A short-term environmental change is more likely to negatively affect a population than a long-term change. Due to the fact a short-term environmental change is usually more destructive. For example, a hurricane is short term since it only lasts half a day to a whole day. While climate change is something long-term it’s not a destructive right now.
P.s just copy and paste plus the teacher will love that it’s restated
Answer:
1. DDT (
Dichlorodiphenyltrichloroethane) with molecular formula; C14H9Cl5
2. Lead
Explanation:
1. DDT (Dichlorodiphenyltrichloroethane) is an example of compounds that biomagnifies in the biosphere. DDT is used as pesticides. When DDT is sprayed on plants to kill their pests, part of it is accumulated within the plants.
However, when primary consumers feeds on the affected plants, DDT is passed on to them and then to the secondary consumer in that sequence until it get to the top of the trophic level.
Effects of DDT have been seen in many organisms including birds and humans. The effects seen in humans is quite minimal to that of insects and birds. DDT causes lost of many insects and young birds. In humans, it causes vomiting, seizures etc.
2. Lead: it enters the biosphere by absorption and consumption means. Humans through the use of lead paint, smoking of cigarettes, use of cosmetics and combustion of coal accumulates lead in their bodies. Lead can't be synthesize by human, therefore it accumulates and biomagnify within their systems.
The effects of lead in human include; vomiting, stroke and abdominal pains. In tough scenario, it causes immune system deterioration and cardiovascular diseases.
Answer:
C
Explanation:
Opportunist are organisms that are found naturally in other living organism and only cause disease in the organism when its immune system is compromised for example HIV virus lowers immune system strength by reducing the amount of the CD4⁺ cells available thereby exposing the organism to attack from opportunistic organism such <em>Staphylococcus aureus. </em>The opinion that supports the statement is S.aureus is found in the nasal passages of many healthy people.
Answer:
Following are the answer to the given points:
Explanation:
- Unlinked - Nonrecombinant progeny (50%), recombinant progeny (50%)
- Fully related genetics - 100% non-recombining genetic progeny (parental)
- Incomplete connection of genes > 50% non-recombinant progeny < 50% crossover offspring. Connected genes
Mendel had established some essential concepts concerning inherited mechanisms such as the patterns of transmission of genes to offspring depending on their chromosomal placements. This same notion of linkage was offered to describe the pattern of the legacy of alleles on its chromosomal position.
Two different chromosomes have specific isoforms – for example, A and B which have two different features. As just a result, 50 percent of gametes are parental throughout type AB, and the other 50 percent of a recombinant in zygotes are quasi (aB & Ab) and 50 percent of the progenies that outcome from this mixture of gametes, therefore, are nonrecombinant in 50% and the cloned in 50 percent of the genetic makeup AaBb.
With two fully linked genes, e.g they exist on the very same chromosome and no cross-over occurs, all gametes are similar to parent types (AB and ab), like they do not split themself nor are diverse and culturally produced (nonrecombinants).
Answer:
The given amount of a radioactive substance to disintegrate.
Explanation:
