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stepladder [879]
3 years ago
8

Which causes a decrease in the amount of dissolved oxygen in a lake? A. lower temperatures B. fertilizer runoff C. overfishing

Biology
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

A. Lower temperatures

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Punnett squares provide an easy way to predict the possible genotypes for an offspring, but it is not practical to perform a Pun
castortr0y [4]

Answer:

True

Explanation:

There are certain limitations associated with the Punnett Squares. They are not useful in case of complex genetic inheritance such as linkage between two genes. In case of linkages it becomes difficult to estimate the distribution of genotypes and phenotypes. For example in case of  Nail-patella Syndrome and gene associated with blood group two genes lie on the same chromosome in close vicinity and hence there are high chances of inheritance of these traits in the offspring from the parent thereby causing  random distribution of the two traits. This random distribution cannot be captured through punnet square.  

The same problem is associated in case where a single gene is determined by multiple genes with graded effects of each gene.  

8 0
3 years ago
The mother of an infant child asks the nurse what the right feeding schedule is for an infant. Of the following responses, which
lys-0071 [83]

Answer:

B

Explanation:

The child may go through growth spurts at 7-14 days old, between 3-6 weeks old, around 4 months old, and around 6 months old. So feeding them at that consistency will help in their development.

5 0
3 years ago
When did grass evolve?
uysha [10]
67 million years ago in the form of phyollths (small sllica flecks in grass that make it difficult to digest)
6 0
3 years ago
Explain how Avery discovered the transforming factor.
kondor19780726 [428]

The Avery–MacLeod–McCarty experiment was an experimental demonstration, reported in 1944 by Oswald Avery, Colin MacLeod, and Maclyn McCarty, that DNA is the substance that causes bacterial transformation, in an era when it had been widely believed that it was proteins that served the function of carrying genetic.

4 0
3 years ago
The carrying capacity for a species in an ecosystem is primarily determined by
coldgirl [10]

The carrying capacity for a species in an ecosystem is primarily determined by the resources in the ecosystem.

<u>Explanation:</u>

The availability of food, raw materials, water and other resources in that ecosystem are those factors that is used for the determination of the carrying capacity. The factors such as nature, the levels of wastage accumulation, removal of very important things from the system also determines the carrying capacity. a system's carrying capacity may involve matters such as available supplies of food, water, raw materials, and/or other similar resources.

The main components that determines the carrying capacity of an ecosystem are food and other resources, provided, the humans must not disturb the ecosystem for their self survival. The resources limitations and their availability determines this factor to a greater extent.

6 0
3 years ago
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