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Bas_tet [7]
4 years ago
11

What is a eukaryote, and when did eukaryotes first arise?

Biology
2 answers:
konstantin123 [22]4 years ago
8 0
Eukaryotes are bigger
Vilka [71]4 years ago
5 0
An organism whose cells contain membrane-bound organelles and whose DNA is enclosed in a cell nucleus and is associated with proteins.

The first eukaryotes appeared between 1.5 and 2 billion years ago.
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15
s344n2d4d5 [400]

OPTIONS:

a. When there are just two other people at the party.

b. When everyone is wearing a nametag.

c. When there are more than 50 people attending the same party.

d. When the need for help from the person who is having a heart attack is very clear

Answer:

c. When there are more than 50 people attending the same party.

Explanation:

Bystander effect is a term used in social psychology to describe the tendency of an individual to intervene in the event of an emergency to offer help to the person needing it, when others are present at the scene of the emergency.

In the case of an emergency just like the scenario stated in the question, where someone develops a heart attack at a dance party, if the party has more people, the slimmer the chance of the person getting help from any of the 50 people at the party, as the presence of others would tend to discourage the any individual from attempting to help the victim having the heart attack.

The situation that would more likely show the bystander intervention effect is <em>"c. When there are more than 50 people attending the same party."</em>

5 0
3 years ago
Transcription produces<br> Translation takes place in
kodGreya [7K]

Answer:

Transcription produces  ✔ mRNA .

Translation takes place in the  ✔ ribosome .

Explanation:

7 0
3 years ago
Read 2 more answers
Cattle egret follow herds of cattle and feed on both the insects stirred by the movement of the cattle and the biting insects th
kirill115 [55]

Commensalism relationship is shown between cattle egret and cattle.

Usually cattle egrets follow herds of large hoofed mammals such as cattle, buffalo. They eat the insects that have been stirred up by the buffalo as they move. This relationship is commensalism, because the birds benefit but the ungulate is neither harmed nor helped.

The cattle egret and grazing cattle in a close association is a classic example of commensalism. It is a common sight in rural areas where one can see ticks hovering over the cattle. They feed on cattle's blood and hence are harmful to them as they can transmit several diseases. The cattle egret and grazing cattle in a close association is a classic example of commensalism. It is a common sight in rural areas where one can see ticks hovering over the cattle. They feed on cattle's blood and hence are harmful to them as they can transmit several diseases.

To learn more about commensalism , here

brainly.com/question/14224704

#SPJ4

8 0
2 years ago
3. The diversity of organisms present on Earth is the result of--
alexgriva [62]
A. Ecosystem stability
8 0
3 years ago
Natural selection is based on the idea that as an environment changes, an individual’s genetic makeup will change suddenly to su
erastova [34]
<em>yes it is right because if we take example of viruses and germs .. new germs and viruses are much modified as compared to old ages because they adopted the ways they can escape from the immunity.. they have an adoption to transmit their DNA material ,also they can take protein coat of host because of which host's immunity cells cannot recognize germs as foriegn particle..and in this way germs and viruses remain for a long time in body due to the adoptations according to age and environment..</em>
3 0
3 years ago
Read 2 more answers
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