21.09.2020

Is a forest area that has been washed away by a flood a primary or secondary area of succession? Predict how long it would take to reestablish itself and describe how it might look at each stage.

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Biology

In school, Brendan has been conditioned to get up from his seat every time he hears the school bell ring. Brendan was sitting at McDonalds eating with friends, when a loud sound similar to the school bell rang from the kitchen. Without even thinking, Brendan jumped out of his seat at McDonalds. Label the following for this scenario: Unconditioned Stimulus (US): Conditioned Stimulus (CS): Unconditioned Response (UR): Conditioned Response (CR):

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In school, Brendan has been conditioned to get up from his seat every time he hears the school bell ring.

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Biology

for six years an artificial fertilizer is used on a apple orchard the orchard is next to a stream which empties in to a slat water bay during the last 5 years resercers have observed an increase in alge in the bay they have also sampled fish populations in the bay each year apex

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for six years an artificial fertilizer is used on a apple orchard the orchard is next to a stream which empties in to a slat water bay during the last 5 years researchers have observed an increase in algae in the bay they have also sampled fish populations in the bay each year apex...

Biology

Which was most likely an effect on society that resulted from improvements in blood handing during world war l and world war ll

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Answer:

Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.

Biology

Which is most likely to help an introduced species become invasive? a low reproductive rate big difference between original and new habitats a strong predator in new habitat great tolerance to a wide range of conditions

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Explanation: with a great tolerance to a wide range of conditions the species would adapt and thrive which would allow it to reproduce and have all it needs to survive, grow, and take over.

Biology

Suppose there are five genes in pumpkins that work additively to affect pumpkin size. A homozygous lowercase allele pumpkin, aabbccddee, weighs 20 lb. Each capitalized allele additively affects the final phenotype by either adding or subtracting weight from the base pumpkin size. The effect of a single capitalized allele is listed in the table. AlleleEffect A +6 B −2 C −3 D +3 E +4 What would the potential size range be for pumpkin offspring produced from the cross between a parent with genotype aaBbCCDdEe and a parent with genotype AaBBCcddEe?

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Answer : 900 kg pumpkins

Biology

The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell. Which of the following changes is most likely to slow down this reaction? Adding more maltose molecules Increasing the volume of the cell Adding more of the enzyme Increasing the pH within the cell

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The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell.

D).increasing the pH with in the cell.

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The maltose molecule can be broken down into two individual glucose molecules with the help of an en

Biology

Which of the following distinguishes why large corporate farms are losing favor with the public? The farms have been raising their prices due to water shortages. The public is upset with the farms’ unnatural farming practices. The farms have been withholding food in order to receive more funding. The quality of the farms’ food has declined since the 1980s.

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Consumers are dissatisfied with the way that large corporate farms are treating nature's natural resources.

Biology

Drag the item from the item bank to its corresponding match. ITEM BANK: Move to Top ChromosomeDNADiploidEggGameteHaploi dMeiosisReplicationSexual ReproductionSperm This is an organism or cell with two sets of chromosomes. This is a haploid cell with half the reproductive information from the parent. This is a cell or organism having half of the diploid chromosome number, symbolized by "n". This is the structure in the cell nucleus that houses a cell s genetic information. This holds an organisms hereditary information. This is a process

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Chromosome DNA Diploid EggGamete Haploid Meiosis Replication Sexual Reproduction Sperm..
This is an organism or cell with two sets of chromosomes.
This is a haploid cell with half the reproductive information from the parent.
This is a cell or organism having half of the diploid chromosome number, symbolized by "n".

Biology

Using the term water potential, explain why the onions ; (i)gained mass when soaked in dilute solutions of sodium chloride (ii)lost mass when soaked in concentrated solutions of sodium chloride

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when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis. Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.