blank.
1. Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred
tall plant and a purebred short plant, the offspring will all be plants.
2. Tall pea plants are dominant, while short plants are recessive. In a cross between two plants
heterozygous for height, the offspring will be both tall and short in a
ratio.
Answer:
1. The offspring will be all tall pea plants
2. 3:1 is the ratio for tall and short
Answer:
1. tall (or heterozygous)
2. 3:1
Explanation: