Answer:
Directional selection
Explanation:
This is known as directional selection.
Answer:
Directional Selection
Explanation:
This is known as directional selection.
2.Collect a 5-mL water sample at 8 am at a different location each day for 10 days.
3.Measure the amount of pesticide present in each sample using the same measurement tools.
After analyzing their data, the students conclude that pesticide runoff from farms is not causing the fish to die in the pond. Which of these statements best describes why their conclusion is not valid?
a. The amount of water collected each day was the independent variable.
b. The daily location for sample collection was not a controlled variable.
c. Pesticide measurements were the dependent variable.
d. The time of sample collection was not a controlled variable.
Answer:
D
Explanation:
The samples should not only be collected at 8am. Rather, they should be collected at different times of the day. Time is not a control variable, in this case, only the sample size is. Time of day can influence many factors that affect the pesticide levels in the samples hence the need to collect samples at different times of day too.
Stomata open in the daytime, when there is an abundance of heat energy from the sun that causes evaporation of water, causing the guard cells to become flaccid, allowing the stomata to open.
Answer:
If 7 indviduals of genus euglena reproduce at one time how many individuals result 14 organisms of euglena.
Explanation:
Euglena belongs to the kingdom protista. It is a unicellular organisms which has the ability to make their own food like plants in the process of photosynthesis. Euglena reproduce through binary fission. In binary fission, the body of organisms is divided into two equal parts and each part turns into a complete organism. If 7 euglena reproduce at the same time so 14 euglena are produced.
Burning of fossilfuels and deforestation are the two actions that most likely lead to an increase of carbon dioxide levels in the atmosphere.
The decomposition of buried carbon-based organisms that died millions of years ago produces fossil fuels.
They produce carbon-rich deposits, which are extracted and burned to generate energy. They are nonrenewable and currently provide approximately 80% of the world's energy.
The photo with the smoke from the cars will increase the carbon dioxide in the atmosphere by directly adding carbon dioxide to the atmosphere (as well as other compounds such as sulfur and carbon monoxide).
Thus, the "switch off" photo reduces electricityconsumption, which, if done collectively, may reduce the burning of fossil fuels, lowering carbon dioxide levels in the atmosphere.
For more details regarding fossil fuels, visit:
#SPJ7
Your question seems incomplete, the probable missing part of the question is:
The part of atom that is responsible for chemical bonding is electrons. The correct option is b.
Atomic chemical bonds are formed by electrons. They are subatomic particles with negative charges that move in distinct energy levels or shells surrounding an atom'snucleus.
Atoms interact with one another during chemicalprocesses to produce a more stable electron configuration.
To obtain a full outermost electron shell, sometimes referred to as the octet rule, atoms can either receive, lose, or share electrons. Atoms are able to form chemicalbonds, such as ionic bonds, covalent bonds, and metallic bonds, thanks to this interaction of electrons.
These bonds are crucial for the synthesis of molecules and compounds. The actions and configuration of electrons govern the chemistry and reactivity of elements.
Thus, the correct option is b.
For more details regarding chemical bonding, visit:
#SPJ6
Your question seems incomplete, the probable complete question is:
which part of the atom is responsible for chemical bonding?
a) Protons
b) Electrons
c) Neutrons
d) Nucleus
mitosis produces haploid cells in meiosis produces somatic cells
mitosis produces two daughter cells in meiosis produces four daughter cells
mitosis produces four daughter cells in meiosis produces two diploid cells
Answer:
Mitosis produces two daughter cells and meiosis produces four daughter cells
Explanation:
In mitosis, you start off with one parent cell, and it duplicates itself, so as you could see, you would have the original cell as well as the duplicated version, which is a total of 2. In meiosis, there are two main phases, Meiosis I and Meiosis II. The first phase produces two cells and the second phase takes those two cells to form four daughter cells / gametes
Answer:
I think C
Explanation:
Don't come at me if it's wrong